CN115163242A

CN115163242A - Novel engine oil regulating valve

Info

Publication number: CN115163242A
Application number: CN202210862642.7A
Authority: CN
Inventors: 张亮亮; 张洪磊; 杨田云; 郑永强; 米贵; 吴亦宁; 杨帆
Original assignee: CRRC Qishuyan Co Ltd
Current assignee: CRRC Qishuyan Co Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-10-11
Also published as: WO2024016372A1

Abstract

The invention relates to the technical field of oil control valves, in particular to a novel oil control valve, which is characterized by comprising a casing; an oil outlet is provided on the left side of the casing, and the oil outlet is connected to the filtered oil. An oil filter is arranged in the middle of the oil cavity after filtration; the left side of the oil filter is connected to the oil cavity before filtration; an oil hole is arranged on the left side of the oil cavity before filtration, and the lower part There is an oil inlet of the main oil passage; the oil hole is connected to the cavity to be leaked; the cavity to be leaked is provided with a piston push rod, and a spring installation cavity is arranged below; the spring installation cavity is provided with a spring, and the left side is provided with a spring There are three oil holes. The beneficial effect of the invention is that the oil pressure after the filter can be directly adjusted by controlling the oil flow before the filter, so that the oil pressure after the filter is kept in a stable state, the adjustment accuracy is high, and the oil filter is prolonged. service life of the appliance.

Description

Novel engine oil regulating valve

Technical Field

The invention relates to the technical field of engine oil regulating valves, in particular to a novel engine oil regulating valve.

Background

Diesel engines are internal combustion engines fueled by diesel fuel. Diesel engines belong to the compression ignition type of engines, which are often also referred to as diesel engines under the name diesel, the main inventor. When the diesel engine works, air sucked into a cylinder of the diesel engine is compressed to a high degree due to the movement of a piston, and the high temperature of the air reaches 500-700 ℃. Then the fuel oil is sprayed into the high-temperature air in the form of fog, and mixed with the high-temperature air to form combustible mixed gas, and then the combustible mixed gas can be automatically ignited and combusted. The energy released during combustion acts on the top surface of the piston, pushing it and converting it into rotational mechanical work through the connecting rod and crankshaft. The existing diesel engine has the problems of unstable engine oil pressure and short service life of a filter.

Disclosure of Invention

In order to overcome the existing defects, the invention provides a novel engine oil regulating valve.

The technical scheme adopted by the invention for solving the technical problems is as follows: a novel engine oil regulating valve is characterized by comprising a shell; an engine oil outlet is formed in the left side of the shell and is communicated with the filtered engine oil cavity; an oil filter is arranged in the middle of the filtered oil cavity; the left side of the oil filter is communicated with an oil cavity before filtration; the left side of the oil cavity before filtering is provided with a first oil hole, and a main oil duct oil inlet is arranged below the first oil hole; the first oil hole is communicated with a cavity to be leaked; a piston push rod is arranged in the cavity to be leaked, and a spring installation cavity is arranged below the piston push rod; and a spring is arranged in the spring mounting cavity, and the left side of the spring mounting cavity is provided with a third oil hole.

According to another embodiment of the invention, further comprising that the lower end of the piston push rod is connected with a spring; the lower part of the spring is connected with the ejector rod through the mandrel.

According to another embodiment of the invention, flanges are fixed on two sides of the lower end of the mandrel, and a sealing ring is arranged at the joint of the flanges and the ejector rod.

According to another embodiment of the invention, the ejector rod and the flange are connected through threads, the outer side of the ejector rod is connected with a nut through threads, and the nut is positioned below the flange.

According to another embodiment of the invention, the piston push rod is provided with a fourth oil hole at the upper end and a second oil hole at the left side of the lower end.

According to another embodiment of the invention, the engine further comprises an oil hole four communicated with the filtered oil cavity.

According to another embodiment of the invention, further comprising the oil filter is welded within the housing.

The invention has the advantages that the engine oil before and after the filter is associated, the engine oil pressure after the filter is directly adjusted by controlling the engine oil flow before the filter, so that the filtered engine oil pressure keeps a stable state, the adjusting accuracy is high, more importantly, the structure controls the flow before the filter, the engine oil flow for adjusting is prevented from passing through the filter, and the service life of the engine oil filter is prolonged.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 isbase:Sub>A schematic sectional view taken along the line A-A in FIG. 1 according to the present invention.

In the figure, the engine oil filter comprises a shell 1, a shell 2, an engine oil outlet 3, a post-filtering engine oil cavity 4, an engine oil filter 5, a pre-filtering engine oil cavity 6, an oil hole I, an oil hole 7, a main oil passage oil inlet 8, a cavity to be leaked 9, an oil hole IV, an oil hole 10, a piston push rod 11, a spring mounting cavity 12, a spring 13, an oil hole III, an oil hole 14, a mandrel 15, a push rod 16, a flange 17, a sealing ring 18, a nut 19 and an oil hole II.

Detailed Description

Fig. 1 is a schematic structural diagram of the present invention, and a novel oil regulating valve is characterized by comprising a housing 1; an engine oil outlet 2 is formed in the left side of the shell 1, and the engine oil outlet 2 is communicated with a filtered engine oil cavity 3; an oil filter 4 is arranged in the middle of the filtered engine oil cavity 3; the left side of the oil filter 4 is communicated with a front oil filtering cavity 5; the left side of the oil cavity 5 of the engine before filtering is provided with an oil hole I6, and the lower part of the oil cavity is provided with a main oil duct oil inlet 7; the first oil hole 6 is communicated with a cavity 8 to be leaked; a piston push rod 10 is arranged in the cavity 8 to be leaked, and a spring installation cavity 11 is arranged below the piston push rod; a spring 12 is arranged in the spring mounting cavity 11, and the left side of the spring mounting cavity is provided with a third oil hole 13.

