A cylinder block for a fluid pump includes a cylindrical body having a hub bore and a plurality of cylinder bores arranged about the hub bore, a hub insert disposed in the hub bore, and an anti-rotation body configured to prevent rotation of the hub insert relative to the cylindrical body. The cylindrical body and the hub insert together define a channel in which the anti-rotation body is inserted.
A battery lock out system for a work machine, having a manual service disconnect configured to be attached to a power module of a battery pack for providing electrical power to the work machine, a service plug configured to be attached to the power module once the manual service disconnect has been removed from the power module, and a locking bracket sliding between a first position and a second position, the locking bracket including a first tab configured to lock a cover of the battery pack while the locking bracket is in the first position, and a second tab configured to lock the service plug onto the power module while the locking bracket is in the second position and the manual service disconnect has been replaced with the service plug.
H01M 50/264 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/258 - Modular batteriesCasings provided with means for assembling
3.
Worksite Management System and Method for a Mobile Machine
A worksite management system directs one or more mobile machines to enhance the compaction of the terrain surface about a worksite. One or more local topography detectors that may be located on a non-compactor mobile machine measures the state of compaction of the local topography proximate to the mobile machine. An electronic controller that may be onboard the mobile machine detects if the detected state of compaction corresponds to a first topography area associated with a greater state of compaction and, if so, directs the mobile machine to a second topography area associated with a lesser state of compaction.
In a traditional bearing cap, the temperature of the oil-wetted surface that defines the oil sump may experience high temperatures, which can result in oil degradation, oil varnish, and coking. Accordingly, a bearing cap is disclosed that reduces the temperatures experienced by the oil-wetted surface. In particular, the bearing cap may comprise one or more air insulation cavities, between the surface that is exposed to heated air and the oil-wetted surface that defines the oil sump, to provide a thermal barrier between the two surfaces.
A liquid-dispensing vehicle, such as a water truck (120), may deliver water from a tank (122) through spray heads (124) to combat dust at a worksite (102) during a mission. Operating in an environment with potentially low-bandwidth and intermittent communications, the vehicle periodically transmits timestamped data (201) relating to a tank level, truck movement, and a binary status of the spray heads (124) to an external computing system (162). The computing system (162) virtually reconstructs the operation of the truck and treatment of the worksite (102) by building timelines and coverage maps (260) from the timestamped data (201). In generating a smoothed water-level timeline (404), the system (100) identifies refilling sections (244), stable sections (246), and draining sections (248) of the tank (122) from the timestamped data (201) and filters noisy water readings during the draining sections (248). An activity timeline (252) identifies various truck activities during the watering mission, and a coverage map (262) builds a two-dimensional rendering of water treatment on the worksite (102) based on geometric patterns of the active spray heads (124), all of which may be used to evaluate the mission or to control future operation of the vehicle.
Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and/or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.
A removable camera mounting system for a mobile industrial machine is disclosed. The removable camera mounting system includes a camera housing having a plurality of walls. A camera unit is mounted within the camera housing. A light unit is also mounted within the camera housing. An exterior of one of the plurality of walls of the camera housing includes one or more magnets.
Typically, the battery swapping process of a battery-powered mobile equipment involves driving or otherwise moving and transporting the battery pack of the mobile equipment at the recharging station, and support mobile equipment may not be properly equipped to perform an efficient and safe battery swap. The availability of mobile equipment designed to replace battery packs on-site are limited and may not be suitable for most battery pack assemblies. Disclosed embodiments eliminate or reduce the risk during the battery swapping and transport of battery packs to recharging stations. In particular, disclosed embodiments comprise a battery-swapping support system that enables battery packs to be quickly swapped, potentially in the field. The battery-swapping support system may be mounted on a mobile equipment that can transport battery packs to and from other mobile equipment in the field.
A liquid-dispensing vehicle, such as a water truck, may deliver water from a tank through spray heads to combat dust at a worksite during a mission. Operating in an environment with potentially low-bandwidth and intermittent communications, the vehicle periodically transmits timestamped data relating to a tank level, truck movement, and a binary status of the spray heads to an external computing system. The computing system virtually reconstructs the operation of the truck and treatment of the worksite by building timelines and coverage maps from the timestamped data. In generating a smoothed water-level timeline, the system identifies refilling sections, stable sections, and draining sections of the tank from the timestamped data and filters noisy water readings during the draining sections. An activity timeline identifies various truck activities during the watering mission, and a coverage map builds a two-dimensional rendering of water treatment on the worksite based on geometric patterns of the active spray heads, all of which may be used to evaluate the mission or to control future operation of the vehicle.
A method of configuring a microgrid including: receiving configuration inputs from an operator, the configuration inputs including an intended bus structure, a plurality of energy resources data, and energy resources priorities; classifying assets and asset groups based on the plurality of energy resources data; and generating a microgrid configuration based on the one or more configuration inputs, the microgrid configuration providing for automatic operation of the microgrid.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
To put new thought to a control method, and to obtain good operability, upon providing a control circuit for option hydraulic actuator in a hydraulic circuit for a working machine. There is provided an option merging oil passage that allows the discharge oil of the first, second hydraulic pumps to be merged thereinto, and the option merging oil passage is provided with an option control valve and a compensator valve, and is configured such that a variable relief valve is connected to a signal pressure introduction oil passage connected to the compensator valve, a supply pressure to an option hydraulic actuator can be variably controlled by changing a relief setting pressure of the variable relief valve; on the other hand, distributed flow rate computation with respect to the other hydraulic actuators, opening area control of the option control valve, the other hydraulic actuators control valves, and discharge pressure control of the first, second hydraulic pumps are optimized.
A removable camera mounting system (201) for a mobile industrial machine (101) is disclosed. The removable camera mounting system (201) includes a camera housing (123) having a plurality of walls (209-215). A camera unit (125) is mounted within the camera housing (123). A light unit (127) is also mounted within the camera housing (123). An exterior of one of the plurality of walls (209-215) of the camera housing (123) includes one or more magnets.
G03B 15/05 - Combinations of cameras with electronic flash apparatusElectronic flash units
B60R 1/23 - Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
A cylinder block (200) for a fluid pump (100) includes a cylindrical body (210) having a hub bore (260) and a plurality of cylinder bores (230) arranged about the hub bore (260), a hub insert (302) disposed in the hub bore (260), and an anti-rotation body (400) configured to prevent rotation of the hub insert (302) relative to the cylindrical body (210). The cylindrical body (210) and the hub insert (302) together define a channel (380) in which the anti-rotation body (400) is inserted.
In a traditional bearing cap, the temperature of the oil-wetted surface that defines the oil sump may experience high temperatures, which can result in oil degradation, oil varnish, and coking. Accordingly, a bearing cap (300) is disclosed that reduces the temperatures experienced by the oil-wetted surface (420). In particular, the bearing cap (300) may comprise one or more air insulation cavities (430), between the surface (410) that is exposed to heated air and the oil-wetted surface (420) that defines the oil sump (425), to provide a thermal barrier between the two surfaces.
