An azimuthing propulsion unit (1000) comprising a motor and a propeller, in particular a contra rotating motor (1) and a contra rotating propeller (9, 10) driven by the contra rotating motor.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 9/28 - Cooling of commutators, slip-rings or brushes, e.g. by ventilating
H02K 16/00 - Machines with more than one rotor or stator
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
A marine propulsion unit with a slip-ring cooling system and a contra rotating motor having an inner rotor and an outer rotor, comprises a slip-ring housing and a slip-ring assembly arranged within the slip-ring housing, wherein the slip-ring assembly comprises at least one slip-ring element being in contact to the outer rotor. The marine propulsion unit further comprises an air channel arrangement comprising a first position being connected to the slip-ring housing and a second position. An air fan device is configured to generate a cooling airflow that flows from the first position to the second position of the air channel arrangement creating a negative pressure within the slip-ring housing and an outflow filter unit arranged at the second position of the air channel arrangement for filtering the cooling airflow exiting the air channel arrangement.
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 9/28 - Cooling of commutators, slip-rings or brushes, e.g. by ventilating
H02K 16/00 - Machines with more than one rotor or stator
A marine propulsion unit is provided. The marine propulsion unit comprises a dual rotor electric motor having an inner rotor and an outer rotor and a contra rotating propeller having an inner shaft propeller and an outer shaft propeller. An axial distance of a motor-facing end of the contra rotating propeller to a propeller-facing end of the dual rotor electric motor is at most three times an axial length of the dual rotor electric motor.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 9/28 - Cooling of commutators, slip-rings or brushes, e.g. by ventilating
H02K 16/00 - Machines with more than one rotor or stator
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
According to an embodiment, an drive shaft unit is described. The drive shaft unit comprises a rotatable drive end (DE) inner shaft, a rotatable DE outer shaft, wherein the DE inner shaft runs at least partially within the DE outer shaft, and a DE inner bearing arranged between the DE outer shaft and the DE inner shaft, wherein the DE outer shaft comprises at least one hatch.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63H 23/24 - Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
F16C 19/34 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
A bearing unit for a marine propulsion unit, a marine propulsion unit including a bearing unit, and a method for supporting shafts in a marine propulsion unit is described. The marine propulsion unit includes a rotatable inner shaft and a rotatable outer shaft. The bearing unit includes a bearing arrangement including axial bearings for the inner shaft and the outer shaft; and a bearing housing for housing the bearing arrangement and the parts of the inner shaft and the outer shaft to be supported by the bearing arrangement; wherein the bearing arrangement is configured for allowing a transfer of axial forces between the outer shaft and the inner shaft.
A bearing unit for an drive shaft unit, an drive shaft unit including a bearing unit, and a method for supporting shafts in an drive shaft unit is described. The drive shaft unit includes a rotatable inner shaft and a rotatable outer shaft. The bearing unit includes a bearing arrangement including axial bearings for the inner shaft and the outer shaft; and a bearing housing for housing the bearing arrangement and the parts of the inner shaft and the outer shaft to be supported by the bearing arrangement; wherein the bearing arrangement is configured for allowing a transfer of axial forces between the outer shaft and the inner shaft.
A marine propulsion unit (1000, 2000) with a motor air cooling system and a contra rotating electric motor (1) having an inner rotor (2) and an outer rotor (3), wherein the contra rotating motor comprises a perforated tube (4) with a plurality of radial openings (104, 105), the perforated tube being configured to transmit a torque of the outer rotor to a propeller unit and to support an outer rotor winding; the motor air cooling system comprises at least one ingoing air channel (31, 32) and at least one outgoing air channel (33); and the at least one ingoing air channel is connected to the at least one outgoing air channel via at least some of the plurality of radial openings of the perforated tube (FIG. 1)
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 9/28 - Cooling of commutators, slip-rings or brushes, e.g. by ventilating
H02K 16/00 - Machines with more than one rotor or stator
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
A marine propulsion unit with a motor air cooling system and a contra rotating motor having an inner rotor and an outer rotor, wherein the contra rotating motor comprises a perforated tube with a plurality of radial openings, the perforated tube being configured to transmit a torque of the outer rotor to a propeller unit and to support an outer rotor winding; the motor air cooling system comprises at least one ingoing air channel and at least one outgoing air channel; and the at least one ingoing air channel is connected to the at least one outgoing air channel via at least some of the plurality of radial openings of the perforated tube.
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 16/00 - Machines with more than one rotor or stator
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
Embodiments of the present disclosure relate to a sealing unit for a marine propulsion unit. The propulsion unit comprises a rotatable inner shaft and a rotatable outer shaft, wherein the inner shaft runs at least partially within the outer shaft and wherein the outer shaft runs at least partially within a sealing housing of a marine vessel. The sealing unit comprises: a plurality of chamber systems, wherein each chamber system comprises an inner shaft seal chamber, an outer shaft seal chamber and a passage through the outer shaft fluidly connecting the inner chamber and the outer shaft seal chamber; an inner shaft sealing between the inner shaft and the outer shaft, wherein the inner shaft sealing seals the inner shaft seal chambers of the plurality of chamber systems; and an outer shaft sealing between the outer shaft and the sealing housing, wherein the outer shaft sealing seals the outer shaft seal chambers of the plurality of chamber systems. Further embodiments relate to a method for servicing a sealing unit in a marine propulsion unit.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
The invention relates to a design of a plurality of shafts of a marine propulsion unit with a plurality of propellers. The design is at least partially based on a slit design of a least some of the shafts on the on the non-drive end of the marine propulsion unit. The design enables the mounting of the shafts in combination with other parts such as bearing, slip rings or an electric motor of the marine propulsion unit.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63H 23/24 - Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
According to an embodiment, a marine propulsion unit is described. The marine propulsion unit comprises a rotatable drive end (DE) shaft, a DE outer bearing arranged between the DE shaft and the DE outer bearing housing, wherein the DE outer bearing is configured to be displaced, and wherein the DE outer bearing comprises outer bearing pads, and a DE outer distal seal, wherein the DE outer distal seal is configured to be accessed from within the marine propulsion unit.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63H 23/24 - Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
F16C 19/34 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
A marine propulsion unit is provided. The marine propulsion unit comprises a dual rotor electric motor having an inner rotor and an outer rotor; a contra rotating propeller having an inner shaft propeller and an outer shaft propeller; a drive shaft having an inner shaft connecting the inner rotor to the inner shaft propeller and an outer shaft connecting the outer rotor to the outer shaft propeller; and a slip ring unit for transmitting an electric current to the dual rotor electric motor.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 9/28 - Cooling of commutators, slip-rings or brushes, e.g. by ventilating
H02K 16/00 - Machines with more than one rotor or stator
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
According to an embodiment, a marine propulsion unit is described. The marine propulsion unit comprises a rotatable drive end (DE) inner shaft, a rotatable DE outer shaft, wherein the DE inner shaft runs at least partially within the DE outer shaft, and a DE inner bearing arranged between the DE outer shaft and the DE inner shaft, wherein the DE outer shaft comprises at least one hatch.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63H 23/24 - Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
F16C 19/34 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
A pod propulsion unit includes a housing, a support arm, a propeller shaft rotatably supported within the housing via a first bearing arrangement having a first bearing housing, first fastening means for fastening the first bearing housing to the housing, wherein the first bearing housing and the housing are spaced apart from one another using a first electrical insulation arrangement arranged between the first bearing housing and the housing and configured to electrically insulate the first bearing housing from the housing. The first electrical insulation arrangement includes first ceramic insulators, and the first ceramic insulators contact the first bearing housing and the housing so as to space apart the first bearing housing and the housing from one another.
