CN201003454Y

CN201003454Y - Electric fuel pump assembly

Info

Publication number: CN201003454Y
Application number: CNU2007201063126U
Authority: CN
Inventors: 薛肇江; 陈松庭
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-03
Filing date: 2007-02-03
Publication date: 2008-01-09
Anticipated expiration: 2017-02-03

Abstract

The utility model relates to an electric oil fuel pump assembly, which comprises a shell, an electric oil fuel pump arranged in the shell, a pressure regulating valve, an electric oil fuel pump oil inlet screen and a capping with an oil supply port. A droppable fuel tank is sleeved onto the shell and the pressure regulating valve is arranged in the clearance that is formed by shell and droppable fuel tank, while a venturi part is also arranged in the droppable fuel tank; a fine filter is also arranged in the shell and the oil outlet of the electric oil fuel pump is communicated with the inlet of the fine filer, while the inlet and oil supply port of pressure regulating valve is communicated with the outlet of the fine filter and the outlet of pressure regulating valve is communicated with the inlet of the venturi part. The utility model has the beneficial effects as follows: have no external oil return pipeline so as to simplify the oil return pipeline and reduce power loss; the venturi part converts the energy of the oil return fluid into suction so as to suck the fuel oil from the auto oil tank to the droppable fuel tank so as to further increase the efficiency of the electric oil fuel pump assembly; the fine filter makes the cleanliness of delivered fuel oil better. The utility model has the advantages of compact structure, diverse functions, low cost and high efficiency.

Description

Electric fuel pump assembly

Technical field

The utility model relates to a kind of electric automotive fuel pump, relates in particular to a kind of electric fuel pump assembly.

Background technique

At present, the electric automotive fuel oil pump assembly generally comprises housing, is located at electric fuel punp, filler opening filter screen in the housing, what have also is provided with pressure regulator valve outside housing, as the patent No. is ZL200420017305.5, the utility model patent that name is called " fuel pump of band pressure regulator valve " provides a kind of and the comparatively approaching prior art of the utility model, its structure comprise housing, fuel pump, connection bearing, fuel feed pipe, fuel pump output tube, be arranged on the pressure regulator valve that connects on the bearing, the return flow oil pipe is communicated with pressure regulator valve.The structure of this fuel oil pump assembly is not compact, and function is incomplete.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of compact structure is provided, and multiple functional electric fuel pump assembly.

To achieve these goals, technical solution of the present utility model is such: electric fuel pump assembly, comprise housing, be located at the electric fuel punp in the housing, pressure regulator valve, electric fuel punp filler opening filter screen and the top cover that is provided with oil-feed port, sheathed drop tank outside housing, pressure regulator valve is located in the gap that is made of housing and drop tank, in drop tank, also be provided with venturi tube part, in housing, also be provided with secondary filter, the oil outlet of electric fuel punp is communicated with the import of secondary filter, the import of pressure regulator valve and oil-feed port are communicated with the outlet of secondary filter, and the outlet of pressure regulator valve is communicated with the import of venturi tube part.

The beneficial effects of the utility model are: be provided with parts such as drop tank, venturi tube part, secondary filter and pressure regulator valve owing to concentrate in the electric fuel pump assembly, venturi tube part is directly arrived in the oil return of built-in pressure regulator valve, do not have outside return line, simplified return line and power loss; Venturi tube part changes into suction to the energy of oil return fluid, and fuel oil is drawn onto drop tank from automotive oil tank, has further improved the efficient of electric fuel pump assembly; Secondary filter makes the turbidity test of output fuel oil better.In sum, the utlity model has compact structure, multiple functional, cost is low, efficient is high advantage.

Description of drawings

Fig. 1 is a work schematic representation of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the B-B partial sectional view (pressure regulator valve) of Fig. 2;

Fig. 4 is the C-C sectional view of Fig. 2.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Figure 1-3, electric fuel pump assembly, comprise housing 1, be located at the electric fuel punp 2 in the housing 1, pressure regulator valve 3, electric fuel punp filler opening filter screen 4 and the top cover 6 that is provided with oil-feed port 5, sheathed drop tank 7 outside housing 1, pressure regulator valve 3 is located in the gap that is made of housing 1 and drop tank 7, in drop tank 7, also be provided with venturi tube part 8, in housing 1, also be provided with secondary filter 9, the oil outlet 15 of electric fuel punp 2 is communicated with the import 16 of secondary filter 9, the import 17 of pressure regulator valve 3 and oil-feed port 5 are communicated with the outlet 18 of secondary filter 9, and the outlet 19 of pressure regulator valve 3 is communicated with the import 20 of venturi tube part 8.On the outer wall of drop tank 7, also be provided with fuel level sensor parts 10.Secondary filter 9 places the kidney slot 12 of housing 1 for the semilune cylinder, and kidney slot 12 is located at the outside of electric fuel punp 2, and structure is very compact.Be provided with the one-way valve that comprises the valve block 11 of pestering in the bottom of drop tank 7, the fuel oil in the drop tank 7 can not flowed back in the automotive oil tank, guarantee that automobile can also cruising when low oil level.Top cover 6 is connected with drop tank 7 axial elasticities are flexible, and this structure comprises guide rod 13 and spring 14.

Claims

1, electric fuel pump assembly, comprise housing, be located at electric fuel punp, pressure regulator valve, the electric fuel punp filler opening filter screen in the housing and be provided with the top cover of oil-feed port, it is characterized in that: sheathed drop tank outside housing, pressure regulator valve is located in the gap that is made of housing and drop tank, in drop tank, also be provided with venturi tube part, in housing, also be provided with secondary filter, the oil outlet of electric fuel punp is communicated with the import of secondary filter, the import of pressure regulator valve and oil-feed port are communicated with the outlet of secondary filter, and the outlet of pressure regulator valve is communicated with the import of venturi tube part.

2, electric fuel pump assembly according to claim 1 is characterized in that: also be provided with the fuel level sensor parts on the outer wall of drop tank.

3, electric fuel pump assembly according to claim 1 and 2 is characterized in that: top cover is connected with the drop tank axial elasticity is flexible.

4, electric fuel pump assembly according to claim 1 and 2 is characterized in that: secondary filter places the kidney slot of housing for the semilune cylinder.

5, electric fuel pump assembly according to claim 1 and 2 is characterized in that: be provided with the one-way valve that comprises the valve block of pestering in the bottom of drop tank.

6, electric fuel pump assembly according to claim 3 is characterized in that: be provided with the one-way valve that comprises the valve block of pestering in the bottom of drop tank.