Operating an engine includes opening and closing exhaust valves in an engine braking timing pattern, charging a first cylinder with air fed directly from an intake manifold, and releasing the directly fed air in a first braking event. Operating the engine further includes charging the first cylinder with air fed via a flow-through path through a second cylinder operating as an air conduit, and releasing the air fed through the flow-through path and pressurized to brake the engine in a second braking event. Related apparatus and valve lift profiles are also disclosed.
F02D 13/04 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
16.
Exhaust assembly temperature regulation for shutdown
This disclosure describes an exhaust assembly that includes an exhaust tube and a coolant passage. The exhaust tube is oriented about an axis and an exhaust gas is configured to flow through the exhaust tube in a direction away from an end of the exhaust tube. The coolant passage is oriented about the axis radially outward of the exhaust tube, the coolant passage having an inner shell and an outer shell. The exhaust assembly further includes an expansion reservoir positioned vertically (relative to a gravitational reference) above the coolant passage. The expansion reservoir and coolant passage are fluidly coupled by a conduit having a first diameter. The expansion reservoir is coupled with a coolant reservoir by a second conduit having a diameter less than the first diameter. Vapor after a hot shutdown travels up the first conduit and is replaced by coolant flowing down the first conduit.
F01N 13/10 - Other arrangements or adaptations of exhaust conduits of exhaust manifolds
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
F01P 3/20 - Cooling circuits not specific to a single part of engine or machine
F01P 11/02 - Liquid-coolant overflow, venting, or draining devices
F02B 39/00 - Component parts, details, or accessories relating to driven charging or scavenging pumps, not provided for in groups
F02B 39/14 - Lubrication of pumpsSafety measures therefor
An electric powertrain for a machine includes an electric power source. The powertrain further includes an implement pump for powering a work implement and an implement pump electric motor. An electric traction motor is operably coupled to a traction device. An electronic controller stores a plurality of rimpull torque curves. The electronic controller is configured to determine if the electric power source is in a power limited condition and upon determining that the electric power source is in a power limited condition act to derate a rimpull torque of the traction device from a first rimpull torque curve of the plurality of rimpull torque curves to a lower second rimpull torque curve of the plurality of rimpull torque curves, wherein the selection of the second rimpull torque curve is based on a power usage by the implement pump electric motor.
A dual fuel engine system includes an engine, and a fuel system including a pressurized fuel reservoir, a first fuel pump, and a plurality of second fuel pumps each having an actuating fluid inlet fluidly connected to at least one of the first fuel pump or the pressurized fuel reservoir. The plurality of second fuel pumps may intensify or de-intensify a pressure of a second fuel relative to a pressure of the first fuel used to actuate the second fuel pumps so as to obtain an increased flow rate of the second fuel. Related apparatus and methodology is also disclosed.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
Apparatuses, systems and methods are disclosed including an internal combustion engine. The internal combustion engine can include an engine block and a cylinder head. The engine block can define an inlet passage and a plurality of cylinder jackets in fluid communication in series. The engine block can include one or more passages from each of the plurality of cylinder jackets. The cylinder head can be mounted to the engine block and can include an outlet passage and a plurality of lower cylinder head jackets. The one or more passages can be in fluid communication with respective ones the plurality of lower cylinder head jackets. A diameter of the one or more passages in fluid communication with one of the plurality of cylinder jackets differs from diameters of the one or more passages in fluid communication with others of the plurality of cylinder jackets.
A system, for returning fluid from one or more hydraulic devices to a fluid tank of a work machine, includes a manifold and a mount. The manifold is configured to be fixedly mounted to the fluid tank. The manifold defines an inner volume for receiving a flow of the fluid returning from the one or more hydraulic devices. The mount is configured to be fixedly mounted to each of the fluid tank and the manifold. The mount defines one or more passageways configured to establish a fluid connection between the inner volume of the manifold, a filter of the work machine, and an internal volume of the fluid tank.
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
21.
FILTER ASSEMBLY AND FILTER COMPONENT HAVING DETENT CLIPS AND POSTS FOR CLICK-LOCK ENGAGEMENT
A filter assembly for a fluid system such as an oil system for an engine includes a first filter component having a first threaded peripheral surface and a plurality of posts projecting from a radially extending surface. The filter assembly further includes a second filter component including a second threaded peripheral surface and a plurality of detent clips matched to the plurality of posts in number and in angular spacing around the center axis. At least one of, the plurality of posts or the plurality of detent clips, is deformable in a radial direction via relative rotation of the detent clips together about the center axis to click-lock engage the detent clips with the posts.
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
B01D 29/11 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups Auxiliary devices for filtrationFilter housing constructions
F01M 11/03 - Mounting or connecting of lubricant purifying means relative to the machine or engineDetails of lubricant purifying means
22.
Additional Cooling Pack with Fans to Handle and Peak Shave Fuel Cell Transients and High Ambient Temperatures
A work machine cooling system for cooling primary power source cooling fluid for a primary power source may include a primary power source cooling unit and a second power source cooling unit fluidly connected so that primary power source cooling fluid flows from the primary power source through the primary and secondary power source cooling units is discharged back to the primary power source. The work machine cooling system may further include a primary cooling fan disposed proximate the primary fuel cell cooling unit to discharge airflow onto the primary fuel cell cooling unit, and a secondary cooling fan disposed proximate the secondary fuel cell cooling unit to discharge airflow onto the secondary fuel cell cooling unit. The secondary cooling fan may be turned off until the primary cooling fluid temperature is greater than a transient event threshold temperature indicating the occurrence of a transient thermal event.
B60L 58/33 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
E02F 9/08 - SuperstructuresSupports for superstructures
H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
A filter assembly for a fluid system such as an oil system for an engine includes a first filter component having a first threaded peripheral surface and a plurality of posts projecting from a radially extending surface. The filter assembly further includes a second filter component including a second threaded peripheral surface and a plurality of detent clips matched to the plurality of posts in number and in angular spacing around the center axis. At least one of, the plurality of posts or the plurality of detent clips, is deformable in a radial direction via relative rotation of the detent clips together about the center axis to click-lock engage the detent clips with the posts.
A sensor and housing assembly may include a sensor configured to detect a quantity of a gas in engine exhaust, and a housing including an inner upstream wall, a first inner side wall having a sensor opening for the sensor, an inner downstream wall opposite to the inner upstream wall, and a second inner side wall opposite to the first inner side wall, and having a housing inlet and a housing outlet that is opposite to the sensor opening in the first inner side wall. The sensor is positioned within the sensor opening on the first inner side wall, and a tip of the sensor protrudes through the housing outlet.
