CN211008923U

CN211008923U - Fuel filter

Info

Publication number: CN211008923U
Application number: CN201921893442.8U
Authority: CN
Inventors: 王功珂; 曹立新; 李国军; 秦铎; 毕大鹏; 王凤琦
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-14
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to an automobile fuel filters technical field, discloses a fuel filter. The fuel filter comprises a shell, an oil inlet and an oil outlet are formed in the shell, a first cavity and a second cavity which are communicated are formed in the shell, the first cavity is communicated with the oil outlet, a first filter element is arranged in the first cavity, the second cavity is communicated with the oil inlet, a second filter element is arranged in the second cavity, a water outlet communicated with the second cavity is formed in the shell, and a water drainage assembly used for automatic water drainage is arranged at the water drainage outlet. The fuel filter provided by the utility model is provided with two filter elements to realize the integration of pre-filtering and fine filtering, can filter pollutants such as water and foreign particles in fuel oil, ensure the quality of the fuel oil flowing into a fuel oil system, ensure the normal work of an engine, realize the requirements of weight and cost reduction of a whole vehicle, and save the arrangement space of the whole vehicle; in addition, set up the drainage subassembly of automatic drainage in drain outlet department, replace manual or semi-automatic drainage, improved the convenience.

Description

Fuel filter

Technical Field

The utility model relates to an automobile fuel filters technical field, especially relates to a fuel filter.

Background

The fuel filter is arranged on one side of an inlet of the fuel delivery pump and is used for filtering impurities in fuel. If the quality of the fuel is poor and the impurities contained in the fuel are more, the fuel can damage components such as an oil nozzle, a fuel pump, a fuel pipe and the like in an engine, so that the normal operation of a fuel system is influenced. The fuel filter has the effects of filtering pollutants such as water and foreign particles in fuel oil, reducing the probability of blocking the fuel spray nozzle by the foreign particles and ensuring the quality of the fuel oil flowing into a fuel oil system.

In recent years, due to the promotion of light weight and modular design of trucks, a pre-filtering module and a fine filtering module of a vehicle fuel supply system are required to be integrated on a fuel filter assembly to meet the requirements of weight reduction and cost reduction of the vehicle. Therefore, it is desirable to provide a fuel filter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fuel filter, it strains module in an organic whole to have integrateed prefilter module and essence, has reduced the weight and the cost of whole car.

To achieve the purpose, the utility model adopts the following technical proposal:

the fuel filter comprises a shell, wherein an oil inlet and an oil outlet are formed in the shell, a first cavity and a second cavity which are communicated are formed in the shell, the first cavity is communicated with the oil outlet, a first filter element is arranged in the first cavity, the second cavity is communicated with the oil inlet, a second filter element is arranged in the second cavity, a water outlet communicated with the second cavity is formed in the shell, and a water drainage assembly used for automatic water drainage is arranged at the water drainage outlet.

Preferably, the housing comprises a first housing and a second housing connected with the first housing, the water outlet is arranged on the second housing, and the second housing is a transparent housing.

Preferably, a partition plate is radially arranged in the first housing, and a communication port for communicating the first cavity with the second cavity is formed in the partition plate.

Preferably, a check valve for allowing fuel to flow from the second chamber to the first chamber is installed at the communication port.

Preferably, the first filter element is a straight-through filter element.

Preferably, the cross-sectional shape of the first filter element is rectangular.

Preferably, the second filter element is a bipolar filter element.

Preferably, the drainage assembly comprises a detection piece for detecting the water level and a drainage valve arranged at the drainage port, and the detection piece is arranged in the second cavity.

Preferably, the detection member is a water level sensor.

Preferably, a fixing plate is arranged on the shell, and a fixing hole is formed in the fixing plate.

