Abstract: A transmission for a motor vehicle includes a housing and a gear set. An oil drainage channel is formed by the housing and/or by an element connected to the housing and is arranged spatially underneath the gear set. The oil drainage channel includes at least one gear set-side inlet port, a closed underside, and an oil sump-side outlet port at one end of the oil drainage channel, which are designed and arranged in such that oil from the gear set enters the oil drainage channel through the at least one inlet port and is guided along the closed underside to the outlet port. A suction port of a hydraulic unit of the transmission is arranged in the oil sump spatially underneath the closed underside of the oil drainage channel and axially offset with respect to the outlet port.

Abstract: There is provided a work machine. A reserving chamber reserves lubricating oil to be supplied to an engine. A channel forming member forms a channel of the lubricating oil from the reserving chamber to the engine A press-feed unit press-feeds the lubricating oil reserved in the reserving chamber to the engine via the channel forming member. A float floats on an oil surface of the lubricating oil reserved in the reserving chamber A detection unit provided in the reserving chamber and detects the float A determination unit determines a tilt state of the reserving chamber based on a detection result of the detection unit A control unit controls the press-feed unit based on a determination result of the determination unit.

Abstract: A nacelle bottom cover part (32) for the underside of a wind turbine nacelle is formed with a number of shallow receptacle regions for containing liquid leaked or spilled from turbine components. Overflow channels (88,90,92) may be provided between the receptacle regions so that leaked liquid can flow between receptacle regions.

Abstract: An example of an emergency lubrication system for an aircraft includes a lubricant tank configured to supply a lubricant to a gearbox of the aircraft, a tube coupled between the lubricant tank and the gearbox and comprising a check ball disposed within the tube, a first lubricant line coupled to the tube and a first inlet of the gearbox, and a second lubricant line coupled to the tube and a second inlet of the gearbox.

Abstract: A vehicle drive-force transmitting apparatus including: a casing; a drive-force transmitting mechanism disposed in the casing; and first and second oil pumps configured to suck, through respective inlet ports thereof, oil stored in a bottom portion of a casing, such that the drive-force transmitting mechanism is lubricated by the oil pumped up by the first and second oil pumps. The casing is provided with a drain hole through which the oil stored in the bottom portion of the casing is to be discharged to an exterior of the casing. A position of opening of the inlet port of the first oil pump is lower than a position of a lower end of the drain hole, and a position of opening of the inlet port of the second oil pump is higher than the position of the lower end of the drain hole.

Abstract: Systems, apparatus, and methods are disclosed that include an internal combustion engine having a lubrication system with an upper storage reservoir for receiving lubrication fluid from the internal combustion engine. The upper storage reservoir maintains a supply of lubrication fluid to a lower storage reservoir even while the internal combustion engine is inclined due to operation along severe grades. The lower storage reservoir supplies fluid for circulation to the internal combustion engine.

Abstract: The present invention discloses an engine oil supply system, which includes an oil pan for storing lubricating oil. An oil suction pipe is disposed in the oil pan, the oil suction pipe is twisted in the oil pan, and at least two oil suction portions are disposed on the oil suction pipe, so that at least one oil suction portion is below a lubricating oil level when the engine is in any position. The technical solution disclosed by the present invention can ensure that the lubricating oil can enter each part of the engine for lubrication through the oil supply system when the engine is used either in a leant or inverted manner.

Abstract: According to the present disclosure, a gas turbine assembly includes a gas turbine engine and a gearbox. The gearbox includes a lubrication system including a first sump and a second sump. The lubrication system is configurable to use either of the first and second sumps to correspond to various configurations of the gas turbine assembly.

Abstract: An example method of deaerating a mixture of fluid and air includes communicating a mixture of fluid and air directly against a wall of a reservoir to separate the fluid from the air. The method reuses the fluid held within the reservoir after the separating.

Abstract: A vehicle axle includes a housing defining a sump, a gear assembly and a baffle. The gear assembly includes a ring gear disposed within the housing. The ring gear is configured to pump fluid throughout the housing. A pinion gear is meshed with the ring gear. The baffle is disposed within the sump and connected to the housing. The baffle has a first part being configured to control fluid flow across the ring gear and a second part attached to the first part. The second part is configured to control fluid flow across the pinion gear.