B63H 1/04 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels
A propulsion unit including a housing supported with a support arm on a hull, a propeller shaft. The propeller shaft has an axis of rotation and is rotatably supported with a first bearing and with a second bearing. The first bearing including a thrust bearing positioned and supported in a bearing house, and a radial bearing that is a sliding bearing. The first bearing including a collar. Opposite side surfaces of the collar is rotatably supported in the bearing house on elastic biasing means loaded slide pieces of the thrust bearing. The radial bearing is positioned and supported in the bearing house, and the radial bearing is positioned axially at least partly between the elastic biasing means loaded slide pieces.
A method and an arrangement for sealing a propeller shaft. The propeller shaft is rotatably supported with a bearing arrangement inside a pod that is suspended at a hull of the marine vessel. The bearing arrangement includes at least two seal rings axially spaced apart from each other such that at least one lubricant seal chamber is delimited. The arrangement includes a lubrication arrangement for conducting lubricant to and from said bearing arrangement. The lubrication arrangement includes an additional lubrication circulation line for conducting a part of said flow of lubricant to and from said at least one lubricant seal chamber. The lubrication arrangement being additionally configured to create a flow of lubricant in the additional lubricant circulation line and in said at least one lubricant seal chamber.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electro-dynamic and electronic apparatus and instruments for
switching, control, regulating, measuring, inspection and
signal transmitting, electric plugs and sockets, electrical
connection terminals, bus systems (electronics)and their
components, electrical distribution boxes; electric
installation equipment and material, namely electric
conduits, electric cables and wires, conductors, switches,
light switches, fuses, electric cables, electric cable
outlets, buzzers; luminous signs; transmitters of electronic
signals; light dimmers.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electro-dynamic and electronic apparatus and instruments for
switching, control, regulating, measuring, inspection and
signal transmitting, electric plugs and sockets, electrical
connection terminals, bus systems (electronics) and their
components, electrical distribution boxes; electric
installation equipment and material, namely electric
conduits, electric cables and wires, conductors, switches,
light switches, fuses, electric cables, electric cable
outlets, buzzers; luminous signs; transmitters of electronic
signals; light dimmers.
A draining arrangement of a propulsion unit of a marine vessel. The propulsion unit includes a shell structure. The shell structure limiting at least one bottom section configured to receive liquids. The draining arrangement including a pneumatically operated drainage arrangement including an intermediate tank within the shell structure, a pressurizing arrangement functionally connected to the intermediate tank and configured to selectively provide a vacuum in the intermediate tank or an excess pressure in the intermediate tank, a first liquid line that is provided between the intermediate tank and said at least one bottom section, and a second liquid to line that is provided between the intermediate tank and a collector arrangement within the hull of the marine vessel.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 13/00 - Conduits for emptying or ballastingSelf-bailing equipmentScuppers
B63H 5/07 - Arrangements on vessels of propulsion elements directly acting on water of propellers
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 20/00 - Outboard propulsion units, e.g. outboard motors or Z-drivesArrangements thereof on vessels
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
22.
Arrangement And Method For Sealing A Propeller Shaft Of A Marine Vessel
An arrangement and a method for sealing a propeller shaft of a marine vessel. The arrangement includes a propeller shaft rotatable supported with at least one bearing, a bearing arrangement, a first lubrication arrangement including a first lubricant circulation line for conducting first lubricant to and from the bearing arrangement, a shaft seal arrangement for sealing the propeller shaft against sea water, and a second lubrication arrangement including a second lubricant circulation line for conducting second lubricant to and from the shaft seal arrangement. A first heat exchanger is in thermal contact with the first lubricant circulation line and in thermal contact with the second lubricant circulation line.
An arrangement and a method for sealing a propeller shaft of a marine vessel. The arrangement including a shaft seal arrangement and a lubrication arrangement including a lubricant circulation line for conducting lubricant to and from the shaft seal arrangement and a lubricant circulator. The lubricant circulation line includes a connection line that is connected in fluid connection with the lubricant circulation line downstream of the lubricant circulator and upstream of the shaft seal arrangement, and that is connected in fluid connection with a second part of the lubricant circulation line so as to selectively conduct a part of the flow of lubricant past the shaft seal arrangement. At least one hydraulically operated pressure relief means is configured to control the flow of lubricant in the connection line.
F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
F16N 7/40 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pumpCentral lubrication systems in a closed circulation system
F16N 21/00 - ConduitsJunctionsFittings for lubrication apertures
Presented is an arrangement and a method for sealing a propeller shaft (1) of a marine vessel. The arrangement comprising a shaft seal arrangement (2) and a lubrication arrangement (3) comprising a lubricant circulation line (4) for conducting lubricant to and from said shaft seal arrangement (2) and a lubricant circulator (5). The lubricant circulation line (4) comprises a connection line (7) that is connected in fluid connection with the lubricant circulation line (4) downstream of the lubricant circulator (5) and upstream of the shaft seal arrangement (2), and that is connected in fluid connection with a second part of the lubricant circulation line (4) so as to selectively conduct a part of the flow of lubricant past the shaft seal arrangement (2). At least one hydraulically operated pressure relief means (8) is configured to control the flow of lubricant in the connection line (7).
F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
F16J 15/46 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
F16N 7/40 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pumpCentral lubrication systems in a closed circulation system
25.
ARRANGEMENT AND METHOD FOR SEALING A PROPELLER SHAFT OF A MARINE VESSEL
Presented is an arrangement and a method for sealing a propeller shaft (1) of a marine vessel. The arrangement comprises a propeller shaft (1) rotatable supported with at least one bearing (2), a bearing arrangement (3), a first lubrication arrangement (4) comprising a first lubricant circulation line (5) for conducting first lubricant to and from said bearing arrangement (3), a shaft seal arrangement (7) for sealing the propeller shaft (1) against sea water, and a second lubrication arrangement (8) comprising a second lubricant circulation line (9) for conducting second lubricant to and from said shaft seal arrangement (7). A first heat exchanger (11) is in thermal contact with the first lubricant circulation line (5) and in thermal contact with the second lubricant circulation line (9).
F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
F16J 15/46 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
F16N 7/40 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pumpCentral lubrication systems in a closed circulation system
A propulsion unit (1) for a marine vessel, comprising a shell structure (2), a shaft (4) rotatably coupled to a propulsion motor (3) inside the shell structure (2), and a propeller (5) coupled to the shaft (4) outside the shell structure (2). A shaft seal arrangement (6) is provided to engage the shaft (4), such that at least a first seal chamber (6a) is delimited between adjacent seal lips (6’) and the shaft (4). A first lubrication arrangement is provided for circulating a first lubricant through the first seal chamber (6a). The first lubrication arrangement (7) further comprises a first lubricant heat exchanger (7e) arranged at least partly outside of the shell structure (2) for conducting the first lubricant therethrough and for transferring heat from the first lubricant to an outside environment of the shell structure (2).
A propulsion unit for a marine vessel, including a shell structure, a shaft rotatably coupled to a propulsion motor inside the shell structure, and a propeller coupled to the shaft outside the shell structure. A shaft seal arrangement is provided to engage the shaft, such that at least a first seal chamber is delimited between adjacent seal lips and the shaft. A first lubrication arrangement is provided for circulating a first lubricant through the first seal chamber. The first lubrication arrangement further includes a first lubricant heat exchanger arranged at least partly outside of the shell structure for conducting the first lubricant therethrough and for transferring heat from the first lubricant to an outside environment of the shell structure.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63H 23/34 - Propeller shaftsPaddle-wheel shaftsAttachment of propellers on shafts
F16H 57/04 - Features relating to lubrication or cooling
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
28.
