62results about "Lubricant level maintainance" patented technology

Aircraft engine oil tanks, lubrication systems, and associated methods are provided. The oil tank includes a first tank portion defining a first volume for holding oil and a second tank portion defining a second volume for holding oil, in fluid communication with the first volume. The first tank portion includes an oil outlet for delivering oil to a lubrication load via a pump. The first volume is in fluid communication with a vent opening for venting the oil tank. At least part of the second tank portion is disposed higher than the vent opening for retaining a quantity of oil inside the oil tank during a negative-g force flight condition and facilitate the recovery of the lubrication system following the negative-g force flight condition.

Scavenge systems for a gas turbine engine including a valve positioned at a first drainage outlet of an enclosure to selectively open and evacuate liquid from the cavity through the first drainage outlet in response to the valve being submerged in liquid are provided. Methods of reducing suction of air from an enclosure of a cavity of a gas turbine engine are further provided.

An adjusting method for achieving automatic balance of lubricating oil in an oil pan of a marine diesel engine comprises the steps that firstly, an oil suction pipe and an oil supplementing pipe are installed in the oil pan, a pipe opening of the oil suction pipe is vertically upward and away from the bottom of the oil pan by a preset height, and a pipe opening of the oil supplementing pipe is close to the bottom of the oil pan; (2) installing a balance oil tank and connecting the balance oil tank with an oil pan through an oil suction pump and an oil recharging pump with the displacement smaller than that of the oil suction pump, (3) injecting lubricating oil into the balance oil tank and the oil pan, and (4) starting the oil suction pump and the oil recharging pump to work continuously at the same time when the diesel engine runs, and conveying the lubricating oil in the balance oil tank into the oil pan through the oil recharging pump; when the liquid level of the lubricating oil in the oil pan exceeds the height of the orifice of the oil suction pipe, the oil suction pump pumps the lubricating oil higher than the orifice of the oil suction pipe back to the balance oil tank from the oil pan, so that the liquid level of the lubricating oil is always kept at the height of the orifice of the oil suction pipe, and stable and automatic balance of the amount of the lubricating oil in the oil pan is achieved. The liquid level of the oil pan is kept dynamic and constant during working, the requirement of the diesel engine for lubricating oil is guaranteed, and the device has the advantages of being simple in structure, convenient to operate, capable of running automatically, safe and reliable.

A lubrication system of a gas turbine engine includes a lubricant reservoir with a housing having a volume of oil located therein. A reservoir passage extends through the housing. One or more side passages extend from the reservoir passage and are configured to selectably fill or drain the volume of oil. An output passage is separate and distinct from the reservoir passage, and a separator wall extends into the interior of the housing from the first housing wall toward the second housing wall and between the reservoir passage and the output passage. When the lubricant reservoir is in a first orientation, the lubricant reservoir is filled via oil flowed through the reservoir passage from the first housing end, and when operated in a negative G orientation, the lubricant reservoir is drained via oil flowed through the reservoir passage and out of the second housing end.

The invention discloses a crankcase reinforcing plate device which comprises a reinforcing plate, a plurality of lower grooves are formed in the reinforcing plate, and an oil return hole is formed in the center of each lower groove; and the receding surfaces are arranged on the two sides of the oil return hole and used for receding the movement envelope. According to the crankcase reinforcing plate device, the reinforcing plate is arranged, the strength of a crankcase is improved, the lower groove is formed, when a vehicle inclines, part of engine oil is left in the lower groove, it is guaranteed that the engine oil is stably pumped into an engine oil pump to lubricate engine parts, engine oil loss can be prevented, and the service life of the engine oil is prolonged. The reinforcing plate can be used for damping and separation, so that the part of engine oil is effectively prevented from flowing away from an oil suction port area too fast and too much, part of engine oil is trapped near the oil suction port, the lowest oil level state is maintained, and the reinforcing plate can also be used for damping and separation, so that the overall shaking amplitude and splashing height of oil in the oil pan are reduced; relative stability of the oil surface in the oil suction port area is kept, and air is prevented from being mixed into engine oil to form foam.

