阅读说明：本技术 一种汽车机油油泵壳体 (Automobile engine oil pump shell ) 是由 不公告发明人 于 2019-10-11 设计创作，主要内容包括：本发明属于油泵技术领域,具体的说是一种汽车机油油泵壳体,包括壳体本体,壳体本体内设有圆柱形的工作腔,壳体本体上与吸油区对应位置开设有吸油孔,壳体本体上开设有与吸油孔垂直的一号滑孔,一号滑孔中滑动连接有一号滑柱；壳体本体上与排油区对应位置设有凸台,凸台内开设有L形的排油孔；排油孔的转角处设有二号滑孔,二号滑孔中滑动连接有二号滑柱；一号滑孔底部通过连通管与二号滑孔底部连通,连通管中充满液压油；本发明通过二号滑柱受压后向二号滑孔底部滑动,进而推动一号滑柱向一号滑孔外部滑动,降低壳体本体排油孔的流量和压力,减少因排油孔机油压力过高时黏度下降,降低机油的润滑效果。(The invention belongs to the technical field of oil pumps, and particularly relates to an automobile engine oil pump shell which comprises a shell body, wherein a cylindrical working cavity is arranged in the shell body, an oil suction hole is formed in the shell body at a position corresponding to an oil suction area, a first sliding hole vertical to the oil suction hole is formed in the shell body, and a first sliding column is connected in the first sliding hole in a sliding manner; a boss is arranged on the shell body corresponding to the oil discharge area, and an L-shaped oil discharge hole is formed in the boss; a second sliding hole is formed in the corner of the oil discharge hole, and a second sliding column is connected in the second sliding hole in a sliding mode; the bottom of the first sliding hole is communicated with the bottom of the second sliding hole through a communicating pipe, and the communicating pipe is filled with hydraulic oil; according to the invention, the sliding column II slides towards the bottom of the sliding hole II after being pressed, so that the sliding column I is pushed to slide towards the outside of the sliding hole I, the flow and the pressure of the oil discharge hole of the shell body are reduced, the viscosity reduction caused by overhigh oil pressure of the oil discharge hole is reduced, and the lubricating effect of the oil is reduced.)

1. The utility model provides an automobile engine oil pump shell which characterized in that: the impeller comprises a shell body (1), wherein a cylindrical working cavity (11) is arranged in the shell body (1), a through hole (12) is formed in the middle of the working cavity (11), the through hole (12) is not overlapped with the center of the working cavity (11), and the through hole (12) is used for installing a blade wheel shaft; the area, close to the through hole (12), in the working cavity (11) is an oil discharge area (13), and one side, far away from the through hole (12), in the working cavity (11) is an oil suction area (14); an oil suction hole (2) is formed in the position, corresponding to the oil suction area (14), of the shell body (1), a first sliding hole (21) perpendicular to the oil suction hole (2) is formed in the shell body (1), a first sliding column (22) is connected in the first sliding hole (21) in a sliding mode, and the first sliding column (22) is used for controlling the flow rate of engine oil in the oil suction hole (2) after extending out of the first sliding hole (21); a boss (15) is arranged on the shell body (1) and corresponds to the oil discharge area (13), an L-shaped oil discharge hole (23) is formed in the boss (15), and the oil discharge hole (23) is used for discharging engine oil in the working cavity (11); a second sliding hole (24) is formed in the corner of the oil discharge hole (23), and a second sliding column (25) is connected in the second sliding hole (24) in a sliding mode; the bottom of the first sliding hole (21) is communicated with the bottom of the second sliding hole (24) through a communicating pipe (26), and the communicating pipe (26) is filled with hydraulic oil; when the second sliding column (25) at the oil discharge hole (23) is pressed, the first sliding column (22) is pushed out, so that the oil inlet amount of the oil suction hole (2) is reduced, and the oil discharge pressure of an oil pump is prevented from being too high.

2. The automotive oil pump housing of claim 1, wherein: the outer side of the shell body (1) is provided with a circular truncated cone (16) at a position corresponding to the oil suction hole (2), one side, away from the working cavity (11), of the circular truncated cone (16) is provided with a plane perpendicular to the oil suction hole (2), and the plane perpendicular to the oil suction hole (2) is used for reducing deviation of a drill bit when the oil suction hole (2) is drilled.