Method and a steering arrangement for turning a propulsion unit of a vessel
An arrangement including a gearwheel connected to the propulsion unit, a steering electric motor operatively connected to the gearwheel and controlled by a drive, a force transmission arrangement including a clutch between the gearwheel and the steering electric motor, and a measurement unit for measuring rotational motion positioned at each side of the clutch. The steering electric motor is arranged to rotate the gearwheel and thereby also the propulsion unit. A difference in the output signals of the two measuring units indicating slipping of the clutch is detected. The steering electric motor is controlled to at least reduce the difference in the output signals when the difference exceeds a predetermined threshold.
B63H 25/24 - Transmitting of movement of initiating means to steering engine by electrical means
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
09 - Scientific and electric apparatus and instruments
Goods & Services
Electro technical and electronic apparatus and instruments for switching, control, regulating, measuring, inspection and signal transmitting, plugs and sockets, connection terminals, bus systems and their components, connector boxes; electronical installation equipment and material, namely electric conduits, electric cables and wires, conductors, switches, light switches, fuses, electric cables, cable outlets, buzzers; luminous signs; transmitters of electronic signals; light dimmers.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electro technical and electronic apparatus and instruments for switching, control, regulating, measuring, inspection and signal transmitting, plugs and sockets, connection terminals, bus systems and their components, connector boxes; electronical installation equipment and material, namely electric conduits, electric cables and wires, conductors, switches, light switches, fuses, electric cables, cable outlets, buzzers; luminous signs; transmitters of electronic signals; light dimmers.
31.
METHOD OF CONTROLLING PROPULSION SYSTEM OF MARINE VEHICLE AND PROPULSION SYSTEM
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
32.
APPARATUS, METHOD AND COMPUTER PROGRAM FOR CONTROLLING PROPULSION OF MARINE VESSEL
Apparatus, method and computer program for controlling propulsion of marine vessel. The propulsion is implemented by a foil wheel propulsion system. The method includes: receiving (602) a wheel operation status from a wheel drive;receiving (604) a plurality of foil operation statuses from a plurality of foil drives; receiving (606) a command from a vessel control system; generating (608) wheel control data for the wheel drive to control a foil pitch function of the foil wheel propulsion system based on the command in view of the wheel operation status; and generating (610) foil control data for the plurality of the foil drives to further control the foil pitch function of the foil wheel propulsion system based on the command in view of the wheel operation status and the plurality of foil operation statuses, wherein a reference torque of the foil control data for each foil drive is generated (612) using a foil feedforward model.
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
A propulsion unit includes a housing supported on a vessel. A propeller shaft extends in the housing. The propeller shaft is rotatably supported with a first bearing and a second bearing. A propeller is attached to at least one end of the propeller shaft. The first bearing includes a first radial bearing and a first thrust bearing. The first radial bearing is a sliding bearing positioned axially inside the first thrust bearing. The first bearing is positioned at the first end of the housing and the second bearing being positioned at the second end of the housing or vice a versa.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
The disclosure relates to a drive arrangement (1 ) for a cycloidal marine propulsion unit (2). The drive arrangement (1 ) comprises at least two electrical blade motors (3a) each associated to a respective blade (3) for pivoting thereof, each blade motor (3a) being operationally coupled to a respective blade drive (3b) for actuating the corresponding blade motor. The at least two blade drives (3b) each comprise a respective blade drive power converter operationally coupled to a first common intermediate DC-link (4), wherein the at least two blade drives (3b) being configured to feed power from the first common intermediate DC-link (4) to their respective blade motors (3a), and to feed regenerative power from their respective blade motors (3a) to the first common intermediate DC-link (4). The disclosure also concerns a marine propulsion unit having such a drive arrangement, and a method of operating such a drive arrangement.
B63J 3/02 - Driving of auxiliaries from propulsion power plant
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
Described is a marine propulsion unit comprising a rotary casing (1) rotatable about a central axis A, and blades (2) extending axially from the rotary casing (1) for rotation with the rotary casing (1) about the central axis A, wherein each blade (2) is mounted for pivotal movement about blade axes B. A blade shaft portion (3) of each blade (2) is at least partly surrounded by a blade housing (4) and by a blade portion (5) of each blade (2) is outside the blade housing (4), wherein the blade housing (4) is releasable attached to the rotary casing (1), and each blade (2) being supported in the blade housing (4) by means of bearings for said pivotal movement.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
Described is a marine propulsion unit comprising a rotary casing (1) rotatable about a central axis A, and blades (2) extending axially from the rotary casing (1) for rotation with the rotary casing (1) about the central axis A, wherein each blade (2) is mounted for pivotal movement about blade axes B. A blade shaft portion (3) of each blade (2) is at least partly surrounded by a blade housing (4) and by a blade portion (5) of each blade (2) is outside the blade housing (4), wherein the blade housing (4) is releasable attached to the rotary casing (1), and each blade (2) being supported in the blade housing (4) by means of bearings for said pivotal movement.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
37.
A CYCLOIDAL MARINE PROPULSION UNIT AND A MARINE VESSEL EQUIPPED THEREWITH
A cycloidal marine propulsion unit (1), comprising a hollow rotary casing (2) having a central axis (2a) and defining a central inner space (2b) with an opening (2c) at an axial end thereof. A mounting body (3) rotatably supports the rotary casing (2) on a hull (4) of a marine vessel. A rotating arrangement (5) is provided for rotating said hollow rotary casing (2), while a plurality of blades (6) extend axially from the rotary casing (2) away from the hull (4). Each blade (6) is mounted for pivotal movement with respect to the rotary casing (2), about respective blade axes (6a). The rotating arrangement (5) is configured to rotate the rotary casing (2) by a circumference thereof. A blade shaft portion (6b) of each blade (6) is at least partly received within the central inner space (2b) so as to attach said blade (6) to the rotary casing (6).
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
09 - Scientific and electric apparatus and instruments
Goods & Services
Drives for motors; all goods mentioned before not in the field of tube cutting machines Electric control equipment for energy control, namely, electrical controlling devices; Converters, electric; Inverters; Power regulating apparatus, namely, apparatus for controlling power in the nature of power controllers and voltage regulators; Electrical filters, namely, filters for filtering electrical current or other electrical signals; Power conditioners for conditioning electrical power; Computer software, recorded, to be used in connection with electric control equipment for energy control in relation to controlling, monitoring the functioning of electric converters, electricity inverters, power regulating apparatus, electrical filters, power conditioners and drives for motors; all goods mentioned before not in the field of tube cutting machines
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Drives for machines and motors, exempt in the field of tube cutting machines. Electric control devices for energy management; Converters, electric; Inverters [electricity]; Power regulating apparatus; Electrical filters for improving the quality of electrical power; Power conditioners; Computer software, recorded, to be used in connection with electric control devices for energy management, converters, electric, inverters (electricity), power regulating apparatus, electrical filters for improving the quality of electrical power, power conditioners and drives for machines and motors; all goods mentioned before not in the field of tube cutting machines. Maintenance, repair and installation services relating to electric control equipment for energy control, converters (electricity), inverters [electricity], power regulators, electrical filters, power conditioners and drives for machines and motors; all services mentioned before not in the field of tube cutting machines.
40.
Method and a control arrangement for controlling vibrations of a propulsion unit of a vessel
The propulsion unit includes a frame construction having an upper portion forming a support arm protruding from a hull of the vessel and a lower portion forming a longitudinal compartment provided with a propeller shaft having at least one propeller attached thereto, and a first electric motor driving the propeller shaft. The method includes measuring vibrations of the propulsion unit with at least one measuring device, forming a first auxiliary torque control signal based on the measured vibration signal, adding the first auxiliary torque control signal to a first torque control signal produced by a first torque controller of the first electric motor. The first auxiliary torque signal acts against the measured vibrations.
