CN212671972U

CN212671972U - Fuel supply system with vibration damper

Info

Publication number: CN212671972U
Application number: CN202020771293.4U
Authority: CN
Inventors: 徐小平; 叶秀峰; 钱光明
Original assignee: Huayi Electromechanical Co ltd
Current assignee: Huayi Electromechanical Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-03-09
Anticipated expiration: 2030-05-12

Abstract

The fuel supply system with the vibration damper comprises a body and a floater arranged on the body, wherein the floater is connected with the body through a floater pin, an installation arm used for installing the floater pin is arranged on the body, the vibration damper is used for reducing an included angle between the floater and the bottom plane of the body, and the vibration damper is arranged on the floater pin and is abutted to the bottom of the floater. The utility model can reduce the vibration amplitude of the floater up and down during the operation of the engine, and has the effect of vibration reduction of the floater; meanwhile, the drooping angle of the floater is reduced due to small vibration amplitude of the floater, so that the oil leakage risk of an oil inlet system of the fuel supply system is reduced.

Description

Fuel supply system with vibration damper

Technical Field

The utility model relates to a fuel feed system, especially a fuel feed system with vibration damper.

Background

Referring to fig. 1, fig. 1 is a schematic diagram of a prior art fuel supply system. In the fuel system of the prior art, the float 20 is connected to the body 10 by the float pin 30, and the float 20 naturally droops by a certain angle a (see fig. 1) with respect to the bottom plane of the body 10 under the action of gravity. The float 20 is always in an up-and-down vibrating state during engine operation. When the drooping angle a of the float 20 is too large due to vibration, the floating force of the float 20 is easily hindered to some extent, thereby causing oil leakage of the oil intake system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the above-mentioned problem of prior art, provide a fuel feed system with vibration damper.

In order to achieve the above object, the utility model provides a fuel feed system with vibration damper, include the body and install float on the body, the float pass through the float round pin with this body coupling, be provided with on the body and be used for the installation arm of float round pin, wherein, fuel feed system is still including being used for reducing the float with the vibration damper of contained angle between the basal plane of body, vibration damper install on the float round pin, and with the bottom butt of float.

The fuel supply system with the vibration damper is characterized in that the vibration damper is a damping torsion spring.

The fuel supply system with the vibration damper comprises a torsion spring main body, an extension arm and a connecting arm, wherein the extension arm and the connecting arm are respectively connected with the torsion spring main body, the torsion spring main body is installed on the float pin, the extension arm extends and supports on the bottom plane of the float along the bottom plane direction of the float, and the connecting arm extends and supports on the installation arm along the installation arm direction.

The fuel supply system with the vibration damper is characterized in that the torsion spring main body comprises two symmetrically arranged annular rings, the inner diameter of each annular ring is matched with the outer diameter of the float pin, and the annular rings are sleeved on the float pin.

In the fuel supply system with the vibration damper, the connecting arm includes an extending section and a leaning section, the extending section is two symmetrical metal wires, one end of each metal wire is connected with one of the annular rings, and the other end of each metal wire is connected with two ends of the leaning section.

The fuel supply system with a vibration damping device, wherein the extension arm comprises two symmetrical extension wires, and one end of each extension wire is connected with one of the annular rings.

In the above fuel supply system having a vibration damping device, the other end of the extension wire includes a bent portion.

In the fuel supply system with the vibration damping device, the bent portion is a bent wire having an included angle greater than or equal to 90 degrees with the extension wire.

In the above fuel supply system with a vibration damping device, the bent portion is a metal ring connected to the other end of the extension wire.

In the fuel supply system with the damping device, the torsion spring main body, the extension arm and the connecting arm are an integral structural member.

The utility model has the beneficial effects that:

the utility model can reduce the vibration amplitude of the floater up and down during the operation of the engine, and has the effect of vibration reduction of the floater; meanwhile, the droop angle B of the floater is reduced due to small vibration amplitude of the floater, so that the oil leakage risk of an oil inlet system of the fuel supply system is reduced.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

FIG. 1 is a schematic diagram of a prior art fuel delivery system;

fig. 2 is a schematic structural diagram of a fuel supply system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a vibration damping device according to an embodiment of the present invention.

