CN205990937U - A kind of engine oil pressure-limiting valve of engine - Google Patents
A kind of engine oil pressure-limiting valve of engine Download PDFInfo
- Publication number
- CN205990937U CN205990937U CN201620974019.0U CN201620974019U CN205990937U CN 205990937 U CN205990937 U CN 205990937U CN 201620974019 U CN201620974019 U CN 201620974019U CN 205990937 U CN205990937 U CN 205990937U
- Authority
- CN
- China
- Prior art keywords
- valve
- engine
- spring
- limiting valve
- guide ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010705 motor oil Substances 0.000 title claims abstract description 9
- 239000003921 oil Substances 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 238000011900 installation process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a kind of engine oil pressure-limiting valve of engine, including valve body, valve element, spring, guide ring, valve seat and circlip, described pressure limiting valve body top has external screw thread, body main oil gallery can be threaded directly into or other treats limiting mechanism of pressure, described pressure limiting valve is assembled according to the order of valve element, spring, guide ring, valve seat in installation process successively, finally fixed by circlip, easy accessibility.The abrasion that the structure of this pressure limiting valve is caused due to camber of spring during can either avoiding valve core movement, is easy to dismount again, decreases maintaining expense.
Description
Technical field
This utility model belongs to engine art, the special pressure limiting valve of especially a kind of engine lubrication system.
Background technology
Within the engine, in order to ensure the normal work of electromotor, need some important friction pairs of electromotor are entered
Row force feed, such as piston, trunnion, connecting rod journal diameter, supercharger etc..Meanwhile, for ensure engine lubrication system safety and can
By property, need the pressure of lubricating system is limited, be now accomplished by using pressure limiting valve.Conventional pressure limiting valve master in diesel engine
Will organic oil pump pressure limiting valve, main oil gallery pressure limiting valve, secondary oil duct pressure limiting valve etc..
The pressure limiting valve that electromotor is commonly used at present is generally the structure that common spring adds guiding valve or ball valve, directly passes through valve body
On screw thread or flange be arranged in body or lubricating oil pump, its concrete structure is as shown in Figure 1.This pressure limiting valve include valve body 1,
Valve element 2, spring 3, valve seat 4, circlip 5, valve seat adopts hexagonal steel, top by screw thread thread directly into body main oil gallery or
Lubricating oil pump oil-out etc. needs to carry out the position of pressure limit.The assemble sequence of this valve is to load valve element, spring, valve seat successively
Valve seat is finally fixed by valve body with circlip (or pin).This pressure limiting valve assembly technology is simple, and can dismantle.
The pressure limiting valve of another kind of structure, as shown in Fig. 2 include flange 1, valve element 2, valve seat 3, spring 4.This valve is by valve
Spring and valve element are first sequentially loaded into valve body by body and valve seat cast solid, finally pass through to weld or other by valve body and flange
Technique is attached.For preventing spring warpage during valve core movement, valve body casts upper coarse and lower fine structure, using valve body to bullet
Spring radial direction carries out spacing.Can not disassemble after the completion of the assembling of this structure pressure limiting valve.
The pressure limiting valve shortcoming of former structure is that pressure limiting valve spring in valve core movement is susceptible to warpage, thus causing
Guiding valve clamping stagnation or the problem of eccentric wear, directly affect performance and the use of electromotor.Although latter configuration avoids this shortcoming,
But this structure requires to improve to technique and tooling device, can not disassemble, need integral replacing when pressure limiting valve goes wrong after assembling, increases
Plus whole machine and maintaining cost.
It is thus desirable to improving to the structure of existing pressure limiting valve.
Content of the invention
The purpose of this utility model is exactly to improve design on the basis of Fig. 1 structure pressure limiting valve, retains former pressure limiting valve excellent
While point, solve the problems, such as spring warpage and the guiding valve clamping stagnation thus causing or eccentric wear during sliding valve movement.
For realizing this technical purpose, this utility model provides following technical scheme：
A kind of engine oil pressure-limiting valve of engine, including valve body, valve element, spring, valve seat, circlip, the top of described valve body
There is external screw thread, thread directly into the position needing to carry out pressure limit by screw top, described valve seat is provided with spring convex
Platform, described valve seat bottom is fixed by circlip it is characterised in that also including guide ring.
Preferably, fit tightly with valve interior wall outside described guide ring.
Preferably, described guide ring, under valve element full-gear, is not come in contact with valve element.
Preferably, described guide ring upper end is abutted with the boss on described valve body, and lower end is abutted with described valve seat.
The utility model has the advantage of：
This structure pressure limiting valve increases a guide ring in valve inner, technique and tooling device is not increased demand, from
And when solving sliding valve movement it is achieved that the control of pressure limiting valve manufacturing cost and use cost while spring warpage issues.
