The valve oriented by a pin (50) comprises a main valve body (8) which is housed in a stratification channel (7) and which exposes an axial sealing face (10) which is able to rest on a channel sealing seat (11) for insulating a stratification cavity (4) from a combustion chamber (5), the body (8) also having a peripheral centring surface (12), an axial opening face (13) which is able to rest on a valve stop on the chamber side (14), and at least one guide pin (15) which emerges from the axial opening face (13), the pin (15) being capable of sliding in an axial guide hole (17) rigidly attached to the stratification channel (7).
The valve plate having free micro-beads (1) allows a fluid (2) to flow from an upstream volume (3) to a downstream volume (4), but not in the opposite direction, and comprises a flow plate (5) penetrated by a flow port (6) terminated by a micro-bead seat (7), a permeable guide tray (9) parallel to the plate (5) being penetrated by a cylindrical guiding port (10) which houses a micro-bead (8) resting on the seat (7) to seal the port (8) or resting on a permeable micro-bead end stop (11), a spacer (12) being positioned between the tray (9) and the plate (5) while a discharge passage (13) passes through the tray (9) to allow the fluid (2) to flow when the micro-bead (8) is not resting on the seat (7).
The forced recirculation mixer (1) comprises a mixing chamber (5) the internal cavity of which forms a recirculation loop (6) circulating a homogeneous gas mixture (4) formed of a gas to be mixed (3) and a vapourisable liquid (2) introduced into the loop (6) via a gas inlet duct (7) and a liquid injection nozzle (9), respectively, gas withdrawal means (12) being capable of withdrawing the homogeneous gas mixture (4) from the mixing chamber (5) via a mixture withdrawal duct (11) while a mixing turbine (13) driven by a turbine motor (28) forces the homogeneous gas mixture (4) to circulate in the recirculation loop (6).
F02M 15/02 - Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel or fuel-air mixture with heating means, e.g. to combat ice-formation
F02M 29/02 - Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having rotary parts
F02M 29/04 - Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
The hydraulic piston with a depressurised recess (1) may translate in a cylinder (2) and comprises a fixed skirt (3), an axial compression face (4) which forms a fluid chamber (5) with the cylinder (2), and an axial working face (6) which cooperates with the transmission means (7), the piston (1) also comprises sealing means (8), a depressurised radial recess (9) opening at the surface of the fixed skirt (3), an axial decompression duct (11) arranged inside the skirt (3) and which opens near the axial working face (6), and a radial decompression duct (12) which puts the depressurised radial recess (9) in communication with the axial decompression duct (11).
F03C 1/06 - Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
F04B 53/14 - Pistons, piston-rods or piston-rod connections
The valve-controlled ignition pre-chamber with reversed combustion (1) comprises a stratification cavity (6) into which a pilot charge injector (32) opens, the cavity (6) being connected to a combustion chamber (5) of an internal combustion engine via a stratification duct (7) which forms with the latter, when opened by a stratification valve (13), a torch ignition pre-chamber while an inverter enclosure (93) containing an ignition pilot charge (27) and receiving ignition means (11) is housed in the stratification cavity (6), with which it forms a late combustion space, the enclosure (93) comprising a main ejection nozzle (94) which can transmit a pre-ignition torch in the direction of the stratification duct (7), the space swept by the torch forming an early combustion space.
The hydraulic cam injection system (100) comprises an injection valve (50) housed in a tubular injection nozzle (54), a gap being left between a valve stem (51) of the valve (50) and the inner surface of the tubular injection nozzle (54) to allow an injectable fluid (58) to flow from pressurising means (10) while a receiving piston (62) rigidly connected to the valve (50) receives, on the one hand, the pressure of the injectable fluid (58) to keep the valve (50) closed, and on the other hand, the pressure of a hydraulic fluid (60) to open the valve (50), an injection cam (67) being capable of moving the receiving piston (62) by means of a transmitting piston (69) and the hydraulic fluid (60).
F02M 47/04 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
F02B 19/02 - Engines characterised by precombustion chambers the chamber being periodically isolated from its cylinder
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02M 57/02 - Injectors structurally combined with fuel-injection pumps
F02M 61/08 - Fuel injectors not provided for in groups or having valves the valves opening in direction of fuel flow
The invention concerns an ignition insert (1) having an active prechamber, said insert comprising an insert well (72) arranged within a cylinder head (3) of an internal combustion engine (2), the well (72) housing a rotationally-indexed cylindrical insert body (70) in which are arranged: an ignition prechamber (71); an insert spark plug well (83) receiving a spark plug (12); and a radial injector port (88) aligned with a lateral injector well (73) arranged within the cylinder head (3) so as to accommodate an injector nozzle (16), the body (70) terminating in a prechamber nozzle (75) opening into a combustion chamber (5) and being held in the insert well (72) by attachment means (82) cooperating with clamping means (74).