The utility model has the advantages that: the utility model provides a fuel filter sets up two filter cores and has realized pre-filtering and the integration of essence, can filter pollutants such as water, foreign particle in the fuel, reduces the probability that the fuel sprayer is plugged up by foreign particle, guarantees the quality of the fuel that flows into in the fuel oil system, ensures the normal work of engine to realize whole car and fallen heavy and the demand that falls the cost, saved the arrangement space of whole car; in addition, set up the drainage subassembly of automatic drainage in drain outlet department, replace manual or semi-automatic drainage, improved the convenience.

Drawings

Fig. 1 is a cross-sectional view of a fuel filter according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a cross-sectional view of a second perspective of a fuel filter according to an embodiment of the present invention.

In the figure:

1. a housing; 11. a first housing; 12. a second housing; 13. a partition plate; 14. a one-way valve; 15. a first cavity; 16. a second cavity;

2. an oil inlet; 3. an oil outlet; 4. a first filter element; 5. a second filter element; 6. a water outlet; 7. a drain valve; 8. a fixing plate; 9. and (7) fixing holes.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and 2, the present embodiment provides a fuel filter in which pre-filtration and fine filtration are integrated into one filter and which has an automatic drain function. Specifically, fuel filter includes casing 1, is equipped with oil inlet 2 and oil-out 3 on the casing 1, is equipped with the first cavity 15 and the second cavity 16 of intercommunication in the casing 1, and first cavity 15 communicates with oil-out 3, is equipped with first filter core 4 in the first cavity 15, and second cavity 16 communicates with oil inlet 2, is equipped with second filter core 5 in the second cavity 16, and it has the outlet 6 with the 16 intercommunications of second cavity to open on the casing 1, and 6 departments of outlet are equipped with the drainage subassembly that is used for automatic drainage. The fuel filter provided by the embodiment is provided with the two filter elements, so that the integration of pre-filtering and fine filtering is realized, pollutants such as water, impurity particles and the like in fuel can be filtered, the probability that an oil nozzle is blocked by the impurity particles is reduced, the quality of the fuel flowing into a fuel system is ensured, the normal work of an engine is ensured, the requirements of weight reduction and cost reduction of a finished vehicle are realized, and the arrangement space of the finished vehicle is saved; in addition, a drainage assembly for automatically draining water is arranged at the drainage port 6 to replace manual or semi-automatic drainage, so that convenience is improved.

In the present embodiment, the housing 1 includes a first housing 11 and a second housing 12, and the second housing 12 is connected to the first housing 11. A partition plate 13 is arranged in the first shell 11 along the radial direction, and the partition plate 13 divides the shell 1 into

The first cavity 15 and the second cavity 16, and the second cavity 16 is formed by the second housing 12 and part of the interior of the first housing 11. The partition plate 13 is provided with a communication port, a check valve 14 is installed at the communication port, and the check valve 14 enables fuel to flow from the second cavity 16 to the first cavity 15. The provision of the one-way valve 14 avoids the problem of fuel starvation caused by fuel flowing back into the second chamber 16.

The second filter element 5 is arranged in the second cavity 16, the second filter element 5 is a bipolar filter element, and primary filtration and secondary filtration are realized, namely oil-water separation and primary filtration of impurities in fuel oil are realized. The oil inlet 2 is opened on the lateral wall of first casing 11, and the direction that the fuel flows in the oil inlet 2 is perpendicular with the axial of second filter core 5, and in the fuel flowed into second filter core 5 through oil inlet 2, through the filtration of second filter core 5, the prefiltration of oil-water separation and impurity has been realized, and water flows to the bottom of second casing 12 under the action of gravity, and the fuel through the prefiltration enters into first cavity 15. The second filter element 5 is arranged, so that two-stage filtration is realized, the structure of a fuel oil filtration system is simplified, and the filtration cost is reduced.

In this embodiment, the second housing 12 is a transparent housing that facilitates viewing of the clogging condition of the second filter cartridge 5 and viewing of the water level within the second housing 12. The water outlet 6 is arranged at the bottom of the second shell 12, which is helpful for the fuel filter to efficiently discharge water in time.