Even if the fuel pressure to a torch for igniting an air-fuel mixture in a gas turbine engine is set to an ideal value, the actual fuel pressure supplied to the torch may differ due to modifications, drift, changes in ambient temperature or pressure, fuel composition, and/or the like. This may result in failure of the gas turbine engine to ignite. Accordingly, disclosed embodiments introduce a torch active pressure control (TAPC) system into the flow path of fuel to the torch. The TAPC system is controlled to modulate the fuel pressure of the fuel supplied to the torch, according to a modulation profile. The modulation profile may traverse a range of fuel pressures in each of one or a plurality of sinusoidal, V-shaped, stepped, or other-shaped cycles, to increase the probability that the ideal fuel pressure, and therefore, flame height, is achieved, thereby increasing the likelihood of a successful lightoff.
A controller may monitor sensor data collected by one or more sensors of a machine while the machine is operating at a worksite. The controller may determine whether the sensor data is indicative of the machine operating in an unsafe condition at a location of the machine at the worksite. The controller may cause, based on a determination that the sensor data is indicative of the machine operating in the unsafe condition, at least one of: storing of the sensor data relating to the machine operating in the unsafe condition at least until the sensor data relating to the machine operating in the unsafe condition is offboarded from the machine, or transmission of the sensor data relating to the machine operating in the unsafe condition offboard the machine.
The excavator (10) comprises at electrical power system (40) with at least one motor (71) and battery mounts (63). A machine control system (90) is configured to determine the quantity of batteries (45) mounted to the battery mounts (63). The excavator (10) is operated within normal performance limits if the quantity of batteries (45) mounted to the battery mounts (63) is at least a normal battery quantity threshold. The excavator (10) is operated within adjusted performance limits if the quantity of batteries (45) mounted to the battery mounts (63) is less than the normal battery quantity threshold.
E02F 3/32 - DredgersSoil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam working downwardly and towards the machine, e.g. with backhoes
An excavator (10) comprises an electrical power system (40) with at least one motor (71) for receiving power from at least one battery (45) mounted to at least one battery mount (63). The excavator (10) comprises at least one counterweight pack (80) mounted to the at least one battery mount (63), in place of at least one battery (45), so as to at least partially counterbalance the arm arrangement (14) of the excavator (10).
Integrated fuel cell cooling systems and methods can comprise or implement a first coolant circuit to process a first coolant; a second coolant circuit to process a second coolant, the second coolant being a dielectric fluid; a liquid-liquid heat exchanger operatively coupled to the first coolant circuit and the second coolant circuit; and a proton exchange membrane (PEM) fuel cell. The first coolant circuit and the second coolant circuit can be fluidly separated from each other.
Typically, the recharging process for a battery-powered mobile equipment involves driving or otherwise moving the mobile equipment to the location of a stationary recharging station, and recharging the battery of the mobile equipment at the recharging station. During the time of travel and recharging, the mobile equipment is not performing a task in the field. Disclosed embodiments eliminate or reduce the need to transport the mobile equipment to recharging stations. In particular, disclosed embodiments comprise a frame that enables battery packs to be quickly swapped, potentially in the field. Embodiments may comprise movement elements to facilitate swapping and/or a mobile battery-swapping system that can transport battery packs to and from the mobile equipment in the field.
A gasket includes a rectangle formed from a sheet of material for placement over a pole of a stator, the rectangle including: a first side opposite a third side of equal length; a second side opposite a fourth side of equal length; pluralities of inner tabs disposed on the inner edges of the first and third sides, each inner tab being bent downward at a first angle to a plane containing the rectangle; outer tabs disposed on outer edges of the first and third sides and bent downward at a second angle; an inner tab disposed on the inner edge of the fourth side and angled upward from the plane containing the rectangle at a third angle; and two second protrusions disposed at opposite ends of an outer edge of the second side and two fourth protrusions at opposite ends of an outer edge of the fourth side.
PROBLEM: To avoid the pressure of the actuator oil passage from becoming higher or equal to the upper limit pressure that is set depending on an individual option hydraulic actuator, during non-operation of an option operation lever, even if the actuator oil passage connected to the option hydraulic actuator is not provided with a variable relief valve. SOLUTION: It is configured to release the pressure of the actuator oil passage into the oil tank via the option control valve, the load pressure introducing oil passage, the variable relief valve, by switching the option control valve to load pressure relief positions at which the pressure of the actuator oil passage is allowed to flow into the load pressure introducing oil passage, when the pressure of the actuator oil passages exceeds the upper limit pressure during non-operation of the option operation lever; as well as by controlling the relief setting pressure of the variable relief valve connected to the load pressure introducing oil passage so as to be less than or equal to the upper limit pressure.
Integrated fuel cell cooling systems and methods can comprise or implement a first coolant circuit to process a first coolant; a second coolant circuit to process a second coolant, the second coolant being a dielectric fluid; a liquid-liquid heat exchanger operatively coupled to the first coolant circuit and the second coolant circuit; and a proton exchange membrane (PEM) fuel cell. The first coolant circuit and the second coolant circuit can be fluidly separated from each other.
The present disclosure relates to a track link assembly, a track system (110) and a construction machine (100) comprising the track link assembly. The track link assembly comprises a left track link (1), a right track link (2), two bushings (3), and a pin shaft (4) connecting the left track link (1) and the right track link (2). The left track link (1) has a first left hole(ll) and a second left hole (13). The right track link (2) has a first right hole (21) and a second right hole (23). The two bushings (3) are respectively installed in the second left hole (13) and the second right hole (23). The pin shaft (4) comprises a middle section (41) as well as first and second sections (42,43) located at opposite sides of the middle section (41). The first and second sections (42,43) are inserted through the first left hole (11) and the first right hole (21) respectively in an interference fit manner, and are intended to be engaged with two bushings (13) of another track link assembly in a clearance fit manner. The middle section (41) has a protrusion (411) configured to engage with a driving wheel of a construction machine. In the track link assembly of the present disclosure, the protrusion (411) is used to directly engaged with the driving wheel of the construction machine, thus decreasing manufacturing steps of the track system and even of the construction machine, and thereby reducing the manufacturing cost.
A gasket (100) for placement over a stator pole (406) includes a rectangle of material. The rectangle includes: a first side (101) opposite a third side (103) of equal length; a second side (102) opposite a fourth side (104) of equal length; pluralities of inner tabs (111, 113) on the inner edges of the first and third sides (101, 103); outer tabs (121, 123) disposed on outer edges of the first and third sides (101, 103); an inner tab (134) on the inner edge of the fourth side (104); two second protrusions (152) at opposite ends of an outer edge of the second side (102); and two fourth protrusions (154) at opposite ends of an outer edge of the fourth side (104).