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63J 99/00 - Subject matter not provided for in other groups of this subclass
G05D 19/02 - Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
F16F 15/00 - Suppression of vibrations in systemsMeans or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
B63B 71/00 - Designing vesselsPredicting their performance
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63B 79/00 - Monitoring properties or operating parameters of vessels in operation
The arrangement includes at least one steering electric motor rotating the propulsion unit via a force transmission arrangement. The force transmission arrangement includes a differential including a first shaft connected to the steering electric motor, a second shaft connected to the propulsion unit, and a third shaft connected to a brake device. The third shaft is locked from rotation when a torque produced by an external force on the propulsion unit is below a threshold value, whereby power is distributed only from the steering electric motor to the propulsion unit or vice a versa. The third shaft is allowed to start rotating when the torque produced by the external force on the propulsion unit exceeds the threshold value, whereby power is distributed from the steering electric motor to the rotation of the propulsion unit and to the brake device or from the rotation of the propulsion unit to the steering electric motor and to the brake device.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 25/42 - Steering or dynamic anchoring by propulsive elementsSteering or dynamic anchoring by propellers used therefor onlySteering or dynamic anchoring by rudders carrying propellers
B63H 20/16 - Transmission between propulsion power unit and propulsion element allowing movement of the propulsion element in a horizontal plane only, e.g. for steering
The electrical switch (500) comprises a first and a second fixed contact (100, 200), and a movable knife contact (400) comprising at least one longitudinal pair of blades (410, 420) being flexibly connected to each other, whereby the blades form, in a switching event, contact with contact portions (120, 220) of the first and/or the second fixed contact. Opposite surfaces of the contact portions of the first and the second fixed contact comprise a roughened area (130, 230) and the inner surface of each blade comprises a protruded area (430) or opposite surfaces of the contact portions of the first and the second fixed contact comprise a protruded area (130, 230) and the inner surface of each blade comprises a roughened area.
H01H 1/50 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
The electrical switch comprises two fixed contacts and a rotatable knife contact having a rotational axis (Z1-Z1) and comprising at least one longitudinal pair of blades (410) flexibly connected to each other. The two fixed contacts as well as the blades in the rotatable knife contact are of a first electrically conductive material composition. The first and the second fixed contact comprises a first contact pin (240) and outer ends in the blades in the rotatable knife contact comprises a second contact pin (440). The first contact pin and the second contact pin are of a second electrically material composition, which is different from the first material composition. The first contact pin and the second contact pin pass over each other during a switching event.
H01H 1/50 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
H01H 1/06 - Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
A deceleration mechanism (100) for a shifting device and a shifting device thereof. The deceleration mechanism (100) comprises: a shaft (1) configured to rotate in response to operation of an actuator, so as to drive a moving element of the shifting device; at least one deceleration wheel (2) fixed onto the shaft (1) and having a deceleration profile (6); and rocker (4) engaged with the deceleration wheel (2). The deceleration wheel (2) is configured to respond to rotation of the shaft (1), such that the rocker (4) moves along the deceleration profile (6) on the deceleration wheel (2) in order to decelerate the rotation of the shaft (1). The deceleration mechanism (100) can decelerate operation of the moving elements of the shifting device without affecting shifting performance or the service life of the shifting device.
Provided is a switch apparatus for a switch. The switch apparatus comprises: a handle comprising a first slot; a mode button capable of being operated to change the operating modes of a switch, the mode button comprising a second slot; a sliding block connected to the mode button and capable of moving in a first direction in association with the movement of the mode button, the sliding block comprising a first block; and a lever operably opened in a rotatable manner and comprising a pin, wherein when the mode button is arranged in a service location, the first block is accommodated in the first slot so as to retain the handle, and in response to the case where the lever is opened in a rotatable manner, the pin can be operated to pass through the second slot to prevent the movement of the mode button.
Disclosed are a switching device and a switch comprising the switching device. The switching device comprises: a handle shaft (4), the handle shaft being coupled to a handle (1) and arranged to be rotatable in a peripheral direction (C) in response to the operation of the handle (1); and a locking board (6), the locking board being in rotational correlation with the handle shaft (4), so as to be movable in a first direction (X). The handle shaft (4) and the locking board (6) are operable to restrict the rotation of the handle shaft (4) when the handle shaft (4) reaches an off position of the switching device. The solution is used to prevent the handle from being directly operated from one working position to another working position without intermediate stopping.
Provided is a switch apparatus, comprising an energy storage and direction changing mechanism capable of realising energy storage and direction changing of a main shaft by only using a solenoid. In addition, the switch apparatus can be used in a two-station automatic changeover switch and a three-station automatic changeover switch, so as to meet different application scenarios or different market demands. Furthermore, all changeovers can be realized by means of independent manual and electric operations, and each changeover action only needs to supply power to a single electromagnetic valve.
An embodiment of the present disclosure provides a switch device. The switch device comprises: a switch component, comprising a first main shaft, and selectively connecting or breaking at least one circuit in response to the rotation of the first main shaft; and an operation mechanism, comprising a second main shaft used for actuating the first main shaft. The switch component also comprises a first interface. The operation mechanism also comprises a second interface. In response to the combination of the first interface and the second interface, the second main shaft is detachably coupled to the first main shaft.
A utilization unit (500) of an electric switch comprises an actuator module (100) which includes actuators and power transmission apparatus to operate the electric switch (600), a power module (200) which includes power supply means for the actuators of the actuator module (100), a control module (300) which includes control means to control the power module (200), and data transmission means. The actuator module (100), the power module (200), and the control module (300) constitute a modular structure, whereby the power module (200) and the control module (300) are detachably connected to each other and the actuator module (100) so that the power module (200) and the control module (300) are both separately replaceable in the utilization unit (500).
H01H 9/24 - Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
H05K 5/00 - Casings, cabinets or drawers for electric apparatus
H01H 9/26 - Interlocking, locking, or latching mechanisms for interlocking two or more switches
H01H 3/42 - Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
H01H 19/46 - Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having three operative positions, e.g. off/star/delta
H01H 19/64 - Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
The electrical switch (500) comprises a first and a second fixed contact (100, 200), and a rotatable knife contact (400) comprising at least one pair of blades (410, 420) being flexibly connected to each other and rotating around a rotational axis (Z1-Z1). A third fixed contact (300) is positioned on an opposite side of the rotational axis (Z1-Z1) in relation to the adjacent first and second fixed contact (100, 200) and a middle portion (450) of the rotatable knife contact (400) is electrically connected to the third fixed contact (300). The rotatable knife contact (400) connects in a first switching position the first fixed contact (100) and in a second switching position the second fixed contact (200) to the third fixed contact (300).
H01H 19/46 - Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having three operative positions, e.g. off/star/delta
H01H 19/36 - Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having only two operative positions, e.g. relatively displaced by 180°
H01H 1/36 - Contacts characterised by the manner in which co-operating contacts engage by sliding
H01H 1/50 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
H01H 1/06 - Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
A change-over switch comprising a frame (2) having a first side wall (21) and a second side wall (22), a first supply terminal (41), a second supply terminal (42), a load terminal (6), and at least one gas flow opening (31, 32) for discharging gasses from the frame (2). The second side wall (22) faces substantially opposite direction relative to the first side wall (21). The change-over switch is adapted to selectively provide a first connection between the first supply terminal (41) and the load terminal (6), and a second connection between the second supply terminal (42) and the load terminal (6). The first supply terminal (41) and the second supply terminal (42) project from the first side wall (21), and the load terminal (6) projects from the second side wall (22). The at least one gas flow opening (31, 32) is formed in the second side wall (22).
