140results about "Closed-circuit pressure lubricating systems" patented technology

The invention relates to a cooling and lubrication system (13) comprising a pump unit (35), a collection tank (20), and a dry sump (31), wherein the pump unit (35) functionally comprises at least one bilge pump (33, 34) and one feed pump (45). The at least one bilge pump (33, 34) is connected to the dry sump (31) on one suction side (37, 38) and to the collection tank (20) on one pressure side (41, 42), whereas the feed pump (45) is connected to a suction line (22) on one suction side (46), which is connected to the collection tank (20). Furthermore, a supply line (15) and a switching valve (49) are provided, the latter having a first working port (54), a second working port (53), and a third working port (52).The first working port (54) of the switching valve (49) is connected to the suction line (22), the second working port (53) of the switching valve (49) to a pressure side (47) of the feed pump (45), and the third working port (52) to the supply line (15). In the first switching position of the switching valve (49), the second working port (53) is connected to the first working port (54) and disconnected from the third working port (52), whereas in the second switching position of the switching valve (49), the second working port (53) is connected to the third working port (52) and disconnected from the first working port (54).

An engine and a vehicle comprising same. The engine comprises a main cylinder body (10), end covers (30), a timing cover (50), and an oil pan (60), wherein a left cylinder body (101) and a right cylinder body (102) of the main cylinder body are arranged in the left-right direction; the left cylinder body and the right cylinder body define a crankshaft cavity (20); the left cylinder body and the right cylinder body are each provided with a combustion chamber (11) extending in the horizontal direction; the end covers comprise a left cylinder cover (301) provided on the left side of the left cylinder body and a right cylinder cover (302) provided on the right side of the right cylinder body; the timing cover is located on one side of the main cylinder body and is fixed to at least one of the left cylinder body, the right cylinder body, the left cylinder cover and the right cylinder cover; the oil pan is arranged on the lower portion of the main cylinder body and is communicated with the crankshaft cavity.

The embodiment of the invention provides a cylinder cover assembly, a horizontally-opposed engine, a hybrid power assembly and a vehicle, the cylinder cover assembly comprises a body, an air flow channel and a cooling liquid channel are arranged in the body, and the body comprises a lower side and an upper side which are arranged in a deviating mode in the vertical direction; the airflow channel comprises an air inlet and an air outlet, the air inlet is formed in the lower side, and the air outlet is formed in the upper side; the cooling liquid channel surrounds at least part of the airflow channel and comprises a water inlet and a water outlet, the water inlet is formed in the lower side, and the water outlet is formed in the upper side. The air inlet of the airflow channel and the water inlet of the cooling liquid channel are formed in the lower side, and the exhaust port of the airflow channel and the water outlet of the cooling liquid channel are formed in the upper side, so that the influence of bubbles on cooling liquid flowing can be reduced, accumulation of the bubbles can be avoided, and the cooling effect of the cylinder cover assembly can be improved.

Disclosed herein is an integrated in-line emergency lube pump assembly for a planetary gearbox, including a main lube pump, a coaxial lube pump coaxially aligned with and coupled to the planetary gearbox, and an oil tank having a main section and an auxiliary section. There is no physical boundary between the main section and the auxiliary section of the oil tank. When the detected pressure in the oil supply line is equal to or exceeds a predetermined pressure threshold, the main lube pump operates to causes the main pump to pump oil from the main section of the oil tank to the planetary gearbox. Alternatively, when the detected pressure in the oil supply line is less than the predetermined pressure threshold the main lube pump ceases operation to cause the coaxial lube pump to draw oil from the auxiliary section of the oil tank to the planetary gearbox.

The double-layer oil pan lubricating system of the integrated air conditioner comprises an oil pan, an oil duct and a cooling system, the oil pan comprises an outer shell and an inner shell arranged in the outer shell, the inner shell is used for containing engine oil, the outer shell and the cooling system circulate for allowing cooling liquid to flow, and the cooling liquid in the outer shell is used for cooling the engine oil in the inner shell; engine oil in the inner shell flows to the oil duct, and the cooling system is used for cooling the cooling liquid. Due to the fact that a traditional engine oil cooler is omitted, the overall resistance of a lubricating system is reduced, the rotation displacement of the electronic engine oil pump can be further reduced, the overall size of the electronic engine oil pump is reduced, arrangement and installation are convenient, and the total shaft power of the electronic engine oil pump is also reduced.