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
A turbocharger for an internal combustion engine is provided. The turbocharger comprises a compressor, a turbine and a bearing section. The compressor is configured to compress intake gas of the internal combustion engine. The turbine is configured to receive exhaust gas of the internal combustion engine. The bearing section is arranged between the compressor and the turbine. The compressor comprises a diffuser portion. The diffuser portion comprises a compressor-side diffuser portion having a first surface and a bearing-side diffuser portion having a second surface located opposite the first surface of the compressor-side diffuser portion. The compressor-side diffuser portion and the bearing-side diffuser portion are spaced apart to define a diffuser passage for intake gas which has been compressed by the compressor. The compressor-side diffuser portion defines a first cooling passage located adjacent to the first surface of the compressor-side diffuser portion, the first cooling passage configured to receive a flow of fluid to cool the first surface of the compressor-side diffuser portion. The bearing-side diffuser portion defines a second cooling passage located adjacent to the bearing-side diffuser portion, the second cooling passage configured to receive a flow of fluid to cool the second surface of the bearing-side diffuser portion.
The present invention relates to a method for treating cylindrical tracks of cylinders or cylindrical sleeves, the method comprising the contactless application of a pulsed laser beam to a honed surface (5) of the cylindrical track or cylindrical sleeve, wherein the honed surface (5) has honing channels (7) and/or secondary channels, wherein the application of the pulsed laser beam is configured such that cementite portions (2) on the honed surface (5) are remelted to form a cementite layer (8).
A hydrogen fuel system for a work machine is disclosed. The hydrogen fuel system comprises a hydrogen storage tank containing hydrogen, the hydrogen being at least one of a liquid hydrogen or a gaseous hydrogen; a hydrogen power unit configured to consume the hydrogen from the hydrogen storage tank, the hydrogen power unit including at least one of a plurality of fuel cells or a hydrogen combustion engine; a boil-off pressure relief valve in fluid communication with the hydrogen storage tank; and a tank pressure sensor in communication with the boil-off pressure relief valve. The boil-off pressure relief valve is configured to, when the tank pressure sensor detects a pressure inside the hydrogen storage tank that exceeds a boil-off pressure threshold, vent the gaseous hydrogen to a boil-off fuel line fluidly connected to the hydrogen power unit.
A portable charging system for an off-road electric vehicle includes a line connection port; a first Alternating Current to Direct Current (AC-to-DC) converter circuit connected to the line connection port, wherein the first AC-to-DC converter circuit is a bidirectional AC-to-DC converter circuit; and a three-port triple active bridge (TAB) converter circuit including a DC line port coupled to the first AC-to-DC converter circuit, a DC charging port, and a DC energy storage port.
Techniques are described that not only weigh frequency/voltage and real/reactive load sharing separately, but also utilize a window around a setpoint, such as a percentage of an output range, and determine whether there is oscillation. In response, a control system can adjust a time-independent component of a closed-loop controller to weaken the time-independent component to try and reduce the oscillation. The control system can continue to monitor and weaken the time-independent component until it reaches some limit or until it comes back into control.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
In some implementations, a controller of a machine may receive an indication of performance, by the machine, of a loading operation associated with a material. The controller may determine, based on the indication, a physical location associated with the loading operation. The controller may identify, based on the physical location, prior loading operation data. The controller may determine, based on the prior loading operation data, estimated identification information associated with the material. The controller may cause, based on the estimated identification information, one or more actions to be performed.
A seal assembly for a hydraulic cylinder piston rod includes an annular buffer seal and an annular backup ring. The outer annular seal surface can be spaced farther from the first axial pressure side of the annular buffer seal than the radially inner annular seal surface of the buffer seal such that an annular notch is formed around an inner diameter of the annular buffer seal on the second axial seal side of the annular buffer seal. The annular backup ring can include a radially extending leg portion extending along substantially an entire radial extent of the radially outer annular seal surface of the annular buffer seal, and an axially extending leg portion extending axially into the annular notch formed around the inner diameter of the annular buffer seal on the second axial seal side of the annular buffer seal.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F16J 15/16 - Sealings between relatively-moving surfaces
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
The system obtains SOH (200, 210, 220) of a first component (130), where the SOH (200, 210, 220) indicates a difference between a current state of the first component (130) and a state of a rated new component (130). The system obtains historical use of the first component (130). Based on the SOH (200, 210, 220) and the historical use, the system determines a future SOH (200, 210, 220) of the first component (130). The system obtains an indication of a requested SOH (200, 210, 220) of the first component (130). Based on the indication of the requested SOH (200, 210, 220) and the future SOH (200, 210, 220) of the first component (130), the system determines a first time indicating when the first component (130) will need to be replaced. The system determines a second time indicating when the second component (130) is available to replace the first component (130), where the second time occurs before the first time. The system requests a delivery of the second component (130) when the second time is substantially close to the first time.
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
46.
PHOSPHATING AND SOLID LUBRICATION TO REDUCE WEAR IN BEARINGS
A tricone bit (100) having one or more bearings with deposited lubricant layers (606, 608) is disclosed. The lubricant layers (606, 608) may comprise one or both of a metal-phosphate (606) and/or solid lubricant (608). The lubricant layers (606, 608) may be disposed on one or more of the bearings, the journal bases (200), and/or the cones (102). The lubricant layers (606, 608) can also be used for applications of bearings other than for tricone bits (100). The deposited lubricant layers (606, 608) may be more persistent lubrication for tricone bits (100), such as air-cooled tricone bits (100), compared to conventional lubricants for tricone bits. The metal-phosphate layer (606) may include one or more of zinc phosphate, manganese phosphate, iron phosphate, or the like. The solid lubricant (608) may include one or more inorganic fullerenes, tungsten disulfide, molybdenum disulfide, graphite, graphene, or the like.
A portable charging system for an off-road electric vehicle includes a line connection port; a first Alternating Current to Direct Current (AC-to-DC) converter circuit connected to the line connection port, wherein the first AC-to-DC converter circuit is a bidirectional AC-to-DC converter circuit; and a three-port triple active bridge (TAB) converter circuit including a DC line port coupled to the first AC-to-DC converter circuit, a DC charging port, and a DC energy storage port.
Techniques are described that not only weigh frequency/voltage and real/reactive load sharing separately, but also utilize a window around a setpoint, such as a percentage of an output range, and determine whether there is oscillation. In response, a control system can adjust a time-independent component of a closed-loop controller to weaken the time-independent component to try and reduce the oscillation. The control system can continue to monitor and weaken the time-independent component until it reaches some limit or until it comes back into control.
A rotary drill bit (200) includes a plurality of rotating cones (206) each including a plurality of cutting tips (210), and a plurality of legs (208) on which the plurality of cones (206) are respectively supported. Each leg (208) includes a journal area (220) configured to rotatable support the respective cone (206), a primary conduit (250) extending internally within the leg (208) and configured to receive air from an air compressor (36), a first journal conduit (252) downstream from the primary conduit (250) and extending to a first air orifice (242) of the journal area (220), and at least one second journal conduit (254) downstream from the primary conduit (250) and extending to at least one corresponding second air orifice (244) of the journal area (220). A ratio of a cross-sectional diameter (253) of the first journal conduit (252) to a cross-sectional diameter (253) of at least one of the second journal conduits (254) is in a range of about 1 to about 1.4.