3. The automotive oil pump housing of claim 1, wherein: an overflow hole (27) is formed in the middle of the second sliding hole (24), and the overflow hole (27) is communicated with the outside of the shell body (1); when the second sliding column (25) slides into the second sliding hole (24), the second sliding hole (24) is communicated with the oil discharge hole (23), the leakage flow of the oil discharge hole (23) is further increased, and the oil discharge pressure of the oil pump is further prevented from being too high.

4. The automotive oil pump housing of claim 3, wherein: a leakage hole (3) is formed in the position, close to the oil discharge hole (23), of the shell body (1), a clamping groove (31) is formed in the position, corresponding to the leakage hole (3), of the working cavity (11), a U-shaped elastic sheet (32) is clamped in the clamping groove (31), and the elastic sheet (32) does not influence the communication between the leakage hole (3) and the working cavity (11); a bullet-shaped top block (33) is arranged in the leakage hole (3), the diameter of a head part (34) of the top block (33) close to one end of the elastic sheet (32) is smaller than that of a tail part (35) of the other end of the top block, and a conical connecting part (36) is arranged between the head part (34) and the tail part (35); a sealing ring (37) is fixedly connected to the position, corresponding to the connecting part (36), in the leakage hole (3), the top block (33) penetrates through the sealing ring (37), and the connecting part (36) is matched with the sealing ring (37); a blind hole (38) is formed in the tail portion (35) of the top block (33), and a return spring is arranged in the blind hole (38); a bracket (39) is arranged in the leakage hole (3) at one side of the top block (33) far away from the elastic sheet (32), and one end of the reset spring extending out of the blind hole (38) is fixedly connected with the bracket (39); the rotating blades press the elastic sheet (32) and the top block (33) under the action of centrifugal force, so that high-pressure engine oil in the oil discharge area (13) leaks from the leakage hole (3), and the oil discharge pressure of the oil pump is further prevented from being too high.

5. The automotive oil pump housing of claim 4, wherein: the inboard that sealing ring (37) are close to connecting portion (36) is equipped with grinds and closes ring (4), grinds to close ring (4) hardness and is less than kicking block (33), and the leakproofness that the conical connecting portion (36) of running-in ring (4) cooperation were used for increasing leakage hole (3) prevents to cause the leakage when oil pump fuel feeding pressure is lower for the oil pump fuel feeding is not enough, damages the engine.

6. The automotive oil pump housing of claim 4, wherein: the thickness of the middle part of the elastic sheet (32) is smaller than the thickness of the two ends, so that the elasticity of the elastic sheet (32) can be increased, and the service life of the elastic sheet (32) is prolonged.

Technical Field

The invention belongs to the technical field of oil pumps, and particularly relates to an automobile engine oil pump shell.

Background

The oil pump is a light and compact pump, and has three major types, i.e., an in-line type, a distribution type and a single type. The oil pump can be operated only by a power source, and a camshaft at the lower part of the oil pump is driven by a crankshaft gear of the engine.

Oil pump and movable moulding that sets up in this outer cover, wherein, this movable moulding is made of a sinterable material, contain at least a ferrous alloy of austenite partially at least, and wherein this moulding made of a sinterable material has a thermal expansion coefficient of at least 60% of the thermal expansion coefficient of this outer cover.

