CN210634387U

CN210634387U - Gasoline isolation device for fuel tank

Info

Publication number: CN210634387U
Application number: CN201920880437.7U
Authority: CN
Inventors: 朱天楷; 王敬超; 朱植永; 祁振宁; 赵承; 王梦洋; 邹志东; 王佳
Original assignee: Dongfeng Yapp Automotive Parts Co ltd
Current assignee: Dongfeng Yapp Automotive Parts Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-05-29
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to the technical field of fuel tanks, and discloses a gasoline isolation device for a fuel tank, which is arranged between the fuel tank and a carbon tank and comprises a cache box, an oil-gas isolation plate arranged inside the cache box and a cover plate for sealing the cache box, wherein the oil-gas isolation plate is transversely arranged to divide the space formed by the cache box and the cover plate into an upper layer and a lower layer; a first interface connected with a fuel tank and a second interface connected with a carbon tank are respectively arranged at two sides of the cache box, the first interface is communicated to the lower layer in the cache box, and the second interface is communicated to the upper layer; the oil-gas separation plate is provided with a vent hole for communicating the lower layer with the upper layer. The utility model discloses an adopt the buffer memory box to carry out the buffer memory to fuel vapor and fuel mixture among the petrol isolating device for the fuel tank, cut apart with the oil gas division board in the buffer memory box, fuel vapor gets into the carbon tank through the buffer memory box, and the fuel of fuel and oil vapor condensation flows back to the fuel tank in, can effectively keep apart the fuel of car fuel tank valve body kneck and prevent to flow in the carbon tank to alleviate the carbon tank burden, reduce carbon tank maintenance number of times.

Description

Gasoline isolation device for fuel tank

Technical Field

The utility model relates to an oil tank technical field specifically indicates a petrol isolating device for fuel tank.

Background

The fuel tank has the most basic function of fuel storage, and fuel is easy to volatilize, fire and explode, so that the fuel tank is required not to leak fuel under any state. However, during the movement of the vehicle, a large amount of fuel vapor is generated in the fuel tank, and the fuel vapor flows to the canister together with the fuel. The existing valve body parts cannot realize zero leakage, and in order to ensure the reliable function of an automobile fuel system, fuel oil dynamically leaked from a fuel oil tank or fuel oil statically leaked from the fuel oil tank needs to be isolated.

In this regard, the addition of fuel isolation components to the fuel tank can effectively inhibit fuel from entering the canister, thereby resulting in a longer canister life and thus providing more efficient and economical fuel and vapor separation components that are highly beneficial.

Disclosure of Invention

An object of the utility model is to provide a petrol isolating device for fuel tank can keep apart the fuel of car fuel tank valve body kneck and prevent to flow into the carbon tank.

In order to achieve the purpose, the gasoline isolating device for the fuel tank is arranged between the fuel tank and the carbon tank, the gasoline isolating device comprises a cache box, an oil-gas isolating plate and a cover plate, wherein the oil-gas isolating plate is installed inside the cache box, the cover plate is used for sealing the cache box, and the space formed by the cache box and the cover plate is divided into an upper layer and a lower layer by the oil-gas isolating plate along the transverse arrangement; a first interface connected with a fuel tank and a second interface connected with a carbon tank are respectively arranged on two sides of the cache box, the first interface is communicated to the lower layer separated by the oil-gas separation plate in the cache box, and the second interface is communicated to the upper layer separated by the oil-gas separation plate in the cache box; and the oil-gas isolating plate is provided with a vent hole for communicating the lower layer and the upper layer in the cache box.

Preferably, a buffer box partition plate and a fuel backflow slope are arranged in the buffer box, the buffer box partition plate is longitudinally arranged on the lower layer and located between the first interface and the second interface, and the fuel backflow slope is inclined downwards from the lower edge of the buffer box partition plate to the first interface.

As a preferred scheme, a backflow hole for communicating the lower layer with the upper layer is formed in the oil-gas isolation plate, and the backflow hole is located above the fuel oil backflow slope.

As a preferred scheme, the backflow holes are distributed above the fuel backflow slope in a matrix arrangement mode, and a confluence guide plate which is guided and converged towards the backflow holes is arranged on the periphery of the backflow hole matrix.

Preferably, a cover plate partition plate is arranged on the lower surface of the cover plate along the longitudinal direction, and the cover plate partition plate is located on the upper layer and is arranged between the vent hole and the second interface.

