104results about "Closed-circuit pressure lubricating systems" patented technology

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 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 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.

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.

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.

A drive system (12) comprises an electric motor assembly (18) with an electric motor (20), a drive shaft (26), and a disconnecting clutch (30). The disconnecting clutch is designed to couple the drive shaft to a motor output shaft (16). The drive system further comprises a fluid system (40) with a cooling and lubricating fluid circuit (42) which is fluidly connected to a first pump (52), and a clutch actuation fluid circuit (60) which is fluidly connected to a second pump (58). The cooling and lubricating fluid circuit is fluidly connected to the clutch actuation fluid circuit via at least one of the respective pump output lines (62, 66) from the first pump and the second pump, or via the respective pump supply lines (64, 68) to the first pump and the second pump. An associated operating method is also disclosed.

A gearbox arrangement includes at least one turbo gearbox device and is designed to provide partial vacuum within the gearbox device. The gearbox arrangement includes a vacuum pump, a vacuum oil tank, an oil pump coupled to the vacuum oil tank, a plurality of valves; a sensor unit and a control unit which is designed to control at least the vacuum pump and the oil pump respectively depending on momentary sensor data. 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 invention discloses a filtering device, an engine and a vehicle, and belongs to the technical field of vehicle engineering. The oil storage container is provided with a first oil storage cavity and a second oil storage cavity; an oil pump; the oil suction mechanism is provided with an oil conveying port, a first oil suction port and a second oil suction port, the oil conveying port is connected with an oil inlet of the oil pump, the first oil suction port and the second oil suction port are connected with the first oil storage cavity and the second oil storage cavity respectively, the oil conveying port is communicated with the first oil suction port or the second oil suction port, and the first oil suction port and the second oil suction port are communicated with the first oil storage cavity and the second oil storage cavity respectively. The oil pump is arranged in the first oil storage cavity or the second oil storage cavity so as to suck oil from the first oil storage cavity or the second oil storage cavity; the filter is connected with an oil outlet of the oil pump; and the oil return mechanism is connected with the second oil storage cavity and the oil return port. According to the filtering device, the engine and the vehicle, the technical problems that the engine oil filtering performance of an engine is not ideal, and oil using parts are clamped and high in abrasion risk can be effectively solved.

A hydraulic supply system (100), in particular for a drive motor (115) of a motor vehicle, wherein the supply system (100) comprises the following elements: a reservoir (125) for hydraulic medium (110); a supply line (135) for supplying 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); 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), so that the bilge pump (130) can 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; the bilge pump (130) is designed to separate air from the pumped hydraulic medium (110), so that essentially air-free hydraulic medium (110) is pumped into the storage tank (125).

An engine, a hybrid powertrain, and a vehicle. The engine comprises: a component to be subjected to oil return and an oil return pump assembly, wherein said component is provided with a plurality of oil return regions, and at least some of the plurality of oil return regions are located at two opposite ends of said component; and the oil return pump assembly has an oil return port, which is connected to all the oil return regions at the two opposite ends.

A gearbox arrangement includes at least one turbo gearbox device and is designed to provide partial vacuum within the gearbox device. The gearbox arrangement includes a vacuum pump, a vacuum oil tank, an oil pump coupled to the vacuum oil tank, a plurality of valves; a sensor unit and a control unit which is designed to control at least the vacuum pump and the oil pump respectively depending on momentary sensor data. 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.

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.