A switching device which comprises: a body (2) which has a first side wall (21) and a first end wall (23), the first side wall (21) being perpendicular in relation to a longitudinal direction, and the first end wall (23) is substantially perpendicular to the first side wall (21); and a first fixed contact (41) comprising an inner section (412) and an outer section (414), the inner section (412) having a thickness dimension, the outer section (414) protrudes from the first side wall (21) in the longitudinal direction. The first fixed contact (41) comprises a test terminal (11) which is integral to the inner section (412) and protrudes from the inner section (412) in a lateral direction, which is perpendicular to the longitudinal direction and an end wall plane defined by the first end wall (23), the test terminal (11) having a substantially planar test terminal surface (115), and the test terminal (11) has a thickness dimension which is parallel to the thickness dimension of the inner section (412), the thickness dimension of the test terminal (11) is substantially smaller than the thickness dimension of the inner section (412), the test terminal (11) is accessible from outside the body (2) from the direction of the first end wall (23), and the test terminal (11) is adapted to be connected to a female connector.
The electrical switch (500) comprises a first and a second fixed contact (100, 200), and a rotatable knife contact (400) comprising at least one pair of blades (410, 420) being flexibly connected to each other and rotating around a rotational axis (Z1-Z1). A third fixed contact (300) is positioned on an opposite side of the rotational axis (Z1-Z1) in relation to the adjacent first and second fixed contact (100, 200) and a middle portion (450) of the rotatable knife contact (400) is electrically connected to the third fixed contact (300). The rotatable knife contact (400) connects in a first switching position the first fixed contact (100) and in a second switching position the second fixed contact (200) to the third fixed contact (300).
H01H 19/46 - Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having three operative positions, e.g. off/star/delta
H01H 19/36 - Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having only two operative positions, e.g. relatively displaced by 180°
H01H 1/36 - Contacts characterised by the manner in which co-operating contacts engage by sliding
H01H 1/50 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
H01H 1/06 - Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
The propulsion unit comprises a support frame (20), a nozzle (60) attached to the support frame, a propeller (40) within the nozzle, the propeller having an axis (X-X) of rotation and comprising propeller blades (41-44), and a support construction (50) on either axial side of the propeller, the support construction comprising vanes (51-57) extending inwards in a duct (65) formed by the nozzle. A minimum axial distance (A5) between the blades of the propeller and the vanes of the support construction is in the range of 0.5 to 10% of a diameter of the propeller.
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
The vessel comprises a hull (20) having a bottom line (BL) and a bow (30). A recess (100) is arranged in the bow above the bottom line of the hull of the vessel, the recess comprising a bottom surface (110) forming a portion of the hull of the vessel. At least one thruster (60, 70) being rotatable around a vertical axis (Y1, Y2) is positioned within the recess so that a propeller (63, 73) of the thruster in a first position, is positioned below the bottom surface of the recess and in a second position, is positioned above the bottom surface of the recess.
B63H 5/03 - Arrangements on vessels of propulsion elements directly acting on water of paddle wheels, e.g. of stern wheels movably mounted with respect to the hull, e.g. having means to reposition paddle wheel assembly, or to retract paddle or to change paddle attitude
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 5/20 - Arrangements on vessels of propulsion elements directly acting on water of propellers of emergency propellers, e.g. arranged at the side of the vessel movable from a working position to a non-working position
B63H 20/04 - Mounting of propulsion units in a well
The propulsion unit comprises a support frame (20), a propeller (40) rotating around a shaft line (X-X), and a nozzle (60) surrounding the propeller and comprising an upstream end (61) and a downstream end (62). A support construction (50) is positioned downstream of the propeller for supporting the nozzle on an end portion (22A) of the support frame. The support construction comprises vanes (51-57) extending between the nozzle and the end portion of the support frame. The direction of each vane (51-57) is inclined in relation to a radial direction being defined by a radius extending perpendicularly from the shaft line to the nozzle.
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
The arrangement comprises at least one steering electric motor (60) rotating the propulsion unit (20) via a force transmission arrangement (50). The force transmission arrangement (50) comprises a differential (100) comprising a first shaft (111) connected to the steering electric motor (60), a second shaft (131) connected to the propulsion unit (20), and a third shaft (141) connected to a brake device (200). The third shaft (141) is locked from rotation when a torque produced by an external force on the propulsion unit (20) is below a threshold value, whereby power is distributed only from the steering electric motor (60) to the propulsion unit (20) or vice a versa. The third shaft (141) is allowed to start rotating when the torque produced by the external force on the propulsion unit (20) exceeds the threshold value, whereby power is distributed from the steering electric motor (60) to the rotation of the propulsion unit (20) and to the brake device (200) or from the rotation of the propulsion unit (20) to the steering electric motor (60) and to the brake device (200).
B63H 20/14 - Transmission between propulsion power unit and propulsion element
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 25/10 - Steering gear with mechanical transmission
B63H 25/42 - Steering or dynamic anchoring by propulsive elementsSteering or dynamic anchoring by propellers used therefor onlySteering or dynamic anchoring by rudders carrying propellers
The propulsion unit (20) comprises a frame construction (21) having an upper portion (22) forming a support arm protruding from a hull (11) of the vessel (10) and a lower portion (23) forming a longitudinal compartment provided with a propeller shaft (41) having at least one propeller (55) attached thereto, and a first electric motor (30) driving the propeller shaft (41). The method comprises measuring vibrations of the propulsion unit (20) with at least one measuring device (300), forming a first auxiliary torque control signal (Tq11) based on the measured vibration signal, adding the first auxiliary torque control signal (Tq11) to a first torque control signal (Tq1) produced by a first torque controller (230) of the first electric motor (30). The first auxiliary torque signal (Tq11) acts against the measured vibrations.
B63H 1/15 - Propellers having vibration damping means
B63H 21/30 - Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
G05D 19/02 - Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
61.
A METHOD AND A CONTROL ARRANGEMENT FOR CONTROLLING VIBRATIONS OF A PROPULSION UNIT OF A VESSEL
The propulsion unit (20) comprises a frame construction (21) having an upper portion (22) forming a support arm protruding from a hull (11) of the vessel (10) and a lower portion (23) forming a longitudinal compartment provided with a propeller shaft (41) having at least one propeller (55) attached thereto, and a first electric motor (30) driving the propeller shaft (41). The method comprises measuring vibrations of the propulsion unit (20) with at least one measuring device (300), forming a first auxiliary torque control signal (Tq11) based on the measured vibration signal, adding the first auxiliary torque control signal (Tq11) to a first torque control signal (Tq1) produced by a first torque controller (230) of the first electric motor (30). The first auxiliary torque signal (Tq11) acts against the measured vibrations.
B63H 1/15 - Propellers having vibration damping means
B63H 21/30 - Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
G05D 19/02 - Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing information relating to shipbuilding;
shipbuilding; providing information relating to the repair
or maintenance of vessels; maintenance and repair of ships. Technical consultancy services relating to marine
engineering; design services in the field of naval
shipbuilding, design of boats, provision of technical
consultancy in the shipping industry, ship design
consultancy services; design of seagoing vessels; design and
development of energy management software for seagoing
vessels, advisory services relating to the use of energy of
seagoing vessels, consultancy in the field of energy-saving
regarding seagoing vessels, advisory service relating to
energy efficiency of seagoing vessels, providing technical
advice relating to energy-saving measures for seagoing
vessels.
63.
STEERING SYSTEM, AZIMUTHING PROPULSION SYSTEM, AND METHOD FOR ABSORBING HEAT
According to an example aspect of the present invention, there is provided a steering system (30) of an azimuthing propulsion system (1), the steering system (30) comprising at least one hydraulic motor (2) configured to operate an azimuthing system of a propulsion unit (3), the propulsion unit (3) being arranged outside a vessel, a fluid cycle (4) from the at least one hydraulic motor (2) via a separate hydraulic overload protection unit and back to the motor (2), the overload protection unit comprises a pressure relief unit and a heat management unit, and wherein the pressure relief unit comprises a pressure relief valve (5), andthe heat management unit comprises a heat storage, a heat exchanger, or a combination of both, and wherein the fluid cycle (4) comprising the overload protection unit (32) is configured to at least partially absorb heat generated during turning of the propulsion unit (3).