The invention discloses an engine, a hybrid power assembly and a vehicle, the engine comprises a component to be subjected to oil return and an oil return pump assembly, the component to be subjected to oil return is provided with a plurality of oil return areas, and at least part of the oil return areas are located at the two opposite ends of the component to be subjected to oil return; the oil return pump assembly is provided with an oil return opening, and the oil return opening is connected with the oil return areas at the two opposite ends. Therefore, at least part of the oil return areas are arranged at the two opposite ends of the component to be subjected to oil return respectively, so that the oil return pump assembly can return oil to the component to be subjected to oil return from different positions, the oil return efficiency can be improved, oil return dead angles are eliminated, the oil return pump assembly is not prone to air suction, and then the operation stability of an engine is guaranteed.

The invention discloses an oil pan, an engine, a hybrid assembly and a vehicle, relates to the technical field of engines, and is used for solving the problem that in the prior art, a communication mode of a multi-cylinder engine and a cooling liquid pipeline is not beneficial to compactness and miniaturization of the engine. The oil pan is provided with a cooling liquid channel, a liquid outlet communicated with the cooling liquid channel is formed in the oil pan, and the liquid outlet is used for being communicated with a machine body.

The invention discloses an engine, a hybrid power assembly and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of non-uniform cooling of the engine. The engine comprises a first cylinder body, a second cylinder body, a first cylinder cover and a second cylinder cover. The first cylinder body and the second cylinder body are connected with each other and define a crankshaft cavity. The first cylinder cover is arranged on the side, away from the second cylinder body, of the first cylinder body, and the second cylinder body is arranged on the side, away from the first cylinder body, of the second cylinder body. The first cylinder body is provided with a first cylinder body cooling flow path, the first cylinder cover is provided with a first cylinder cover cooling flow path, the first cylinder body is provided with a first liquid inlet, the first cylinder body flow path comprises a first transition cavity and a first flow channel arranged in a cylinder hole of the first cylinder body, the first liquid inlet is communicated with the first transition cavity, and the first transition cavity is communicated with the first flow channel. The first cylinder cover is provided with a first cylinder cover cooling flow path, the first cylinder cover flow path is provided with a first liquid inlet, and the first liquid inlet communicates with the first transition cavity.

The invention discloses a marine supercharger lubricating system, which relates to the technical field of diesel engines and comprises a main oil supply path, a standby oil supply path and a pressure regulating oil return path which are communicated with an oil pan, a supercharger oil supply path communicated with a supercharger, a diesel engine oil supply path communicated with a diesel engine, a main oil supply path and a supercharger oil return path, the main oil supply way and the standby oil supply way are connected in parallel and communicated with the upstream of the main oil supply way, the supercharger oil supply way and the diesel engine oil supply way are connected in parallel and communicated with the downstream of the main oil supply way, and the pressure regulating oil return way is communicated with the main oil supply way. The main oil supply way is provided with a main lubricating oil pump, the standby oil supply way is provided with a lubricating oil standby pump, the pressure regulating oil return way is provided with a lubricating oil pressure regulating valve, and the supercharger oil supply way is provided with a throttling device. A bypass oil way is communicated between the supercharger oil supply way and the oil pan, and a bypass valve is arranged on the bypass oil way. Lubricating oil can be supplied to the diesel engine and the supercharger when the diesel engine and the supercharger work, pre-lubrication and post-lubrication of the supercharger can be considered, lubrication of the supercharger is good, and the service life is long.