The rotor type oil pump mainly comprises an inner rotor, an outer rotor, an oil pump body, an oil pump cover and other parts. The driving inner rotor and the driven outer rotor are both arranged in a rotor cavity of the pump body. The inner rotor is fixed on the driving shaft, the outer rotor can rotate freely in the rotor cavity, a certain eccentric distance exists between the inner rotor and the outer rotor, and the inner rotor drives the outer rotor to rotate together along the same direction.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problem of the rotor type oil pump, the oil supply quantity of the oil pump is increased continuously along with the increase of the rotating speed of an engine, and the oil pressure in an oil duct is increased continuously. The invention provides an automobile engine oil pump shell, which solves the problems that the temperature of lubricating oil is increased and the viscosity of the lubricating oil is reduced due to the continuous increase of the oil pressure, so that the lubricating effect of engine oil and the safe operation of an engine are influenced.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an automobile engine oil pump shell which comprises a shell body, wherein a cylindrical working cavity is arranged in the shell body, a through hole is formed in the middle of the working cavity, the through hole is not superposed with the center of the working cavity, and the through hole is used for installing a blade wheel shaft; the area of the working cavity close to the through hole is an oil discharge area, and one side of the working cavity far away from the through hole is an oil absorption area; an oil suction hole is formed in the position, corresponding to the oil suction area, of the shell body, a first sliding hole perpendicular to the oil suction hole is formed in the shell body, a first sliding column is connected in the first sliding hole in a sliding mode, and the first sliding column is used for controlling the flow of engine oil in the oil suction hole after extending out of the first sliding hole; a boss is arranged on the shell body corresponding to the oil discharge area, an L-shaped oil discharge hole is formed in the boss, and the oil discharge hole is used for discharging engine oil in the working cavity; a second sliding hole is formed in the corner of the oil discharge hole, and a second sliding column is connected in the second sliding hole in a sliding mode; the bottom of the first sliding hole is communicated with the bottom of the second sliding hole through a communicating pipe, and the communicating pipe is filled with hydraulic oil; when the second sliding column at the oil discharge hole is pressed, the first sliding column is pushed out, so that the oil inlet amount of the oil suction hole is reduced, and the oil discharge pressure of the oil pump is prevented from being too high; when the oil pump works, the impeller in the shell body rotates to suck engine oil into the oil suction area from the oil suction hole, then the engine oil rotates to the oil discharge area along with the impeller, the engine oil is discharged through the oil discharge hole after being pressurized and flows into a part needing lubrication in an engine, when the rotating speed of the engine is improved, the pressure of the engine oil in the oil discharge hole rises, the second sliding column slides to the bottom of the second sliding hole after being pressurized, so that the hydraulic oil at the bottom of the second sliding hole is compressed, the hydraulic oil transmits the pressure into the first sliding hole through the communicating pipe, and then the first sliding column is pushed to slide towards the outside of the first sliding hole, so that the flow rate of the engine oil in the oil suction hole is reduced, finally, the flow rate and the pressure of the oil discharge hole of the shell body are reduced, and when the pressure of the engine oil in the oil discharge hole is too high.

Preferably, a circular truncated cone is arranged at the position, corresponding to the oil suction hole, of the outer side of the shell body, a plane perpendicular to the oil suction hole is arranged on one side, away from the working cavity, of the circular truncated cone, and the plane perpendicular to the oil suction hole is used for reducing deviation of a drill when the oil suction hole is drilled; one side of the round platform matched with the round platform and far away from the working cavity is provided with a plane perpendicular to the oil suction hole, so that the process difficulty in drilling the oil suction hole is further reduced, the deviation of a drill bit is prevented, the use of a guide clamp is reduced, and the production cost is reduced.

Preferably, an overflow hole is formed in the middle of the second sliding hole and communicated with the outside of the shell body; when the second sliding column slides into the second sliding hole, the second sliding hole is communicated with the oil discharge hole, so that the discharge flow of the oil discharge hole is further increased, and the oil discharge pressure of the oil pump is further prevented from being too high; when the machine oil pressure in the oil drain hole was too high, promote No. two travelers to slide to No. two travelers bottoms, when No. two travelers slipped the overflow hole, the oil drain hole passed through overflow hole and the outside intercommunication of casing body, inside some machine oil in the oil drain hole flowed back into the engine after the overflow hole discharges, further reduced the pressure of the interior machine oil of oil drain hole to further reduce the machine oil temperature and rise, the viscosity descends, thereby guarantee the good lubricated effect of machine oil to the engine.

