Overhead bypass valve integrated on oil filter oil outlet of rotary installation machine

Abstract

The utility model relates to an upper bypass valve integrated at an oil outlet of an oil filter of a rotary installation machine, the upper bypass valve is arranged at a first oil outlet of the oil filter, and the oil filter comprises a check valve, a filter element and a shell; the check valve and the filter element are both arranged in the shell, and the upper bypass valve is in interference fit with the filter element and embedded into the filter element. The check valve is sleeved on the upper bypass valve and is in interference fit with the upper bypass valve, and the check valve, the filter element and the upper bypass valve form a valve filter element assembly structure. The upper bypass valve comprises an upper cover and a valve body, a second oil inlet is formed in the periphery of the upper cover, and the upper cover is riveted with the valve body. Compared with the prior art, the upper bypass valve structure can enable impurities deposited at the bottom not to flow into an engine oil lubricating system in the cold start process, and therefore the situation that abrasion of an engine is aggravated is avoided. In addition, the channel space of the upper bypass valve structure is large, the valve is opened more timely, the through-flow area of the section of the valve is larger, and the risk of pressure accumulation during cold start is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of oil filters, in particular to an upper bypass valve integrated in an oil outlet of a spin-mounted oil filter. Background Art

[0002] Currently, spin-on oil filters mostly use a bypass valve integrated in the lower end cover of the filter element. For traditional forward-installed applications, after the engine is shut down, the impurities stored in the oil filter will be deposited at the bottom of the housing due to gravity. During the next cold start, the bypass valve integrated in the lower end cover of the filter element will open, and the impurities accumulated at the bottom will pass through the filter element and flow into the engine lubrication system, causing increased wear on the engine; in addition, due to the influence of the bottom installation edges and arc space, the lower bypass valve often cannot be opened or opened in time during cold start, and the oil cannot enter the lubrication system in time, thereby aggravating the early wear of the engine. Furthermore, the valve cross-section of the lower bypass valve is limited by the installation position, and the flow cross-sectional area is small, which will cause internal accumulation of oil filter pressure during cold start, increasing the risk of oil filter bursting.

[0003] Therefore, it is urgent to study a filter bypass valve that can increase the flow cross-sectional area and reduce the wear on the engine. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and to provide an upper bypass valve integrated in the oil outlet of the spin-on oil filter. The upper bypass valve can prevent impurities deposited at the bottom from flowing into the downstream oil lubrication system during the cold start process, thereby reducing engine wear.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The utility model provides an upper bypass valve integrated in the oil outlet of a spin-on oil filter, wherein the upper bypass valve is arranged at the first oil outlet of the oil filter, and the oil filter comprises a check valve, a filter element and a housing;

[0007] The check valve and the filter element are both arranged in the housing, the upper bypass valve is interference fit with the filter element and is embedded in the filter element; the check valve is sleeved on the upper bypass valve and is interference fit with the upper bypass valve, and the check valve, the filter element and the upper bypass valve form a valve filter element assembly structure;

[0008] The upper bypass valve comprises an upper cover and a valve body. A second oil inlet is arranged on the circumference of the upper cover. The second oil inlet is an arc-shaped opening. The upper cover and the valve body are riveted.

[0009] Furthermore, the upper bypass valve further comprises a rubber gasket, a metal gasket and a first spring;

[0010] The first spring is placed in the valve body, and the metal gasket is placed on the first spring.

[0011] Furthermore, the upper cover comprises an outer ring and an inner ring, a second oil outlet is provided at the center of the inner ring, and a plurality of second oil inlets are provided on the outer ring.

[0012] Furthermore, a plurality of the second oil inlets are equidistantly arranged on the circumference of the outer ring of the upper cover.

[0013] Furthermore, one end of the first spring abuts against the bottom of the valve body, and the other end abuts against the metal gasket.

[0014] Furthermore, the metal gasket is arranged at the center of the valve body and abuts against the first spring.

[0015] Furthermore, the rubber gasket is fixed between the valve body and the upper cover.

[0016] Furthermore, the oil filter also includes a threaded plate assembly and a support spring;

[0017] The support spring is placed on the threaded plate assembly, and the threaded plate assembly is riveted to the shell.