Particularly, the effect of oilhole three 13 is mainly got rid of the unnecessary machine oil that infiltrates in spring installation cavity 11, avoids spring installation cavity 11 to form seal chamber, hinders piston push rod 10 down, guarantees whole piston push rod 10's normal operating.

According to another embodiment of the invention, further comprising that the lower end of the piston push rod 10 is connected with a spring 12; an ejector rod 15 is connected below the spring 12 through a mandrel 14.

According to another embodiment of the invention, flanges 16 are fixed on both sides of the lower end of the mandrel 14, and a sealing ring 17 is arranged at the joint of the mandrel and the ejector rod 15.

According to another embodiment of the invention, further comprising that the mandril 15 and the flange 16 are connected through screw threads, a nut 18 is connected to the outer side of the mandril 15 through screw threads, the nut 18 is positioned below the flange 16, and the compression length of the spring 12 is adjusted through rotating the nut 18 on the mandril 15, so that the oil flow and the oil pressure are adjusted.

According to another embodiment of the invention, the piston push rod 10 is provided with an oil hole four 9 at the upper end and an oil hole two 19 at the left side of the lower end.

According to another embodiment of the invention, the oil hole four 9 is communicated with the filtered oil cavity 3.

According to another embodiment of the invention, it is further provided that the oil filter 4 is welded in the housing 1.

In the specific operation process, engine oil enters the engine oil cavity 5 before filtration from the oil inlet 7 of the main oil duct and then is divided into two paths: one path enters a to-be-leaked cavity 8 where the first oil hole 6 is located, and the other path enters the oil filter 4. The engine oil in the engine oil filter 4 enters the filtered engine oil cavity 3 after being filtered, the filtered engine oil cavity 3 is communicated with the engine oil hole four 9, and the engine oil pressure directly acts on the piston push rod 10. When the filtered engine oil pressure is greater than the use requirement, namely the engine oil pressure acting on the piston push rod 10 is greater than the elastic force of the spring 12, the piston push rod 10 is pushed to move downwards, so that the first oil hole 6 and the second oil hole 19 are communicated, and the engine oil in the cavity 8 to be leaked, where the first oil hole 6 is located, is discharged. The larger the pressure of the oil hole four 9 is, the longer the moving stroke of the piston push rod 10 is, the larger the leakage area is, more engine oil flow before filtering is discharged, the flow of the engine oil entering the filtering is reduced, and the oil pressure of the oil hole four 9 is correspondingly reduced. On the contrary, when the oil pressure at the oil hole four 9 is too low, the pressure on the piston push rod 10 is smaller than the pressure of the spring 12, the piston push rod 10 moves upwards, the through area of the oil hole one 6 and the oil hole two 19 is gradually reduced, the oil leakage flow is reduced, and the oil entering the oil filter 4 is increased; the oil flow of the device increases the oil pressure at the oil hole four 9. The oil flow and pressure of the system are stabilized until the oil pressure acting on the piston push rod 10 is balanced with the spring 12 pressure.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A novel oil regulating valve, characterized in that it comprises a casing (1); an oil outlet (2) is provided on the left side of the casing (1), and the oil outlet (2) is connected to a filter. The oil chamber (3) after cleaning is connected; the oil filter (4) is arranged in the middle of the oil chamber (3) after filtering; the left side of the oil filter (4) is connected to the oil chamber (5) before filtering ; An oil hole (6) is provided on the left side of the pre-filtering oil chamber (5), and a main oil passage oil inlet (7) is provided below; the oil hole (6) is connected to the cavity to be leaked (8) ; a piston push rod (10) is arranged in the to-be-leak cavity (8), and a spring installation cavity (11) is arranged below; a spring (12) is arranged in the spring installation cavity (11), and oil is arranged on the left side Hole three (13).

2 . The oil regulating valve according to claim 1 , wherein the lower end of the piston push rod ( 10 ) is connected to a spring ( 12 ); the lower end of the spring ( 12 ) is connected to a top rod ( 15 ) through a mandrel ( 14 ). ).

3. The oil regulating valve according to claim 2, wherein flanges (16) are fixed on both sides of the lower end of the mandrel (14), and a sealing ring (17) is provided at the connection with the ejector rod (15). .

4 . The oil regulating valve according to claim 3 , wherein the top rod ( 15 ) and the flange ( 16 ) are connected by threads, and a nut ( 18 ) is threadedly connected to the outside of the top rod ( 15 ).

5. The oil regulating valve according to claim 4, wherein the nut (18) is located below the flange (16).

6. The oil regulating valve according to claim 1, characterized in that, the upper end of the piston push rod (10) is provided with oil hole four (9), and the left side of the lower end is provided with oil hole two (19).

7 . The oil regulating valve according to claim 6 , wherein the oil hole four ( 9 ) communicates with the filtered oil chamber ( 3 ). 8 .

8 . The oil regulating valve according to claim 1 , wherein the oil filter ( 4 ) is welded in the housing ( 1 ). 9 .