The articulated plenum (1) forms an intake pipe (3) that that ends with sealed ball-joints (16) held by contention means (17), the plenum (1) connecting a heat source (39) to an expansion cylinder (32) and comprising a plenum intake opening (4), a plenum outlet opening (6) that receives a valve seat (9), and an actuator opening (8) that receives an intake valve actuator (50) that controls a valve (10), the latter cooperating with the valve seat (9) to close the intake pipe (3).
The magnetic valve return device (42) is provided for a valve ignition prechamber (1) which has a stratification cavity (8) which is connected by a stratification conduit (7), which a stratification valve (13) can close, to a combustion chamber (5) which houses a main charge (30), a stratification injector (8) and ignition means (11) which open in said cavity (8) in order to inject and light a pilot charge (9) in order to ignite the main charge (30) via a torch ignition prechamber which the stratification valve (13) forms with the stratification conduit (7) when it does not close said conduit, said valve (13) otherwise being kept in contact with said conduit (7) by a magnetic field which is produced by a magnetic field source (44).
The hydraulic actuator for a regeneration valve (1) comprises a high-pressure cell (5) which is supplied by a high-pressure hydraulic supply pump (2), an actuation thrustor (6) which defines a hydraulic actuator chamber (7) in order to actuate - by means of a lever (27) with a progressive arm ratio - a valve (8) which is provided with a valve return device (12), a hydraulic valve lifting slide valve (13) which is positioned between the high-pressure cell (5) and the hydraulic actuator chamber (7). A non-return lifting valve (15) which connects a low-pressure cell (4) to the hydraulic actuator chamber (7), a hydraulic valve closing slide valve (17) which is positioned between the chamber (7) and a hydraulic closing and regenerating motor (20) which recovers the energy previously input in order to open the valve (8).
The hydraulic piston (1) forms a hydraulic chamber (5) with a cylinder (4) and has a cylindrical body (6) that receives sealing means (16) and the cylindrical external surface (13) of which is housed with a little play in the cylinder (4) so as to leave an interstitial space (32), the cylindrical body (6) being traversed by a cooling and lubrication duct (7) that can be opened or closed by a cooling and lubrication valve (2) driven in translation by a piston valve actuator (22), so that when the pressure in the hydraulic chamber (5) is low, fluid (11) can pass through a flow calibrating orifice (27) from the hydraulic chamber (5) toward the interstitial space (32), and not when the pressure in the chamber (5) is high.
F03C 1/04 - Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinders in star- or fan-arrangement
F03C 1/06 - Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
F04B 1/04 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
F04B 1/12 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
The invention relates to a hydraulic piston (1) which constitutes a hydraulic chamber (5) with a cylinder (4) and has a cylindrical body (6) connected - on the side of said chamber (5) - by a valve stop-link (3) to a valve for holding a cooling and lubrication seal (2) which is crossed from side to side by a flow calibration opening (27), said valve (2) being capable of translating longitudinally over a short path relative to said body (6), either to come into contact with the latter, or to be held at a certain distance from said body (6) by the valve stop-link (3), a valve return spring (30) tending to move said valve (2) away from the cylindrical body (6).
F04B 1/04 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
F04B 1/12 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
DEVICE FOR CONTROLLING THE COMPRESSION RATE OF A VARIABLE COMPRESSION RATIO ENGINE, COMPRISING A TWO-WAY SOLENOID VALVE PROVIDED WITH A SECONDARY CIRCUIT FOR FLUID REFILLING
The invention relates to a device for controlling the compression rate of a variable compression ratio engine, comprising an actuating cylinder comprising a piston (111) defining two chambers (112, 113) for receiving a pressure fluid, a pressure accumulator (33) supplying the pressure fluid, a first fluid circuit (31A, 32A) connecting the upper chamber (113) to the accumulator and comprising a first valve assembly (2A) for controlling the flow of the fluid in said first fluid circuit, and a second fluid circuit (31B, 32B) connecting the lower chamber (112) to the accumulator (33) and comprising a second valve assembly (2B) for controlling the flow of a fluid in said second fluid circuit, characterised in that at least one of the fluid circuits comprises a bypass conduit (50) arranged so as to connect one of the chambers (112, 113) to the accumulator (33), said bypass conduit comprising a non-return valve (51).
