53 results about "Accessory drive" patented technology

The utility model relates to the technical field of engine oil seal, concretely is a kind of engine accessory drive dustproof oil seal. Including outer rubber ring, the outer skeleton of being embedded in the outer rubber ring, lip piece fixedly arranged in the inner side of outer rubber ring, the inner side of outer rubber ring is equipped with inner rubber ring, the inner skeleton is embedded in the inner rubber ring, and the end surface of inner rubber ring is evenly distributed with multiple obliquely arranged fins. The dustproof oil seal blows the dust and oil stain near the fin blowing open structure without increasing the number of parts, improves dustproof, heat dissipation performance. For some more severe working environment, the service life of oil seal can be greatly improved.

The application aims to provide an aero-engine accessory drive system, which comprises a drive gear box, an accessory and a sealing assembly. The drive gear box has a first drive shaft, the accessory has a second drive shaft, and the second drive shaft is in driving connection with the first drive shaft. The sealing assembly has a matching part, the sealing assembly is in matching connection with the first drive shaft or the second drive shaft through the matching part, and the sealing assembly is clamped between the first drive shaft and the second drive shaft. At least a part of the sealing assembly is made of a shape memory alloy, so that the sealing assembly is deformed radially to be in interference fit with the second drive shaft in a high-temperature state. The aero-engine accessory drive system can meet the fireproof requirement and is easy to realize.

The present application relates to the technical field of engine accessory drive assembly test, in particular to a lubricating oil warming device, comprising: an oil supply mechanism, the oil supply mechanism is provided with an oil outlet, an oil return port and an overflow port, the oil outlet is suitable for being connected with the oil inlet end of a test piece through a first pipeline, the oil return port is connected with the oil outlet end of the test piece through a second pipeline; a recovery mechanism is in communication with the overflow port of the oil supply mechanism through an overflow pipeline; a pressure relief mechanism is arranged on the overflow pipeline and is in communication with the overflow pipeline, and is used for relieving the pressure of the oil supply mechanism. The technical problem of waste and poor safety caused by the overflow of lubricating oil during pressure relief of the existing lubricating oil warming device is solved.

The present invention discloses a multi-point power output drive shaft for an aircraft engine. The drive shaft is provided with three sections of splines: front, middle, and rear, for transmitting power through the multi-point splines. The front section splines cooperate with the internal splines of a reducer component for transmission, with the spline pair having a clearance of 0.29 to 0.41. The middle section splines cooperate with the internal splines of the oblique transmission device drive shaft for transmission, with a clearance of 0.14 to 0.25. The front end of the rear section of the splines cooperates with the internal splines of the accessory drive gear for transmission; the rear end of the rear section of the internal splines cooperates with the internal splines of the compressor first-stage impeller for transmission, with the spline pair having a clearance of 0.14 to 0.25. The front splines are provided with an oil collecting pan for lubrication and an oil drain pan for draining lubricating oil. The three splines are designed in a reasonable position, with the spline spacing matching the power transmission level. The multi-point power transmission is stable, achieving stable transmission at each power output point on the drive shaft and achieving a spline load distribution effect.

An accessory drive system for a turbine engine includes a first input shaft that is coupled to a first engine drive shaft, a constant speed drive that is driven at an input speed by the first input shaft that varies, the constant speed drive includes an output that rotates at a constant speed independent of the input speed, an accessory gearbox that includes a first gear system that is driven by the output from the constant speed drive, and a first accessory component that is mounted to the accessory gearbox and driven by the gear system.

To provide a vehicle that avoids wrong recognition of a driver that engine behavior in an idle operation state is unstable.SOLUTION: A vehicle includes an engine, an auxiliary machine driven by the engine, a display device and a control device. The control device includes: an engine control section that controls the engine so that actual idling speed of the engine in an idle operation state becomes target idling speed that fluctuates in accordance with a load to the engine by the auxiliary machine; an acquisition section that acquires the actual idling speed; a change determination section that determines whether or not an accelerator opening is zero and the target idling speed is changing; a calculation section that calculates slow change idling speed obtained by performing moderating processing at a predetermined moderating degree relative to the actual idling speed when the change determination section makes an affirmative determination; and a display control section that causes the display device to display the slow change idling speed.SELECTED DRAWING: Figure 3

