Engine filter

Abstract

The utility model provides an engine filter which comprises a cover body, an oil leakage prevention assembly, a shell and a filter element, the cover body comprises an oil inlet cavity and an oil outlet cavity, the oil leakage prevention assembly is communicated with the oil inlet cavity, and the oil leakage prevention assembly comprises a leakage prevention support, a spring and a leakage prevention plugging block. The leakage-proof support moves downwards under the acting force of the spring till the plugging plate abuts against the leakage-proof plugging block, fuel oil is separated from the oil inlet support, and the fuel oil is prevented from continuously flowing from the oil inlet support. According to the engine filter, the problem that fuel oil in a fuel oil channel of a fuel oil filter still flows out continuously when a filter screen is replaced is solved, fuel oil leakage is avoided, meanwhile, the scheme is simple and practical in structure, and the use comfort of an engine operator can be improved.

Description

Technical Field

[0001] This utility model relates to the field of engines, and in particular to an engine filter. Background Technology

[0002] In engine technology, the fuel filter is an indispensable component during engine operation. Its main function is to filter the fuel delivered from the fuel tank to the injection pump, ensuring clean fuel passes through. Due to fuel quality or environmental factors, after a period of use, the fuel filter element will accumulate more impurities after filtering the fuel, affecting the fuel supply rate and cleanliness. Therefore, the fuel filter element must be replaced. Since the fuel filter is connected to the fuel tank via the fuel outlet pipe, fuel leakage is unavoidable during fuel filter removal, wasting fuel, polluting the environment, and potentially soiling the operator.

[0003] Therefore, it is necessary to provide an engine filter to overcome the defects mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide an engine filter that solves the problem of fuel continuing to flow out of the fuel passage of the fuel filter when the filter screen is replaced, thereby preventing fuel leakage and solving the problems of environmental pollution caused by fuel leakage and the operator being easily soiled by fuel.

[0005] According to one aspect of this utility model, an engine filter is provided, including a cover, an oil leak prevention assembly, a housing, and a filter element. The cover includes an oil inlet chamber and an oil outlet chamber. The oil leak prevention assembly is placed inside the cover and communicates with the oil inlet chamber. The housing is placed below the oil leak prevention assembly and connected to the cover. The filter element is placed inside the housing and communicates with the oil leak prevention assembly. The oil leak prevention assembly includes an oil leak prevention bracket, a spring, and an oil leak prevention plug. The oil leak prevention bracket is placed in the oil inlet chamber and includes a spring bracket, a sealing plate, and an oil inlet bracket arranged sequentially. The spring is sleeved on the spring bracket, and the oil leak prevention plug is sleeved on the oil inlet bracket. When the engine filter is working normally, fuel flows through the oil inlet chamber, through the spring bracket, the sealing plate, and the oil inlet bracket, and further flows through the space between the oil inlet bracket and the oil leak prevention plug to the filter element for fuel filtration. When replacing the filter element, the filter element is removed, and the oil leak prevention bracket moves downward under the action of the spring until the sealing plate abuts against the oil leak prevention plug, blocking the fuel from the oil inlet bracket and preventing the fuel from continuing to flow from the oil inlet bracket. The above solution solves the problem of fuel continuing to flow out of the engine filter fuel passage when the filter screen is replaced, thus preventing fuel leakage. At the same time, the solution is simple and practical, which can improve the comfort of engine operators.

[0006] Preferably, the fuel inlet chamber includes a first chamber, a second chamber, and a third chamber with progressively larger diameters from top to bottom. A spring is placed in the second chamber, a leak-proof bracket is placed in the third chamber, and a leak-proof plug is placed in the third chamber and is interference-fitted with it. This design helps to limit the movement of the leak-proof plug, preventing fuel from leaking out from non-fuel inlet locations.

[0007] Preferably, the leak-proof plug includes a first column, a second column, and a third column whose outer diameter increases progressively from top to bottom, with the second column and the third cavity being press-fitted together; the leak-proof plug has a plug cavity running vertically through the middle. This design helps to allow fuel to flow towards the filter element.

[0008] Preferably, the diameter of the sealing plate is smaller than the diameter of the third chamber, and the diameter of the sealing plate is larger than the diameter of the first column. This design helps to better seal the oil inlet when replacing the filter element, preventing fuel leakage.

[0009] Preferably, the fuel inlet support includes a through portion located on the side of the fuel inlet support, which is placed within the plug cavity. Fuel flows to the filter element through the space between the through portion and the plug cavity. This structure ensures smooth fuel intake.

[0010] Preferably, the oil leak prevention assembly further includes a plug sealing gasket fitted onto the first column. This design helps improve the sealing performance of the oil leak prevention device.

[0011] Preferably, the cover also includes an exhaust chamber communicating with the oil outlet chamber.

[0012] Preferably, the filter element includes a cover plate that abuts against the leak-proof bracket and a filter section located below the cover plate. The cover plate has a through section extending in the vertical direction, which communicates with the block cavity, and fuel flows to the filter section through the through section.

[0013] Preferably, the system also includes a nut fitted onto the housing and the cover to secure them together. This design helps to achieve both tightening and sealing of the filter.