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
According to an example aspect of the present invention, there is provided a steering system (30) of an azimuthing propulsion system (1), the steering system (30) comprising at least one hydraulic motor (2) configured to operate an azimuthing system of a propulsion unit (3), the propulsion unit (3) being arranged outside a vessel, a fluid cycle (4) from the at least one hydraulic motor (2) via a separate hydraulic overload protection unit and back to the motor (2), the overload protection unit comprises a pressure relief unit and a heat management unit, and wherein the pressure relief unit comprises a pressure relief valve (5), andthe heat management unit comprises a heat storage, a heat exchanger, or a combination of both, and wherein the fluid cycle (4) comprising the overload protection unit (32) is configured to at least partially absorb heat generated during turning of the propulsion unit (3).
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
A support strut has an upper end rotatable supported at a bottom of a vessel and a lower end supporting a casing. A first electric motor within the casing drives a propeller via a first shaft. An annular nozzle surrounds an outer perimeter of the propeller and is fixedly supported on the casing, with a support construction comprising at least three vanes extending in the radial direction between the outer perimeter of the casing and the inner perimeter of the nozzle. A duct for water flow is formed through the interior of the annular nozzle. The propeller pulls the vessel in a driving direction. The vanes are positioned after the propeller in the driving direction of the vessel, whereby the vanes are optimized for redirecting rotational flow components of the flow produced by the propeller into axial thrust.
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Providing information relating to shipbuilding; shipbuilding; providing information relating to the repair of maintenance of vessels; maintenance and repair of ships;
(2) Technical consultancy services relating to marine engineering; design services in the field of naval shipbuilding; design of boats; provision of technical consultancy in the shipping industry; ship design consultancy services; design of seagoing vessels; design and development of energy management software for seagoing vessels, advisory services relating to the use of energy of seagoing vessels, consultancy in the field of energy-saving regarding seagoing vessels, advisory service relating to energy efficiency of seagoing vessels, providing technical advice relating to energy-saving measures for seagoing vessels;
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing information relating to shipbuilding; shipbuilding; providing information relating to the repair or maintenance of vessels; maintenance and repair of ships Technical consultancy services relating to marine engineering; design services in the field of naval shipbuilding, design of boats, provision of technical consultancy in the shipping industry, namely, ship design consultancy services; design of seagoing vessels; design and development of energy management software for seagoing vessels, advisory services relating to the use of energy of seagoing vessels, consultancy in the field of energy-saving regarding seagoing vessels, advisory service relating to energy efficiency of seagoing vessels, providing technical advice relating to energy-saving measures for seagoing vessels
The propulsion unit comprises a strut having an upper portion with an upper end portion passing through a passage formed between a first outer bottom and a second inner bottom in a vessel. The upper end portion is rotatable supported with a slewing bearing and sealed with a slewing seal. An upper slewing seal prevents lubrication medium leakage from the slewing bearing, whereby access to the upper slewing seal is provided in a radial direction from the interior of the vessel or from the interior of the strut in order to be able to service the upper slewing seal. A lower slewing seal is positioned at a vertical distance below the upper slewing seal and prevents sea water from penetrating into the hull of the vessel, whereby access to the lower slewing seal is provided in a radial direction from the interior of the vessel or from the interior of the strut in order to be able to service the lower slewing seal.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
A control arrangement for controlling a vessel, comprising at least one propulsion unit (200A, 200B), and a control system (220) for controlling the at least one propulsion unit. The control arrangement is arranged to determine load affected by the propulsion unit on the vessel (210), and the control arrangement is arranged to set a value for an operation parameter of the propulsion unit based on the determined load.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 25/42 - Steering or dynamic anchoring by propulsive elementsSteering or dynamic anchoring by propellers used therefor onlySteering or dynamic anchoring by rudders carrying propellers
G05D 1/02 - Control of position or course in two dimensions
G01L 5/12 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
An electric switch (1) comprising a mechanism module (2) and a contact module (3), the contact module comprising a base element (46), a cover element (47), fixed contacts (41) and a rotary roll (39) for receiving moving contacts (40), the mechanism module comprising a base element (5), a cover element (6), a front pipeshaft (9) for controlling the switch from front, an inner pipeshaft (12) for controlling the switch from side end, the pipeshafts (9, 12) being engaged to each other by teeth (19, 22) to form a gear for transferring a moment from the front pipeshaft to the inner pipeshaft, a lever (13) for transferring a moment to the roll, the lever arranged to receive the inner pipeshaft, the inner pipeshaft and the lever being rotatable engaged with each other, and main springs (14) for giving a rotational moment for the lever and being connected of first ends (49) to the base element and the main springs being connected to the lever of their second ends (50).
A vessel and a method in a vessel with a hull and a propulsion unit. The propulsion unit comprises a hollow strut rotatably attached to the hull of 5 the vessel, a propeller shaft (41) having an axial centre line (X-X) and being positioned and supported in the lower portion of the strut with bearings (51, 52), a propeller (80) being attached to at least one end of the propeller shaft (41) protruding from the lower portion (23) of the strut (21), and an electric motor (30) driving the propeller shaft. An additional support arrangement (110,10 120) is positioned at least in one end portion of the propeller shaft (41) axially (X-X) outwards from the bearings. The support arrangement comprises a first support surface (110) formed in connection with the propeller shaft and a second support surface (120) mating with the first support surface and being formed in connection with the lower portion of the strut. The second support 15 surface is positioned at a predetermined distance (D1) from the first support surface so that a slot (S1) is formed between the first support surface and the second support surface facing towards each other. The bending of the propeller shaft due to external loads acting on the propeller is restricted to a predetermined maximum value with the support surfaces.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 20/00 - Outboard propulsion units, e.g. outboard motors or Z-drivesArrangements thereof on vessels
B63H 20/14 - Transmission between propulsion power unit and propulsion element
The sealing arrangement comprises a propeller shaft (31) rotatably supported with at least one bearing (41), a water seal (100) positioned on the propeller shaft, a first oil seal (200) positioned on the propeller shaft adjacent to the bearing at an axial (X-X) distance (A2) from the water seal, an intermediate compartment (300) extending between the water seal and the first oil seal and being filled with a gas, a first pressure sensor (91) for measuring the pressure of the sea water acting on the propeller shaft, a second pressure sensor (92) for measuring the pressure of the gas within the intermediate compartment, and a pressure system (500) for producing a pressure to the gas within the intermediate compartment, whereby the pressure of the gas within the intermediate compartment is kept at a lower level compared to the pressure of the sea water acting on the propeller shaft.
A ship comprising a hull (100) having a transom (106) and a bottom (102), and an azimuthing propulsion unit (110) arranged to the bottom of the ship hull, which azimuthing propulsion unit comprises a propeller (118). The azimuthing propulsion unit (110) comprises an exposed operation mode in which the propeller (118) sets, behind the transom (106) of the hull (100) and that the azimuthing propulsion unit (110) is rotatable and comprises a protected position mode in which the azimuthing propulsion unit (110) stays below the hull (100) of the ship.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
The arrangement comprises a seal (500) sealing a cylindrical rotating part (100) passing through an opening in a support structure in the vessel (10) against a medium (W). The seal (500) comprises a package of annular seal rings (510, 520, 530). Each seal ring (510, 520, 530) comprises a seal part (512, 522, 532) being supported in a corresponding seal support part (511, 521, 531). The seal support part (511) in the first seal ring (510) positioned closest to the medium (W) has the form of a cylinder (511A) provided with an annular flange (511B) at one end of the cylinder (511A). The outer surface of the cylinder (511A) is supported and sealed with an auxiliary seal (610) against the inner circumference of the opening. The annular flange (511B) is supported against the support structure (83) surrounding the opening. There are adjusting means (900) for adjusting the position of the first seal support part (511) in relation to the support structure (83) surrounding the opening in order to relocate the seal (500) in an axial direction in relation to the rotating part (31, 100).
