75results 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.

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.

Vehicles, oil intake systems for vehicles, and methods for manufacturing oil intake systems for vehicles are provided. A method for manufacturing an oil intake system for a vehicle includes providing an oil reservoir having an internal volume with an internal shape including an oil reservoir bottom; determining a selected amount of oil received in the oil reservoir; selecting a maximum positive pitch angle of a first plane of an upper surface of the selected amount of oil in the oil reservoir; selecting a minimum negative pitch angle of a second plane of the upper surface of the selected amount of oil in the oil reservoir; determining a bottom plane at a selected positive distance above the oil reservoir bottom; determining a shape and a size of an oil pick-up tube and of an opening in the oil pick-up tube to locate the opening below the first plane at the maximum positive pitch angle and below the second plane at the minimum negative pitch angle, wherein the opening is defined by a peripheral edge of the oil pick-up tube, wherein the peripheral edge lies substantially within an opening plane, wherein the opening plane has a positive pitch angle of at least half of the maximum positive pitch angle; and fabricating the oil pick-up tube with the shape, the size, and the opening.

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

The utility model relates to a locking type engine which is fixedly locked on a frame of a motorcycle and comprises a crankcase, a crankshaft, a transmission shaft, an output shaft, an oil pump chamber, an oil storage tank, a main oil pump and an oil storage pump. An oil pan is arranged at the bottom of the crankcase, an oil return part and a partition part connected with the oil return part are arranged in the crankcase, and the oil return part comprises a connecting section and a front oil return part. The partition part, the oil return part and the first blocking part divide the inner space of the crankcase into a crankcase front half part and a crankcase rear half part. The oil pump chamber is roughly wrapped by the oil pan, the first blocking part, the connecting section, the front oil return part and the second blocking part. The oil storage tank is arranged in the crankcase and communicated with the oil pump chamber through an oil return channel. The main oil pump is contained in the crankcase, an inlet of the main oil pump is located in the oil pump chamber and used for pumping lubricating oil to the oil way system, and part of the lubricating oil is distributed to the rear half portion of the crankcase. The oil storage pump is contained in the crankcase and communicated with the rear half portion of the crankcase through a first oil drawing channel. Therefore, the engine configuration is used for solving the problems that the oil pan is wide and flat, the oil pan cannot be effectively filled with lubricating oil and the like.

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 utility model relates to the technical field of diesel engines, and discloses a diesel engine for a mine car, which comprises an engine body, a bipolar engine oil pump, a tensioning wheel, an ECU (electronic control unit) and a starter, the bipolar engine oil pump is mounted in an oil pan on the bottom surface of the engine body, the tensioning wheel is mounted on the front end surface of the engine body, and the starter is mounted on a flywheel casing at the rear end of the engine body. The ECU is installed on the side face of an engine body through an ECU support, the bipolar engine oil pump comprises an oil conveying port and oil suction ports, the oil conveying port is connected with a main engine oil channel in the engine body, and the oil suction ports comprise the front end oil suction port located at the front end of an oil pan and the rear end oil suction port located at the rear end of the oil pan. According to the utility model, the structure of the engine body is optimally designed, the reliability of the engine body is improved, the fuel oil is subjected to three-stage filtration, and the requirement of the mining dump truck on the high reliability of the engine is well met.

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 invention relates to an oil pan, and discloses an oil suction system with an adaptive tilt state and an oil suction system control method. The oil suction system with an adaptive tilt state comprises an oil pan, a plurality of oil suction pipes, a tilt detection device and a controller. The oil suction ports of the oil suction pipes are connected to the inner cavity of the oil pan and are arranged separately along the circumference of the oil pan. The controller controls the on-off of the oil suction pipes according to the tilt information of the oil pan fed back by the tilt detection device. The present invention can be applied to the tilt of any direction of the engine, ensure the normal operation of the engine oil lubrication system, and is applicable to various special-shaped oil pans.

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.

The invention discloses an oil pan lubrication structure that meets the requirements of large inclination angle operation, and belongs to the field of engine lubrication technology. The structure comprises an oil pan installed on a diesel engine crankcase to store lubricating oil, a first oil suction pipe connected to a pressure oil pump, an oil return pipe connected to an oil return pump, a second oil suction pipe connected to the oil return pump, an oil return pump that transports lubricating oil from an oil storage chamber of the oil pan to a compartment of the oil pan, and an oil pressure pump that sucks oil from the compartment of the oil pan to supply lubricating oil to the diesel engine; the oil return pump and the oil pressure pump are both installed inside the diesel engine. The invention provides a compartment-type shallow oil pool oil pan with a height H of only 180 mm and a lubrication structure in which a pressure oil pump and an oil return pump cooperate, so that the vehicle can travel on a road with a large inclination angle without adding an external lubricating oil tank, and when the longitudinal size of the diesel engine is limited and the diesel engine cannot be installed with an oil pan with a deep oil pool.

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

The invention discloses an oil way system, a power assembly and a vehicle. The oil way system comprises an oil pan, an oil inlet and an oil outlet, and the oil storage box is communicated with the oil pan so as to control the height of oil in the oil pan. According to the oil way system, by arranging the oil storage box, on one hand, the height of oil in the oil pan can be reduced under the working condition that the requirement of a vehicle for the height of oil in the oil pan is low, so that dragging loss caused by oil stirring of parts in the power assembly is reduced, and the efficiency of the power assembly is improved; when the inclination angle of a vehicle is large or the requirement for lubricating and cooling is high, the oil liquid height of the oil pan can be increased, and the working requirement of a power assembly is met.

The utility model relates to a locking type engine, which is fixedly locked on a frame of a motorcycle and comprises a crankcase, a crankshaft, a transmission shaft, an output shaft and an oil pump. An oil pan is arranged at the bottom of the crankcase, an oil return part is arranged in the crankcase, the oil return part is connected with the oil pan through a first blocking part, and at least one first communicating channel is formed in the first blocking part. The crankshaft is arranged in the crankcase in a penetrating mode and driven by a power source of the locking type engine to pivot. The transmission shaft penetrates through the crankcase and is driven by the crankshaft to pivot. The output shaft penetrates through the crankcase, is driven by the transmission shaft to pivot and is used for driving a rear wheel to rotate. The oil pump is contained in the crankcase and used for pumping lubricating oil. Therefore, by means of the engine configuration, the lubricating system of the engine is improved, the purpose of maintaining the lubricating performance of the oil pump is achieved, and meanwhile the problem that when a vehicle accelerates and decelerates, lubricating oil in the oil pan is affected by acceleration, the liquid level swings and inclines, and consequently oil pressure cannot be established can be effectively solved.

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.