A power driven accessory drive for a clampable pipe bender is provided. The accessory drive comprises a transmission part having an input shaft configured to receive rotational input from a conventional corded or cordless drill and an output coupled to a pipe bending arm. The transmission part includes a gear reduction mechanism that converts high-speed, low-torque rotation from the drill into low-speed, high-torque rotation suitable for bending pipes. The pipe bending arm includes at least one pipe pusher configured to engage and bend a pipe. In one embodiment, an extension member with dual pipe pushers supported by triangular plates is provided for bending larger diameter pipes. A mounting assembly allows the accessory drive to be releasably attached to a clampable pipe bender designed for use in restricted areas such as lifting platforms and nacelles, or on a tripod. The invention enables powered pipe bending using tools commonly available on construction sites, facilitating work and expanding the usefulness of the pipe bender tool. In an alternative embodiment, an integrated electric motor replaces the drill.

Hydraulic coupler (10) for an aircraft accessory drive gearbox (1) comprising a housing (14), first (11) and second (12) turbines arranged in the housing, the first and second turbines being opposite each other and defining a coupling volume (13) within the housing, the coupling volume comprising a coupling fluid, in which the hydraulic coupler includes means (4) for emptying the coupling fluid from the coupling volume. Figure for the abbreviation: [Fig.1]

This invention relates to the field of aero-engine technology, specifically to an engine gearbox and an aero-engine having the same. The engine gearbox includes a gearbox body, within which a power output shaft assembly is integrated. The input end of the power output shaft assembly is adapted for transmission with the engine body, and the output end is adapted for transmission with a load mechanism. A central gear is mounted on the power output shaft assembly. An accessory drive gear assembly meshes with the central gear and is adapted for transmission with an accessory mechanism. This allows the load mechanism to rotate synchronously at high speed with the engine's power turbine rotor. Simultaneously, a portion of the power is transmitted to the accessory mechanism via the accessory drive gear assembly through the central gear, enabling the power turbine rotor's rotational speed to drive the accessory mechanisms at their respective suitable speeds after gear shifting.

An air turbine starter (ATS) assembly for an aircraft has an ATS mounted to an accessory drive gearbox. The ATS includes an ATS output shaft is configured to pass from the ATS into the accessory drive gearbox. The accessory drive gearbox includes an overrunning clutch assembly configured to rotationally connect the ATS output shaft to an accessory gearbox shaft when the overrunning clutch engages the ATS output shaft such that the overrunning clutch assembly transmits rotational energy from the ATS output shaft to an accessory gearbox shaft. The overrunning clutch assembly is configured to permit the accessory gearbox shaft to rotate independent of the ATS output shaft when the overrunning shaft is disengaged from the ATS output shaft. The overrunning clutch assembly is configured to be removeable from the accessory drive gearbox as a removeable clutch cartridge.

The accessory control system of the present application comprises: a vehicle state determination section that determines the state of a vehicle; a vehicle environment safety monitoring section that monitors the safety in the vehicle's environment; a remote control command reception section that receives command information from an external device to operate an accessory; an accessory control section that controls the operation of the accessory based on a determination result of the vehicle state determination section, an environment safety monitoring result obtained by the vehicle environment safety monitoring section, and the command information received by the remote control command reception section; and an accessory drive section that drives the accessory based on the control by the accessory control section.

The utility model discloses a ship accessory machining auxiliary platform with a protection mechanism, which belongs to the technical field of ship accessory machining auxiliary platforms and comprises a moving platform, a rotating seat is fixedly connected to the top of the moving platform, a top seat is arranged at the top of the rotating seat, and a hydraulic cylinder is fixedly connected to one side of the top of the top seat. The output end of the hydraulic cylinder extends to the position below the top base and is provided with a fixed protection assembly. According to the device, the driving motor drives the positive and negative lead screw to rotate, the first threaded sleeve drives the connecting block to move towards the direction of the external ship accessory, at the moment, the external ship accessory drives the gear, the connecting shaft and the lead screw to rotate through the fixing plate, the sliding block, the sliding plate and the rack, and the second threaded sleeve drives the guide rod to move on the stroke groove and the arc-shaped groove; the fixing shaft drives the protection plate to rotate by 180 degrees, the bottom of the external ship accessory is protected through the protection plate, and then the surface of the external ship accessory is prevented from being affected.