The invention relates to a gearbox apparatus having at least one turbine gearbox arrangement and configured to provide a partial vacuum within the gearbox arrangement and comprising a vacuum pump, a vacuum oil tank, an oil pump coupled to the vacuum oil tank, and a plurality of valves; the system comprises a sensor unit and a control unit, the control unit is configured to control at least a vacuum pump and an oil pump respectively according to instantaneous sensor data, and the vacuum oil tank and at least one of the valves provide a switchable siphon device. A predefinable degree of vacuum in the interior volume is ensured by means of the vacuum pump and via the vacuum tank and by controlling the vacuum pump on the basis of the instantaneous sensor data. The invention also relates to a method for providing and maintaining a partial vacuum by means of such a gearbox device.

Oil supply system for an internal combustion engine (20) of a motor vehicle, with a main sump (16) for collecting engine oil, a secondary sump (12) for collecting engine oil, a first return line (28) opening into the secondary sump (12) for returning engine oil from combustion cylinders (22) of the internal combustion engine (20), a second return line (30) opening into the main sump (16) for returning engine oil passed through combustion cylinders (22) of the internal combustion engine (20) and through the internal combustion engine (20) and a conveying device (18) communicating with the main sump (16) and the secondary sump (12) for conveying engine oil to the internal combustion engine (20), wherein an internal combustion engine (20) having a combustion cylinder (22) is provided, wherein engine oil conveyed by the conveying device (18) for cooling and / or lubricating the combustion cylinders (22) in a first oil circuit (26) can be fed to the first return line (28) and engine oil conveyed by the conveying device (18) past the combustion cylinders (22) through the internal combustion engine (20) in a second oil circuit (27) can be fed to the second return line (30), characterized in that the internal combustion engine (20) has a crankshaft chamber (24) provided in the second oil circuit (27), wherein the conveying device (18) is designed to convey predominantly from the secondary sump (12) at least for the cold start of the internal combustion engine (20).

The embodiment of the invention provides an oil pump assembly, an engine lubricating system, an engine assembly and a vehicle. The oil pump assembly comprises: a housing; and the plurality of first oil pumps are arranged in the shell side by side. According to the engine oil pump assembly provided by the embodiment of the invention, the engine oil of the engine assembly can be recycled through the multiple first oil pumps, and effective oil return of the engine oil in the engine assembly can be achieved.

An integrated in-line emergency lubrication oil pump assembly for a planetary gearbox includes a main lubrication oil pump, a coaxial lubrication oil pump coaxially aligned with and coupled to the planetary gearbox, and an oil tank having a main section and an auxiliary section. No physical boundary exists between the main section and the auxiliary section of the oil tank. When the detected pressure in the oil supply line equals or exceeds a predetermined pressure threshold, the main lubricant pump operates to cause the main pump to pump oil from the main section of the oil tank to the planetary gearbox. Alternatively, when the detected pressure in the oil supply line is less than a predetermined pressure threshold, the main lubricant pump stops operating to cause the coaxial lubricant pump to draw oil from the auxiliary section of the tank to the planetary gearbox.

The present application relates to a kind of engine pre-oiling system and method, including main oil tank and auxiliary oil tank, main oil tank is sequentially connected with main oil passage by pipeline by oil pump;Auxiliary oil tank is connected with the outlet of oil pump by corresponding pipeline with main oil passage respectively, and the pipeline connected with the outlet of oil pump is equipped with first pre-oiling pump, and the pipeline connected with main oil passage is equipped with second pre-oiling pump, and heating device is equipped on auxiliary oil tank.By increasing auxiliary oil tank and the pipeline and oil pump matched, the oil passage pressure fluctuation when engine is started first or normally is used to inject lubricating oil into auxiliary oil tank, so that when the viscosity of engine oil is increased in low temperature environment, the lubricating oil in auxiliary oil tank can be heated by heating device and sent into main oil passage, to avoid the problem of dry grinding, lubrication and damage caused by the influence of oil viscosity in bearing region.

The present invention relates to gearbox arrangements exhibiting at least one turbo gearbox device and configured for providing partial vacuum within the gearbox device and comprising a vacuum pump, a vacuum oil tank, an oil pump coupled to the vacuum oil tank, and a plurality of valves; and comprising a sensor unit and a control unit configured for controlling at least the vacuum pump and the oil pump respectively depending on momentary sensor data, wherein the vacuum oil tank and at least one of the valves provide for a switchable siphon arrangement such that a predefinable vacuum level is ensured within the inner volume by means of the vacuum pump and via the vacuum oil tank and by controlling the vacuum pump depending on momentary sensor data. The present invention further relates to methods of providing and maintaining partial vacuum by means of such gearbox arrangements.