Preferably, a leakage hole is formed in the position, close to the oil discharge hole, of the shell body, a clamping groove is formed in the working cavity and corresponds to the leakage hole, a U-shaped elastic piece is connected in the clamping groove in a clamping mode, and the elastic piece does not influence the communication between the leakage hole and the working cavity; a bullet-shaped top block is arranged in the leakage hole, the diameter of the head part of the top block close to one end of the elastic sheet is smaller than that of the tail part of the other end of the elastic sheet, and a conical connecting part is arranged between the head part and the tail part; a sealing ring is fixedly connected to the position, corresponding to the connecting part, in the leakage hole, the top block penetrates through the sealing ring, and the connecting part is matched with the sealing ring; the tail part of the jacking block is provided with a blind hole, and a return spring is arranged in the blind hole; a support is arranged in a leakage hole at one side of the top block, which is far away from the elastic sheet, and one end of the reset spring, which extends out of the blind hole, is fixedly connected with the support; the rotating blades extrude the elastic sheets and the top block under the action of centrifugal force, so that high-pressure engine oil in an oil discharge area is leaked from the leakage hole, and the oil discharge pressure of an oil pump is further prevented from being too high; when engine speed was too fast, drive this internal impeller rotational speed of casing and rise, blade on the impeller this moment is under the effect of centrifugal force, increase the extrusion to the working chamber inner wall, when the blade rotated the shell fragment position, blade extrusion shell fragment, make the shell fragment warp the back and promote the kicking block and remove, the via hole is opened after the kicking block removes, make the inside highly compressed machine oil of oil extraction district discharge from the via hole, thereby further reduce the pressure of the interior machine oil of oil extraction hole, reduce the machine oil temperature and rise, thereby guarantee the good lubrication effect of machine oil to the engine.

Preferably, a grinding ring is arranged on the inner side, close to the connecting part, of the sealing ring, the hardness of the grinding ring is lower than that of the top block, the grinding ring is matched with the conical connecting part to increase the sealing performance of a leakage hole, and leakage caused by low oil supply pressure of the oil pump is prevented, so that the oil pump cannot supply oil enough and an engine is damaged; because the hardness that the grinding closed ring is less than the kicking block, at the cooperation in-process of grinding closed ring and kicking block connecting portion, the grinding closed ring is by the profile shape of adapting to connecting portion after connecting portion wearing and tearing, further increases the leakproofness of grinding closed ring and connecting portion for when engine speed is lower, let out the leakage hole and have better leakproofness, guarantee the fuel feeding volume in oil drain hole, further guarantee the good lubricated effect of machine oil to the engine.

Preferably, the thickness of the middle part of the elastic sheet is smaller than the thickness of the two ends, so that the elasticity of the elastic sheet can be increased, and the service life of the elastic sheet is prolonged; because shell fragment middle part thickness is less than the thickness at both ends, make the shell fragment have better elasticity, make the shell fragment middle part can bear bigger elastic deformation, when the blade rotated the shell fragment, the blade promoted shell fragment middle part and warp, the pressure of blade to the shell fragment middle part was less than the pressure of blade to the shell fragment both ends this moment, make the wearing and tearing that the shell fragment both ends received be greater than the shell fragment both ends, this moment because shell fragment both ends thickness is great, thereby further increase the life of shell fragment, further guarantee the good lubricated effect of machine oil to the engine.

The invention has the following beneficial effects:

1. according to the automobile engine oil pump shell, the second sliding column slides to the bottom of the second sliding hole after being pressed, so that the first sliding column is pushed to slide to the outside of the first sliding hole, the engine oil flow in the oil suction hole is reduced, the flow and the pressure of the oil discharge hole of the shell body are finally reduced, the temperature rise and the viscosity reduction of the engine oil and the reduction of the lubricating effect of the engine oil due to the fact that the engine oil pressure in the oil discharge hole is too high are reduced.

2. According to the automobile engine oil pump shell, when the second sliding column slides through the overflow hole, the oil discharge hole is communicated with the outside of the shell body through the overflow hole, and a part of engine oil in the oil discharge hole flows back into the engine after being discharged from the overflow hole, so that the pressure of the engine oil in the oil discharge hole is further reduced, the temperature rise and the viscosity reduction of the engine oil are further reduced, and the good lubricating effect of the engine oil on the engine is ensured.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