The utility model has the advantages that: the utility model discloses an adopt the buffer memory box to carry out the buffer memory to fuel vapor and fuel mixture among the petrol isolating device for the fuel tank, cut apart with the oil gas division board in the buffer memory box, fuel vapor gets into the carbon tank through the buffer memory box, and the fuel of fuel and oil vapor condensation flows back to the fuel tank in, can effectively keep apart the fuel of car fuel tank valve body kneck and prevent to flow in the carbon tank to alleviate the carbon tank burden, reduce carbon tank maintenance number of times.

Drawings

Fig. 1 is an exploded schematic view of a gasoline isolation device for a fuel tank according to a preferred embodiment of the present invention.

FIG. 2 is a schematic view of another perspective exploded view of the gasoline spacer for the fuel tank of FIG. 1.

Fig. 3 is a plan view of the gasoline spacer for the fuel tank in fig. 2.

Fig. 4 is a cross-sectional view of the steps taken along the X-X direction in fig. 3.

The components in the figures are numbered as follows: a buffer box A (wherein, a buffer box clapboard 1, a fuel backflow slope 2, a first interface 3 and a second interface 4); an oil-gas isolation plate B (wherein, a reflux hole 5, a confluence guide plate 5a and a vent hole 6); cover C (among others, cover spacer 7).

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

In order to overcome above-mentioned background art not enough, the utility model discloses a petrol isolating device for fuel tank can conveniently keep apart the fuel inflow carbon tank of car fuel tank valve body kneck, and it is including the buffer memory box A who is convenient for collect petrol and petrol steam, and buffer memory box A is sealed by apron C behind the inside assembly of buffer memory box A has oil gas division board B, and oil gas division board B becomes lower floor and upper strata with the space separation that buffer memory box A and apron C formed, as shown in figure 1 and figure 2. The buffer box A can be sealed by welding or assembling the cover plate C and the buffer box A.

Referring to fig. 3 and 4, a buffer box partition 1 and a fuel backflow slope 2 are disposed inside the buffer box a, and a first connector 3 connected to a valve body of a fuel tank and a second connector 4 connected to a canister are disposed on two sides of the buffer box a, respectively. The buffer box partition plate 1 is longitudinally arranged between the first connector 3 and the second connector 4, plays a role in cutting off the first connector 3 and the second connector 4, and is mainly used for blocking and collecting fuel oil and fuel oil generated by condensation of fuel oil steam. The fuel backflow slope 2 inclines downwards from the lower edge of the buffer box partition plate 1 to the first connector 3, so that fuel blocked by the buffer box partition plate 1 can conveniently flow back to the fuel tank through the first connector 3. The first interface 3 and the second interface 4 of the buffer box A are ingenious in design, the height difference h is designed between the second interface 4 and the first interface 3, namely the axis of the second interface 4 is higher than the axis of the first interface 3 by h, the first interface 3 is communicated to the lower layer separated by the oil-gas separation plate B in the buffer box A, the second interface 4 is communicated to the upper layer separated by the oil-gas separation plate B in the buffer box A, and the fuel can be effectively prevented from flowing into the second interface 4. The mixture of the oil vapor and the fuel enters the buffer box A through the first interface 1, the fuel returns to the fuel tank through the first interface 2 after being blocked by the buffer box partition plate 1 and the fuel return slope 2, and the oil vapor is led to the carbon tank through the second interface 4. The buffer box A can collect part of fuel which is shaken and overflowed from the fuel tank, and can also collect fuel which is generated by condensing fuel vapor. The cache box A can be made into a universal size, so that the design is platform-based and the cost is more excellent

The oil-gas separation plate B transversely divides a space formed by covering the cache box A and the cover plate C into an upper layer and a lower layer, and separates fuel oil from the lower layer to enter the upper layer, so that fuel oil steam enters the upper layer from the lower layer and condensed fuel oil steam flows back to the lower layer. And the oil-gas separation plate B is provided with a return hole 5 and a vent hole 6 which are communicated with the upper layer and the lower layer. The return port 5 is the matrix arrangement, arranges in the top on fuel backward flow slope 2, and the 5 matrixes in return port are equipped with all around towards the 5 drainage of return port guide plates 5a that converge that assemble, make things convenient for the fuel of condensation and rock the quick buffer memory box A of fuel that overflows. The vent hole 6 communicates the lower layer and the upper layer in the buffer memory box A, and the ventilation capacity of the buffer memory box A is increased, so that the oil tank of the buffer memory box A is smooth enough in the oil filling process. The oil-gas separation plate B can be of different structures according to the requirements of customers on ventilation capacity, can be changed into various types, meets various requirements of customers, is convenient to replace at any time, and is simple in structure and low in cost.

