CN104791164A - One-way valve assembly for eliminating abnormal sound of automotive electric fuel pump - Google Patents
One-way valve assembly for eliminating abnormal sound of automotive electric fuel pump Download PDFInfo
- Publication number
- CN104791164A CN104791164A CN201510180558.7A CN201510180558A CN104791164A CN 104791164 A CN104791164 A CN 104791164A CN 201510180558 A CN201510180558 A CN 201510180558A CN 104791164 A CN104791164 A CN 104791164A
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- way valve
- post
- abnormal sound
- fuel pump
- valve assembly
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Abstract
The invention discloses a one-way valve assembly for eliminating abnormal sound of an automotive electric fuel pump. The one-way valve assembly comprises a one-way valve, a one-way valve spring seat and a spring. The one-way valve spring seat comprises a fixing ring, a plurality of supporting columns are evenly distributed on one end face of the fixing ring, gaps exist between the supporting columns, a guide column is connected with the fixing ring through the supporting columns, the guide column is located among all the supporting columns, a distance exists between one end of the guide column and the fixing ring, the other end of the guide column extends out of the space defined by the supporting columns, and a square shaft hole is formed in the guide column in the axial direction; the one-way valve comprises a half ball valve, a cylindrical valve core seat and a square connecting shaft, the connecting shaft extends into the shaft hole, and an annular step is arranged on the outer edge of the half ball valve in the circumferential direction and is close to the valve core seat; one end of the spring abuts against the end faces of the supporting columns, and the other end of the spring abuts against the annular step. The one-way valve assembly is simple in structure, the one-way valve body cannot rotate, and the abnormal sound caused by rotation of the one-way valve is avoided.
Description
Technical field
The present invention relates to a kind of check valve assembly eliminating automobile electric fuel pump abnormal sound.
Background technique
Electric fuel punp is for the vitals in the electric control fuel oil jet system in passenger car petrol engine, passenger car oil machine, diesel engine of commercial vehicle etc., the effect of fuel pump is mainly transported to after fuel oil sucking-off from fuel tank, pressurization in fuel supply line, and certain fuel pressure is set up in fuel pressure regulator cooperation.General fuel pump comprises the pump housing and pump head component (check valve assembly), pump head component comprises one-way valve, check valve spring seat and spring, one-way valve comprises spheroidal spool, valve core case and coupling shaft, spring seat is provided with directional post, the coupling shaft of current one-way valve is cylindrical, the axis hole of the directional post of corresponding spring seat is also cylindrical, like this, fluid is when passing through, one-way valve spheroidal Spool rotating, coupling shaft also and then rotates in directional post, cause rotating different sound, riding comfort reduces, simultaneously, due to spin friction, by the appearance of phenomenons such as causing follow-up one-way valve poorly sealed.
Summary of the invention
For existing problem, the check valve assembly of the elimination automobile electric fuel pump abnormal sound the object of the present invention is to provide and a kind ofly eliminate rotation, avoided different sound.
To achieve these goals, technological scheme of the present invention is: a kind of check valve assembly eliminating automobile electric fuel pump abnormal sound, comprise one-way valve, check valve spring seat and spring, it is characterized in that: described check valve spring seat comprises retaining ring, one of them end face of described retaining ring is evenly distributed with multiple supporting post, gap is had between described supporting post, directional post is connected with retaining ring by described supporting post, described directional post is between all supporting posts, and there is distance between one end of described directional post and retaining ring, the other end of described directional post extends to outside the space that supporting post surrounds, described directional post is provided with axis hole vertically, described axis hole is square opening,
Described one-way valve comprises hemisphere spool, valve core case and coupling shaft, described valve core case is cylindrical, the diameter of described valve core case is less than the diameter of hemisphere spool, one end of described valve core case is fixedly connected with hemisphere spool, the other end is fixedly connected with coupling shaft, and described coupling shaft is square shaft, and described coupling shaft stretches in axis hole, described hemisphere spool outer circumference is provided with ring-shaped step, and described ring-shaped step is positioned at the position near valve core case;
Described spring housing is outside directional post and one-way valve, and one end of described spring is against on the end face of supporting post, and the other end is against on ring-shaped step.
Adopt such scheme, at the inwall of pump head component one-way valve valve body corresponding retaining ring, annular groove is set, retaining ring is arranged in this annular groove, inner elements of check valve coupling shaft is also designed to corresponding with the axis hole of directional post square, and hemisphere spool and the mode taking between valve core case and coupling shaft to be fixedly connected with, like this, fluid is when passing through, would not rotate at square spacing lower unidirectional valve circle spherical valve core, abnormal sound can not be produced, simultaneously, the friction that one-way valve spheroidal Spool rotating causes can also be avoided, thus the appearance of the problems such as the poorly sealed reality caused.Directional post is connected with retaining ring by supporting post, and like this when one-way valve opens, fluid passes through from the gap between supporting post, then is gone out in fuel pipe by retaining ring center hole.The other end of directional post reaches outside the space that supporting post surrounds, and spring fitting is convenient, and structure is simple, installs easily.