In order to realize automatic drainage of the fuel filter, a drainage component is arranged at the drainage port 6. In this embodiment, the drain assembly includes a detection member for detecting a water level, preferably a water level sensor, which is disposed in the second chamber 16. The drainage outlet 6 is provided with a drainage valve 7, the detection piece and the drainage valve 7 are electrically connected with the automobile control system, when the detection piece detects that the water level in the second cavity 16 reaches a limit value, data can be transmitted to the automobile control system, the automobile control system can send an alarm signal to prompt a driver and control the drainage valve 7 to open drainage at the same time, and after drainage is finished, the automobile control system controls the drainage valve 7 to be closed, so that automatic drainage of the filter is realized. Whether the water in the second chamber 16 is completely discharged or not can be fed back by arranging a water level sensor for detecting a low limit position in the second chamber 16, and the drain valve 7 can be closed by setting a drain time, which is not limited herein.

The fuel enters the first cavity 15 after being filtered by the second filter element 5 and is subjected to three-stage filtration by the first filter element 4, the first filter element 4 is a straight-through filter element, and the cross section of the first filter element 4 is rectangular. Adopt directly to filter the flow direction that the filter core made fuel pass through first filter core 4 for the straight line, greatly improved the separation efficiency of solid particle and fuel, the cross-section of first filter core 4 is the rectangle, and filter area is big. Further, the oil outlet 3 is formed in the first shell 11 and is arranged above the first filter element 4, so that the fuel oil is discharged after being fully filtered, and the quality of the fuel oil is further improved.

The fuel filter needs to be fixedly installed in the automobile, so the shell 1 is also provided with a fixing plate 8, and the fixing plate 8 is provided with a fixing hole 9. The fixing plate 8 protrudes out of the shell 1, the fixing part penetrates through the fixing hole 9 to be connected with parts in the automobile, and the installation and the disassembly are convenient. In the present embodiment, the fixing plate 8 is provided on the first housing 11 to fixedly connect the upper portion of the fuel filter to the components in the vehicle without affecting the drainage of the drain port 6.

The fuel filter that this embodiment provided not only reduces the cost, has still improved filtration efficiency, has saved the arrangement space of whole car, has reduced the cost and the weight of whole car, ensures that the engine normally works.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a fuel filter, includes casing (1), be equipped with oil inlet (2) and oil-out (3) on casing (1), its characterized in that, be equipped with first cavity (15) and second cavity (16) of intercommunication in casing (1), first cavity (15) with oil-out (3) intercommunication, be equipped with first filter core (4) in first cavity (15), second cavity (16) with oil inlet (2) intercommunication, be equipped with second filter core (5) in second cavity (16), casing (1) go up open have with outlet (6) of second cavity (16) intercommunication, outlet (6) department is equipped with the drainage subassembly that is used for automatic drainage.

2. The fuel filter according to claim 1, characterized in that the housing (1) comprises a first housing (11) and a second housing (12) connected to the first housing (11), the drain opening (6) opening onto the second housing (12), the second housing (12) being a transparent housing.

3. The fuel filter according to claim 2, characterized in that a partition (13) is radially arranged in the first housing (11), and the partition (13) is provided with a communication port for communicating the first cavity (15) with the second cavity (16).

4. A fuel filter according to claim 3 wherein the communication port is fitted with a one-way valve (14) for allowing fuel to flow from the second chamber (16) to the first chamber (15).

5. The fuel filter according to claim 1, characterized in that the first filter element (4) is a straight-through filter element.

6. A fuel filter according to claim 5 wherein the first filter element (4) is rectangular in cross-sectional shape.

7. The fuel filter according to claim 1, characterized in that the second filter element (5) is a bipolar filter element.

8. The fuel filter according to claim 1, characterized in that the drain assembly comprises a detection member for detecting the water level and a drain valve (7) arranged at the drain opening (6), the detection member being arranged in the second chamber (16).

9. The fuel filter of claim 8 wherein the sensing element is a water level sensor.

10. The fuel filter according to claim 1, characterized in that the housing (1) is provided with a fixing plate (8), and the fixing plate (8) is provided with a fixing hole (9).