in the figure: the oil suction device comprises a shell body 1, a working cavity 11, a through hole 12, an oil discharge area 13, an oil suction area 14, an oil suction hole 2, a first sliding hole 21, a first sliding column 22, a boss 15, an oil discharge hole 23, a second sliding hole 24, a second sliding column 25, a communicating pipe 26, a circular truncated cone 16, an overflow hole 27, a leakage hole 3, a clamping groove 31, an elastic sheet 32, a top block 33, a head 34, a tail 35, a connecting part 36, a sealing ring 37, a blind hole 38, a support 39 and a running-in ring 4.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 3, the automobile engine oil pump housing of the invention comprises a housing body 1, a cylindrical working chamber 11 is arranged in the housing body 1, a through hole 12 is formed in the middle of the working chamber 11, the through hole 12 is not overlapped with the center of the working chamber 11, and the through hole 12 is used for installing a vane wheel shaft; the area of the working cavity 11 close to the through hole 12 is an oil discharge area 13, and one side of the working cavity 11 far away from the through hole 12 is an oil suction area 14; an oil suction hole 2 is formed in the position, corresponding to the oil suction area 14, of the shell body 1, a first sliding hole 21 perpendicular to the oil suction hole 2 is formed in the shell body 1, a first sliding column 22 is connected in the first sliding hole 21 in a sliding mode, and the first sliding column 22 is used for controlling the flow rate of engine oil in the oil suction hole 2 after extending out of the first sliding hole 21; a boss 15 is arranged on the shell body 1 corresponding to the oil discharge area 13, an L-shaped oil discharge hole 23 is formed in the boss 15, and the oil discharge hole 23 is used for discharging engine oil in the working cavity 11; a second sliding hole 24 is formed in the corner of the oil discharge hole 23, and a second sliding column 25 is connected in the second sliding hole 24 in a sliding manner; the bottom of the first sliding hole 21 is communicated with the bottom of the second sliding hole 24 through a communicating pipe 26, and the communicating pipe 26 is filled with hydraulic oil; when the second sliding column 25 at the oil discharge hole 23 is pressed, the first sliding column 22 is pushed out, so that the oil inlet amount of the oil suction hole 2 is reduced, and the oil discharge pressure of an oil pump is prevented from being too high; when the engine oil pressure-boosting sliding column device works, the impeller in the shell body 1 rotates to suck engine oil into the oil suction area 14 from the oil suction hole 2, then the engine oil rotates to the oil discharge area 13 along with the impeller, the engine oil is discharged through the oil discharge hole 23 after being pressurized and flows into a part needing to be lubricated in an engine, when the rotating speed of the engine is increased, the engine oil pressure in the oil discharge hole 23 is increased, the second sliding column 25 is pressed and then slides towards the bottom of the second sliding hole 24, so that hydraulic oil at the bottom of the second sliding hole 24 is compressed, the pressure is transmitted into the first sliding hole 21 through the communicating pipe 26 by the hydraulic oil, the first sliding column 22 is further pushed to slide towards the outside of the first sliding hole 21, the engine oil flow in the oil suction hole 2 is further reduced, the flow and the pressure of the oil discharge hole 23 of the shell body 1 are finally reduced, and the phenomenon that the temperature and the viscosity of the engine oil are reduced.

As an embodiment of the invention, a circular truncated cone 16 is arranged at a position, corresponding to the oil suction hole 2, outside the housing body 1, a plane perpendicular to the oil suction hole 2 is arranged on one side of the circular truncated cone 16, which is far away from the working cavity 11, and the plane perpendicular to the oil suction hole 2 is used for reducing deviation of a drill when the oil suction hole 2 is drilled; the plane perpendicular to the oil suction hole 2 is arranged on one side, away from the working cavity 11, of the circular truncated cone 16 in a matched mode, the circular truncated cone 16 is arranged, the process difficulty in drilling the oil suction hole 2 is further reduced, deviation of a drill bit is prevented, the use of a guide clamp is reduced, and the production cost is reduced.