Abstract: A bi-directional auxiliary lubrication system which allows lubricant to be supplied to moving engine components after a loss of lubricant pressure from a main lubricant tank is disclosed. In a gas turbine engine, the lubrication system may siphon compressed air from a compressor to draw lubricant from a reserve lubricant tank and deliver that lubricant to the engine components. The same conduits used by the lubrication during normal operations are utilized in an opposite direction to provide the flow of lubricant from the reserve lubricant tank during such auxiliary or low-lubricant-pressure operations.

Abstract: A baffle plate structure includes an oil pan, an oil pump, a baffle plate, and a resin oil strainer. The baffle plate is to separate an interior of the oil pan into a crank case side and a oil chamber side. The resin oil strainer includes an inlet portion and a parallel portion. The inlet portion extends toward a bottom surface of the oil pan. The inlet portion has an inlet port for lubricant at a lower part of the inlet portion. The parallel portion extends from the inlet portion in a direction substantially parallel to the baffle plate to introduce the lubricant from the inlet portion to the oil pump. The baffle plate has an opening corresponding to the parallel portion of the resin oil strainer. The parallel portion of the resin oil strainer is disposed so as to close the opening.

Abstract: A pressurized backup lubricant reservoir (36) with a lubricant line (31) to a rotor bearing (21). A control valve (43) on the backup lubricant line is normally closed. A monitor/controller (44) monitors multiple parameters of the bearing, and initiates an emergency protection sequence under combinations of conditions, including when a temperature of the bearing exceeds a threshold and a flow rate or pressure of a primary lubricant is outside a normal range and the rotor is rotating. The emergency protection sequence initiates a shut-down procedure for the rotor, and opens and modulates the control valve to meter a backup lubricant (33) from the backup reservoir to the bearing in proportion to a rundown rate of the rotor, such that lubrication of the bearing from the backup lubricant reservoir continues until the rotor stops turning. The protection sequence may also include coordinating braking of the rotor with the backup lubricant flow.

Abstract: The tank for a turbine engine comprises a partition separating a first compartment from a second compartment of the tank , the partition having a first end and a second end, the second end being closer to the bottom of the tank than the first end, the partition being inclined from the first end to the second end in the first direction and in the direction of the first outlet to the second outlet , the partition comprising at least one first Through-hole near the first end and at least one second through-hole closer to the second end than the first hole.

Abstract: A rear wheel driving apparatus (1) includes: a first right-left communication passage (FP) through which a left reservoir (RL) and a right reservoir (RR) are communicated with each other; and a second right-left communication passage (SP) which is provided in parallel with the first right-left communication passage (FP) and through which the left reservoir (RL) and the right reservoir (RR) are communicated with each other. Thus, flowability of a liquid fluid stored in a case (11) is enhanced, and smoothing of a fluid level is enabled.

Abstract: An oil strainer for a vehicle transmission includes a body case, a suction port member, a suction port, and a connection tube. The body case contains a filtering member. The suction port member is separated from the body case. The suction port is provided in the suction port member. The connection tube has flexibility or stretchability and connects the body case to the suction port member. The connection tube has a structure which is bent or which is expanded and contracted to allow the suction port member to move while following a change in an oil surface of oil in a transmission casing of the vehicle transmission so that the suction port is not exposed at the oil surface when a position of the oil surface varies due to lean of a vehicle or acceleration/deceleration applied to the vehicle.

Abstract: Gas turbine engines systems and methods involving oil flow management are provided. In this regard, a oil pressure analysis system for a gas turbine engine is operative to: receive information corresponding to measured oil pressure and rotational speed during a start up of the engine; correlate the information into data sets, each of the data sets containing a measured oil pressure and a corresponding rotational speed; and determine whether the oil flow valve is functioning properly based on the information contained in the data sets.

Abstract: An automatic transmission of a motor vehicle driven by an internal combustion engine with a transmission oil circuit, a main oil pump, mechanically driven by a combustion engine, and an auxiliary oil pump (1) that can be electrically driven and is located inside an oil sump (4). It is proposed that the auxiliary oil pump (1) is arranged transversely with respect to the travel direction (x) of the motor vehicle.