A control system for operating a military vehicle according to different modes includes processing circuitry that receives a user input indicating a selected mode of the different modes, and operates a driveline and a front end accessory drive (FEAD) of the military vehicle according to the selected mode. The driveline of the military vehicle includes an engine and an integrated motor generator (IMG) and the FEAD includes multiple accessories and an electric motor-generator. The modes include an engine mode and an electric mode. In the engine mode, the engine drives the FEAD and drives tractive elements of the military vehicle through the IMG for transportation. In the electric mode, the engine is shut off to reduce a sound output of the military vehicle and the IMG drives the tractive elements of the military vehicle for transportation and the electric motor-generator drives the FEAD.

The present disclosure relates to an accessory drive of a turbomachine comprising an assembly (1) comprising:-a tubular shaft (2) intended to be driven in rotation about a longitudinal axis (X),-a gear (3) rotationally coupled with the tubular shaft (2), and-at least two annular members (4) for gas / oil mixture separation, and annular members (4) arranged around and integral with the tubular shaft (2), each annular member (4) comprising an annular body (41) housing an annular filter (42), each annular body (41) comprising a gas / oil mixture inlet (43), an oil outlet (44) opening radially outward to the outside of the annular body (41), and a filtered air outlet (45) opening radially inward to the inside of the tubular shaft (2).

The utility model relates to the technical field of door and window accessory transmission, in particular to a small-size variable-speed governor for a door, which comprises a base, one end of the base is fixedly connected with a motor, a first transmission rod is designed at one end of the base close to the motor, and a second transmission rod is designed in the middle of the base. A third transmission rod is designed at the position, close to the right side, of the base, an output rod extends out of the middle of the motor, and a transmission wheel corresponding to the output rod is designed on the first transmission rod. If a large door body is needed, the large door body is not well applicable and the like.

The invention relates to an accessory drive gearbox (25), which comprises: - a casing; - a transmission shaft (32; 32a); and - a transmission system (40) comprising: a pinion (45) fixedly mounted on the transmission shaft and comprising external teeth (45a), a ring gear (46) suitable for being connected to an accessory drive shaft (27; 27a), and comprising internal teeth (48), engaging with the external teeth (45a), such that a rotation of the pinion (45) with respect to the casing (28) rotates the ring gear (46) with respect to the casing, a nozzle (55) able to be rotated relative to the casing and configured, when it is rotating, to expel lubricating oil, and an oil deflector (56) configured to guide the lubricating oil expelled by the nozzle (55) to the internal teeth (48) of the ring gear (46).

A system and method are provided for hybrid electric internal combustion engine applications in which an electric motor generator, a narrow switchable coupling and a torque transfer unit therebetween are arranged fore of the engine in applications such as commercial vehicles, off-road vehicles and stationary engine installations and positioned in a constrained environment. The electric motor generator is preferably positioned laterally offset from the switchable coupling which is arranged coaxially with a forward end of the engine crankshaft. The switchable coupling is an integrated unit in which a crankshaft vibration damper, an engine accessory drive pulley and a disengageable clutch overlap such that the axial depth of the clutch-pulley-damper unit is nearly identical to that of a conventional belt drive pulley and engine damper. The fore end motor generator system includes an electrical energy storage which receives electrical energy generated by the motor generator when the coupling is engaged. When the coupling is disengaged, the motor generator can drive the pulley portion of the clutch-pulley-damper to drive engine accessories independent of the engine crankshaft using energy returned from the energy storage.

The invention provides a high-rotating-speed cross coupling sliding block driving structure which comprises a crankshaft driving shaft head, a flexible cross coupling sliding block and an oil pump load shaft head, the crankshaft driving shaft head, the flexible cross coupling sliding block and the oil pump load shaft head are connected in sequence, the flexible cross coupling sliding block is sleeved with a transmission wheel, and the flexible cross coupling sliding block is sleeved with an oil pump. The flexible cross coupling sliding block and the outer side of the oil pump load shaft head are further sleeved with a transmission plate. The flexible cross coupling has the beneficial effects that reliable connection between the driving shaft and the load shaft is achieved by compensating radial, axial and angular displacement through structures such as flexible cross coupling sliding block aligning, tongue-and-groove clearance and hydraulic damping. An accessory driving coupling structure integrated at the crankshaft end can be achieved, the limitation that a traditional cross sliding block is generally suitable for low-rotating-speed application scenes is broken through, and the high-rotating-speed driving structure of a high-power-to-weight-ratio engine can be achieved to be compact and light. The method can be widely applied to design of engine driving systems of various diesel engines, gasoline engines and the like.