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
The arrangement comprises a seal (500) sealing a cylindrical rotating part (100) passing through an opening in a support structure in the vessel (10) against a medium (W). The seal (500) comprises a package of annular seal rings (510, 520, 530). Each seal ring (510, 520, 530) comprises a seal part (512, 522, 532) being supported in a corresponding seal support part (511, 521, 531). The seal support part (511) in the first seal ring (510) positioned closest to the medium (W) has the form of a cylinder (511A) provided with an annular flange (511 B) at one end of the cylinder (511A). The outer surface of the cylinder (511A) is supported and sealed with an auxiliary seal (610) against the inner circumference of the opening. The annular flange (511 B) is supported against the support structure (83) surrounding the opening. There are adjusting means (900) for adjusting the position of the first seal support part (511) in relation to the support structure (83) surrounding the opening in order to relocate the seal (500) in an axial direction in relation to the rotating part (31, 100).
F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
F16J 15/3224 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations
F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
78.
DUAL MODE OSCILLATING FOIL PROPULSION SYSTEM AND METHOD FOR OSCILLATING AT LEAST ONE MOVABLE FOIL
The present invention concerns an oscillating foil propulsion system comprising at least one movable foil, at least one pitch mechanism connected to the at least one movable foil and configured to control a pitch motion of the at least one movable foil, at least one heave mechanism connected to the at least one movable foil and configured to control a downstroke heave motion and an upstroke heave motion of the at least one movable foil, and wherein the at least one pitch mechanism is configured to control a pitch angle of the at least one foil such that a thrust force and a drag force are obtained during a downstroke heave motion, and the at least one pitch mechanism is configured to control a pitch angle of the at least one foil such that an induced drag force during an upstroke heave motion is substantially smaller than the drag force during the downstroke heave motion. The invention further concerns a method for oscillating at least one movable foil.
B63H 5/03 - Arrangements on vessels of propulsion elements directly acting on water of paddle wheels, e.g. of stern wheels movably mounted with respect to the hull, e.g. having means to reposition paddle wheel assembly, or to retract paddle or to change paddle attitude
Slewing seal arrangement for a propulsion unit. The propulsion unit comprises a strut having an upper portion (22) with an upper end portion (100) passing through a passage (P1) formed between a first outer bottom (11) and a second inner bottom (12) in a vessel 10. The upper end portion(100) is rotatable supported (Y-Y) with a slewing bearing (300) and sealed with a slewing seal (200). An upper slewing seal (210) prevents lubrication medium leakage from the slewing bearing (300), whereby access to the upper slewing seal (210) is provided in a radial direction (R1) from the interior of the vessel (10) or from the interior of the strut (21) in order to be able to service the upper slewing seal (210). A lower slewing seal (220) is positioned at a vertical distance (H1) below the upper slewing seal (210) and prevents sea water from penetrating into the hull of the vessel (10), whereby access to the lower slewing seal (210) is provided in a radial direction (R1) from the interior of the vessel (10) or from the interior of the strut (21) in order to be able to service the lower slewing seal (220).
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
A propulsion unit is disclosed with a hollow strut having an upper portion with an upper end portion passing through a passage (P1) formed between a first outer bottom and a second inner bottom in a vessel. The upper end portion is rotatably supported with a slewing bearing and sealed with a slewing seal towards the vessel. A cooling arrangement includes a cooling air duct system, at least one fan and at least one cooling unit. The slewing seal can include an upper slewing seal and a lower slewing seal at a vertical distance (H1) from each other with a space formed between the slewing seals. The upper end portion has openings (O1) into the space between the slewing seals. A first cooling air duct is directed to this space, whereby cooling air (L1) can be circulated through the first cooling air duct (400) into the space and through the openings (O1) in the upper end portion to the interior of the strut, or return air (L2) can be circulated from the strut in an opposite direction.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
F04D 29/58 - CoolingHeatingDiminishing heat transfer
A support strut (21 ) has an upper end (21 A) rotatable supported at a bottom of a vessel and a lower end (21 B) supporting a casing (22). A first electric motor (30) within the casing (22) drives a propeller (50) via a first shaft (31 ). An annular nozzle (60) surrounds an outer perimeter of the propeller (50) and is fixedly supported on the casing (22) with a support construction (70) comprising at least three vanes (71, 72) extending in the radial direction between the outer perimeter of the casing (22) and the inner perimeter of the nozzle (60). A duct (65) for water flow is formed through the interior of the annular nozzle (60). The propeller (50) pulls the vessel in a driving direction (S1 ). The vanes (71, 72) are positioned after the propeller (50) in the driving direction (S1 ) of the vessel, whereby the vanes (71, 72) are optimized for redirecting rotational flow components of the flow produced by the propeller (50) into axial thrust.
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
A support strut (21 ) has an upper end (21 A) rotatable supported at a bottom of a vessel and a lower end (21 B) supporting a casing (22). A first electric motor (30) within the casing (22) drives a propeller (50) via a first shaft (31 ). An annular nozzle (60) surrounds an outer perimeter of the propeller (50) and is fixedly supported on the casing (22) with a support construction (70) comprising at least three vanes (71, 72) extending in the radial direction between the outer perimeter of the casing (22) and the inner perimeter of the nozzle (60). A duct (65) for water flow is formed through the interior of the annular nozzle (60). The propeller (50) pulls the vessel in a driving direction (S1 ). The vanes (71, 72) are positioned after the propeller (50) in the driving direction (S1 ) of the vessel, whereby the vanes (71, 72) are optimized for redirecting rotational flow components of the flow produced by the propeller (50) into axial thrust.
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
Slewing seal arrangement for a propulsion unit. The propulsion unit comprises a strut having an upper portion (22) with an upper end portion (100) passing through a passage (P1) formed between a first outer bottom (11) and a second inner bottom (12) in a vessel 10. The upper end portion(100) is rotatable supported (Y-Y) with a slewing bearing (300) and sealed with a slewing seal (200). An upper slewing seal (210) prevents lubrication medium leakage from the slewing bearing (300), whereby access to the upper slewing seal (210) is provided in a radial direction (R1) from the interior of the vessel (10) or from the interior of the strut (21) in order to be able to service the upper slewing seal (210). A lower slewing seal (220) is positioned at a vertical distance (H1) below the upper slewing seal (210) and prevents sea water from penetrating into the hull of the vessel (10), whereby access to the lower slewing seal (210) is provided in a radial direction (R1) from the interior of the vessel (10) or from the interior of the strut (21) in order to be able to service the lower slewing seal (220).
B63H 5/125 - Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction
A method for operating a winch and a winch having a winch drum for spooling a spoolable medium, wherein the winch drum is rotatable about a first axis, a guiding member for guiding the spoolable medium, wherein the guiding member is movable along a second axis between two end positions, and an electric drive having a first electric motor for driving the guiding member towards one of the two end positions during spooling in or spooling out of the spoolable medium. The electric drive is configured to change the driving direction of the guiding member when a monitored torque of the first electric motor, or a quantity indicative thereof, exceeds a predetermined threshold.
B66D 1/38 - Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
B66D 1/12 - Driving gear incorporating electric motors
A manual is disclosed for a frequency converter and a method, apparatus and a computer program product are disclosed for configuring a frequency converter. The manual can include a data storage storing operational configuration information of the frequency converter; wherein the configuration information is encoded to the data storage to be wirelessly readable from the data storage. The configuration information is obtained from the manual by wireless reading, and installed to the frequency converter by transmitting the obtained configuration information over a wireless connection.