As an embodiment of the invention, an overflow hole 27 is formed in the middle of the second sliding hole 24, and the overflow hole 27 is communicated with the outside of the shell body 1; when the second sliding column 25 slides into the second sliding hole 24, the second sliding hole 24 is communicated with the oil discharge hole 23, so that the leakage flow of the oil discharge hole 23 is further increased, and the oil discharge pressure of the oil pump is further prevented from being too high; when the machine oil pressure in the oil drain hole 23 is too high, promote No. two travelers 25 to slide to No. two travelers 24 bottoms, when No. two travelers 25 slide overflow hole 27, oil drain hole 23 passes through overflow hole 27 and the outside intercommunication of casing body 1, inside some machine oil in the oil drain hole 23 flows back into the engine after the overflow hole 27 discharges, further reduce the pressure of machine oil in the oil drain hole 23, thereby further reduce the machine oil temperature and rise, the viscosity descends, thereby guarantee the good lubricated effect of machine oil to the engine.

As an embodiment of the present invention, a leakage hole 3 is formed at a position of the housing body 1 close to the oil discharge hole 23, a locking groove 31 is formed at a position of the working chamber 11 corresponding to the leakage hole 3, a u-shaped resilient piece 32 is fastened in the locking groove 31, and the resilient piece 32 does not affect the communication between the leakage hole 3 and the working chamber 11; a bullet-shaped top block 33 is arranged in the leakage hole 3, the diameter of a head part 34 of the top block 33 close to one end of the elastic sheet 32 is smaller than that of a tail part 35 of the other end of the top block, and a conical connecting part 36 is arranged between the head part 34 and the tail part 35; a sealing ring 37 is fixedly connected to a position, corresponding to the connecting part 36, in the leakage hole 3, the top block 33 penetrates through the sealing ring 37, and the connecting part 36 is matched with the sealing ring 37; the tail part 35 of the top block 33 is provided with a blind hole 38, and a return spring is arranged in the blind hole 38; a bracket 39 is arranged in the leakage hole 3 at one side of the top block 33 far away from the elastic sheet 32, and one end of the return spring extending out of the blind hole 38 is fixedly connected with the bracket 39; the rotating blades press the elastic sheet 32 and the top block 33 under the action of centrifugal force, so that high-pressure engine oil in the oil discharge area 13 leaks from the leakage hole 3, and the oil discharge pressure of an oil pump is further prevented from being too high; when engine speed was too fast, the impeller rotational speed that drives in the casing body 1 rose, blade on the impeller was under the effect of centrifugal force this moment, increase the extrusion to 11 inner walls of working chamber, when the blade rotated shell fragment 32 position, blade extrusion shell fragment 32, make shell fragment 32 warp back promotion kicking block 33 and remove, leak opening 3 is opened after kicking block 33 removed, make the inside highly compressed machine oil of oil discharge zone 13 discharge from leak opening 3, thereby further reduce the pressure of the interior machine oil of oil discharge hole 23, reduce the machine oil temperature and rise, thereby guarantee the good lubricated effect of machine oil to the engine.

As an embodiment of the invention, the inner side of the sealing ring 37 close to the connecting part 36 is provided with a running-in ring 4, the hardness of the running-in ring 4 is lower than that of the top block 33, the running-in ring 4 is matched with the conical connecting part 36 to increase the sealing performance of the leakage hole 3, and leakage caused by low oil supply pressure of an oil pump is prevented, so that the oil pump is lack of oil supply and the engine is damaged; because the hardness of the grinding ring 4 is lower than that of the top block 33, in the matching process of the connecting part 36 of the grinding ring 4 and the top block 33, the grinding ring 4 is worn by the connecting part 36 and then adapts to the outline shape of the connecting part 36, and the sealing performance of the grinding ring 4 and the connecting part 36 is further improved, so that when the rotating speed of the engine is lower, the leakage hole 3 has better sealing performance, the oil supply amount of the oil discharge hole 23 is ensured, and the good lubricating effect of engine oil on the engine is further ensured.

As an embodiment of the present invention, the thickness of the middle portion of the elastic sheet 32 is smaller than the thickness of the two ends, which can increase the elasticity of the elastic sheet 32 and increase the service life of the elastic sheet 32; because shell fragment 32 middle part thickness is less than the thickness at both ends, make shell fragment 32 have better elasticity, make shell fragment 32 middle part can bear bigger elastic deformation, when the blade rotated shell fragment 32, the blade promoted shell fragment 32 middle part and warp, the pressure of blade to shell fragment 32 middle part was less than the pressure of blade to shell fragment 32 both ends this moment, the wearing and tearing that make shell fragment 32 both ends receive were greater than shell fragment 32 both ends, this moment because shell fragment 32 both ends thickness is great, thereby further increase shell fragment 32's life, further guarantee the good lubricated effect of machine oil to the engine.