This application provides an engine cylinder block assembly, an engine, and a vehicle. The engine cylinder block assembly includes a cylinder block portion and a crankcase, wherein the cylinder block portion and the crankcase are integrally formed or fixedly connected. The side walls of the cylinder block portion and the crankcase have oil return channels that connect the cylinder head side of the cylinder block portion to the oil pan side of the crankcase. The side wall of the oil return channel has a first opening, and the side wall of the crankcase also has an oil return labyrinth that communicates with both the first opening and the inner cavity of the crankcase. The oil return labyrinth is configured to allow oil to flow through the labyrinth into the inner cavity of the crankcase when the oil level in the oil return channel exceeds a first threshold, and to prevent oil from entering the inner cavity of the crankcase when the oil level in the oil return channel is less than or equal to the first threshold. This engine cylinder block assembly ensures rapid oil return even when the engine is tilted at a large angle, preventing poor lubrication.

To lower an oil level of an oil pan by suppressing an oil amount to be returned to the oil pan and inhibit the oil amount in the oil pan from becoming excessively small without depending on a valve and a pump.SOLUTION: A lubrication device for an engine includes: an oil pan 2 provided in a lower part of an engine body 1; and a reservoir tank 3 provided at a position higher than the oil pan 2 to receive part of oil dropping down from the engine body 1. The reservoir tank 3 includes: an inner tank 4; an accommodation part 5 that covers the inner tank 4 while a gap is formed between the accommodation part and the inner tank 4; a first oil passage 6 for supplying oil from the engine body 1 into the inner tank 4; a second oil passage 7 provided in a bottom part of the inner tank 4 to discharge the oil in the inner tank 4 to the accommodation part 5; and a third oil passage 8 for supplying the oil in the accommodation part 5 to the oil pan 2. An oil passage cross sectional area of the second oil passage 7 is smaller than that of the first oil passage 6, and an oil passage cross sectional area of the third oil passage 8 is the same as that of the first oil passage 6.SELECTED DRAWING: Figure 1

To suppress excessive decrease of an oil amount in an oil tank.SOLUTION: A lubrication system for an internal combustion engine includes: a first passage 61 connecting inside of the internal combustion engine 20 and inside of an oil tank 50; a feed pump 71 provided in the first passage 61 and pressure-feeding oil from the oil tank 50 to the internal combustion engine 20; a second passage 62 connecting inside of the internal combustion engine 20 and inside of the oil tank 50; a scavenging pump 72 provided in the second passage 62 and pressure-feeding oil from the internal combustion engine 20 to the oil tank 50; a third passage 63 connecting a portion on the internal combustion engine 20 side viewed from the feed pump 71 and the second passage 62 in the first passage 61; a selector valve 73 for opening / closing the third passage 63; and a control device 90 for controlling the selector valve 73. When an amount of oil in the oil tank 50 is lowered to less than a prescribed value, the control device 90 switches the selector valve 73 to an open state.SELECTED DRAWING: Figure 1

The invention relates to a mechanical part (30) for an aircraft turbomachine, the mechanical part being made of metal and comprising at least one profiled surface (34) configured to ensure oil flow during operation. According to the invention, said surface (34) comprises a coating (40) that is more hydrophobic and / or lipophobic than the surface, or a surface texture (39) that renders said surface more hydrophobic and / or lipophobic. (Shorthand figure: Figure 4)

Fluid tray (1) for collecting liquids in a motor vehicle, with a housing (2) in which a partition wall (3) divides the interior (4) of the housing (2) into a collecting space (5) and a residual space (6), wherein at least one line (7) for conveying the liquid between the collecting space (5) and the residual space (6) is present in the partition wall (3), wherein an inlet (8) of the line (7) assigned to the residual space (6) is offset in the direction transverse to the force of gravity from an outlet (9) of the line (7) assigned to the collecting space (5), characterized in that the partition wall (3) is aligned substantially horizontally in the non-pivoted operating state.