A tensioner for a belt drive of a motor vehicle engine, comprising: a fixed component configured to be constrained to the engine and provided with a pin defining a rotation axis; an arm having a hub portion hinged on the pin and rotatable about the axis and an end portion rotatably supporting a pulley, the pulley being configured to cooperate with a drive belt; a main spring interposed between the fixed component and the arm to exert a thrust on the arm, thereby rotating the arm toward the belt; at least one rolling bearing, supporting the arm on the pin; and a pair of damping devices, the pair of damping devices exerting opposite actions on the arm, thereby minimizing the load on the bearings.

A tensioner for an accessory drive of an internal combustion engine (2) includes a belt (8) on at least a first pulley (3) connected to a drive shaft (4) of the engine (2) and on a second pulley (5) connected to an electric machine (7), the tensioner comprising a base (11) configured to be fixed to a casing (13) of the electric machine, a first ring (15) rotating relative to the base (11) about a first axis (A1), and a second ring (15) rotating relative to the base (11) about a second axis (A2) different from the first axis (A1). a second ring (20) rotating relative to the first ring (15) about its own axis (PA1); a first tensioning pulley (23) carried by the first ring (15) and rotating relative thereto about its own axis (PA1); a second tensioning pulley (27) carried by the second ring (20) and rotating relative thereto about its own axis (PA2); and resilient means (34) acting on the first and second rings (15, 20) to bring the first and second pulleys (23, 27) into contact with respective spans (8a, 8b) of the belt.

A system and method integrate electrification of vehicle accessories conventionally driven by an internal combustion engine in which an electric motor is coupled to a common accessory drive that drive a plurality of accessories, such as a power steering pump, an air conditioning compressor, an air compressor, a thermodynamic heater and / or a coolant pump. The integrated electrified accessory unit preferably has the electric motor, accessory drive and accessories arranged in a common housing which is configured to be mounted to a chassis frame rail of the vehicle, the common housing including wall penetrations which facilitate rapid connection of the accessories to external lines of the vehicle.

A powertrain (1) comprising an internal combustion engine (2) provided with an accessory drive arrangement (19), the accessory drive arrangement (19) comprising a first pulley (21) connected to a crankshaft (3) of the internal combustion engine (2), a second pulley (22) connected to a shaft (33) of a second electric machine (23), and a belt (26) connecting the first and second pulleys to each other for rotation in the same rotational direction (R), wherein the second electric machine (23) is operated to provide an effective torque to the second pulley (22) by means of a starter motor during starting of the internal combustion engine.

The application provides a kind of automobile engine train system accessory integrated support, belong to the technical field of automobile engine, the support includes support shell, support shell is hollow; Wire harness mounting hole, set in one end of support shell;Two first lugs, set in the side of support shell close to wire harness mounting hole, for installing first generator;Exhaust pipe fixing surface, set on support shell, exhaust pipe fixing surface includes a plurality of mounting holes, mounting hole is used to fix exhaust pipe;Tension pulley mounting hole, set on support shell;Idler mounting hole, set in the side of support shell close to tension pulley mounting hole;Two second lugs, set in the side of support shell away from each first lug, for installing second generator.The support can integrate train system accessories into one, has good integration effect, reduces the complexity of layout, improves engine operation stability, while improving the space utilization rate in engine compartment.

The invention relates to a turbine engine (1) comprising:-a housing (4 ', 12); -an accessory drive (20) suspended on the housing and connected to the housing (4 ', 12) and comprising a housing (22) defining an inner cavity and a gear train arranged in the inner cavity; -a lubrication unit (26) comprising: a device housing (28) fixed and attached to the housing (22), at least one pump (29) located in the device housing (28) and comprising a rotor coupled to the gear train, and an oil inlet (31) connected to the pump (29); -an oil tank (27) comprising an oil outlet (34) connected to the oil inlet (31) of the lubrication unit (26), characterized in that the tank (27) is attached directly to the equipment housing (28) and arranged above the lubrication unit (26) such that oil flows into the lubrication unit (26) under the action of gravity.

A gas turbine engine includes a low pressure spool that connects a low pressure compressor to a low pressure turbine. The gas turbine engine further includes a high pressure spool that connects a high pressure compressor to a high pressure turbine. The gas turbine engine further includes a high pressure geartrain that is coupled in gear with the high pressure spool. The gas turbine engine further includes a low pressure geartrain that is coupled in gear with the low pressure spool. The gas turbine engine further includes an accessory gearbox that has an accessory drive gear that is selectively drivingly coupled at least one of the high pressure geartrain and the low pressure geartrain.

