Filter element with independent exhaust channel and return oil heating channel

Abstract

The utility model discloses a filter element with an independent exhaust channel and an independent oil return heating channel, an exhaust cavity and an oil return cavity are formed by a first sealing element, a second sealing element and a lower cover, the lower cover is provided with a plurality of oil return holes, and fuel oil in the oil return heating channel enters the oil return cavity through an oil return inlet. And then fuel oil of the oil return hole and fuel oil of the main oil way are converged and filtered together through the filtering medium, the structure is simpler, only one filtering medium is needed, the filtering area of the filtering medium is increased, and therefore the system resistance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a filter element with an independent exhaust passage and an oil return heating passage. Background Art

[0002] It is a professional term for the function of filtration and purification. In order to purify the resources of the original fluid and the simple device for resource separation, filter elements are mainly used in filtration industries such as oil filtration, air filtration, and water filtration. And an oil filter element is installed at the front end of an automobile engine. Currently, for a filter element with an independent exhaust and an oil return heating passage, the fuel in the oil return passage and the main oil circuit needs to be separately filtered through an oil return filter element and a main filter element respectively. The structure of the filter element is complex, and the fuel in the oil return passage is filtered repeatedly, resulting in an increase in system resistance. Therefore, an improved technology is urgently needed to solve the above problems existing in the prior art. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a filter element with an independent exhaust passage and an oil return heating passage, which only passes through one filtering medium, thereby reducing the system resistance, so as to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A filter element with an independent exhaust passage and an oil return heating passage, comprising an upper cover, a lower cover, a cylindrical skeleton, a first seal, a second seal and a filtering medium. The top end of the cylindrical skeleton is connected to the upper cover. A long sleeve is arranged on the lower surface of the upper cover. A first air hole is opened at the top of the upper cover located in the sleeve. The bottom end of the cylindrical skeleton is inserted into the first seal. A short sleeve is arranged on the upper surface of the first seal. A second air hole is opened in the first seal located in the short sleeve. The positions of the short sleeve and the long sleeve correspond to each other. An exhaust pipe is connected between the long sleeve and the short sleeve. A second seal is arranged inside the first seal. An outer folded edge is arranged around the bottom of the second seal. The bottom of the cylindrical skeleton is supported on the outer folded edge of the second seal. An exhaust cavity is formed between the first seal and the second seal. An oil return cavity is formed between the second seal and the lower cover. Central holes are opened at the central positions of the first seal, the second seal and the lower cover. A first sealing ring is arranged in the central hole of the first seal. A second sealing ring is arranged in the central hole of the second seal. A third sealing ring is arranged in the central hole of the lower cover. The lower cover is evenly provided with oil return holes in a ring centered on the central hole. The filtering medium is arranged between the upper cover and the lower cover and outside the cylindrical skeleton.

[0005] Preferably, for a filter element with an independent exhaust passage and an oil return heating passage provided by the utility model, a plurality of buckles are arranged on the upper surface of the upper cover.

[0006] Preferably, a filter element with an independent exhaust passage and an oil return heating passage provided by the present utility model, wherein the inner diameter of the first sealing ring is smaller than that of the second sealing ring, and the inner diameter of the second sealing ring is smaller than that of the third sealing ring.

[0007] Preferably, a filter element with an independent exhaust passage and an oil return heating passage provided by the present utility model, wherein a peripheral edge is provided on the outer periphery of both the upper cover and the lower cover. The peripheral edge of the upper cover wraps around the upper part of the filter medium and is bonded by adhesive, and the peripheral edge of the lower cover wraps around the lower part of the filter medium and is bonded by adhesive.

[0008] Preferably, a filter element with an independent exhaust passage and an oil return heating passage provided by the present utility model, wherein a limiting ring is provided on the upper surface of the lower cover, and the side walls of the first sealing member and the second sealing member are clamped between the limiting ring and the cylindrical skeleton.

[0009] Preferably, a filter element with an independent exhaust passage and an oil return heating passage provided by the present utility model, wherein two protrusions are provided on the outer surface of the exhaust pipe, and the protrusions of the exhaust pipe are respectively arranged in the long sleeve and the short sleeve.

[0010] Preferably, a filter element with an independent exhaust passage and an oil return heating passage provided by the present utility model, wherein both the first sealing member and the second sealing member are of a cylindrical structure and have an open bottom.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] An exhaust cavity and an oil return cavity are formed by the first sealing member, the second sealing member and the lower cover. The lower cover is provided with a plurality of oil return holes. The fuel in the oil return heating passage enters the oil return cavity through the oil return inlet, and then merges with the fuel in the main oil passage through the oil return holes and is filtered together through the filter medium. The structure is simpler, only passing through one filter medium, and the filtering area of the filter medium is increased, thereby reducing the system resistance. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the lower cover;

[0015] Figure 3 is a schematic diagram of the oil flow state of the present utility model.