A nuisance condition detection system (200) for a work machine (100, 500, 600) includes an object detection sensor (202). The object detection sensor (202) detects an object (126) present in a field of view of the object detection sensor (202). The object detection sensor (202) generates a first information (I1) pertaining to the object (126) present in the field of view of the object detection sensor (202). The nuisance condition detection system (200) also includes a controller (204). The controller (204) includes one or more memories (206) and one or more processors (208). The one or more processors (208) receive the first information (I1) pertaining to the object (126) from the object detection sensor (202). The one or more processors (208) analyze the first information (I1) to determine if the object (126) detected by the object detection sensor (202) corresponds to a component (112, 512, 612) of the work machine (100, 500, 600). The one or more processors (208) prevent a generation of an alert if the object (126) corresponds to the component (112, 512, 612) of the work machine (100, 500, 600).
A mobile electric power supply unit for supplying power to an electric work vehicle comprises a battery. The power supply unit comprises a power supply coupler configured to couple to a transporter vehicle, wherein the power supply unit is configured to be transported by the transporter vehicle when the power supply coupler is coupled to the transporter vehicle.
B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
B60L 53/66 - Data transfer between charging stations and vehicles
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
H01R 13/639 - Additional means for holding or locking coupling parts together after engagement
A modular and scalable AC/DC substation transforms AC voltage to DC voltage for driving a high-voltage and high-current load, such as a heavy work machine. Sized to fit within a standard high-cube ISO shipping container, the substation includes a main transformer attached at a center of a rectangular base with a pair of controlled rectifiers positioned on the base downstream from the main transformer, aligned parallel to a lateral axis of the base, and substantially symmetrical to a longitudinal axis of the base. The arrangement of these components on the base, together with lowpass filters and switchgear, achieves high power density for the substation, provides balanced mass for stability during shipment and placement, and helps protect personnel from accidental electrical arcing.
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
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
Apparatus, devices and methods including apparatus for aftertreatment for a diesel engine, optionally including: a housing having an inlet, an outlet and defining a cavity therein; a plurality of tubes mounted within the cavity and arranged to define a multi-flow split arrangement to pass an exhaust flow of the diesel engine through each of the plurality of tubes; and a plurality of treatment units configured to treat the exhaust flow within the housing, wherein each of the plurality of treatment units is coupled within a corresponding one of the plurality of tubes to receive a portion of the exhaust flow. A number of the plurality of treatment units utilized to treat the exhaust flow within the housing is less than a number of the plurality of tubes such that at least one of the plurality of tubes does not contain one of the plurality of treatment units.
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
A nuisance condition detection system for a work machine includes an object detection sensor. The object detection sensor detects an object present in a field of view of the object detection sensor. The object detection sensor generates a first information pertaining to the object present in the field of view of the object detection sensor. The nuisance condition detection system also includes a controller. The controller includes one or more memories and one or more processors. The one or more processors receive the first information pertaining to the object from the object detection sensor. The one or more processors analyze the first information to determine if the object detected by the object detection sensor corresponds to a component of the work machine. The one or more processors prevent a generation of an alert if the object corresponds to the component of the work machine.
A controller may obtain one or more ground surface work records from one or more databases, the one or more ground surface work records identifying information relating to at least one of base layer preparation, paving, or compacting of a ground surface performed at a worksite by a plurality of work machines. The controller may determine, based on the one or more ground surface work records, configuration information for a ground surface work operation to be performed by a work machine of the plurality of work machines. The controller may generate a signal, based on the configuration information, to cause the work machine to perform the ground surface work operation or to cause presentation of the configuration information on a display of the work machine.
E01C 19/00 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
A system and method for compacting asphalt or similar materials operates a compactor according to a rolling pattern that involves a plurality of passes in a straight-line direction that terminate in a corresponding plurality of turnouts that deviate from the straight-line direction. The compactor can include one or more sensors and an electronic controller configured to determine the location of a previous turnout. The compactor is propelled spatially past the previous turnout before steering into a subsequent turnout so that the plurality of turnout are spatially staggered and varied.
E01C 19/00 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
G05D 1/02 - Control of position or course in two dimensions
A leg assembly (102) of a tricone bit includes a cone and a leg fitting inside the cone. The leg includes an axis (232) defining an axial center of rotation of the cone, a first raceway for a first row of bearings (202), a second raceway for a second row of bearings (206), and a third raceway for a third row of bearings (210) disposed between the cone and the leg, at a distal end (204), at a middle section (208), and at a proximal end (212) of the leg. A first clearance for the first row of bearings for the first raceway is less than a second clearance for the second row of bearings for the second raceway, which is less than a third clearance for the third row of bearings for the third raceway, such that the first row of bearings initially supports most of the radial load applied to the tricone bit.
An air-cooled tricone bit (100) having an air conduit (310, 312) corresponding to individual cones (102) of the tricone bit (100) is filled with lubricant or grease with particles therein is disclosed. The grease may include fullerene-like particles, such as tungsten disulfide, molybdenum disulfide, graphene, graphite, or the like. By packing the air conduit (310, 312) of the tricone bit (100) with the grease with particles, the grease with particles may flow during an initial break-in period of the tricone bit (100) to coat the internal components of the tricone bit (100). This reduces the friction between the internal components of the tricone bit (100), such as journal bases (200), cones (102), and/or bearing elements (204, 206, 208). The reduced friction between the internal components of the tricone bit (100) result in reduced wear, both during the break-in period and after the break-in period. The reduced wear results in a greater operating lifetime of the tricone bits (100).
This disclosure describes, in part, systems and structures for a rotary cone drill bit (100) having a body (102) and rolling cone cutters (110), wherein the rolling cone cutters (110) are coupled to the body (102) through a bearing retention interface including ball bearings (114) in a captured channel between the body (102) and the rolling cone cutters (110). The ball bearings (114) are inserted through an opening (128) that is subsequently filled with a retainer pin (120) having an engagement feature (210) that ensures alignment of the retainer pin (120) with respect to the captured channel and the ball bearings (114) to reduce wear within the rotary cone drill bit.
A modular and scalable AC/DC substation (102A) transforms AC voltage to DC voltage for driving a high-voltage and high-current load, such as a heavy work machine. Sized to fit within a standard high-cube ISO shipping container, the substation (102A) includes a main transformer (214) attached at a center of a rectangular base (104) with a pair of controlled rectifiers (230, 232) positioned on the base (104) downstream from the main transformer (214), aligned parallel to a lateral axis of the base (104), and substantially symmetrical to a longitudinal axis of the base (104). The arrangement of these components on the base (104), together with lowpass filters (234) and switchgear (216, 236, 238), achieves high power density for the substation (102), provides balanced mass for stability during shipment and placement, and helps protect personnel from accidental electrical arcing.