The application relates to an accessory drive housing (25) comprising: - a housing; - a transmission shaft (32; 32a); - a transmission system (40) comprising: a pinion (45) fixedly mounted on the transmission shaft and comprising an external toothing (45a); a ring gear (46) adapted to be connected to a drive shaft (27; 27a) of an accessory, and comprising internal teeth (48) meshing with external teeth (45a), such that a rotation of the pinion (45) relative to the housing (28) causes a rotation of the ring gear (46) relative to the housing; a nozzle (55) adapted to be driven in rotation relative to the housing and configured, when rotating, to expel lubricating oil; and an oil deflector (56) configured to guide the lubricating oil expelled by the nozzle (55) to the internal teeth (48) of the ring gear (46). Figure for the abbreviation: Fig. 6

A transmission assembly that delivers mechanical power during operation of a turbine engine. A transmission assembly for transmitting power within an aircraft. The transmission assembly includes a low pressure drive mechanism operably connected to the low pressure spindle, a high pressure drive mechanism operably connected to the high pressure spindle, an accessory drive mechanism operably connected to the accessory, and a differential operably connected to each of the low pressure drive mechanism, the high pressure drive mechanism, and the accessory drive mechanism. And a differential configured to operate in a first mode configured to transfer power from the accessory to one of the low-pressure and high-pressure spindles, a second mode configured to transfer power from one of the low-pressure and high-pressure spindles to the accessory, and a third mode configured to transfer power from one of the low-pressure and high-pressure spindles to the accessory, the third mode is configured to transfer power from the low pressure shaft to the high pressure shaft.

The invention relates to a turbomachine (1) comprising: - a casing (4', 12), - an accessory drive box (20) suspended and connected to the casing (4', 12) comprising a housing (22) defining an internal cavity, and a gear train arranged in the internal cavity, - a lubrication unit (26) comprising an equipment housing (28) attached and fixed to the housing (22), at least one pump (29) located in the equipment housing (28) and comprising a rotor coupled to the gear train, and an oil inlet (31) connected to the pump (29), and - an oil reservoir (27) comprising an oil outlet (34) connected to the oil inlet (31) of the lubrication unit (26), characterized in that the reservoir (27) is directly fixed to the equipment housing (28) and is placed above the lubrication group (26) so that the oil flows by gravity into the lubrication group (26). Abstract figure: 7

Tensioner for an accessory drive of a prime mover (2), the accessory drive (1) comprising at least a first pulley (11) connected to a drive shaft (12) of the prime mover (2), at least a second pulley (13) connected to an accessory (15) of the prime mover (2), and a belt (19) wound at least on the first pulley (11) and the second pulley (13), the tensioner (21) comprising: a base (22) configured to be fixed to a fixed support structure (23); at least a first arm (31) rotatable with respect to the base (22) about a first axis (A1); at least a first tensioning pulley (41) carried by the first arm (31) and rotatable with respect to the first arm (31) about a first pulley axis (PA1) parallel to the first axis (A1); elastic means (51) acting at least on the first arm (31) to push at least the first tensioning pulley (41) into contact with a respective span of the belt (19), wherein the base (22) comprises a base surface (71) configured to face towards said support structure (23) and at least one first appendage (81) extending from the base surface (71) and configured to abut against said fixed support structure (23), wherein the first appendage (81) has an extension in a direction parallel to the first axis (A1) dimensioned so as to define a predetermined distance (d) between a centre-line plane (P) of the first tensioning pulley (41) orthogonal to the first axis (A1) and said fixed support structure (23).

The application discloses a high-speed end front-mounted accessory transmission system and relates to the technical field of transmission systems, which comprises an accessory box body and an accessory transmission gear train arranged in the accessory box body. The accessory transmission gear train is provided with an accessory mounting interface. The accessory box body is independent of a high-speed end main box body and is fixedly suspended on the outside of the high-speed input end of the high-speed end main box body. The accessory transmission gear train comprises a first shaft train, a second shaft train and a third shaft train. The first shaft train comprises an input connecting shaft, an accessory large gear, an accessory small gear and a first bearing. The accessory large gear and the accessory small gear are coaxially fixedly connected to form a double gear structure. The application reduces the diameter of a low-speed end, is suitable for a long output shaft scene, suspends the accessory transmission box body in front of the high-speed input end, avoids setting accessory gears on the low-speed output end, and thus significantly reduces the radial size of the low-speed end box body.