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
86.
CONTACT SYSTEM FOR CAM SWITCH AND A CAM SWITCH INCLUDING THE SAME
A contact system is provided. The contact system includes a fixed contact (20); a moving contact (10) configured to be in connection with or released from the fixed contact; a contact carrier (30) having a first side and a second side and movably carrying the moving contact at the second side; a cam (40) configured to press the contact carrier from the first side; and a spring (50) configured to press the contact carrier from the second side through the moving contact, wherein the contact carrier has an arc portion at the second side to be in contact with the moving contact. A cam switch including the contact system is also provided. The contact system can lower the possibility that the moving contact is side-tumbled or offset, promote the elimination of the heat, reduce the temperature, and decrease the possibility of fusion welding with the simple structure and high performance.
A rotary switch assembly, comprising a rotary contact (150, 160) and a stationary contact, and a rotary actuator (120) for rotating the rotary contact (150, 160) such as to connect with and disconnect from the stationary contact (108, 110). The rotary actuator (120) comprises a shield (132, 140) for shielding the rotary contact (150, 160) from a side that faces the stationary contact (108, 110) when the rotary contact and the stationary contacted are being disconnected from each other.
H01H 9/32 - Insulating body insertable between contacts
H01H 1/12 - Contacts characterised by the manner in which co-operating contacts engage
H01H 19/00 - Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
A rotary switch housing (100), comprising a bottom wall (102) for mounting of the switch housing (100) to a mounting base, and side walls (104, 106) extending from the bottom wall (102), the switch housing further comprising an arc chamber (120) for extinguishing an electric arc, and a gas exhaust channel (130) for exhausting gas developed in the arc chamber (120) out of the housing (100). The gas exhaust channel (130) comprises a guiding portion (130A), which is substantially parallel to a side wall (106) of the housing (100) for leading the gases to a direction away from the bottom wall (102) of the housing (100).
A semiconductor switch arrangement comprising for each current phase a first and a second semiconductor switch (2a, 2b), a first and a second diode (3a, 3b), means for measuring voltages from input and output lines of said semiconductor switch and means for measuring current (8) arranged in series with said semiconductor switch. Additionally, the arrangement comprises a control element (14) configured to switch on the semiconductor switch arrangement at zero-voltage point and to switch off the semiconductor switches at zero-current point.
The invention relates to a method and an arrangement for determining an end-of-life of an overvoltage protection element (2) by determining (101) a predefined voltage limit based on a nominal voltage, determining (102) a measuring voltage across switch components (5) of the switch arrangement in connection with a switch-off event, and determining (103) that the overvoltage protection element (2) has reached its end-of-life when the measuring voltage is equal to or lower than the predefined voltage limit.
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H01T 1/12 - Means structurally associated with spark gap for recording operation thereof
H02H 7/24 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for spark-gap arresters
H01T 1/14 - Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a).
H01H 33/60 - Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
An exemplary propulsion arrangement is disclosed which includes two propulsion units situated side by side at the stern of a ship at opposite sides of a center line of the hull of the ship. Each propulsion unit can include a hollow support structure attached to the hull, a chamber attached to the support structure, an electric motor within the chamber, a propeller connected through a shaft to the electric motor, and a pivotably supported rudder at the rear end of the chamber. Each propulsion unit can be mounted in a toe-out position forming a horizontal tilt angle (β) of 0.5 to 6 degrees to the center line (CL) of the hull.
B63H 5/08 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
B63H 1/04 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
An electric switch arrangement(4)and a method for coupling of an electric power source (2) with a load (3). The electric switch arrangement comprises at least one electric switch unit (5) to be coupled between the electric power source and the load,at least one crowbar circuit (6) to be coupled to an output of the electric switch unit in parallel with the load, and at least one control unit (7) configured to control the operation of the electric switch unit and the crowbar circuit. The control unit is configured to control the electric switch unit to a closed state to allow a current flow through the electric switch unit and to an open state to prevent a current flow through the electric switch unit. The control unit is configured to control the crowbar circuit to a closed state to allowa current flow through the crowbar circuit and to an open state to prevent a current flow through the crowbar circuit.
A movable contact of a rotary switch, comprising a pair of contact blades (42, 44, 62, 64) for making an electrical contact to a stationary contact receivable between the contact blades (42, 44, 62, 64). The movable contact comprises a traction member (46, 66) for providing a traction force between the contact blades (42, 44, 62, 64), wherein the traction member (46, 66) is a unitary piece comprising two frame portions (46O, 46P, 66O, 66P) for framing the pair of contact blades (42, 44, 62, 64), the traction member (46, 66) further comprising a spring portion (46A, 66A, 66B, 66C) for pressing one of the contact blades (42, 62) against the other contact blade (44, 64), wherein the spring portion is arranged between the two frame portions (46O, 46P, 66O, 66P) arranged at a distance from each other.
The invention relates to a movable contact for an electric switch, comprising a first contact blade (131) and a second contact blade (132). Each of the first contact blade (131) and the second contact blade (132)comprises an assembly hole (132A), the movable contact comprising an assembly pin (138) wherein the assembly pin (138) comprises a separation portion (138A) having a diameter greater than the assembly holes (132A) of the first (131) and second (132) contact blades thereby keeping the first (131)and second (132) contact blades separated from each other, the assembly pin (138) comprising a contact blade portion (138B, 138C) on each side of the separation portion (138A) for insertion to the assembly holes (132A) of the contact blades (131, 132).
H01H 1/22 - Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches
H01H 21/00 - Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
The invention relates to an electric switch mounting arrangement comprising a housing (102) and a stationary contact (110, 112) to be mounted to an aperture (103, 203) in a wall of the housing(102). The arrangement comprises compensation means within the interior area of the aperture (203) for allowing stationary contacts of two different sizes (110, 210, 310) to be mounted to the aperture (103, 203), which compensation means comprises one or more projections (109, 209) formed on the housing (102) or the stationary contact and/or one or more recess- es (318) formed on the housing (102) or stationary contact for receiving the one or more projections.
H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches
H01H 21/00 - Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
H01H 1/22 - Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
A contact arrangement of an electric switch, comprising a first stationary contact (110), a second stationary contact (112) and a movable contact (130) for making an electrical connection between the first (110) and second (112) stationary contacts, wherein the movable contact (130) is pivotally connected to the first stationary contact (110) by a pivotal connection for allowing the movable contact (130) to pivot with respect to the first stationary contact (110) about a pivoting axis (116, 135) such that in an open position of the switch, the movable contact (130) is disconnected from the second stationary contact (112), and in a closed position of the switch, the movable contact (130) is in contact with the second stationary contact (112).The movable contact (130) and the first stationary contact (110) are arranged in a first angle with respect to each other in the open position of the switch, and in a second angle with respect to each other in the closed position of the switch, and the second angle is greater than the first angle.
H01H 21/00 - Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
H01H 1/22 - Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches
An electric switch, comprising a movable contact (108, 10, 112) and a stationary contact (104, 106) for being contacted by the movable contact(108, 110, 112), the switch further comprising one or more quenching plates (122), and a permanent magnet (132) for directing an arc, that is formed when the contacts are separated from each other, to the quenching plate (122).The quenching plate (122) has a base portion (464) and side portions (468, 470) extending away from the base portion (464), and the permanent magnet (132) is arranged such that the arc is directed towards one of the side portions (468, 470) of the quenching plate (122).
An arc quenching plate for an electric switch comprising a first mounting portion and a second mounting portion for mounting the quenching plate to respective recesses of the switch. The first mounting portion (468) and the second mounting portion (470) have a different form when compared to each other.