F16K 11/16 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
14.
PRESSURE DEVICE FOR EXERTING A HOLDING FORCE ON A TRANSMISSION DEVICE AND ENGINE PROVIDED WITH SUCH A DEVICE
The invention relates to a pressure device (10) for exerting a holding force on a transmission device likely to move transversely in an engine block during an engine cycle, the pressure device (10) comprising a piston (21) moving in a chamber (22) filled with a fluid and defined by a jacket (23), a check valve between the chamber and a fluid source, the fluid having a first pressure and the check valve making it possible to maintain the fluid of the chamber at a pressure no lower than the first pressure, and at least one calibrated leakage opening for the fluid retained in the chamber. According to the invention, the calibrated leakage opening is provided with a check valve calibrated to a second pressure higher than the first pressure. The invention likewise relates to an engine provided with such a pressure device.
F02B 75/04 - Engines with variable distances between pistons at top dead-centre positions and cylinder heads
15.
DEVICE FOR CONTROLLING THE COMPRESSION RATIO OF AN ENGINE WITH VARIABLE COMPRESSION RATIO COMPRISING A TWO-WAY SOLENOID VALVE HAVING CONTROLLED PERMANENT LEAKAGE
The invention relates to a device for controlling the compression ratio of an engine with variable compression ratio, comprising an actuating cylinder comprising a piston (111) defining two chambers (112, 113) intended for receiving a pressurised fluid supplied by a pressure accumulator (33), a first fluid circuit (31A, 32A) connecting the upper chamber to the accumulator and comprising a first valve assembly (2A), and a second fluid circuit (31B, 32B) connecting the lower chamber to the accumulator (33) and comprising a second valve assembly (2B), characterised in that the first and/or second fluid circuit(s) at least include a calibrated fluid leakage opening.
F16K 11/16 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
The regenerative cooling system (100) is provided for a regenerative heat engine (1) and comprises a cooling chamber (79) which surrounds a gas pressure reducer (78) while leaving a gas flow space (80) between the chamber (79) and the pressure reducer (78); a working gas (81) that is expelled from the gas pressure reducer (78) flows within said space (80) before returning to a regenerating heat exchanger (5) for cooling, a large part of the heat of said gas (81) being reintroduced into the thermodynamic cycle of the regenerating heat engine (1).
The invention relates to an articulated coupling (1) provided for a piston sealing device (2) for a piston (3) that includes a stationary skirt (7) and a sliding skirt (12) connected to one another by a mechanical link between skirts (13) in order for an extensible continuous segment (15) to be axially compressed by a sliding skirt spring (20), said coupling (1) replacing the stationary skirt (7) with a ball-joint skirt (22) as well as providing a frusto-spherical piston ending (21) which engages with a frusto-spherical skirt seat (24) arranged on the ball-joint skirt (22) while articulating means (40) are inserted between the mechanical link between skirts (13) and the piston (3) and/or between said link (13) and the sliding skirt (12).
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups or
F04B 53/02 - Packing the free space between cylinders and pistons
F04B 53/14 - Pistons, piston-rods or piston-rod connections
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
F16J 9/00 - Piston-rings, seats thereforRing sealings of similar construction in general
The valve-controlled ignition pre-chamber (1) is intended for an internal combustion engine (2) which has a combustion chamber (5) in which a main charge (30) more less diluted with a neutral gas is ignited, said prechamber (1) comprising a stratification cavity (6) into which ignition means (11) open and into which a stratification injector (8) can inject a pressurized readily-inflammable pilot charge (9), a stratification valve (13) being able to close off the stratification duct (7) in full or in part, notably under the effect of the pressure of the gases obtaining in the combustion chamber (11).