[0018] Furthermore, the oil filter also includes an outer sealing ring, and the outer sealing ring is fixed on the threaded plate assembly.

[0019] Furthermore, the support spring, the check valve, the filter element, and the upper bypass valve are all packaged in the outer shell.

[0020] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0021] 1. The upper bypass valve structure in the utility model can prevent the impurities deposited at the bottom from flowing into the oil lubrication system on the downstream side during the cold start process, thereby reducing the wear of the engine.

[0022] 2. The trapezoidal surface of the second oil inlet on the upper bypass valve in the utility model is evenly arranged to avoid interference with the second oil inlet caused by the opening of the check valve, thereby causing blockage of the second oil inlet; compared with the lower bypass valve, the upper bypass valve structure has a larger channel space, the valve opens more timely, and the flow area of ​​the valve cross section is larger, and the risk of pressure accumulation during cold start is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a half-section structure of a spin-on oil filter with an integrated upper bypass valve in Example 1;

[0024] Figure 2 Schematic diagram of a top view of a spin-on oil filter with an integrated upper bypass valve in Example 1;

[0025] Figure 3 Schematic diagram of the structure of the upper bypass valve in Example 1;

[0026] Figure 4 This is a schematic diagram of the half-section structure of the upper bypass valve in Example 1.

[0027] Figure 1 Description of the mark in:

[0028] 1-external sealing ring, 2-threaded plate assembly, 3-check valve, 4-upper bypass valve, 5-filter element, 6-housing, 7-support spring;

[0029] Figure 2 Description of the mark in:

[0030] 8-first oil inlet, 9-first oil outlet;

[0031] Figure 3 Description of the mark in:

[0032] 41-second oil inlet, 42-second oil outlet;

[0033] Figure 4 Description of the mark in:

[0034] 43-upper cover, 44-metal gasket, 45-first spring, 46-rubber gasket, 47-valve body. DETAILED DESCRIPTION

[0035] The specific implementation methods of the utility model are described in detail below through examples. These examples are implemented on the premise of the scheme described in the utility model, and provide detailed implementation methods and specific operating processes, but the protection scope of the utility model is not limited to the following examples.

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Any features such as component models, material names, connection structures, preparation methods, materials, structures or composition ratios not clearly described in this technical solution are deemed to be common technical features disclosed in the prior art.

[0037] Example 1

[0038] This embodiment provides an upper bypass valve integrated in the oil outlet of the spin-on oil filter, such as Figure 1 and Figure 2As shown, the upper bypass valve 4 is placed at the first oil outlet 9 of the oil filter. The oil filter includes a check valve 3, a filter element 5, a housing 6, a threaded plate assembly 2, a support spring 7 and an outer sealing ring 1. The check valve 3 and the filter element 5 are both arranged in the housing 6, the upper bypass valve 4 is interference fit with the filter element 5 and embedded in the filter element 5, the check valve 3 is sleeved on the upper bypass valve 4 and is interference fit with the upper bypass valve 4, and the check valve 3, the filter element 5 and the upper bypass valve 4 form a valve filter element assembly structure. The support spring 7 is placed on the threaded plate assembly 2, and the threaded plate assembly 2 is riveted to the housing 6; the outer sealing ring 1 is fixed on the threaded plate assembly 2. The support spring 47, the check valve 3, the filter element 5, and the upper bypass valve 4 are all encapsulated in the housing 6.

[0039] like Figure 3 and Figure 4 As shown, the upper bypass valve 4 includes an upper cover 43, a valve body 47, a rubber gasket 46, a metal gasket 44 and a first spring 45. The upper cover 43 includes an outer ring and an inner ring, the center of the inner ring is provided with a second oil outlet 42, and the outer ring is provided with a plurality of second oil inlets 41, which are equidistantly arranged on the circumference of the outer ring of the upper cover 43, and the second oil inlets 41 are arc-shaped openings. The upper cover 43 and the valve body 47 are riveted. The first spring 45 is placed in the valve body 47, and the metal gasket 44 is placed on the first spring 45, one end of the first spring 45 abuts against the bottom of the valve body 47, and the other end abuts against the metal gasket 44. The metal gasket 44 is arranged at the center of the valve body 47 and abuts against the first spring 45. The rubber gasket 46 is fixed between the valve body 47 and the upper cover 43.