Also be equipped with apron baffle 7 on apron C's the lower surface, apron baffle 7 is along vertically setting up between air vent 6 and second interface 4, can the separation rock the in-process fuel and spill over, improves the efficiency of separation fuel.

When the fuel vapor passes through the cache box A through the first interface 3, the fuel vapor can be condensed and collected into fuel, and the fuel flows back to the fuel tank. When the fuel tank is filled with fuel, fuel steam can quickly pass through the buffer box A, so that the filling is smoother. When the fuel tank shakes to overflow fuel, the fuel can be collected in the buffer box A and flows back to the fuel tank.

The gasoline isolation device for the fuel tank can be fixed on the fuel tank, also can be fixed on a vehicle body, can be formed by metal die-casting and can also be made of high polymer materials, for example, the gasoline isolation device is formed by injection molding of fuel-resistant engineering plastics PA series, POM and the like, has a simple structure, is convenient to use, is suitable for all metal fuel tanks or plastic fuel tanks, can be used by both national 6 projects and national 5 projects, exhausts smoothly, and has high fuel isolation efficiency, convenience and reliability.

Compared with the prior art, the utility model discloses a petrol isolating device for fuel tank has following advantage at least: the gasoline isolating device for the fuel tank has high isolating efficiency, can quickly separate oil and gas, and can quickly return the isolated fuel oil to the fuel tank; fuel at the interface of the automobile fuel tank valve body can be conveniently isolated from flowing into the carbon tank, the burden of the carbon tank can be relieved, and the maintenance frequency of the carbon tank can be reduced; when the automobile is parked at a slope, fuel oil cannot overflow, so that the automobile is safer.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A gasoline isolating device for a fuel tank is characterized in that: the gasoline isolation device is arranged between a fuel tank and a carbon tank and comprises a cache box (A), an oil-gas isolation plate (B) and a cover plate (C), wherein the oil-gas isolation plate (B) is arranged inside the cache box (A), and the cover plate (C) is used for sealing the cache box (A), and the oil-gas isolation plate (B) is transversely arranged to divide a space formed by the cache box (A) and the cover plate (C) into an upper layer and a lower layer; a first interface (3) connected with a fuel tank and a second interface (4) connected with a carbon tank are respectively arranged on two sides of the cache box (A), the first interface (3) is communicated to the lower layer of the cache box (A) separated by the oil-gas separation plate (B), and the second interface (4) is communicated to the upper layer of the cache box (A) separated by the oil-gas separation plate (B); and the oil-gas isolating plate (B) is provided with a vent hole (6) for communicating the lower layer and the upper layer in the cache box (A).

2. The gasoline spacer for a fuel tank according to claim 1, wherein: be provided with buffer memory box baffle (1) and fuel backward flow slope (2) in buffer memory box (A), buffer memory box baffle (1) along vertical setting in the lower floor and be located first interface (3) with between second interface (4), fuel backward flow slope (2) certainly the lower edge downward sloping of buffer memory box baffle (1) extremely first interface (3) department.

3. The gasoline spacer for a fuel tank according to claim 2, wherein: and the oil-gas isolating plate (B) is provided with a backflow hole for communicating the lower layer with the upper layer, and the backflow hole (5) is positioned above the fuel backflow slope (2).

4. The gasoline spacer for a fuel tank according to claim 3, wherein: the return holes (5) are distributed above the fuel oil return slope (2) in a matrix arrangement mode, and a confluence guide plate (5a) which is converged towards the return holes (5) in a drainage mode is arranged around the return holes (5) in the matrix.

5. The gasoline spacer for a fuel tank according to any one of claims 1 to 4, wherein: the lower surface of the cover plate (C) is longitudinally provided with a cover plate partition plate (7), and the cover plate partition plate (7) is positioned on the upper layer and is arranged between the vent hole (6) and the second connector (4).