[0014] Preferably, the engine filter further includes a housing gasket placed between the cover and the housing. This design helps improve the sealing performance of the filter.

[0015] This utility model provides an engine filter, including a cover, an oil leak prevention component, a housing, and a filter element. The cover includes an oil inlet chamber and an oil outlet chamber. The oil leak prevention component is connected to the oil inlet chamber. When replacing the filter element, the oil leak prevention bracket moves downward under the action of a spring, so that the sealing plate abuts against the oil leak prevention block, preventing fuel from continuing to flow from the oil inlet bracket and avoiding fuel leakage. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 These are the front and top views of the engine filter;

[0018] Figure 2 For the engine filter in its working state along Figure 1 A cross-sectional view along the AA direction;

[0019] Figure 3 for Figure 2 A magnified view of a portion of position B in the middle;

[0020] Figure 4 When changing the engine filter element, follow Figure 1 A partial structural cross-sectional view along the AA direction;

[0021] Figure 5 A cross-sectional view of the leak-proof plug;

[0022] Figure 6 This is a schematic diagram of a leak-proof support.

[0023] Explanation of icon numbers:

[0024] 1. Cover; 2. Leak-proof assembly; 3. Housing sealing gasket; 4. Nut; 5. Filter element; 6. Housing; 7. Oil inlet pipe; 11. Oil inlet chamber; 111. Connecting chamber; 112. First chamber; 113. Second chamber; 114. Third chamber; 12. Exhaust chamber; 13. Oil outlet chamber; 21. Spring; 22. Leak-proof bracket; 221. Spring bracket; 222. Sealing plate; 223. Oil inlet bracket; 2231. Through section; 23. Block sealing gasket; 24. Leak-proof block; 214. First column; 242. Second column; 243. Third column; 244. Block chamber; 51. Cover plate; 52. Filter section. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0027] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0031] The embodiments for carrying out this application will be described with reference to the accompanying drawings. It should be noted that, in the following description, the direction indicated by the straight line is designated as "up" of the filter (see reference). Figure 2 Set the direction indicated by the straight line to "down" for the filter (see reference). Figure 2 ).

[0032] See Figures 1 to 6As shown, this embodiment provides an engine filter, including a cover 1, an oil leak prevention assembly 2, a housing 6, a filter element 5, a nut 4, and a housing sealing gasket 3. The cover 1 includes an oil inlet chamber 11, an oil outlet chamber 13, and an exhaust chamber 12 connected to the oil outlet chamber 13. The oil leak prevention assembly 2 is placed inside the cover 1 and communicates with the oil inlet chamber 11. The housing 6 is placed below the oil leak prevention assembly 2 and connected to the cover 1. The filter element 5 is placed inside the housing 6 and communicates with the oil leak prevention assembly 2. The filter element 5 includes a cover plate 51 that abuts against the oil leak prevention bracket 22 and a filter portion 52 placed below the cover plate 51. The cover plate 51 has a through portion (not shown) that extends in the vertical direction. The nut 4 is sleeved on the housing 6 and the cover 1 to fasten the housing 6 and the cover 1, thereby achieving fastening and sealing of the filter. The housing sealing gasket 3 is placed between the cover 1 and the housing 6, which helps to improve the sealing effect of the filter.

[0033] See Figure 2 and Figure 3 As shown, the oil leak prevention assembly 2 includes an oil leak prevention bracket 22, a spring 21, an oil leak prevention plug 24, and a plug sealing gasket 23. The oil leak prevention bracket 22 is placed in the oil inlet chamber 11. The oil leak prevention bracket 22 includes a spring bracket 221, a sealing plate 222, and an oil inlet bracket 223 arranged sequentially from top to bottom. The spring 21 is sleeved on the spring bracket 221, the oil leak prevention plug 24 is sleeved on the oil inlet bracket 223, and the plug sealing gasket 23 is sleeved on the upper part of the oil leak prevention plug 24. When the engine filter is working normally, fuel flows through the oil inlet chamber 11, passing through the spring bracket 221, the sealing plate 222, and the oil inlet bracket 223. The fuel flows further through the space between the inlet bracket 223 and the anti-leakage block 24 to the filter element 5 for fuel filtration. After passing through the filter element 5, the fuel is discharged from the outlet chamber 13. When replacing the filter element 5, the filter element 5 is removed, and the anti-leakage bracket 22 moves downward under the force of the spring 21 until the sealing plate 222 abuts against the anti-leakage block 24. The sealing gasket 23 of the block abuts against the sealing plate 222, blocking the fuel from the inlet bracket 223 and preventing the fuel from continuing to flow from the inlet bracket 223. This solves the problem that fuel will continue to flow out of the fuel passage of the engine filter when the filter screen is replaced, and avoids fuel leakage.