[0016] In the figure: upper cover 1, lower cover 2, cylindrical skeleton 3, first seal 4, second seal 5, filter medium 6, long sleeve 7, first air hole 8, short sleeve 9, second air hole 10, exhaust pipe 11, exhaust cavity 12, oil return cavity 13, first sealing ring 14, second sealing ring 15, third sealing ring 16, oil return hole 17, buckle 18, adhesive 19, limit ring 20, protrusion 21, outer shell 22, oil return inlet 23, total oil inlet 24, oil outlet 25, exhaust port 26, outer flanging 27. Detailed implementation mode

[0017] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] It should be noted that in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] Please refer to Figure 1-2, the present utility model provides a technical solution: a filter element with an independent exhaust passage and an oil return heating passage, which includes an upper cover 1, a lower cover 2, a cylindrical skeleton 3, a first seal 4, a second seal 5 and a filter medium 6. The top of the cylindrical skeleton 3 is connected to the upper cover 1. A long sleeve 7 is provided on the lower surface of the upper cover 1. A first air hole 8 is provided at the top of the upper cover 1 within the sleeve. A number of buckles 18 are provided on the upper surface of the upper cover 1 to achieve mutual clamping with the top inside the outer shell 22. The bottom of the cylindrical skeleton 3 is inserted into the first seal 4. A short sleeve 9 is provided on the upper surface of the first seal 4. A second air hole 10 is provided within the short sleeve 9 of the first seal 4. The position of the short sleeve 9 corresponds to that of the long sleeve 7. An exhaust pipe 11 is connected between the long sleeve 7 and the short sleeve 9. Two protrusions 21 are provided on the outer surface of the exhaust pipe 11. The protrusions 21 of the exhaust pipe 11 are respectively arranged within the long sleeve 7 and the short sleeve 9 to ensure the connection of the exhaust pipe 11 with the long sleeve 7 and the short sleeve 9, and at the same time ensure the sealing performance at the connection of the exhaust pipe 11 with the long sleeve 7 and the short sleeve 9. A second seal 5 is provided inside the first seal 4. An outer folded edge 27 is provided on the periphery of the bottom of the second seal 5. The bottom of the cylindrical skeleton 3 is supported on the outer folded edge 27 of the second seal 5. Both the first seal 4 and the second seal 5 are of a cylindrical structure and have an open bottom to achieve the mating connection of the first seal 4 and the second seal 5. An exhaust cavity 12 is formed between the first seal 4 and the second seal 5. An oil return cavity 13 is formed between the second seal 5 and the lower cover 2. Central holes are provided at the central positions of the first seal 4, the second seal 5 and the lower cover 2. A first sealing ring 14 is provided in the central hole of the first seal 4. A second sealing ring 15 is provided in the central hole of the second seal 5. A third sealing ring 16 is provided in the central hole of the lower cover 2. The inner diameter of the first sealing ring 14 is smaller than the inner diameter of the second sealing ring 15, and the inner diameter of the second sealing ring 15 is smaller than the inner diameter of the third sealing ring 16 to respectively achieve the installation of the oil return inlet 23, the oil outlet 25 and the exhaust port 26. A limiting ring 20 is provided on the upper surface of the lower cover 2. The side walls of the first seal 4 and the second seal 5 are clamped between the limiting ring 20 and the cylindrical skeleton 3, thereby realizing the fastening installation of the first seal 4 and the second seal 5. The lower cover 2 is provided with oil return holes 17 evenly in a ring centered on the central hole. A filter medium 6 is provided between the upper cover 1 and the lower cover 2 and outside the cylindrical skeleton 3. Peripheral edges are provided on the peripheries of the upper cover 1 and the lower cover 2. The peripheral edge of the upper cover 1 wraps around the upper part of the filter medium 6 and is bonded by an adhesive 19. The peripheral edge of the lower cover 2 wraps around the lower part of the filter medium 6 and is bonded by an adhesive 19, thereby realizing the connection between the filter medium 6 and the upper cover 1 and the lower cover 2.