Operating an engine system includes calculating a crank angle timing term corresponding to an in-cylinder temperature sufficient for autoignition of a first fuel injected at a first injection location. Operating an engine system further includes calculating, based on the crank angle timing term, at least one of an injection amount or an injection duration, to increase the in-cylinder temperature sufficiently via burning of the first fuel to ignite a second fuel injected into a mixture of the first fuel and pressurized intake air. The first fuel may include a blend of dimethyl ether (DME), methanol (MeOH), and water. Based on expected progression of in-cylinder temperatures, and fuel injection amount and/or duration based thereon, desirable controllability of combustion phasing and/or other combustion properties may be realized.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
62.
Cylinder head configured for improved cooling performance and manufacturability
A cylinder head includes a cylinder head casting having a top deck and a bottom deck, and a coolant cavity. The cylinder head also includes an igniter column including an upper section, and a necked-down lower section extending upwardly from the bottom deck. The igniter column includes an inner surface forming an igniter bore such as for a sparkplug, and an outer heat-dissipation surface. The outer heat-dissipation surface is exposed in circumferential uniformity to the coolant cavity and extends radially inwardly of the inner surface at locations axially between an igniter seat and a bottom deck cavity surface. In some embodiments, a cylinder head includes an enclosed as-cast cooling channel axially between an igniter seat and a bottom deck combustion surface.
A spacer for a valvetrain in an engine system includes a spacer body defining a spacer axis extending between a first axial spacer body end and a second axial spacer body end, and including an outer peripheral surface, a circumferentially extending inner peripheral surface forming a through-bore, an oil spray port extending from the inner peripheral surface to the outer peripheral surface, and a circumferentially extending fluid groove formed in the inner peripheral surface and extending to the oil spray port. Related valvetrain and rocker arm assembly apparatus is also disclosed.
A moldboard assembly and method of reinforcing a moldboard assembly is disclosed. The moldboard assembly may comprise a moldboard including a front and a back, an upper rail and a lower rail spaced apart from the upper rail, and a back plate. The upper rail and the lower rail each may be mounted to and extend lengthwise across the back of the moldboard. The upper rail may be oriented to slope upward at a first angle from a vertical plane, and the lower rail may be oriented to slope downward at a second angle from the vertical plane. Each of the upper rail and lower rail include a top, a bottom, an inner side and an outer side disposed opposite to the inner side. The back plate may be mounted to the inner side of the upper rail and to the inner side of the lower rail.
This disclosure describes, in part, systems and structures for a rotary cone drill bit having a body and rolling cone cutters, wherein the rolling cone cutters are coupled to the body through a bearing retention interface including ball bearings in a captured channel between the body and the rolling cone cutters. The ball bearings are inserted through an opening that is subsequently filled with a retainer pin having an engagement feature that ensures alignment of the retainer pin with respect to the captured channel and the ball bearings to reduce wear within the rotary cone drill bit.
A system for determining a connection status of a battery system of a work machine includes one or more processors configured to detect, based on information from a communication system of the work machine, a key-off event of the work machine and determine, after the key-off event of the work machine, that a device associated with an operator of the work machine has moved away from the work machine by the predetermined distance. The one or more processors are also configured to determine, based on the device being moved away by at least the predetermined distance and based on the device being unable to communicate with the communication system, that the battery system is in a disconnected state and indicate, based on the battery system being in the disconnected state, to the operator that the battery system is in the disconnected state.
B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
72.
ELECTROPLATED COATINGS FOR CONDUCTOR CORROSION RESISTANCE
A work machine, such as a hauler at a mining site, includes a conductor rod housing concentric metal tubes for receiving electrical power from a contactor sliding on a power rail. Electrical connectivity between conductors within the conductor rod, between the concentric metal tubes, are provided using a conductive liquid. Corrosion barriers are used to protect the concentric metal tubes from corrosion resulting from contact with the conductive liquid. The corrosion barriers are electroplated and include nickel phosphide and/or cobalt phosphide to maintain the electrical connectivity between the conductors, while protecting the conductors from corrosion.
An air-cooled tricone bit having an air conduit corresponding to individual cones of the tricone bit is filled with lubricant or grease with particles therein is disclosed. The grease may include fullerene-like particles, such as tungsten disulfide, molybdenum disulfide, graphene, graphite, or the like. By packing the air conduit of the tricone bit with the grease with particles, the grease with particles may flow during an initial break-in period of the tricone bit to coat the internal components of the tricone bit. This reduces the friction between the internal components of the tricone bit, such as journal bases, cones, and/or bearing elements. The reduced friction between the internal components of the tricone bit result in reduced wear, both during the break-in period and after the break-in period. The reduced wear results in a greater operating lifetime of the tricone bits.
A method of charging management for a worksite comprising a plurality of autonomous electric work vehicles is provided. The method comprises communicating charger properties from a plurality of charging modules to a central controller and communicating vehicle properties from a plurality of electric work vehicles to the central controller. Charging is scheduled for the plurality of electric work vehicles based on the charger properties and the vehicle properties, wherein scheduling charging comprises assigning to each of the electric work vehicles a designated charging time and a designated charging module. Each electric work vehicle and its designated charging module are brought together at the designated charging time of the electric work vehicle.
A rotary drill bit includes a plurality of rotating cones each including a plurality of cutting tips, and a plurality of legs on which the plurality of cones are respectively supported. Each leg includes a journal area configured to rotatably support the respective cone, a primary conduit extending internally within the leg and configured to receive air from an air compressor, a first journal conduit downstream from the primary conduit and extending to a first air orifice of the journal area, and at least one second journal conduit downstream from the primary conduit and extending to at least one corresponding second air orifice of the journal area. A ratio of a cross-sectional diameter of the first journal conduit to a cross-sectional diameter of at least one of the second journal conduits is in a range of about 1 to about 1.4.
A controller may obtain, from one or more sensors of an operator control of a work machine, sensor data collected from at least one hand of an operator using the operator control. The controller may determine, based on the sensor data, at least one of a physiological profile of the operator or an amount of time that the operator releases the operator control. The controller may cause, based on the at least one of the physiological profile of the operator or the amount of time that the operator releases the operator control, a limitation on a capability of a work implement of the work machine.
B60W 50/12 - Limiting control by the driver depending on vehicle state, e.g. interlocking means for the control input for preventing unsafe operation
B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers
A ground engaging tip assembly (10) includes a ground engaging tip (14), an adapter (12), and a retention mechanism (13). The ground engaging tip includes an inner surface (136, 137, 138, 146, 160, 166) extending inward from a rear edge (90) defining a nose cavity (126) within the ground engaging tip. The nose cavity includes a front inner surface (136), top inner surface (146), bottom inner surface (166), and oppositely disposed side inner surfaces (162). The top inner surface includes a front inner portion (148) proximate the front inner surface comprising a front central inner surface (149) connecting two opposing front side‑sloping surfaces (150) and a rear portion (152) proximate the rear edge comprising a rear central inner surface (153) connecting two opposing rear side‑sloping surfaces (154). The bottom inner surface (166) includes a tapered bottom channel (174). The adapter includes a nose (26) configured to be inserted into the nose cavity of the ground engaging tip. The retention mechanism is configured to secure the ground engaging tip to the adapter.