Abstract: An oil supply system for a gearbox in a gas turbine engine includes a holding container which holds a quantity of oil to be delivered to a pump. The holding container includes a flexible barrier.

Abstract: A lubrication system includes an auxiliary lubricant tank 48, a supply conduit 58 extending from a source of lubricant 26 to the auxiliary lubricant tank. A reduced-G bypass line 108 branches from the conduit and enters the auxiliary tank at a first elevation E1. The system also includes an auxiliary tank discharge conduit 116, a portion of which resides within the tank. The resident portion has an opening 122 at least partially at a second elevation E2 higher than the first elevation.

Abstract: In an oil suction system for drawing up oil stored in an oil reservoir through a strainer, the oil reservoir is constructed such that, when the liquid surface of the oil is inclined due to movement of the stored oil, the level of the liquid surface close to the suction port varies in accordance with a plurality of directions of inclination of the liquid surface, and the level of the liquid surface close to the suction port is lower in a particular direction as one of the directions of inclination of the liquid surface than those in the other directions of inclination, and an inflow resistance portion is provided at a lowered liquid-level side of the suction port on which the liquid level is lowered when the oil surface is inclined in the particular direction, for increasing the resistance to flow of the oil from the lowered liquid-level side toward the suction port, to be larger than the resistance to flow of the oil from a raised liquid-level side of the suction port on which the liquid level is raised due t

Abstract: A lubrication and scavenge system for a gas turbine, capable continued operation in nose-down or nose-up orientations, has a number of oil drainage passages to return oil to one or more collection chambers adjacent a rolling element bearing. A rotary impellor in the chamber forces the oil into a scavenge off-take passageway in the chamber wall leading to a scavenge pump. However, in some orientations windage effects in the chamber can return the oil to the drainage passage rather than permitting the impellor to centrifuge it into the off-take passageway. As a result oil starvation may occur. To avoid this and improve scavenging a shield is located between the drainage path and the off-take passageway adjacent to a face of the impellor. The shield may comprise an additional member, but preferably is formed integrally with a bearing race so as to ease assembly.

Abstract: A lubrication system includes an auxiliary lubricant tank 48, a supply conduit 58 extending from a source of lubricant 26 to the auxiliary lubricant tank. A reduced-G bypass line 108 branches from the conduit and enters the auxiliary tank at a first elevation E1. The system also includes an auxiliary tank discharge conduit 116, a portion of which resides within the tank. The resident portion has an opening 122 at least partially at a second elevation E2 higher than the first elevation.

Abstract: An oil scavenge system includes a scavenge pipe which extends forward into a relatively long and narrow compartment area of a rear bearing compartment of a gas turbine engine with aggressive core size constraints. The scavenger pipe communicates collected oil to a scavenger pump to return oil to the oil sump and evacuate the oil before flooding of the seals may occur.

Abstract: The invention relates to a control device for lubrication systems, having a control processor which is arranged in a housing, having connections, which are formed on the housing, for sensor inputs and control outputs, which are connected to the control processor, and having an operator interface which is secured to the outside of the housing and is intended to input control parameters. Provision is made for the control processor to be set up with different control programs for different lubrication systems and for program switches for selecting the different control programs to be arranged inside the housing.

Abstract: Disclosed is a pressurized internal oil management system, comprising an oil dam, at least one oil separator, at least one oil collection manifold, at least one oil pump, and one or more paths for returning the separated oil; said system integrated within the casing of a fluid displacement device to supply adequate lubrication regardless of orientations under zero to full gravity, and methods and applications related thereto. Fluid displacement devices useful herein include oil lubricated rotary or reciprocating machinery, such as compressors, expanders, pumps and engines, in the casing of which exists one or more drive mechanisms that can be utilized to operate the oil management system, in most cases without even increasing the size of the casing.

Abstract: A system and method for controlling the rotational speed of a gas turbine engine in an aircraft includes appropriate devices and processes for determining a pressure of lubricant supplied to the turbine engine, and for determining a maneuver state of the aircraft. The rotational speed of the gas turbine engine is controlled based at least partially on the determined pressure and the determined maneuver state. Thus, if the aircraft is in a maneuver state that may cause a reduction or loss of lubricant to the gas turbine engine, the rotational speed of the gas turbine engine can be reduced to a magnitude sufficient to increase turbomachine tolerance to the reduced or no lubricant flow.