F02B 19/02 - Engines characterised by precombustion chambers the chamber being periodically isolated from its cylinder
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02B 19/12 - Engines characterised by precombustion chambers with positive ignition
F02P 13/00 - Sparking plugs structurally combined with other parts of internal-combustion engines
H01T 13/24 - Sparking plugs characterised by features of the electrodes or insulation having movable electrodes
H01T 13/54 - Sparking plugs having electrodes arranged in a partly-enclosed ignition chamber
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
The invention relates to a synchronized free-wheel roller (1) comprising a central body (2) having an outer cylindrical rolling surface (3) intended to roll between two raceways bordered by synchronizer racks or synchronizer rings, each end (9) of the body (2) having a smooth shaft (10) about which a synchronizer pinion (8) can rotate freely, said shaft (10) including axial pinion-stop means (12) that prevent the pinion (8) from leaving the shaft (10), while axial roller-guiding means (13) bear on the central body (2) and on the raceways in order to maintain the outer cylindrical rolling surface (3) approximately centred on the raceways.
The spark plug with electrode-shuttle (1) is intended for an internal combustion engine which has a combustion chamber (11) in which a main charge diluted with a neutral gas is ignited (12), said spark plug (1) including a stratification cavity (15) into which a central electrode (6) projects and in which a stratification injector (17) can inject, under pressure, a pilot charge consisting of an easily flammable oxidiser-fuel AF mixture, said cavity (15) being connected to the combustion chamber (11) by a stratification duct (16) while an electrode-shuttle (20) is located between the central electrode (6) and an earth electrode (7) and can move in translation in the stratification duct (16).
The invention relates to a bearing guide device of a combustion piston for a variable compression ratio engine. The movement of the combustion piston from a top dead centre to a bottom dead centre drives the movement of a synchronised roller made up of a cylindrical body and a pinion (44) from a first position to a second position relative to first and second racks (46, 37). According to the invention, the first and/or second racks (46, 37) have a different modulus than the modulus of the pinion (44) so that the flanks of the teeth of the pinion (44) engage with the flanks of the teeth of the first and second racks (46, 37) only when the pinion (44) is in the first or second position.
F02B 75/04 - Engines with variable distances between pistons at top dead-centre positions and cylinder heads
F01B 9/04 - Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups with rotary main shaft other than crankshaft
22.
DUAL-ACTING EXPANSION CYLINDER WITH ADAPTIVE SUPPORT
The dual-acting expansion cylinder (1) comprises a cylinder barrel (71) which collaborates with a dual-acting expansion piston (2) connected to transmission means (3) housed in a transmission casing (8), while a hollowed pillar (13), the ends of which are articulated, has passing through it a rod tunnel and bears against the said casing (8) so as to support the said barrel (71), a tension bolt (17), likewise articulated, passing through the said tunnel to clamp the cylinder barrel (71) to the hollowed-out pillar (13) whereas lower cylinder centring means (20) and upper cylinder centring means (21) secured to the transmission casing (8) notably via a centring portal (22) leave the cylinder barrel (71) free to move parallel to its longitudinal axis but not in the plane perpendicular to the said axis.
The invention relates to a phase shifter (300) of a valve for a hydraulic engine/pump, wherein said phase shifter is provided for a hydraulic engine/pump (1) that includes an engine/pump frame (2) and an engine/pump central rotor (3) to which an angular inlet/outlet manifold (44) for an inner pipe and an angular inlet/outlet manifold (89) for an outer pipe are connected via an inlet/outlet valve (43). Said phase shifter includes a phase shift actuator (301) that engages with the engine/pump frame (2) so as to rotate the inlet/outlet valve (43) about the longitudinal axis thereof and over a predetermined angular range.
F03C 1/16 - Speed controlling, equalising, or cushioning
F03C 1/047 - Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinders in star- or fan-arrangement the pistons co-operating with an actuated element at the outer ends of the cylinders
F03C 1/26 - Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
F04B 1/047 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
The invention relates to a sealing device with a fluid cushion (100) for a piston (101) moving in a cylinder (102) and defining with the latter a chamber to be sealed (104), which comprises a perforated continuous ring (105) with a calibrated opening (111) passing through the radial thickness thereof and sealingly inserted in a ring groove (109) arranged in the piston (101) so as to define with said groove (109) a pressure-distribution chamber (119) connected to a pressurised fluid source (112) while an axially blind counter-pressure recess (115) is formed in an outer cylindrical surface of the ring (107) which faces the cylinder (102) and which includes the perforated continuous ring (105), the calibrated opening (111) leading into said recess (115).
F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid
F02F 11/00 - Arrangements of sealings in combustion engines
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 53/14 - Pistons, piston-rods or piston-rod connections
F16J 9/08 - Piston-rings, seats thereforRing sealings of similar construction in general with expansion obtained by pressure of the medium
F16J 15/46 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
F16J 15/56 - Other sealings for reciprocating rods
25.