When the engine oil pressure-increasing device works, the impeller in the shell body 1 rotates to suck engine oil into the oil suction area 14 from the oil suction hole 2, then the engine oil rotates to the oil discharge area 13 along with the impeller, the engine oil is pressurized and then discharged through the oil discharge hole 23 and flows into a part needing to be lubricated in an engine, when the rotating speed of the engine is increased, the pressure of the engine oil in the oil discharge hole 23 is increased, the second sliding column 25 is pressed and then slides towards the bottom of the second sliding hole 24, so that hydraulic oil at the bottom of the second sliding hole 24 is compressed, the pressure of the hydraulic oil is transmitted into the first sliding hole 21 through the communicating pipe 26, the first sliding column 22 is pushed to slide towards the outside of the first sliding hole 21, the flow rate of the engine oil in the oil suction hole 2 is reduced, finally, the flow rate and the pressure of the oil discharge hole 23 of the shell body 1 are reduced, and the temperature rise, the viscosity reduction and the lubricating effect; the plane perpendicular to the oil suction hole 2 is arranged on one side, away from the working cavity 11, of the circular truncated cone 16 in a matched mode, the circular truncated cone 16 is arranged, so that the process difficulty in drilling the oil suction hole 2 is further reduced, the deviation of a drill bit is prevented, the use of a guide clamp is reduced, and the production cost is reduced; when the pressure of the engine oil in the oil discharge hole 23 is too high, the second sliding column 25 is pushed to slide towards the bottom of the second sliding hole 24, when the second sliding column 25 slides through the overflow hole 27, the oil discharge hole 23 is communicated with the outside of the shell body 1 through the overflow hole 27, a part of the engine oil in the oil discharge hole 23 is discharged from the overflow hole 27 and then flows back into the inside of the engine, the pressure of the engine oil in the oil discharge hole 23 is further reduced, the temperature rise and viscosity drop of the engine oil are further reduced, and therefore a good lubricating effect of the engine oil on the engine is guaranteed; when the engine rotates too fast, the rotating speed of the impeller in the shell body 1 is driven to rise, at the moment, the blades on the impeller increase the extrusion on the inner wall of the working cavity 11 under the action of centrifugal force, when the blades rotate to the position of the elastic sheet 32, the blades extrude the elastic sheet 32, so that the elastic sheet 32 deforms and then pushes the top block 33 to move, the leakage hole 3 is opened after the top block 33 moves, and part of high-pressure engine oil in the oil discharge area 13 is discharged from the leakage hole 3, so that the pressure of the engine oil in the oil discharge hole 23 is further reduced, the temperature rise of the engine oil is reduced, and the good lubricating effect of the engine oil on the engine is; because the hardness of the grinding ring 4 is lower than that of the top block 33, in the matching process of the grinding ring 4 and the connecting part 36 of the top block 33, the grinding ring 4 is worn by the connecting part 36 and then adapts to the outline shape of the connecting part 36, and the sealing performance of the grinding ring 4 and the connecting part 36 is further improved, so that when the rotating speed of the engine is low, the leakage hole 3 has good sealing performance, the oil supply amount of the oil discharge hole 23 is ensured, and the good lubricating effect of engine oil on the engine is further ensured; because shell fragment 32 middle part thickness is less than the thickness at both ends, make shell fragment 32 have better elasticity, make shell fragment 32 middle part can bear bigger elastic deformation, when the blade rotated shell fragment 32, the blade promoted shell fragment 32 middle part and warp, the pressure of blade to shell fragment 32 middle part was less than the pressure of blade to shell fragment 32 both ends this moment, the wearing and tearing that make shell fragment 32 both ends receive were greater than shell fragment 32 both ends, this moment because shell fragment 32 both ends thickness is great, thereby further increase shell fragment 32's life, further guarantee the good lubricated effect of machine oil to the engine.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.