Abstract: A dynamic engine oil pickup system is disclosed. The dynamic engine oil pickup system includes a scavenge pump and a pickup tube assembly in fluid communication with the scavenge pump. The pickup tube assembly includes at least two oil pickup portions operable to pickup engine oil from at least two different oil pickup locations and a flow control operable to control a flow of engine oil between the at least two different oil pickup locations and the scavenge pump. The flow control includes a suction valve, and movement of the suction valve is controlled by selectively applying a high pressure oil to a head of the suction valve.

Abstract: A lubrication and scavenge system for a gas turbine, capable continued operation in nose-down or nose-up orientations, has a number of oil drainage passages to return oil to one or more collection chambers adjacent a rolling element bearing. A rotary impellor in the chamber forces the oil into a scavenge off-take passageway in the chamber wall leading to a scavenge pump. However, in some orientations windage effects in the chamber can return the oil to the drainage passage rather than permitting the impellor to centrifuge it into the off-take passageway. As a result oil starvation may occur. To avoid this and improve scavenging a shield is located between the drainage path and the off-take passageway adjacent to a face of the impellor. The shield may comprise an additional member, but preferably is formed integrally with a bearing race so as to ease assembly.

Abstract: A gravity controlled lubrication system for aircraft engines to supply a lubricant from a tank to a circulating system permitting lubricant to flow when the aircraft changes to an inverted flight condition.

Abstract: An oil lubricating structure includes a main body case having a housing chamber in which an element requiring a supply of oil is housed, an oil reservoir which is provided below the main body case and has an oil chamber in which oil collects, an oil supply portion which has an inlet port through which oil is drawn in from the oil chamber and which supplies oil collected in the oil chamber to the element requiring a supply of oil through the inlet port, and a duct member provided in the oil chamber. An oil return hole is provided which is formed in a bottom surface of the main body case toward the front of the oil reservoir and through which oil returns to the oil reservoir from the main body case. One end portion of the duct member is connected to the oil return hole and the other end portion of the duct member is positioned farther to the rear than the inlet port.

Abstract: In an oil suction system for drawing up oil stored in an oil reservoir through a strainer, the oil reservoir is constructed such that, when the liquid surface of the oil is inclined due to movement of the stored oil, the level of the liquid surface close to the suction port varies in accordance with a plurality of directions of inclination of the liquid surface, and the level of the liquid surface close to the suction port is lower in a particular direction as one of the directions of inclination of the liquid surface than those in the other directions of inclination, and an inflow resistance portion is provided at a lowered liquid-level side of the suction port on which the liquid level is lowered when the oil surface is inclined in the particular direction, for increasing the resistance to flow of the oil from the lowered liquid-level side toward the suction port, to be larger than the resistance to flow of the oil from a raised liquid-level side of the suction port on which the liquid level is raised due t

Abstract: A lubrication system is provided for an aircraft turbine machine, the lubrication system being controlled by a closed-loop logic arrangement, wherein the oil pressure of a lubricant circulated therein is monitored and altered according to attitude data, acceleration data, operating mode data, or some combination thereof contained in a signal received from an airframe flight controller and according to a oil pressure signal and an oil temperature signal. The logic responsively provides a supply pump speed control signal, according to a predetermined target oil pressure value selected to correspond to the data contained in the signals. The target value may be continuously compared to the present oil pressure value and the present oil pressure adjusted by sending a motor control signal to the supply pump and a valve flow control signal to a flow control valve that conditionally allows oil from the outlet side of the supply pump to be fed back to its inlet side.

Abstract: A rotary cutting machine 10, if inclined at large angles, provides positive supply of a cutting oil and avoids leakage of the cutting oil. The machine 10 has a machine body 14 and an arbor 18. An oil tank 50 is mountable to the machine body 14 so that the oil tank 50 is oriented at a given angular position about the central axis of the arbor 18. The tank body 54 has an interior space. The interior space is divided into a first interior part and a second interior part by an imaginary plane containing the central axis of rotation of the arbor. The first interior part is less in volume than the second interior part.

