CN213478547U

CN213478547U - Diesel oil fuel pump assembly with low oil return pressure and cold start structure

Info

Publication number: CN213478547U
Application number: CN202021964787.0U
Authority: CN
Inventors: 邹凤翔; 刘栋; 万进光
Original assignee: Wenzhou Jinjia Auto Parts Co ltd
Current assignee: Wenzhou Jinjia Auto Parts Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-18
Anticipated expiration: 2030-09-10

Abstract

The utility model relates to a cold start structure diesel oil fuel pump assembly in low oil return pressure area, including oil storage bucket, top cap and fuel pump, the fuel pump sets up inside the oil storage bucket, the top cap sets up in oil storage bucket top, set up the bracing piece between top cap and the oil storage bucket, set up out oil pipe and return oil pipe on the top cap, it all stretches into in the oil storage bucket to go out oil pipe and return oil pipe's bottom, still set up cold start oil pipe on the top cap, cold start oil pipe bottom stretches into oil storage barrel head portion, cold start oil pipe top is passed the top cap and is connected fixedly with external machine, still set up the governing valve in the oil storage bucket, governing valve and oil storage bucket wall connection, it is connected with the governing valve to return oil pipe, increases cold start oil pipe on the top cap, cold start oil pipe and fuel pump combined action under low temperature environment, guarantee that the vehicle.

Description

Diesel oil fuel pump assembly with low oil return pressure and cold start structure

Technical Field

The utility model relates to a field fuel pump assembly especially indicates a low return pressure area cold start structure diesel oil fuel pump assembly.

Background

The pressure of the oil outlet end and the pressure of the oil return end of the conventional fuel pump assembly are the same, so that the requirement of an engine cannot be met. The diesel vehicle has the situation of difficult starting in a low-temperature environment, the conventional diesel vehicle needs to be ignited for many times, and even the situation that a driver heats an oil tank by naked fire occurs, which causes great trouble to the driver.

Disclosure of Invention

In view of this, the utility model provides a two fuel tank secondary pumps order about the main pump and draw and penetrate diesel oil fuel pump assembly.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a low oil return pressure area cold start structure diesel oil fuel pump assembly, includes oil storage bucket, top cap and fuel pump, the fuel pump sets up inside the oil storage bucket, the top cap sets up in oil storage bucket top, set up the bracing piece between top cap and the oil storage bucket, set up out oil pipe and time oil pipe on the top cap, it all stretches into in the oil storage bucket to go out oil pipe and time oil pipe's bottom, still set up cold start oil pipe on the top cap, cold start oil pipe bottom stretches into oil storage barrel head portion, cold start oil pipe top is passed the top cap and is connected fixedly with external machine, still set up the governing valve in the oil storage bucket, governing valve and oil storage bucket inner wall connection, it is connected with the governing valve to return oil pipe.

Preferably, an installation groove is formed in the oil storage barrel, the adjusting valve is arranged in the installation groove, and a sealing ring is arranged at the joint of the adjusting valve and the installation groove.

Preferably, the inside annular that sets up of oil storage bucket, the sealing washer sets up inside the annular, sealing washer one side and governing valve butt, the sealing washer opposite side and annular inner wall butt.

Preferably, the placing openings are formed in two sides of the mounting groove, the protruding ends are formed in two sides of the regulating valve, the protruding ends extend into the placing openings, and the regulating valve is connected and fixed with the mounting groove through the protruding ends and the placing openings.

Preferably, the governing valve sets up the pressure release mouth, the opening of pressure release mouth sets up towards the bottom of oil storage bucket, governing valve one side sets up the fuel pump, the fuel pump bottom sets up the filter screen.

The beneficial effects of the utility model reside in that: the fuel is output through the high-pressure diesel oil fuel pump, and the chassis system increases the oil pressure, and when the fuel backward flow to the fuel tank, the relief valve of oil return pipeline will too high pressure reduce, guarantees the normal work of system, and when the vehicle was in low temperature environment, the cold start oil pipe work of being connected with outside motor, when low temperature environment starts the difficulty, starts outside motor, and outside motor inhales the oil in the fuel tank towards the engine, reaches the effect of starting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is the internal structure diagram of the oil storage barrel of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings.

The utility model provides a following technical scheme:

as shown in the accompanying drawings 1-3, the utility model discloses a cold start structure diesel oil fuel pump 11 assembly in low return pressure area, including oil storage bucket 13, top cap 12 and fuel pump 11, fuel pump 11 sets up inside oil storage bucket 13, top cap 12 sets up in oil storage bucket 13 top, set up the bracing piece between top cap 12 and the oil storage bucket 13, set up out oil pipe 3 and return oil pipe 2 on top cap 12, go out oil pipe 3 and return oil pipe 2's bottom and all stretch into in oil storage bucket 13, still set up cold start oil pipe 1 on top cap 12, cold start oil pipe 1 bottom stretches into oil storage bucket 13 bottom, it is fixed with external motor connection that top cap 12 is passed on cold start oil pipe 1 top, still set up governing valve 9 in the oil storage bucket 13, governing

valve

9 and 13 interior wall connection of oil storage bucket, it is connected with governing valve 9 to return oil pipe 2.