In such scheme: the center line of described valve core case, hemisphere spool and coupling shaft on the same line.Be convenient to processing and assembling like this.
In such scheme, described coupling shaft, hemisphere spool, valve core case and ring-shaped step are one-body molded.Be convenient to produce.
In such scheme: described supporting post is three.Three supporting posts form a circle, and directional post is arranged on wherein, save material, reasonable in design.
In such scheme: the aperture of the center hole of described retaining ring is greater than the aperture of axis hole.Be conducive to fuel-displaced like this.
In such scheme: described retaining ring, supporting post and directional post are one-body molded.Production and processing is easier.
The invention has the beneficial effects as follows: structure of the present invention is simple, reasonable in design, by columniform axis hole is revised as square opening and prism, coupling shaft is designed to square shaft simultaneously, realize square spacing like this, avoid inner elements of check valve to rotate, thus avoid the different sound that brings because of rotation and friction.Spring seat is reasonable in design, does not need to arrange separately spring step surface, and structure is simple.
Accompanying drawing illustrates:
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of one-way valve.
Fig. 3 is the structural representation of check valve spring seat.
Fig. 4 is the left side view of Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described:
Embodiment 1
As illustrated in fig. 1 and 2: the check valve assembly of elimination automobile electric fuel pump abnormal sound of the present invention, comprises one-way valve, check valve spring seat and spring 9.
One-way valve is made up of parts such as hemisphere spool 1, valve core case 2, coupling shaft 3, ring-shaped steps 4.
Valve core case 2 is cylindrical, and the diameter of valve core case 2 is less than the diameter of hemisphere spool 1, and coupling shaft 3 is square shaft, and its diameter of axle is less than the diameter of valve core case 2.One end of valve core case 2 is fixedly connected with hemisphere spool 1, and the other end is fixedly connected with coupling shaft 3, and the center line of valve core case 2, hemisphere spool 1 and coupling shaft 3 on the same line.Hemisphere spool 1 is outer is circumferentially provided with ring-shaped step 4, and ring-shaped step 4 is positioned at the position near valve core case 2.Coupling shaft 3, hemisphere spool 1, valve core case 2 and ring-shaped step 4 are one-body molded.So convenient processing.
As shown in Figure 3-4, spring seat comprises spring seat body, and spring seat body is made up of parts such as retaining ring 5, supporting post 6, directional post 7 and axis holes 8.
Be provided with at the inwall of one-way valve valve body the annular groove matched with retaining ring 5 near oil outlet, retaining ring 5 is contained in this annular groove.Retaining ring 5 away from the end face of oil outlet being evenly distributed with multiple supporting post 6, be preferably 3 supporting posts 6, reasonable in design like this, cost is low.Have gap between supporting post 6, fuel oil passes through from the gap between supporting post 6, then flows out from the center hole of retaining ring 5.Directional post 7 is connected with retaining ring 5 by supporting post 6, directional post 7 is arranged in the space that all supporting posts 6 surround, and there is distance between one end of directional post 7 and retaining ring 5, time concrete, this end of directional post 7 is positioned at the middle part of supporting post 6, the other end of directional post 7 extends to outside the space that supporting post 6 surrounds, specifically, the end of supporting post 6 is positioned at the middle part of the outer surface of directional post 7, like this, the end face of supporting post 6 just can directly as the attachment face of spring, and that is, spring is directly against on this end face.Directional post 7 is provided with axis hole 8 vertically, and axis hole 8 is square opening.Coupling shaft 3 stretches in this square opening and prism 8, thus realizes square spacing to one-way valve, avoid fuel oil by time one-way valve rotation, avoid consequent abnormal sound.The aperture of the center hole of retaining ring 5 is greater than the aperture of axis hole 8.Facilitate fuel-displaced like this.Retaining ring 5, supporting post 6 and directional post 7 are one-body molded.Such design processing is easier.Spring 9 is enclosed within outside directional post 7 and one-way valve, and one end of spring 9 is against on the end face of supporting post 6, and the other end is against on ring-shaped step 4.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (6)
1. eliminate the check valve assembly of automobile electric fuel pump abnormal sound for one kind, comprise one-way valve, check valve spring seat and spring (9), it is characterized in that: described check valve spring seat comprises retaining ring (5), one of them end face of described retaining ring (5) is evenly distributed with multiple supporting post (6), described supporting post has gap between (6), directional post (7) is connected with retaining ring (5) by described supporting post (6), described directional post (7) is positioned between all supporting posts (2), and there is distance between one end of described directional post (7) and retaining ring (5), the other end of described directional post (7) extends to outside the space that supporting post (6) surrounds, described directional post (7) is provided with vertically axis hole (8), described axis hole (8) is square opening,
Described one-way valve comprises hemisphere spool (1), valve core case (2) and coupling shaft (3), described valve core case (2) is for cylindrical, the diameter of described valve core case (2) is less than the diameter of hemisphere spool (1), one end of described valve core case (2) is fixedly connected with hemisphere spool (1), the other end is fixedly connected with coupling shaft (3), described coupling shaft (3) is square shaft, described coupling shaft (3) stretches in axis hole (8), described hemisphere spool (1) is circumferentially provided with ring-shaped step (4) outward, described ring-shaped step (4) is positioned at the position near valve core case (2),
Described spring (9) is enclosed within outside directional post (7) and one-way valve, and one end of described spring (9) is against on the end face of supporting post (6), and the other end is against on ring-shaped step (4).