Abstract: An oil scavenge system includes a scavenge pipe which extends forward into a relatively long and narrow compartment area of a rear bearing compartment of a gas turbine engine with aggressive core size constraints. The scavenger pipe communicates collected oil to a scavenger pump to return oil to the oil sump and evacuate the oil before flooding of the seals may occur.

Abstract: Disclosed is a pressurized internal oil management system, comprising an oil dam, at least one oil separator, at least one oil collection manifold, at least one oil pump, and one or more paths for returning the separated oil; said system integrated within the casing of a fluid displacement device to supply adequate lubrication regardless of orientations under zero to full gravity, and methods and applications related thereto. Fluid displacement devices useful herein include oil lubricated rotary or reciprocating machinery, such as compressors, expanders, pumps and engines, in the casing of which exists one or more drive mechanisms that can be utilized to operate the oil management system, in most cases without even increasing the size of the casing.

Abstract: The oil pan includes an oil introducing portion that has an oil introducing plate. The oil introducing plate has an insertion hole for receiving a sucking portion of an oil strainer. The oil introducing plate extends from the periphery of the insertion hole toward a side wall of the oil pan. The oil returned from the first oil return passage is introduced to flow along the oil introducing plate via an oil falling hole formed in a baffle plate that is positioned at the bottom of a crank case of the internal combustion engine. The oil introducing portion further includes a plurality of inclined wall portions mounted on a bottom portion of the oil pan in the vicinity of the side wall of the oil pan in order to support the oil introducing plate. Opening portions are formed between the inclined wall portions and the bottom portion of the oil pan. The oil introducing plate of the oil introducing portion is located just below the oil falling hole formed in said baffle plate.

Abstract: A final drive unit for a motor vehicle includes a carrier housing integrally formed with a final drive housing and provided to store a lubricating oil therein, a pinion drive shaft rotatably supported within the final drive housing by a pair of bearings, an oil supply passage formed integrally with the final drive housing for lubricating the bearings and having a supply opening in communication with a cavity in the carrier housing, and a baffle member mounted within the carrier housing adjacent to the supply opening of the oil supply passage. The baffle member includes a baffle wall provided to cover a lower portion of the oil supply passage for maintaining a portion of the lubrication oil within the oil supply passage so as to permit the lubricating oil to adequately lubricate the bearings even when the motor vehicle is tilted to a maximum angle of inclination.

Abstract: A final drive unit for a motor vehicle includes a carrier housing integrally formed with a final drive housing and provided to store a lubricating oil therein, a pinion drive shaft rotatably supported within the final drive housing by a pair of bearings, an oil supply passage formed integrally with the final drive housing for lubricating the bearings and having a supply opening in communication with a cavity in the carrier housing, and a baffle member mounted within the carrier housing adjacent to the supply opening of the oil supply passage. The baffle member includes a baffle wall provided to cover a lower portion of the oil supply passage for maintaining a portion of the lubrication oil within the oil supply passage so as to permit the lubricating oil to adequately lubricate the bearings even when the motor vehicle is tilted to a maximum angle of inclination.

Abstract: A device for lubricating a power gearbox having a variable orientation and a closed space has a lubricating unit that supplies lubricant to at least one element of the gearbox, which needs to be lubricated. A collecting reservoir collects lubricant from the closed space. A drain screw chamber, within the closed space, has a number of orifices disposed between different zones of the closed space and the drain screw chamber for passing lubricant there between. At least one rotary drain screw, which is produced in the form of an Archimedean screw, is disposed in the drain screw chamber to convey the lubricant from the drain screw chamber to the collecting reservoir. A drive unit drives the drain screw in rotation for conveying the lubricant. The orifices open respectively different zones of the closed space to the drain screw chamber such that the drain screw chamber can always collect lubricant from the different zones regardless of the orientation of the gearbox.

Abstract: A lubricating apparatus, for a friction engagement element that engages a rotatable member with a case includes a hub connected to the rotatable member, friction members disposed between the hub and the case, a hydraulic servo for engaging the friction members, and an oil passage for supplying lubricant from the case to the friction members. A discharge opening of the oil passage is formed at a position which is radially inward of the friction members and which is axially to a side of the friction members. The discharge opening is directed toward the friction members. A weir member for restricting escape of lubricant in the axial direction through a gap between the hub and the friction members is provided at the other axial side of the friction members. Therefore, the axial escape of lubricant exiting the friction members can be prevented by a non-contact leakage restriction that does not cause drag resistance.