The oil circulation arrangement includes a lower oil inlet portion, a filter unit (10) of a vehicle transmission filter, and an outlet (5) located higher than the inlet portion for immersion in the oil in the crankcase. The arrangement includes one or more valves (1) integrated into the inlet portion, each selectively allowing a flow of crude oil (F) when a float (2) provided in the valve is raised, releasing at least one shutter (21) movable according to the float's position. Access to the filter unit in the valve is thus opened when this float (2) is subjected to the buoyant force (Arch). A return element (20) is coupled to the access closure means, including the shutter, and prevents air from entering through this access, which, by the return effect without sufficient opposing buoyant force (Arch), remains closed. Figure from the summary: Figure 1

A lubrication system for an aircraft, the lubrication system comprising: a lubricating oil (LO) tank configured to operate at a first internal pressure; an intake chamber (IC) configured to operate at a second internal pressure greater than the first internal pressure, the IC comprising an inlet port configured to receive LO from a sump of a device of the aircraft; an overflow port in fluid communication with the LO tank; and a supply port in fluid communication with the sump and configured to supply LO to the sump.

The utility model discloses an engine oil baffle plate, which comprises an oil baffle plate main body, a plurality of reinforcing ribs are respectively arranged on the oil baffle plate main body close to the side edge, the reinforcing ribs are rectangular and are arranged along the length direction of the side edge of the oil baffle plate, and the reinforcing ribs are sunken downwards; a plurality of oil return holes are formed in the bottoms of the grooves of the reinforcing ribs in the length direction of the reinforcing ribs. The function of the oil baffle plate main body is similar to a barrier, and the oil baffle plate main body can block centrifugal force generated when the crankshaft rotates and prevent lubricating oil from being thrown out of a crankshaft box body. And the oil return hole in the oil baffle plate main body plays a role in guiding the lubricating oil to flow back. When the lubricating oil is thrown onto the oil baffle plate main body, the lubricating oil can flow back to an oil pan through the oil return hole, so that continuous lubrication and cooling of an engine are ensured. The reliability of an engine is improved, and the service life of lubricating oil is prolonged.

The invention relates to a turbomachine casing (10) configured to contain liquid, comprising, inside the casing, a liquid suction member (12) intended to suction liquid present in the casing under the action of a liquid pumping device.The suction device comprises a vertically oriented pendulum having two opposing ends, upper (12a) and lower (12b). The pendulum is mounted for rotation about a horizontal axis of rotation (14) attached to the housing (10) and passing through the upper end (12a). The pendulum is configured so that its center of gravity is located closer to the lower end (12b) than to the upper end (12a) of the pendulum, enabling it to orient itself vertically by rotation about the axis of rotation (14) under the effect of gravity when the housing is inclined at a radial angle relative to the axis of rotation of the pendulum. The pendulum includes a liquid suction point (12b1) located near the lower end (12b). (See Fig. 1 for abbreviations.)

The lubricating oil tank comprises a tank body provided with an oil storage cavity, a lubricating oil filling port and a ventilation port are formed in the upper portion of the tank body, a lubricating oil outflow port is formed in the lower portion of the tank body, and a transverse partition plate and a vertical partition plate which are connected with the inner wall of the tank body are arranged in the tank body. And oil through holes are formed in the transverse partition plate and the vertical partition plate in a penetrating manner. According to the scheme, the problem that in the prior art, a lubricating oil tank is prone to oil spilling is solved.

The application discloses an engine oil suction emptying prevention device and method, and relates to the field of engine oil suction emptying prevention devices.The engine oil suction emptying prevention device comprises an oil pump, an oil filter and a main oil passage, the oil filter is connected to an oil suction pipe inlet of the oil pump and is arranged below an oil liquid level in an oil pan, the main oil passage is connected to an oil suction pipe outlet of the oil pump, the oil filter is used for sucking the oil in the oil pan to the main oil passage under the action of the oil pump, at least one electromagnetic controller is arranged at a position close to the oil filter at the bottom of the oil pan, when the oil liquid level fluctuation exceeds a first preset value, the oil filter can adjust the position under the action of the electromagnetic controller, so that the oil filter is always below the oil liquid level, thereby preventing the engine oil from being sucked empty, and improving the service life of the engine.

A system is provided. The system includes a reciprocating engine configured to consume oil at or less than 0.25 g / kw-hr and use makeup oil. The reciprocating engine includes an engine oil sump. The system is configured to maintain the oil volume in the reciprocating engine during operation such that the residence time of the oil in the reciprocating engine is at or less than 1000 hours.