[0034] See Figure 4As shown, the oil inlet chamber 11 includes a first chamber 112, a second chamber 113, and a third chamber 114 whose diameters gradually increase from top to bottom. The spring 21 is placed in the second chamber 113. The oil inlet chamber 11 also includes a connecting chamber 111 placed above the first chamber 112 and connected to the oil inlet pipe 7. The anti-leakage bracket 22 is placed in the third chamber 114, and the anti-leakage block 24 is placed in the third chamber 114 and is interference-fitted with the third chamber 114, thereby limiting the anti-leakage block 24. When the filter element 5 is replaced, the filter element 5 is removed, and the anti-leakage bracket 22 moves downward under the force of the spring 21 until the sealing plate 222 abuts against the anti-leakage block 24. The sealing gasket 23 of the block abuts against the sealing plate 222, blocking the fuel from the oil inlet bracket 223. At this time, a sealed space is formed in the third chamber 114, thereby preventing the fuel from continuing to flow from the oil inlet bracket 223, and also preventing the fuel from leaking out from non-oil inlet positions.

[0035] See Figure 5 As shown, the anti-leakage block 24 includes a first column 214, a second column 242, and a third column 243 whose outer diameters gradually increase from top to bottom. The second column 242 is interference-fitted with the third cavity 114. The anti-leakage block 24 has a block cavity 244 that runs vertically through the middle. The connecting part is connected to the block cavity 244. Fuel flows to the filter part 52 through the connecting part, so that fuel can enter the filter element 5.

[0036] The diameter of the sealing plate 222 is smaller than the diameter of the third cavity 114, and the diameter of the sealing plate 222 is larger than the diameter of the first column 214. This design helps to better seal the oil inlet when replacing the filter element 5, preventing fuel leakage.

[0037] See Figure 6 As shown, the fuel inlet bracket 223 includes a through portion 2231 located on the side of the fuel inlet bracket 223. The through portion 2231 is placed inside the plug cavity 244, and fuel flows to the filter element 5 through the space between the through portion 2231 and the plug cavity 244. This structure enables smooth fuel intake.

[0038] This embodiment provides an engine filter, including a cover 1, an oil leak prevention component 2, a housing 6, and a filter element 5. The cover 1 includes an oil inlet chamber 11 and an oil outlet chamber 13. The oil leak prevention component 2 is connected to the oil inlet chamber 11. When replacing the filter element 5, the oil leak prevention bracket 22 moves downward under the force of the spring 21, so that the sealing plate 222 abuts against the oil leak prevention block 23, preventing fuel from continuing to flow downward from the oil inlet bracket 223 and avoiding fuel leakage.

[0039] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. An engine filter characterized by, include: The cover body includes an oil inlet chamber and an oil outlet chamber; An oil leak prevention component is placed inside the cover body and communicates with the oil inlet chamber; A housing, which is positioned below the oil leak prevention assembly and connected to the cover; A filter element, which is placed inside the housing and communicates with the oil leak prevention assembly; The oil leak prevention component includes: A leak-proof bracket is placed in the oil inlet chamber, and the leak-proof bracket includes a spring bracket, a sealing plate and an oil inlet bracket arranged in sequence. A spring, which is sleeved on the spring bracket; An anti-leakage block is sleeved on the oil inlet bracket. When the engine filter is working normally, fuel flows through the oil inlet chamber, through the spring bracket, the sealing plate, and the oil inlet bracket, and further flows through the space between the oil inlet bracket and the anti-leakage block to the filter element for fuel filtration. When replacing the filter element, the filter element is removed, and the leak-proof bracket moves downward under the action of the spring until the sealing plate abuts against the leak-proof block, preventing fuel from continuing to flow from the fuel inlet bracket.

2. An engine filter as in claim 1, wherein, The oil inlet chamber includes a first chamber, a second chamber, and a third chamber whose diameters gradually increase from top to bottom. The spring is placed in the second chamber, the leak-proof bracket is placed in the third chamber, and the leak-proof plug is placed in the third chamber and is interference-fitted with the third chamber.

3. An engine filter as claimed in claim 2, wherein The leak-proof plug includes a first column, a second column, and a third column whose outer diameters gradually increase from top to bottom. The second column is interference-fitted with the third cavity. The leak-proof plug has a plug cavity running vertically through the middle.

4. An engine filter as claimed in claim 3, wherein The diameter of the sealing plate is smaller than the diameter of the third cavity, and the diameter of the sealing plate is larger than the diameter of the first column.

5. An engine filter as claimed in claim 4, wherein The fuel inlet bracket includes a through portion located on the side of the fuel inlet bracket. The through portion is placed inside the block cavity, and fuel flows to the filter element through the space between the through portion and the block cavity.

6. An engine filter as claimed in claim 5, wherein The oil leak prevention assembly also includes a plug sealing gasket fitted onto the first column.

7. An engine filter as claimed in claim 6, wherein The cover also includes an exhaust chamber that communicates with the oil outlet chamber.

8. An engine filter as claimed in claim 7, wherein The filter element includes a cover plate that abuts against the leak-proof bracket and a filter section located below the cover plate. The cover plate has a through section extending in the vertical direction. The through section communicates with the block cavity, and fuel flows to the filter section through the through section.

9. An engine filter as claimed in claim 8, wherein, It also includes a nut fitted onto the housing and the cover, the nut being used to fasten the housing and the cover.

10. An engine filter as in claim 9, wherein, The engine filter also includes a housing gasket placed between the cover and the housing.

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