TRANSFER - EXPANSION - REGENERATION COMBUSTION ENGINE
The transfer - expansion - regeneration combustion engine (1) comprises a compressor (2) which delivers gases into a high-pressure regeneration pipe (6) of a regeneration heat exchanger (5) from which pipe the gases emerge preheated via a regenerator high-pressure outlet pipe (9) which comprises a heat source (12) which superheats said gases, the latter then being transferred by an intake metering valve (24) operated by a metering valve actuator (25) to a transfer - expansion chamber (16) notably formed by an expansion cylinder (13) and an expansion piston (15), said gases re-emerging from said chamber (16) having been expanded via an expanded-gases exhaust pipe (26) and via an exhaust valve (31) operated by an exhaust-valve actuator (32) before being cooled in a regeneration low-pressure pipe (7) that the regeneration heat exchanger (5) comprises.
ELECTROMAGNETIC VALVE COMPRISING TWO INDEPENDENT AND SEALED FLUID CIRCUITS CONTROLLED BY A SINGLE ELECTROMAGNETIC ACTUATOR, AND MOTOR COMPRISING SUCH AN ELECTROMAGNETIC VALVE
The invention relates to an electromagnetic valve (1) comprising two valve assemblies (2A, 2B) which each control the flow of a fluid, each assembly comprising a valve body having a longitudinal channel with an axis AA communicating with at least two fluid conduits (31A, 32A, 31B, 32B) and an arrangement forming a valve comprising a piston mounted such that it moves inside the channel between a position wherein the fluid conduits (31A, 32A, 31B, 32B) are open and a position wherein the fluid conduits (31A, 32A, 31B, 32B) are closed, each in relation to the other, said piston comprising a magnetisable end portion (40A, 40B), the electromagnetic valve comprising a single electromagnetic actuator (5) inserted between the two valve assemblies.
F16K 11/16 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
27.
TRANSMISSION DEVICE OF AN ENGINE, PARTICULARLY FOR AN ENGINE WITH VARIABLE COMPRESSION RATE AND/OR VARIABLE DISPLACEMENT
The invention relates to a transmission device (1), particularly for an engine with variable compression rate and/or variable displacement. Said device includes, in a cylinder housing: - a combustion piston (2), capable of moving in a combustion cylinder of the engine and secured to a transmission member (3); - a gear (5) engaging with a first rack of the transmission member (3) and proving transmission of the movement between the combustion piston (2) and a crankshaft of the engine; - a connecting rod engaging, at a first end, with the gear (5) and, at a second end, with the crankshaft; and - a control member (7) engaging with the gear (5) and secured to a control piston (12). The transmission device (1) is characterized in that the combustion piston (2) and the transmission member (3) are slidably linked with the cylinder housing (100) in a main direction.
The invention concerns a device for compensating for the operating clearances of an engine comprising a transmission device (1) likely to move transversely in an engine block (100) during an engine cycle; a pressing device (10) exerting a holding force on the transmission device (1). According to the invention, the holding force is adjusted to the instantaneous speed of transverse movement of the transmission device (1) in the engine block (100).
F02B 75/04 - Engines with variable distances between pistons at top dead-centre positions and cylinder heads
F02B 75/32 - Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
F01B 9/02 - Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups with crankshaft
F01B 9/04 - Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups with rotary main shaft other than crankshaft
The invention relates to a high-pressure rotary seal-plug assembly with an expandable continuous ring (1) including a male hydraulic connector (2) rotating in a female hydraulic connector (4), said connectors (2, 4) including an inner duct leading into a communication chamber (10) while a non-expandable sealing ring (42) is mounted freely around the male hydraulic connector (2) and is housed with little play in the female hydraulic connector (4) while a non-expandable ring spring (20) biases said sealing ring (42) towards a shoulder providing annular support for a ring (14) secured to the male hydraulic connector (2) and to compress axially an expandable continuous ring (13) inserted axially between the non-expandable sealing ring (42) and the shoulder providing annular support for the ring (14) and comprising an inner cylindrical surface of the expandable ring (15) placed in communication with the communication chamber (10).
F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe
F16L 17/02 - Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
30.