The present application provides an engine oil supply system and a vehicle, relating to the technical field of engine lubrication. The engine oil supply system includes an oil pan, an oil pump and a main oil pipe, and further includes: a main suction pipe for sucking the engine oil at the front end of the oil pan; a secondary suction pipe for sucking the engine oil at the rear end of the oil pan; a reversing solenoid valve for connecting the main oil pipe to the main suction pipe or connecting the main oil pipe to the secondary suction pipe; a controller for obtaining the tilt angle of the oil pan and controlling the reversing solenoid valve to enter a first state or a second state to supply engine oil according to the tilt angle; so as to ensure stable supply of engine oil in a large tilt angle state, and at the same time, it has the advantages of low cost, high degree of light weight, high reliability and strong working condition adaptability.

The invention is an oil sump system, having a housing, an oil pump capable of pumping oil, an inlet connected to the oil pump via a first piping; a second piping for recirculating oil pumped by the pump back to the housing for use in lubricating internal components housed by the housing, an oil sump fixture comprising a mesh screen; and an oil sump cover. The mesh screen may be positioned above the inlet such that when the oil level is lowered over a portion of the mesh screen when the system is subjected to a transient G-load, the surface tension created over the oil in the mesh maintains the level of the oil over the first portion at the mesh screen.

To provide an internal combustion engine control device capable of suppressing reduction in pressure of engine oil supplied to a hydraulic device when reducing a rotational speed of an internal combustion engine.SOLUTION: An internal combustion engine control device 10 controls an internal combustion engine 20 applied to a vehicle 100, the internal combustion engine comprising a dry sump type engine oil supply device 40 that supplies engine oil to a hydraulic device. When reducing a rotational speed of the internal combustion engine, the internal combustion engine control device increases an amount of gas suctioned into a cylinder 30 of the internal combustion engine.SELECTED DRAWING: Figure 2

A fluid delivery system includes a reservoir (6) for storing fluid, a rotary pump (5) having a first pump port (51) and a second pump port (52), a first fluid passage (1) connecting the first pump port (51) to the reservoir, and a second fluid passage (2) connecting the second pump port (52) to the reservoir. The rotary pump (5) rotates in a first delivery direction in a normal mode and in a second delivery direction in an alternative mode. When the rotary pump is in its alternative mode, a first valve (11) separates the first pump port (51) from the reservoir (6), and when the rotary pump is in its normal mode, a second valve (21) separates the second pump port (52) from the reservoir.

The lubricating oil pump capable of automatically adjusting the position of the suction port end comprises a lubricating oil pump body, a pump motor and a dynamic adjusting device, the lubricating oil pump body is arranged at the front end of a lubricating oil tank below a ship deck, the pump motor corresponds to the lubricating oil pump body and is arranged above the deck, and the dynamic adjusting device is arranged in the lubricating oil tank. The top of the dynamic adjusting device is communicated with an oil suction port in the bottom of the lubricating oil pump body below a deck, the bottom of the dynamic adjusting device is communicated with a redundant filter cartridge in a lubricating oil tank, and the side wall of the lubricating oil pump body is communicated with an oil outlet elbow which is communicated with an oil supply pipe after penetrating through the deck. It can be ensured that the suction port of the lubricating oil pump body is always above the lowest required liquid level, alarming is triggered when the suction port reaches the limiting position, dual protection of mechanical adjustment and electronic monitoring is achieved, and the operation reliability of the lubricating oil pump is improved.

Fluid supply system for supplying a machine assembly (A) with fluid, in particular for supplying an engine or transmission of a motor vehicle, wherein the fluid supply system comprises: a) a reservoir (6) for storing the fluid, b) a rotary pump (5) with a first pump port (51) and a second pump port (52), c) a drive (7) for driving the pump (5), d) a first fluid line (1) with a first valve (11) and a second fluid line (2) with a second valve (21), e) wherein the first fluid line (1) connects the first pump port (51) to the reservoir (6) and the second fluid line (2) connects the second pump port (52) to the reservoir (6), and f) the rotary pump (5) is operable in a normal operation in which the rotary pump (5) rotates in a first delivery direction and in an alternative operation in which the rotary pump (5) rotates in a second delivery direction.wherein g) in alternative operation of the rotary pump (5) the first valve (11) disconnects the first pump connection (51) from the reservoir (6) and in normal operation of the rotary pump (5) the second valve (21) disconnects the second pump connection (52) from the reservoir (6).