[0040] During specific operation: When the engine oil system is working normally, the oil flows into the cavity formed by the housing and the filter element 5 through the first oil inlet 8 on the outside of the threaded plate assembly 2, then passes through the filter element 5, and flows into the engine through the first oil outlet 9 of the threaded plate assembly 2. When the engine is cold-started, due to the low temperature and high viscosity of the oil, the oil flows into the cavity formed by the housing and the filter element 5 through the first oil inlet 8 on the outside of the threaded plate assembly 2, and cannot pass through the filter element 5 to flow into the engine. The system pressure rises to the opening pressure of the upper bypass valve 4, and the upper bypass valve 4 opens. The oil squeezes the rubber gasket 46 and the metal gasket 44 through the second oil inlet 41 around the upper bypass valve 4, pushing the first spring 45 to move downward, and the internal arc structure of the upper cover 43 separates from the rubber gasket 46. The oil flows from the gap into the second oil outlet 42 of the upper bypass valve 4, and then enters the first oil outlet 9 of the threaded plate assembly 2 and flows into the engine, reducing the wear of the engine.

[0041] The trapezoidal surfaces of the second oil inlet 41 on the upper bypass valve in this embodiment are evenly arranged to prevent the opening of the check valve from interfering with the second oil inlet 41, thereby causing blockage of the second oil inlet 41; compared with the lower bypass valve, the upper bypass valve structure has a larger channel space, the valve opens more timely, and the flow area of ​​the valve cross section is larger, and the risk of pressure accumulation during cold start is smaller.

[0042] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. An upper bypass valve integrated in the oil outlet of a spin-on oil filter, characterized in that: The upper bypass valve (4) is disposed at a first oil outlet (9) of an oil filter, and the oil filter comprises a check valve (3), a filter element (5) and a housing (6); The check valve (3) and the filter element (5) are both arranged in the housing (6); the upper bypass valve (4) is interference-fitted with the filter element (5) and is embedded in the filter element (5); the check valve (3) is sleeved on the upper bypass valve (4) and is interference-fitted with the upper bypass valve (4); the check valve (3), the filter element (5) and the upper bypass valve (4) form a valve filter element assembly structure; The upper bypass valve (4) comprises an upper cover (43) and a valve body (47); a second oil inlet (41) is provided on the circumference of the upper cover (43); the second oil inlet (41) is a curved opening; and the upper cover (43) and the valve body (47) are riveted.

2. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 1, characterized in that: The upper bypass valve (4) further comprises a rubber gasket (46), a metal gasket (44) and a first spring (45); The first spring (45) is placed in the valve body (47), and the metal gasket (44) is placed on the first spring (45).

3. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 1, characterized in that: The upper cover (43) comprises an outer ring and an inner ring, a second oil outlet (42) is provided at the center of the inner ring, and a plurality of second oil inlets (41) are provided on the outer ring.

4. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 3, characterized in that: A plurality of the second oil inlets (41) are equidistantly arranged on the circumference of the outer ring of the upper cover (43).

5. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 2, characterized in that: One end of the first spring (45) abuts against the bottom of the valve body (47), and the other end abuts against the metal gasket (44).

6. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 2, characterized in that: The metal gasket (44) is arranged at the center of the valve body (47) and abuts against the first spring (45).

7. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 2, characterized in that: The rubber gasket (46) is fixed between the valve body (47) and the upper cover (43).

8. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 1, characterized in that: The oil filter also includes a threaded plate assembly (2) and a support spring (7); The support spring (7) is placed on the threaded plate assembly (2), and the threaded plate assembly (2) is riveted to the outer shell (6).

9. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 8, characterized in that: The oil filter also includes an outer sealing ring (1), and the outer sealing ring (1) is fixed on the threaded plate assembly (2).

10. The upper bypass valve integrated in the oil outlet of the spin-on oil filter according to claim 9, characterized in that: The support spring (7), the check valve (3), the filter element (5), and the upper bypass valve (4) are all packaged in the outer shell (6).

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