This disclosure provides techniques for assessing projects based on their project fields and evaluating their progress. In accordance with the techniques described herein, an example system may use project schema (110)s that include various project fields, such as precondition, success criterion, in-scope, and out-of-scope fields, to define requirements-related concepts associated with the projects. These project fields may be characterized by their relevance levels, maturity level (124)s, and description data (126). The system employs assessment measures that consider the relevance level and maturity level (124) of the project fields to determine the project's assessment report.
The present invention pertains to inserts for a spark plug sleeve of a combustion engine as well as a spark plug sleeve comprising such insert, a corresponding spark plug system and spark plug. In particular, inserts are suggested to improve a cooling of a spark plug mounted in a spark plug sleeve. Accordingly, an insert (22) for a spark plug sleeve (12) of a combustion engine is suggested, comprising a longitudinal body having an outer wall (28), said outer wall (28) defining an inner cavity being configured to removably accommodate a spark plug (10) therein in the mounted state of the insert (22), wherein the longitudinal body is configured to be movably arranged within the spark plug sleeve (12) between a first position sealing a radial opening (38) of the spark plug sleeve (12) and a second position providing a fluid communication between the radial opening (38) and an end portion (16) of the spark plug (10) in the mounted state of the insert (22).
A method of charge management for electric work vehicles comprises communicating charger properties from a charging module to an electric work vehicle and communicating vehicle properties from the electric work vehicle to the charging module. Charging information is provided to an operator, wherein the charging information is based on the charger properties and the vehicle properties. The charger properties comprise a location of the charging module and an availability of the charging module. The vehicle properties comprise a current state of charge of a battery of the electric work vehicle and a capacity of the battery of the electric work vehicle.
B60L 53/66 - Data transfer between charging stations and vehicles
B60L 53/10 - Methods of charging batteries, specially adapted for electric vehiclesCharging stations or on-board charging equipment thereforExchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
B60L 53/30 - Constructional details of charging stations
B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
A bucket for a work machine is disclosed. The bucket has a base plate at a top end of the bucket, a lip plate at a bottom end, and a pair of side plates that extend down from the base plate to the bottom end. A wrapper has a first curved portion, having a first radius of curvature, that extends to a first flat portion. The first flat portion extends to a second curved portion having a second radius of curvature. The first flat portion extends between the first curved portion and the second curved portion.
A mobile construction equipment for operation on a surface includes: a work tool that is movable between at least one float position, in which the work tool floats with respect to the surface, and at least one non-float position, in which the work tool does not float with respect to the surface; a machine speed sensor for providing a machine speed of the mobile construction equipment; and a controller having a work tool float mode, in which the work tool is movable to the at least one float position, the controller, in a work tool float inhibit mode, in which the work tool is not movable to the at least one float position, receiving the machine speed, and, if the machine speed exceeds a float activation limit: disabling the work tool float mode so as to prevent the work tool from moving to the at least one float position.
This disclosure provides techniques for assessing projects based on their project fields and evaluating their progress. In accordance with the techniques described herein, an example system may use project schemas that include various project fields, such as precondition, success criterion, in-scope, and out-of-scope fields, to define requirements-related concepts associated with the projects. These project fields may be characterized by their relevance levels, maturity levels, and description data. The system employs assessment measures that consider the relevance level and maturity level of the project fields to determine the project's assessment report.
A tricone bit having one or more bearings with deposited lubricant layers is disclosed. The lubricant layers may comprise one or both of a metal-phosphate and/or solid lubricant. The lubricant layers may be disposed on one or more of the bearings, the journal bases, and/or the cones. The lubricant layers can also be used for applications of bearings other than for tricone bits. The deposited lubricant layers may be more persistent lubrication for tricone bits, such as air-cooled tricone bits, compared to conventional lubricants for tricone bits. The metal-phosphate layer may include one or more of zinc phosphate, manganese phosphate, iron phosphate, or the like. The solid lubricant may include one or more inorganic fullerenes, tungsten disulfide, molybdenum disulfide, graphite, graphene, or the like.
The system obtains SOH of a first component, where the SOH indicates a difference between a current state of the first component and a state of a rated new component. The system obtains historical use of the first component. Based on the SOH and the historical use, the system determines a future SOH of the first component. The system obtains an indication of a requested SOH of the first component. Based on the indication of the requested SOH and the future SOH of the first component, the system determines a first time indicating when the first component will need to be replaced. The system determines a second time indicating when the second component is available to replace the first component, where the second time occurs before the first time. The system requests a delivery of the second component when the second time is substantially close to the first time.
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
A work machine discharges material through a discharge port at a moving discharge target in a coordinated maneuver during which the discharge target is confined to a bounded area. A distance control mechanism selects path information to a dwell location of the coordinated maneuver. Sensors generate respective signals by which a relative position of the discharge port to the bounded area are indicated during the coordinated maneuver. A messenger indicates the selected path information to compel relocation of the bounded area according thereto.
A retention mechanism (200) for connecting a ground engaging tip (210) and an adapter (205) has a spring (235), a retainer block (230) configured for insertion into a cutout (220) in the adapter, and a retainer (225). The retainer block has a cavity (232) having an internal thread. The retainer block also has an outer surface (234) defining a contact surface (610), a back surface (612) opposite the contact surface, and a plurality of angled surfaces (615) between the contact surface and the back surface. Further, the retainer block has a slot (620) passing through the back surface and configured to receive the spring. The retainer is configured for insertion in in the cavity of the retainer block. The retainer has a threaded outer surface configured to engage with the internal thread of the retainer block, a detent cutout (515) configured to receive a portion of the spring, and a chamfered bottom surface (520) configured to engage with and deflect the portion of the spring.
A bucket (12) for a work machine (1) is disclosed. The bucket has a base plate (23) at a top end of the bucket (17), a lip plate (31) at a bottom end (29), and a pair of side plates (19, 20) that extend down from the base plate to the bottom end. A wrapper (38) has a first curved portion (41), having a first radius of curvature (B), that extends to a first flat portion (40). The first flat portion extends to a second curved portion (39) having a second radius of curvature (A). The first flat portion extends between the first curved portion and the second curved portion.
A work machine (100), such as a hauler at a mining site, includes a conductor rod (106) housing concentric metal tubes (222, 234) for receiving electrical power from a contactor (118) sliding on a power rail (108). Electrical connectivity between conductors within the conductor rod (106), between the concentric metal tubes (222, 234), are provided using a conductive liquid. Corrosion barriers (302, 304) are used to protect the concentric metal tubes (222, 234) from corrosion resulting from contact with the conductive liquid. The corrosion barriers (302, 304) are electroplated and include nickel phosphide and/or cobalt phosphide to maintain the electrical connectivity between the conductors, while protecting the conductors from corrosion.
B60L 5/38 - Current-collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
B60L 50/53 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
H01B 5/02 - Single bars, rods, wires or stripsBus-bars
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
90.