To provide an oil strainer which enables shortening of a rising time of hydraulic pressure without adding a component separately, and can maintain the shortened time without requiring maintenance of the oil strainer.SOLUTION: An oil strainer 2 is used in a passage from an oil pan 1d up to an oil pump 4 out of a lubrication oil circulation path for circulating the lubrication oil to a lubrication-target portion of an internal combustion engine 1. The oil strainer 2 has a suction port connecting portion 3a connected to a suction port 4a of the oil pump 4, an oil immersion portion 12 immersed into the lubrication oil 6 which is accumulated in the oil pan 1d, and a pipe portion 3 connected to the suction port connecting portion 3a from the oil immersion portion 12 while being bent. The pipe portion 3 has a bent portion 3d which is located above the suction port 4a of the oil pump 4 sucking the lubrication oil 6 from the oil pan 1d.SELECTED DRAWING: Figure 1

The invention discloses an engine oil supply system and a control method thereof and a vehicle, the engine oil supply system comprises an engine oil main pipeline, a first oil suction assembly and a second oil suction assembly, the first oil suction assembly is communicated with the engine oil main pipeline, and the second oil suction assembly is selectively communicated with the engine oil main pipeline; the first oil suction assembly comprises a first oil pump and a first oil collector, and a first oil suction opening of the first oil collector is formed in a first area of the bottom of the oil pan. Wherein the first area is close to the head of the target vehicle; the second oil suction assembly comprises a second engine oil pump, an electromagnetic valve and a second engine oil collector, a second oil suction port of the second engine oil collector is formed in a second area of the bottom of the engine oil pan, and the electromagnetic valve is used for controlling the opening and closing state of the second oil suction port and the communication state of the second engine oil collector and the engine oil main pipeline; wherein the second area is close to the tail of the target vehicle, and when the engine inclines or is under the limiting working condition, engine oil in the engine oil pan is gathered in the second area.

A lubricant container (1) for an internal combustion engine (2), comprising an intake port (8) arranged at an intake point (7) for sucking lubricant from the lubricant container (1), wherein a plurality of spaced-apart lubricant guide elements (10) are arranged in the lubricant container (1), each of which has, on its side facing the intake point (7), a lubricant receiving chamber (14) open in the direction of the intake point (7) and, on its side facing away from the intake point (7), lubricant guide surfaces provided on lubricant guide legs (12) extending from an apex (13) of the respective lubricant guide element (10) and inclined in the direction of the intake point (7), characterized in that the lubricant guide elements (10) extend at least on one side from a lubricant guide base (17),which is arranged in the lubricant container (1) at a distance from a lubricant container base (4) of the lubricant container (1) at least in some areas, wherein a lubricant container cover is present on a side of the lubricant container (1) or its interior (5) opposite the lubricant container base (4), wherein at least one lubricant line is formed in the lubricant container cover, which opens into the interior (5) of the lubricant container (1) via a lubricant line opening, wherein the lubricant line opening is arranged in overlap with a hollow lubricant guide dome (19), via which the lubricant line is fluidically connected to a partial area of the interior (5) present on the side of the lubricant guide base (17) opposite the lubricant line opening.

The utility model provides an engine oil liquid level control structure for a diesel engine, which relates to the technical field of generators and comprises an oil storage tank and a liquid level retainer, an oil outlet is arranged at the bottom of the oil storage tank, the liquid level retainer is provided with an oil inlet channel, an oil outlet channel and a liquid level switch, the oil inlet channel is used for being connected with the oil outlet, and the oil outlet channel is used for being connected with the liquid level switch. The position of the oil outlet is not lower than the position of the oil inlet channel, the oil outlet channel is used for being communicated with the bottom of an engine oil tank and enabling the liquid level in the liquid level retainer to be consistent with the liquid level in the engine oil tank, and the liquid level switch is used for controlling opening and closing of the oil inlet channel. And when the liquid level in the engine oil tank is lower than a set threshold value, the oil inlet channel is opened. Therefore, automatic supply of engine oil is achieved, and the problem that the engine oil liquid level of an existing diesel engine cannot be controlled in real time is solved.