2. eliminate the check valve assembly of automobile electric fuel pump abnormal sound according to claim 1, it is characterized in that: the center line of described valve core case (2), hemisphere spool (1) and coupling shaft (3) on the same line.
3. eliminate the check valve assembly of automobile electric fuel pump abnormal sound according to claim 1, it is characterized in that: described coupling shaft (3), hemisphere spool (1), valve core case (2) and ring-shaped step (4) are one-body molded.
4. according to any one of claim 1-3, eliminate the check valve assembly of automobile electric fuel pump abnormal sound, it is characterized in that: described supporting post (6) is three.
5. eliminate the check valve assembly of automobile electric fuel pump abnormal sound according to claim 4, it is characterized in that: the aperture of the center hole of described retaining ring (5) is greater than the aperture of axis hole (8).
6. eliminate the check valve assembly of automobile electric fuel pump abnormal sound according to claim 5, it is characterized in that: described retaining ring (5), supporting post (6) and directional post (7) are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180558.7A CN104791164A (en) | 2015-04-16 | 2015-04-16 | One-way valve assembly for eliminating abnormal sound of automotive electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180558.7A CN104791164A (en) | 2015-04-16 | 2015-04-16 | One-way valve assembly for eliminating abnormal sound of automotive electric fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104791164A true CN104791164A (en) | 2015-07-22 |
Family
ID=53556253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510180558.7A Pending CN104791164A (en) | 2015-04-16 | 2015-04-16 | One-way valve assembly for eliminating abnormal sound of automotive electric fuel pump |
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| Country | Link |
|---|---|
| CN (1) | CN104791164A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640448A (en) * | 2016-08-30 | 2017-05-10 | 重庆万力联兴实业(集团)有限公司 | Parallel type low-slope pressure character pressure adjusting device of fuel pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530065Y (en) * | 2001-12-27 | 2003-01-08 | 万进光 | High-pressure end flow-through electric fuel pump |
| JP2003247470A (en) * | 2002-02-22 | 2003-09-05 | Kyosan Denki Co Ltd | Motor type fuel pump for vehicle |
| JP2007192261A (en) * | 2006-01-17 | 2007-08-02 | Aisan Ind Co Ltd | Check valve |
| US7406954B2 (en) * | 2006-08-10 | 2008-08-05 | Airtex Products | Fuel pump check valve |
| CN203362363U (en) * | 2013-07-26 | 2013-12-25 | 浙江恒兴汽车零部件有限公司 | Anti-rotation check valve electronic injection fuel pump |
| CN204627825U (en) * | 2015-04-16 | 2015-09-09 | 重庆万力联兴实业(集团)有限公司 | Electric fuel punp check valve assembly |
-
2015
- 2015-04-16 CN CN201510180558.7A patent/CN104791164A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530065Y (en) * | 2001-12-27 | 2003-01-08 | 万进光 | High-pressure end flow-through electric fuel pump |
| JP2003247470A (en) * | 2002-02-22 | 2003-09-05 | Kyosan Denki Co Ltd | Motor type fuel pump for vehicle |
| JP2007192261A (en) * | 2006-01-17 | 2007-08-02 | Aisan Ind Co Ltd | Check valve |
| US7406954B2 (en) * | 2006-08-10 | 2008-08-05 | Airtex Products | Fuel pump check valve |
| CN203362363U (en) * | 2013-07-26 | 2013-12-25 | 浙江恒兴汽车零部件有限公司 | Anti-rotation check valve electronic injection fuel pump |
| CN204627825U (en) * | 2015-04-16 | 2015-09-09 | 重庆万力联兴实业(集团)有限公司 | Electric fuel punp check valve assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640448A (en) * | 2016-08-30 | 2017-05-10 | 重庆万力联兴实业(集团)有限公司 | Parallel type low-slope pressure character pressure adjusting device of fuel pump |
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Application publication date: 20150722 |