SURROUND VIEW MONITORING METHOD FOR A WORK MACHINE AND THE WORK MACHINE
The present disclosure relates to a surround view monitoring method for a work machine and the corresponding work machine. The work machine comprises a working mechanism extending outward from a vehicle body of the work machine. A first mechanism camera and a second mechanism camera that are capable of capturing at least a portion of the working mechanism, and at least one remaining camera except the first and second mechanism cameras are installed on and around the vehicle body. The method comprises the steps of: acquiring respective images by the cameras; generating a first panoramic image by using image acquired by the first mechanism camera and image acquired by the remaining camera, and generating a second panoramic image by using image acquired by the second mechanism camera and image acquired by the remaining camera; determining a first area occupied by the working mechanism in the first panoramic image and a second area occupied by the working mechanism in the second panoramic image; and comparing the first area with the second area and outputting the panoramic image corresponding to a smaller one of the first and second areas as a panoramic image of the work machine. The surround view monitoring method always ensures a smallest blind area resulting from blocking by the working mechanism to improve the driving and operating safety of the work machine.
A gaseous fuel engine system includes an engine housing forming a plurality of intake ports, and a plurality of fuel admission tubes oriented to admit a gaseous fuel into the plurality of intake ports. The fuel admission tubes include mixers having flow-impinged surfaces exposed to at least one of a flow of gaseous fuel or a flow of intake air and each including a detachment edge. The mixers may include fins, wedge structures, and/or a contoured outer surface of the fuel admission tube. Related apparatus and methodology is also disclosed.
A spacer for a valvetrain in an engine system includes a spacer body defining a spacer axis and including a through-bore extending from a first axial end to a second axial end, an outer arcuate surface, and an inner arcuate surface having an oil feed inlet. The spacer further includes an orientation element extending from the spacer body and defining an orientation axis transverse to the spacer axis, and including an inner orientation surface and an outer orientation surface. The spacer further includes an oil application structure defining a structure axis oriented transverse to both the spacer axis and the orientation axis, and including a plurality of oil spray channels, each respective one of the plurality of oil spray channels including an oil outlet at a termination point and being fluidly connected to the oil feed inlet.
A system for reverting an actual heading of a mobile construction equipment subject to load from one or more work implements to a desired heading, the mobile construction equipment having a front frame articulatable with respect to a rear frame, the front frame including a steering apparatus, the system including: a rear inertial motion unit disposed on the rear frame, the rear inertial motion unit for providing an actual rear frame yaw rate; a steering sensor for providing an actual steering angle of the steering apparatus; an articulation sensor for providing an actual articulation angle between the front frame and the rear frame; and a controller for: receiving the actual rear frame yaw rate, the actual steering angle, and the actual articulation angle to determine the actual heading, receiving a steering control indicating a desired steering angle of the steering apparatus and an articulation control indicating a desired articulation angle.
A retention mechanism may have a pin inserted into a retainer pin opening in the adapter. The retention mechanism may also have a spring clip inserted into the tip through a first end of a transverse hole in the tip, and a retainer inserted through a second end of the transverse hole. The retainer may have a retainer body extending from a first axial end to a second axial end. The retainer may have at least one tab extending radially from the retainer body at the first axial end. The at least one tab may engage with a female thread in the transverse hole. The retainer may have at least one detent cutout disposed on an outer surface of the retainer body for receiving a portion of the spring clip. The retainer may also have an axial cavity at the second axial end for receiving one end of the pin.
A retention mechanism for connecting a tip to an adapter may have a main retainer, a center pin, and a center pin clip attachable to the center pin. The main retainer may have a retainer body, a non-circular thru hole extending along a central axis, and a male thread around an outer surface of the main retainer. The male thread may engage a female thread in a transverse thru hole in the tip. The center pin may have a profile matching that of the non-circular thru hole of the main retainer. The non-circular thru hole of the main retainer may align with a non-circular blind hole in the adapter when in its fully engaged position. The center pin may be inserted into the non-circular thru hole of the main retainer with a distal end of the center pin positioned in the non-circular blind hole in the adapter.
A retention mechanism for connecting a ground engaging tip and an adapter has a spring, a retainer block configured for insertion into a cutout in the adapter, and a retainer. The retainer block has a cavity having an internal thread. The retainer block also has an outer surface defining a contact surface, a back surface opposite the contact surface, and a plurality of angled surfaces between the contact surface and the back surface. Further, the retainer block has a slot passing through the back surface and configured to receive the spring. The retainer is configured for insertion in in the cavity of the retainer block. The retainer has a threaded outer surface configured to engage with the internal thread of the retainer block, a detent cutout configured to receive a portion of the spring, and a chamfered bottom surface configured to engage with and deflect the portion of the spring.
To provide a pilot pressure control device capable of securing a pilot pressure with an inexpensive configuration. There is equipped with a controller configured, when a pump pressure drops to a predetermined pressure or below resulting from the drive of a fluid pressure actuator, to control so as to throttle an opening of a spool that is the cause of the drop in the pump pressure. The pump pressure can be maintained with an inexpensive configuration without increasing the size of an accumulator for pressure accumulation, and the pilot pressure can be secured by the pilot circuit from this pump pressure.
F15B 13/042 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
A valve is provided, wherein the valve is configured to direct an incident gas flow. A position of the valve is adjusted by a single actuator. The valve is configured to be movable between a plurality of positions by the actuator such that in a first position range, the valve is configured to direct the incident gas to a first outlet; and in a second position range, the valve is configured to direct the incident gas to a second outlet. The valve is configured to control a flow rate of the gas flow.
A ground engaging tip assembly includes a ground engaging tip, an adapter, and a retention mechanism. The ground engaging tip includes an inner surface extending inward from a rear edge defining a nose cavity within the ground engaging tip. The nose cavity includes a front inner surface, top inner surface, bottom inner surface, and oppositely disposed side inner surfaces. The top inner surface includes a front portion proximate the front inner surface comprising a front central surface connecting two opposing front side-sloping surfaces and a rear portion proximate the rear edge comprising a rear central surface connecting two opposing rear side-sloping surfaces. The bottom includes a tapered bottom channel. The adapter includes a nose portion configured to be inserted into the nose cavity of the ground engaging tip. The retention mechanism is configured to secure the ground engaging tip to the adapter.
A milling machine can include a frame, a milling assembly including a cutting rotor and a rotor housing coupled to the frame, the cutting rotor including a rotor shell positioned around a spindle, and a first axial alignment feature on one of the rotor shell or the spindle, the first axial alignment feature including a physical feature on a surface of the rotor shell or the spindle, the physical feature being positioned and configured to contact an opposing flat surface of the opposing rotor shell or spindle so as to guide the rotor shell and the spindle into a co-axial alignment as the rotor shell is loaded axially onto the spindle.
E01C 23/12 - Devices or arrangements for working the finished surfaceDevices for repairing the surface of damaged paving for taking-up, tearing-up, or breaking-up paving