A power unit (1, 101) includes at least one drive source that outputs rotational power to a drive target other than pumps; a first pump (PI, P2) rotationally driven by the rotational power of the drive source; a second pump (P2, P3) rotationally driven by the rotational power of the drive source, the second pump (P2, P3) being different form the first pump (PI, P2); and a power transmission structure (21, 121) that transmits the rotational power of the drive source to the first and second pumps (PI, P2, P3). The power transmission structure (21, 121) includes transmission components and transmits the rotational power to the first pump (PI, P2) through one of the transmission components and to the second pump (P2, P3) through another of the transmission components.

An oil sump, an engine, a hybrid assembly, and a vehicle. The oil sump is provided with a coolant channel; the oil sump is provided with a liquid outlet in communication with the coolant channel; and the liquid outlet is configured to be in communication with an engine body.

A hybrid electric propulsion system for an aircraft is provided that includes a thermal engine, an electric motor, a gearbox, an electric power storage unit, a propulsion unit, and a controller. The thermal engine has a main oil pump configured to be driven by the thermal engine. The gearbox is in communication with the thermal and electric motors. The propulsion unit includes a propeller having propeller blades, and a pitch change mechanism. The controller is in communication with the thermal and electric motors, the propulsion unit, and a memory storing instructions. The instructions when executed cause the controller to control the electric motor to operate using electrical power from the electric power storage unit to cause the main oil pump to actuate and produce a flow of engine oil to the pitch change mechanism for a period of time sufficient to feather the propeller blades.

A measuring device for metering a fluid. The measuring device includes a container with the fluid, a fluid inlet which is fluidically connected to the container, a fluid outlet which is fluidically connectable with a metering point, a metering line which connects the fluid inlet with the fluid outlet, a delivery pump arranged in the metering line, a density sensor arranged in the metering line, a flow meter arranged in the metering line, and a recirculation line which is arranged to branch off from the metering line downstream of the flow meter and to open into the container. The flow meter is arranged in a measuring unit housing which is arranged at a distance from a pump unit housing in which at least the delivery pump is arranged. The pump unit housing is detachably connected to the measuring unit housing via a connection portion of the metering line.

The invention discloses an aircraft engine lubricating system and an aircraft, and relates to the field of aircrafts. An engine body is integrated with a first pump; the spacer is arranged in the oil storage tank, and the spacer and the bottom wall of the oil storage tank are spaced and jointly define an oil storage space; the first pipeline is connected between the engine body and the oil storage space, and one end of the first pipeline is located between the spacer and the bottom wall; the second pipeline is connected between the engine body and the oil storage tank. The second pump is arranged on the second pipeline. Therefore, by arranging the spacer, during weight loss, the spacer can block lubricating oil so that the lubricating oil can be stored in the oil storage space all the time, the first pump can conveniently and continuously suck oil through the first pipeline, the risk that the engine is damaged due to the fact that the lubricating oil is completely sucked is reduced, and the operation reliability of the engine is improved; lubricating oil in the oil pan can be pumped into the oil storage tank, and the risk of engine oil stirring loss caused by accumulation of the lubricating oil in the oil pan is reduced.

An internal combustion engine for a vehicle and a method for assembling an internal combustion engine. The engine includes a crankcase; a crankshaft disposed at least in part in the crankcase; a cylinder block connected to the crankcase, the cylinder block defining at least one cylinder; at least one piston operatively connected to the crankshaft and disposed in a corresponding cylinder; an oil tank defining an oil reservoir configured to contain oil therein; and a dry-sump lubrication system comprising a pump module for circulating oil throughout the engine. The pump module includes a pump shaft rotatable about a pump shaft axis; at least one pressure pump mounted to the pump shaft and configured to pump oil from the oil tank; and at least one scavenge pump mounted to the pump shaft and configured to draw oil from a respective part of the engine.