Increase cold start oil pipe 1 on the top cap, cold start oil pipe 1 stretches into oil storage bucket 13 bottom, and cold start oil pipe 1 connects the outer motor of oil tank (not shown), and when low temperature environment starts the difficulty, starter motor, motor are inhaled towards the engine with the oil in the oil tank, reach the effect of starting, and cold start oil pipe 1 and fuel pump combined action under low temperature environment guarantee that the vehicle starts successfully.

Specifically, set up mounting groove 10 in the oil storage bucket 13, governing valve 9 sets up in mounting groove 10, governing valve 9 sets up sealing washer 8 with the mounting groove 10 junction, makes the possibility that reduces the leakage between governing valve 9 and the oil storage bucket 13 through setting up of sealing washer 8 and annular 7, has increased holistic sealing performance.

Specifically, governing valve 9 sets up oil inlet 14 and oil-out 15, and oil inlet 14 is connected back oil pipe 2, and oil-out 15 is connected out oil pipe 3, and the fuel is sent to the fuel pump through oil-out 15 that returns oil pipe 2 entering oil storage bucket 13 through governing valve 9, specifically, oil storage bucket 13 is inside to set up annular 7, sealing washer 8 sets up inside annular 7, 8 one side of sealing washer and 9 butts of governing valve, 8 opposite sides of sealing washer and 7 inner walls butts of annular. The sealing performance between the regulating valve 9 and the inner wall of the ring groove 7 is improved by arranging the sealing ring 8, and the possibility of leakage between the regulating valve and the ring groove is prevented.

Specifically, the two sides of the mounting groove 10 are provided with the placing openings 6, the two sides of the regulating valve 9 form the protruding ends 5, the protruding ends 5 extend into the placing openings 6, and the regulating valve 9 is connected with the placing openings 6 through the protruding ends 5 to be fixedly connected with the mounting groove 10.

Specifically, governing valve 9 sets up pressure release mouth 4, the opening of pressure release mouth 4 sets up towards the bottom of oil storage bucket 13, governing valve 9 one side sets up fuel pump 11, fuel pump 11 bottom sets up the filter screen, and the setting of pressure release mouth 4 can be better adjust the pressure of governing valve 9 inside, thereby prevent that 9 internal pressure of governing valve 9 high emergence from damaging the governing valve 9 that leads to whole fuel pump assembly to break down.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a low oil return pressure area cold start structure diesel oil fuel pump assembly, includes oil storage bucket, top cap and fuel pump, the fuel pump sets up inside the oil storage bucket, the top cap sets up in oil storage bucket top, set up the bracing piece between top cap and the oil storage bucket, set up out oil pipe and time oil pipe on the top cap, go out in oil pipe and time oil pipe's bottom all stretches into the oil storage bucket, its characterized in that: still set up cold start oil pipe on the top cap, cold start oil pipe one end stretches into oil storage barrel head portion, the cold start oil pipe other end passes the top cap and is connected with external motor, still set up the governing valve in the oil storage barrel, governing valve and oil storage barrel inner wall connection, it all is connected with the governing valve with play oil pipe to return oil pipe.

2. The low return pressure cold start configuration diesel fuel pump assembly of claim 1, wherein: set up the mounting groove in the oil storage bucket, the governing valve sets up in the mounting groove, governing valve and mounting groove junction set up the sealing washer.

3. The low return pressure cold start configuration diesel fuel pump assembly of claim 2, wherein: the oil storage barrel is internally provided with an annular groove, the sealing ring is arranged inside the annular groove, one side of the sealing ring is abutted to the regulating valve, and the other side of the sealing ring is abutted to the inner wall of the annular groove.

4. The low return pressure cold start configuration diesel fuel pump assembly of claim 2, wherein: the mounting groove both sides are seted up and are placed the mouth, the governing valve both sides form the protrusion end, the protrusion end stretches into and places the mouth, the governing valve is connected fixedly with the mounting groove through protrusion end and placing the mouth.

5. The low return pressure cold start configuration diesel fuel pump assembly of claim 1, wherein: the governing valve sets up the pressure release mouth, the opening of pressure release mouth sets up towards the bottom of oil storage bucket, governing valve one side sets up the fuel pump, the fuel pump bottom sets up the filter screen.