Brief description
By reading the detailed description of hereafter preferred implementation, various other advantages and benefit are common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as to the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical part.In the accompanying drawings：
Accompanying drawing 1 shows a kind of structure of valve of the prior art.
Accompanying drawing 2 shows the structure of another kind valve of the prior art.
Accompanying drawing 3 shows the structure of valve of the present utility model.
Specific embodiment
It is more fully described the illustrative embodiments of the disclosure below with reference to accompanying drawings.Although showing this public affairs in accompanying drawing
The illustrative embodiments opened are it being understood, however, that may be realized in various forms the disclosure and the reality that should not illustrated here
The mode of applying is limited.On the contrary, these embodiments are provided to be able to be best understood from the disclosure, and can be by this public affairs
What the scope opened was complete conveys to those skilled in the art.
Refering to Fig. 3, a kind of engine oil pressure-limiting valve of engine, including valve body 1, valve element 2, spring 3, guide ring 4, valve seat 5, elasticity
Back-up ring 6.Described valve body 1 top can by screw thread thread directly into electromotor owner's oil duct or lubricating oil pump oil-out etc. need into
The position of row pressure limit.The inside of described valve body 1 is provided with spring 3 equipped with valve element 2, the inside of valve element 2, and the lower end of spring 3 is supported
It is connected on valve seat 5, the lower end of valve body 1 is provided with groove, in groove, is connected with circlip 6, valve seat 5 is arranged on circlip 6.
Described valve element 2 withstands valve body 1, and valve element 2 is withstood in the upper end of described spring 3, and valve seat 5 is withstood in lower end, on described valve seat 5
There is coil component spring positioning boss, the lower end of described spring 3 just can be enclosed within coil component spring positioning boss.Spring 3 with
It is additionally provided with guide ring 4 between valve body 1.
In a preferred embodiment, guide ring 4 can be arranged on the bottom of valve body, and abuts with valve seat.
The design of this guide ring 4 can avoid spring 3, in motor process, warpage occurs, thus avoiding the phenomenons such as eccentric wear.
By said structure design, solve the cunning that side valve type pressure limiting valve causes in the course of the work because of spring crook warp
Valve eccentric wear or clamping stagnation.Meanwhile, the assembling of this structure pressure limiting valve does not need special tooling device and technique, does not substantially increase manufacture
Cost.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should described with the protection model of claim
Enclose and be defined.
Claims (4)
1. a kind of engine oil pressure-limiting valve of engine, including valve body, valve element, spring, valve seat, circlip, the top of described valve body has
External screw thread, threads directly into the position needing to carry out pressure limit by screw top, and described valve seat is provided with spring positioning boss,
Described valve seat bottom is fixed by circlip it is characterised in that also including guide ring.
2. as claimed in claim 1 a kind of engine oil pressure-limiting valve of engine it is characterised in that outside described guide ring with valve body in
Wall fits tightly.
3. as claimed in claim 1 a kind of engine oil pressure-limiting valve of engine it is characterised in that described guide ring is in valve element standard-sized sheet shape
Under state, do not come in contact with valve element.
4. as claimed in claim 1 a kind of engine oil pressure-limiting valve of engine it is characterised in that described guide ring upper end and described valve
Boss on body abuts, and lower end is abutted with described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974019.0U CN205990937U (en) | 2016-08-29 | 2016-08-29 | A kind of engine oil pressure-limiting valve of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974019.0U CN205990937U (en) | 2016-08-29 | 2016-08-29 | A kind of engine oil pressure-limiting valve of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205990937U true CN205990937U (en) | 2017-03-01 |
Family
ID=58104647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620974019.0U Expired - Fee Related CN205990937U (en) | 2016-08-29 | 2016-08-29 | A kind of engine oil pressure-limiting valve of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205990937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488608A (en) * | 2018-05-24 | 2018-09-04 | 湖南机油泵股份有限公司 | A kind of pressure limiting valve plunger and improved engine oil pump pressure-limiting valve |
| CN112096941A (en) * | 2020-09-21 | 2020-12-18 | 湖南机油泵股份有限公司 | Oil pump pressure limiting valve capable of improving spring installation precision |
-
2016
- 2016-08-29 CN CN201620974019.0U patent/CN205990937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488608A (en) * | 2018-05-24 | 2018-09-04 | 湖南机油泵股份有限公司 | A kind of pressure limiting valve plunger and improved engine oil pump pressure-limiting valve |
| CN112096941A (en) * | 2020-09-21 | 2020-12-18 | 湖南机油泵股份有限公司 | Oil pump pressure limiting valve capable of improving spring installation precision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 |