A hydraulic supply system (100), particularly for a drive motor (115) of a motor vehicle, comprises a reservoir (125) for hydraulic medium (110); a supply line (135) for providing hydraulic medium (110) from the reservoir (125) to a cooling or lubrication point (105), wherein hydraulic medium (110) exiting the cooling or lubrication point (105) is collected in a sump (150); and a bilge pump (130) configured to pump hydraulic medium (110) from the sump (150) into the reservoir (125). The pumping capacity of the bilge pump (130) exceeds the volume flow rate of medium (110) flowing through the supply line (135), enabling the bilge pump (130) to pump a mixture of hydraulic medium (110) and air.The storage tank (125) is designed as a pressure vessel whose internal pressure can exceed ambient pressure; and a compressed air motor (140) for driving the bilge pump (130) is provided, wherein the compressed air motor (140) is supplied with air from the storage tank (125).

The invention relates to a lubricant supply system for a motor vehicle and a pump for such a lubricant supply system. The lubricant supply system (44) comprises a dry sump (46), an oil tank (48), and a pump (2) for pumping oil (50) from the dry sump (46) into the oil tank (48) and for conveying the oil (50) out of the oil tank (48). The pump (2) comprises a housing (4), a drive shaft (14) extending in an axial direction (10), and at least three pump units (26, 28) arranged together on the drive shaft (14) in a row in the axial direction (10). The three pump units (26, 28) are each designed as a cycloidal rotor. This achieves a simple, compact, and inexpensive design.

The invention relates to a cooling and lubricating system (13) comprising a pump unit (35), a collecting tank (20), and a dry sump (31), said pump unit (35) at least functionally having at least one bilge pump (33, 34) and a delivery pump (45). The at least one bilge pump (33, 34) is connected to the dry sump (31) on each suction side (37, 38) and to the collecting tank (20) on each pressure side (41, 42), whereas the delivery pump (45) is connected to a suction line (22) on the suction side (46), said suction line being connected to the collecting tank (20). A supply line (15) and a switch valve (49) which has a first working connection (54), a second working connection (53), and a third working connection (52) are provided. The first working connection (54) of the switch valve (49) is connected to the suction line (22), the second working connection (53) of the switch valve (49) is connected to the pressure side (47) of the delivery pump (45), and the third working connection (52) is connected to the supply line (15). In a first switch position of the switch valve (49), the second working connection (53) is connected to the first working connection (54) and is separated from the third working connection (52), whereas the second working connection (53) is connected to the third working connection (52) and is separated from the first working connection (54) in a second switch position of the switch valve (49).

Fluid conveying system for supplying at least one machine unit (A) with fluid, in particular for supplying an engine and / or a transmission of a motor vehicle, comprising: a pump module (20, 30) for conveying the fluid, a drive (3) for driving the pump module (20, 30), and a housing (1) with a reservoir (11, 12) for storing the fluid, wherein the reservoir (11, 12) comprises at least one suction point and the pump module (20, 30) comprises a first inlet, a second inlet, a first outlet and a second outlet, and wherein the first inlet is fluidically connected to the reservoir (11, 12) via a first suction line (21) and the first outlet via a first pressure line (22;22a, 22b, 23a, 23b) is fluidically connected to the machine unit (A) and the second inlet is fluidically connected to the housing (1) via a second suction line (31) and the second outlet is fluidically connected to the reservoir (11, 12) via a second pressure line (32).;

The present invention discloses a multi-purpose oil pump sharing system and method of use. Multiple engines share two oil pumps, one for use and one for backup, achieving oil pump redundancy while reducing the number of engine-related pumps, their pipelines, and control devices. The control device is equipped with three self-resetting switches for lubricating oil pre-supply, waste oil discharge, and oil pan refueling, enabling switching and control of lubricating oil pre-supply, waste oil discharge, and oil pan refueling. The control device is equipped with a set of switches corresponding to each engine. Through the switch, the oil pump group can be used not only as a pre-supply pump for multiple engines, but also as a waste oil discharge pump and an oil pan refueling pump, thus achieving the multi-purpose use of the shared oil pump.