Abstract: An oil system is provided having a first inlet (20) for receiving oil from a fist source, such as a generator, and a second inlet (32) for receiving oil from other oil systems. A scavenge pump (14) has a manifold (26) arranged such that oil is preferentially pumped from the first inlet.

Abstract: An oil feeding device for vehicles is disclosed. This oil feeding device is designed to draw oil from an oil pan through a plurality of suction branch pipes placed in depressions formed at the corners of the oil pan's bottom. Therefore, the oil feeding device reliably feeds a desired quantity of lubrication oil from the oil pan to the desired parts of a vehicle, such as the parts of a transmission, even when the oil level inside the oil pan is below a predetermined level due to consumption of oil, or excessive incline by the leaning of oil to one side due to inclination of a vehicle running on a slope.

Abstract: An oil reservoir chamber, a crank chamber and a valve-operating chamber are provided in an engine body. The oil reservoir chamber and the crank chamber are in communication with each other through a through-hole, and the crank chamber and the valve-operating chamber are in communication with the each other through a one-way valve which is opened upon rising of the pressure in the crank chamber. The valve-operating chamber and the oil reservoir chamber are in communication with each other through an orifice. By utilizing a pressure pulsation in the crank chamber, an oil mist produced in the oil reservoir chamber is circulated from the oil reservoir chamber to the crank chamber, the valve-operating chamber and the oil reservoir chamber. Thus, in any operational attitude of an engine, the lubricating oil can be circulated without use of special oil pump.

Abstract: Device for lubricating a power gearbox which has variable orientation, particularly for a convertible tilt-rotor aircraft.

Abstract: An oil system is provided for use with a rotating machine, for example an aircraft generator and associated transmission. The oil system allows the generator to be run without lubrication for a short period of time. Such a situation is likely to occur when the aircraft is inverted or experiences zero G conditions.

Abstract: A four-stroke cycle internal combustion engine comprises a connecting rod which has an oil dipper at a big-end thereof, a crankcase, a partition wall which surrounds the connecting rod to provide a separation between the crankcase and an oil reservoir and an outer wall which is outward of and surrounds the partition wall and is connected to the partition wall at upper ends thereof so as to define the oil reservoir below the crankcase. A slit is formed in the partition wall below the connecting rod to allow the oil dipper to protrude into and be withdrawn from the oil reservoir to splash oil in the oil reservoir for lubrication by the oil dipper through a swinging motion of the connecting rod. The depth of the oil reservoir is shallower at least in a part of an outer edge area thereof than that below the oil dipper so that a tip of the oil dipper reaches the oil level even when the oil flows into the outer edge area of the oil reservoir.

Abstract: A lubricating device for four-stroke engine consists of a cylinder block, a crankcase, an oil sump, a piston, a crankshaft, a connecting rod and an oil dipper, the crankcase contains an upper crankcase body and a lower crankcase body, the bottom of the crankcase extends downward to form an oil trough with a hole in it, an oil dipper is able to operate in the oil trough, an oil box is formed for oil containing by the lover crankcase body and the oil sup, when an engine is running on a normal inclination, a shall amount of oil can only get into the oil trough through three hole in it, movement of the oil dipper atomizes the oil to provide lubrication, if the engine is running on an abnormal inclination or bumping condition, oil will not flow into the crankcase, and this design is able to ensure nor-al operation of an engine on any inclinations.

Abstract: An improved lubricating device for a four-stroke engine which permits the engine to operate upside down for a longer time and which has a better lubricating effect. This device comprises a first partitioning portion dividing the lubricating oil reservoir into a first and a second chambers, and a second partitioning portion further dividing the second chamber into a first and a second sub-chambers. The first partitioning portion includes a concave portion, having an opening for communicating the first chamber with the second chamber, which is adapted to receive some lubricating oil. Also, the first partitioning portion is provided thereon with a check valve which allows irreversible flow of the lubricating oil mist between the first chamber and the second sub-chamber.