Wherein the reference numerals

Prior Art

10 main body

20 float

30 float pin

The utility model discloses

1 main body

11 mounting arm

2 float

3 float pin

4 damping device

41 torsion spring body

42 extension arm

43 connecting arm

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

referring to fig. 2, fig. 2 is a schematic structural diagram of a fuel supply system according to an embodiment of the present invention. The utility model discloses a fuel feed system with vibration damper 4, include body 1 and install float 2 on the body 1, float 2 pass through float round pin 3 with body 1 is connected, be provided with on the body 1 and be used for the installation arm 11 of float round pin 3, fuel feed system is still including being used for reducing float 2 with contained angle B's vibration damper 4 between the basal plane of body 1, vibration damper 4 installs on the float round pin 3, and with float 2's bottom butt.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a damping device 4 according to an embodiment of the present invention. The utility model discloses a damping torsion spring is preferred to damping device 4. Wherein, the shock attenuation torsional spring includes torsional spring main part 41, extension arm 42 and linking arm 43 respectively with torsional spring main part 41 connects, torsional spring main part 41, extension arm 42 and linking arm 43 are preferably integrative structure, torsional spring main part 41 is installed on the float round pin 3, extension arm 42 is followed the bottom plane direction of float 2 extends and supports and lean on the bottom plane of float 2, linking arm 43 is followed installation arm 11 direction extends and supports and lean on installation arm 11. The torsion spring main body 41 comprises two annular rings which are symmetrically arranged, the inner diameter of each annular ring is matched with the outer diameter of the float pin 3, and the annular rings are sleeved on the float pin 3. The connecting arm 43 comprises an extending section and a leaning section, the extending section is two sections of metal wires which are symmetrically arranged, one end of each metal wire is connected with one annular ring, and the other end of each metal wire is connected with two ends of the leaning section. The extension arm 42 includes two symmetrical extension wires, and one end of each extension wire is connected to one of the annular rings. The other end of the extension wire comprises a bending part. The bending part can be a bent metal wire with an included angle of more than or equal to 90 degrees with the extension metal wire. Alternatively, the bent portion may be a metal ring connected to the other end of the extension wire.

The utility model discloses a shock attenuation torsional spring can direct mount on float round pin 3, and extension arm 42 on the shock attenuation torsional spring can hold float 2's below, makes float 2's flagging angle B be less than among the prior art float 2 nature flagging angle A all the time. When the engine runs, the floater 2 is subjected to the acting force of the damping torsion spring, so that the amplitude of the up-and-down vibration of the floater 2 is reduced, and the effect of damping the vibration of the floater 2 is achieved. Meanwhile, the vibration amplitude of the floater 2 is reduced, so that the droop angle B is reduced, and the oil leakage risk of an oil inlet system of the fuel supply system is reduced.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. The utility model provides a fuel feed system with vibration damper, includes the body and installs float on the body, the float pass through the float round pin with this body coupling, be provided with on the body and be used for the installation arm of float round pin, its characterized in that, fuel feed system still including be used for reducing the float with the vibration damper of contained angle between the bottom plane of body, vibration damper install on the float round pin, and with the bottom butt of float.

2. The fuel supply system having a vibration damping device according to claim 1, wherein the vibration damping device is a damping torsion spring.

3. The fuel supply system with vibration damping device according to claim 2, wherein said damping torsion spring includes a torsion spring main body, an extension arm and a link arm, said extension arm and link arm being respectively connected to said torsion spring main body, said torsion spring main body being mounted on said float pin, said extension arm extending in a direction of a bottom plane of said float and abutting on said bottom plane of said float, said link arm extending in a direction of said mounting arm and abutting on said mounting arm.

4. A fuel supply system having a vibration damping device according to claim 3, wherein said torsion spring main body comprises two symmetrically arranged annular rings, an inner diameter of said annular rings being adapted to an outer diameter of said float pin, said annular rings being fitted over said float pin.

5. A fuel supply system having a vibration damping device according to claim 4, wherein said connecting arm includes an extension section and an abutting section, said extension section is two symmetrically disposed wires, one end of each of said wires is connected to one of said annular rings, and the other end of each of said wires is connected to both ends of said abutting section.

6. A fuel supply system having a vibration damping device according to claim 4 or 5, wherein said extension arm comprises two segments of extension wire which are symmetrical, and one end of each of said extension wires is connected to one of said annular rings.

7. The fuel supply system having a vibration damping device according to claim 6, wherein the other end of said extension wire includes a bent portion.

8. The fuel supply system having a vibration damping device according to claim 7, wherein said bent portion is a bent wire having an angle greater than or equal to 90 degrees with respect to said extended wire.

9. The fuel supply system with a vibration damping device according to claim 7, wherein said bent portion is a metal ring connected to the other end of said extension wire.

10. A fuel supply system having vibration damping means according to claim 3, 4 or 5, wherein the torsion spring body, the extension arm and the connecting arm are an integral structural member.