END-OF-STROKE EXPANDER FOR PISTON-TYPE PRESSURE CONVERTER
The end-of-stroke expander (1) for a piston-type pressure converter (2) of which the emitter cylinder (3) and the receiver cylinder (4) respectively define an emitter chamber (9) and a receiver chamber (10), comprises an expansion emitter cylinder (12) which communicates with the receiver chamber (10) and in which cylinder there may move an expansion emitter drive piston (14) mechanically connected by a progressive lever-effect transmission (11) to an expansion receiver pump piston (15) which can move in an expansion receiver cylinder (13), said transmission (11) being intended so that when the expansion emitter drive piston (14) is at top dead centre, the expansion receiver pump piston (15) is at bottom dead centre, and vice versa, whereas an expansion unblocking actuator (30) can set said transmission (11) in motion.
F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids
F04B 9/04 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
F04B 9/107 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring
A sealing ring for a hydraulic pump distributor (i) for a hydraulic distributor (2) of a hydraulic pump (44), comprising a continuous sealing ring (11) housed in a ring groove (16) arranged in a pump stator (3) of which the inlet/discharge ports (7) are each aligned with a distribution recess (21) passing through said ring (11) from one side to the other in the direction of the thickness of same, the latter comprising a circumferential contact boss (14) that has a line of circumferential contact (15) that can come into contact with a low-pressure sealing surface on the rotor side (13), said ring (11) also comprising a compression/decompression track (24), a ring sealing lip (39) that provides a seal between said ring (11) and the ring groove (16), and rotation-stop means (36).
F04B 1/0465 - Distribution members, e.g. valves plate-like
F04B 1/1071 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
F04B 1/2021 - Details or component parts characterised by the contact area between cylinder barrel and valve plate
F04B 1/303 - Control of machines or pumps with rotary cylinder blocks by turning the valve plate
F04B 1/047 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
32.
REVERSIBLE HYDRAULIC PRESSURE CONVERTER WITH TUBULAR VALVES
The reversible hydraulic pressure converter with tubular valves (1) comprises a medium-pressure stage (44) consisting of a medium-pressure cylinder (2) and a medium-pressure double-acting piston (3), the position of which is transmitted to a management computer of the converter (19) by a piston position sensor (14), said cylinder (2) and said piston (3) forming two medium-pressure chambers (5) that can be brought into connection with a medium-pressure inlet/outlet circuit (15) by at least one tubular valve (12), said converter (1) also comprising two high-pressure cylinders (9) each engaging with a high-pressure piston (8) having a smaller diameter and defining two high-pressure chambers (11) that can be brought into connection with a high-pressure inlet/outlet circuit (18) by at least one tubular valve (12), the various tubular valves (12) each cooperating with a separate valve actuator (13).
F15B 1/02 - Installations or systems with accumulators
F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids
F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
The sealing device (1) for a piston (2) the fixed skirt (5) of which moves in a cylinder (8), comprises a sliding skirt (6) through which there passes axially a pressure-transmitting duct (10) and which is connected to the fixed skirt (5) by an inter-skirt mechanical connection (7) while an extendable continuous piston ring (9) is interposed in a sealed manner between said skirts (5, 6) and can come into contact with the cylinder (8) when the piston-ring internal cylindrical face (12) thereof is subjected to the pressure of a fluid (36) via the pressure-transmitting duct (10), a sliding-skirt spring (16) tending to bring said skirts (5, 6) together and to compress the extendable continuous piston ring (9) axially between said skirts (5, 6).
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 37/12 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for special use to obtain high pressure
F04B 53/14 - Pistons, piston-rods or piston-rod connections
The invention concerns an hydraulic motor pump (1) having a fixed or variable cylinder capacity and comprising a central motor pump rotor (3) in which is disposed an hydraulic cylinder (14), the rotor (3) being in sealed contact with an input-output distributor (43) connecting the cylinder (14) to a motor pump frame (2) whilst an hydraulic piston (13) moves in the cylinder (14) in order to push, by means of an hydraulic piston guided tappet (18), a tangential arm (22) articulated in the central rotor (3) and a tangential arm anti-friction roller (28), on a peripheral motor pump rotor (29) which is synchronized for rotation with the central motor pump rotor (3).
F04B 1/047 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
B60K 17/10 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
F03C 1/047 - Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinders in star- or fan-arrangement the pistons co-operating with an actuated element at the outer ends of the cylinders
F03C 1/26 - Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
F16H 39/00 - Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
F16H 39/04 - Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
F16H 39/40 - Hydraulic differential gearings, e.g. having a rotary input housing with interconnected liquid chambers for both outputs
F16H 61/40 - Control of exclusively fluid gearing hydrostatic
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