[0020] Installation method and working principle: Slip the filter medium 6 over the outside of the cylindrical frame 3, then fit the upper cover 1 over the upper part of the cylindrical frame 3, insert the air pipe into the long sleeve 7, then press the first seal 4 into the bottom inside of the cylindrical frame 3 and insert the bottom of the air pipe into the short sleeve 9. Subsequently, press the second seal 5 into the first seal 4, and then press the lower cover 2 against the bottom of the second seal 5. At the same time, connect the bottom of the filter medium 6 to the lower cover 2 to complete the assembly. Before use, install the filter element into the housing 22. The top of the filter element is connected to the housing through the buckle 18. The housing 22 is respectively provided with an oil return inlet 23, a total oil inlet 24, an oil outlet 25 and an exhaust port 26. The oil outlet 25 passes through the third seal ring 16, the second seal ring 15 and the first seal ring 14 in sequence and extends into the cylindrical frame 3. The total oil inlet 24 is located on one side of the housing 22. The oil return inlet 23 passes between the third seal ring 16 and the oil outlet 25 and communicates with the oil return cavity 13. The exhaust port 26 passes between the oil return inlet 23 and the oil outlet 25 and communicates with the exhaust cavity 12 in the oil return cavity 13. During operation, the fuel in the oil return heating channel enters the oil return cavity 13 through the oil return inlet 23, then enters the housing 22 through the oil return hole 17, then merges with the fuel in the main oil path and is filtered together through the filter medium 6, and enters the engine from the oil outlet 25, as Figure 3 shown. The filter medium 6 is filter paper, felt or polymer material, etc., mainly used for filtering impurities in the oil. The structure of the present utility model is reasonable. The exhaust cavity 12 and the oil return cavity 13 are formed by the first seal 4, the second seal 5 and the lower cover 2. The lower cover 2 is provided with a number of oil return holes 17. The fuel in the oil return heating channel enters the oil return cavity 13 through the oil return inlet 23, then merges with the fuel in the main oil path through the oil return holes 17 and is filtered together through the filter medium 6. The structure is simpler, only passing through one filter medium 6, and the filtering area of the filter medium 6 is increased, thereby reducing the system resistance.

[0021] For the parts not detailed in the present utility model, they are all well-known technologies to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A filter element with an independent exhaust passage and an oil return heating passage, characterized in that: It includes an upper cover (1), a lower cover (2), a cylindrical skeleton (3), a first seal (4), a second seal (5) and a filter medium (6). The top of the cylindrical skeleton (3) is connected to the upper cover (1). A long sleeve (7) is provided on the lower surface of the upper cover (1). A first air hole (8) is provided at the top of the upper cover (1) where the sleeve is located. The bottom of the cylindrical skeleton (3) is inserted into the first seal (4). A short sleeve (9) is provided on the upper surface of the first seal (4). A second air hole (10) is provided in the first seal (4) within the short sleeve (9). The positions of the short sleeve (9) and the long sleeve (7) correspond to each other. An exhaust pipe (11) is connected between the long sleeve (7) and the short sleeve (9). A second seal (5) is provided inside the first seal (4). An outer flanging (27) is provided around the bottom of the second seal (5). The bottom of the cylindrical skeleton (3) is supported on the outer flanging (27) of the second seal (5). An exhaust cavity (12) is formed between the first seal (4) and the second seal (5). An oil return cavity (13) is formed between the second seal (5) and the lower cover (2). Central holes are provided at the central positions of the first seal (4), the second seal (5) and the lower cover (2). A first sealing ring (14) is provided in the central hole of the first seal (4). A second sealing ring (15) is provided in the central hole of the second seal (5). A third sealing ring (16) is provided in the central hole of the lower cover (2). Oil return holes (17) are evenly provided in a ring shape with the central hole of the lower cover (2) as the center. A filter medium (6) is provided between the upper cover (1) and the lower cover (2) and outside the cylindrical skeleton (3).

2. The filter element with an independent exhaust passage and an oil return heating passage according to claim 1, wherein: A number of buckles (18) are provided on the upper surface of the upper cover (1).

3. The filter element with an independent exhaust passage and an oil return heating passage according to claim 1, wherein: The inner diameter of the first sealing ring (14) is smaller than the inner diameter of the second sealing ring (15), and the inner diameter of the second sealing ring (15) is smaller than the inner diameter of the third sealing ring (16).

4. The filter element with an independent exhaust passage and an oil return heating passage according to claim 1, wherein: Perimeters are provided around the upper cover (1) and the lower cover (2). The perimeter of the upper cover (1) wraps the upper part of the filter medium (6) and is bonded by an adhesive (19). The perimeter of the lower cover (2) wraps the lower part of the filter medium (6) and is bonded by an adhesive (19).

5. A filter element with an independent exhaust passage and an oil return heating passage according to claim 1, characterized in that: A limit ring (20) is provided on the upper surface of the lower cover (2). The side walls of the first seal (4) and the second seal (5) are clamped between the limit ring (20) and the cylindrical skeleton (3).

6. The filter element with an independent exhaust passage and an oil return heating passage according to claim 1, characterized in that: Two protrusions (21) are provided on the outer surface of the exhaust pipe (11). The protrusions (21) of the exhaust pipe (11) are respectively provided within the long sleeve (7) and the short sleeve (9).

7. The filter element with an independent exhaust passage and an oil return heating passage according to claim 1, characterized in that: Both the first seal (4) and the second seal (5) are of a cylindrical structure and have an open bottom.

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