Oil tank (10) of an internal combustion engine, wherein oil collected in the oil tank for lubrication and optionally cooling of the internal combustion engine can be removed from the oil tank, conveyed towards the internal combustion engine and then returned from the internal combustion engine into the oil tank, comprising a central oil chamber (11) open at the top, from which oil can be sucked in and conveyed towards the internal combustion engine; a first lateral, top-open oil chamber (17) which is positioned diagonally above or alternatively diagonally below the central oil chamber (11) depending on an inclined position of the oil container (10), and a second lateral, top-open oil chamber (18) which is positioned diagonally below or alternatively diagonally above the central oil chamber (11) depending on the inclined position of the oil container (10), wherein oil can be returned from the internal combustion engine into the first lateral oil chamber (17) and / or into the second lateral oil chamber (18); wherein the central oil chamber (11) is coupled to the first lateral oil chamber (17) and / or to the second lateral oil chamber (18) depending on the inclined position of the oil container (10); wherein the first lateral oil chamber (17) can be coupled to the central oil chamber (11) via a first connecting pipe (24) depending on the inclined position of the oil tank, and that the second lateral oil chamber (18) can be coupled to the central oil chamber (11) via a second connecting pipe (25) depending on the inclined position of the oil tank, wherein both connecting pipes interact with an oil pump and a three-way valve; characterized in that the pump and the three-way valve are controlled depending on the inclination of the oil tank, namely in such a way that that when the inclination of the oil tank is less than a limit value, the pump is switched off, that when the inclination of the oil container is greater than the limit value and the first lateral oil chamber (17) is arranged obliquely below the central oil chamber (11), the pump is switched on and furthermore the three-way valve assumes a switching position in which the pump conveys the oil from the first lateral oil chamber (17) via the first connecting pipe (24) into the central oil chamber (11), and that when the inclination of the oil container is greater than the limit value and the second lateral oil chamber (18) is arranged obliquely below the middle oil chamber (11), the pump is switched on and furthermore the three-way valve assumes a switching position in which the pump conveys the oil from the second lateral oil chamber (18) via the second connecting pipe (25) into the middle oil chamber (11).

The utility model belongs to the technical field of engine accessories, and provides a lubricating structure of an engine, which comprises an engine main body, an oil pan and an oil storage chamber cover, the oil pan is detachably mounted at the bottom of the engine main body, the oil storage chamber cover is detachably mounted on one side of the engine main body, and an oil storage chamber is formed on the side portion of the engine main body. A bearing part for bearing lubricating oil is arranged on the oil pan, a high-pressure oil pump and an oil scavenger pump are arranged on the engine body, input ports of the high-pressure oil pump and the oil scavenger pump are communicated with the bearing part, an output port of the oil scavenger pump is communicated with the oil storage chamber, and an oil outlet hole of the high-pressure oil pump is connected with a high-pressure runner on the engine body. The heat dissipation area of the oil storage chamber can be increased, it is guaranteed that the heat dissipation speed of lubricating oil is high, the problem that when the engine body inclines, a high-pressure oil pump cannot pump the lubricating oil can be solved, and it is guaranteed that all parts of the engine body can be fully lubricated and cooled under various road conditions.

A lubrication system for a machine such as a mobile generator, a mobile light tower, or a mobile jobsite heater implements an engine oil supplementation strategy from an auxiliary sump to increase service time between engine oil servicing tasks of an internal combustion engine. The system periodically introduces a supplemental volume of oil from an auxiliary sump into the engine's lubricating system during an oil supplement event.. The fluid communication between the engine sump and auxiliary sump may be achieved through multiple sump connections, which may include a sump-to-sump return line that provides a liquid connection allowing oil to freely flow between the engine sump and the auxiliary sump and a vent line that provides a gaseous connection between a void space at an upper end of the auxiliary sump and a void space at an upper end of the engine sump.