CN204345225U - A kind of oil filter bypass valve - Google Patents
A kind of oil filter bypass valve Download PDFInfo
- Publication number
- CN204345225U CN204345225U CN201420807535.5U CN201420807535U CN204345225U CN 204345225 U CN204345225 U CN 204345225U CN 201420807535 U CN201420807535 U CN 201420807535U CN 204345225 U CN204345225 U CN 204345225U
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- CN
- China
- Prior art keywords
- oil
- center tube
- valve
- valve seat
- filter core
- 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
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Abstract
The utility model relates to a kind of oil filter bypass valve, comprise center tube, valve seat, normal valve and spring, the outside of center tube is provided with filter core, and center tube is communicated with inside filter core, the lower end of center tube is provided with end cap, be connected to outside this end cap on housing, the upper end of center tube is outlet end, valve seat is located at the outlet end of center tube, and valve seat is provided with the oil outlet be communicated with the outlet end of center tube, valve seat is provided with oil through, and normal valve is located on the downside of valve seat, by spring supporting on the downside of this normal valve, lower spring end is connected on center tube; Under normal circumstances, spring is upspring normal valve, and normal valve is abutted with valve seat, covers oil through, when filter core blocks, engine oil pressure backs down normal valve, makes machine oil enter into oil outlet from oil through.Compared with prior art, bypass valve arrangement of the present utility model is arranged on the clean side outlet of machine oil, when cold start-up or filter core blocking time, clean side and dirty side directly through, avoid polluting filter paper in the filter core of clean side.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of oil filter bypass valve.
Background technique
Generally can bypass valve be set in oil filter, distinguishes at the setting position of bypass valve different.Under normal circumstances, machine oil bypass valve is in closed condition, and all machine oil is by filter paper, and dirty machine oil is effectively filtered, thus lubricating movement part.But when filter core is not changed in time, filter paper is plugged, or when machine oil is in cold start-up (when machine oil is in high viscosity), or during high flow capacity, when filter core resistance increases, bypass valve can be opened, and ensures enough oil lubricating moving elements.
Grant number is that the Chinese patent of CN201425109Y discloses a kind of elastic bypass valve, there is following defect in this bypass valve: 1, sealing gasket coordinates the sealing configuration of spring, because sealing gasket mounting point is not fixed, easily walk when sealing gasket presses down, engine oil flow process easily produces dead band; 2, produce very strong spring force to sealing gasket during spring reset, processing ease makes the contact position of sealing gasket and spring loosen frequently; 3, the end cap of liquid inflow port is when assembling, and needs end cap wall to put in liquid inflow port, and is placed in below sealing gasket.After bypass valve sealing gasket is opened under differential pressure action, machine oil and bypass valve end cap wall have comparatively large contact surface and amass, thus increase the flow resistance of engine oil flow.
Chinese patent CN 203703577U discloses a kind of bypass valve for oil filter, be built in filter core paper, this bypass valve comprises center tube and bypass valve end cap, described center tube input end is by bypass valve end cap and filter core paper compact siro spinning technology, described bypass valve end cap central offers filler opening, valve block is provided with in described center tube, this valve block offers oil outlet, described valve block is provided with the through hole run through for piston, described piston is arranged with spring, and piston head is by the filler opening sealing on bypass valve end cap.This model utility is by improving bypass valve end cover structure, substantially reduce when machine oil flows into filler opening and the area of contact of bypass valve end cap wall, when bypass valve end cap inside and outside differential pressure reaches cracking pressure, piston moves down opens filler opening, machine oil directly enters center tube after filler opening flows into, avoid the flow resistance because bypass valve end cap wall causes, improve the trafficability performance of bypass valve.But said structure is comparatively complicated.
Existing other bypass valve position is everlasting the lower end of product, and when bypass valve is opened, dirty machine oil can enter clean side, pollutes clean side filter paper.
Model utility content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of structure simply, not pollute the oil filter bypass valve of clean side filter paper.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of oil filter bypass valve, this bypass valve comprises center tube, the outside of described center tube is provided with filter core, and center tube is communicated with inside filter core, the lower end of center tube is provided with end cap, be connected to outside this end cap on housing, the upper end of described center tube is outlet end, also comprise valve seat, normal valve and spring, described valve seat is located at the outlet end of center tube, and valve seat is provided with the oil outlet be communicated with the outlet end of center tube, described valve seat is provided with oil through, described normal valve is located on the downside of valve seat, spring supporting is passed through on the downside of this normal valve, described lower spring end is connected on center tube.
Described valve seat is fixed on housing, and the outside of valve seat is provided with the O type circle be connected with housing seal.
Described end cap outside screw is connected on housing, and the middle part of end cap is threaded on thread plug, and described thread plug is fixed on housing, is provided with sealing O type circle between described end cap and housing and thread plug.
Described valve seat buckle is connected to the outlet end of center tube.
With center tube interference fit inside described filter core.
Described oil outlet is arranged on the center of valve seat, and the circumference that described oil through is looped around valve seat is laid.
Under normal circumstances, spring is upspring normal valve, and normal valve is abutted with valve seat, covers oil through, all machine oil enters in center tube by filter core, and dirty machine oil is effectively filtered, thus lubricating movement part.
The situation that filter core can occur to block comprises: filter core replacing in time causes blocked, or when machine oil is in cold start-up, or during high flow capacity, filter core resistance increases, and causes blocking.When filter core blocks, engine oil pressure backs down normal valve, makes machine oil enter into oil outlet from oil through, ensures enough oil lubricating moving elements.
Compared with prior art, bypass valve arrangement of the present utility model is arranged on the clean side outlet of machine oil, works as cold start-up, or filter core blocking time, clean side and dirty side directly through, avoid polluting filter paper in the filter core of clean side.Bypass valve arrangement of the present utility model is arranged simply simultaneously, and be quick on the draw, the trafficability performance of machine oil is good.
Accompanying drawing explanation
Fig. 1 is the structural representation that motor is in oil filter bypass valve when normally working;
Fig. 2 is A place structure for amplifying schematic diagram in Fig. 1;
The structural representation of oil filter bypass valve when Fig. 3 is filter core blocking.
Number in the figure: manage centered by 1,2 is filter core, and 3 is end cap, and 4 is housing, and 5 is valve seat, and 51 is oil outlet, and 52 is oil through, and 6 is normal valve, and 7 is spring, and 8 is thread plug, and 9 is O type circle.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
As shown in FIG. 1 to 3, a kind of oil filter bypass valve, this bypass valve comprises center tube 1, and the outside of center tube 1 is provided with filter core 2, with center tube 1 interference fit inside filter core 2, and center tube 1 is communicated with inside filter core 2, the lower end of center tube 1 is provided with end cap 3, and end cap 3 outside screw is connected on housing 4, and the middle part of end cap 3 is threaded on thread plug 8, thread plug 8 is fixed on housing 4, is provided with sealing O type circle 9 between end cap 3 and housing 4 and thread plug 8.The upper end of center tube 1 is outlet end, and also comprise valve seat 5, normal valve 6 and spring 7, valve seat 5 buckle is connected to the outlet end of center tube 1, and valve seat 5 is fixed on housing 4 simultaneously, and the outside of valve seat 5 is provided with the O type circle 9 be tightly connected with housing 4.And valve seat 5 is provided with the oil outlet 51 be communicated with the outlet end of center tube 1, valve seat 5 is provided with oil through 52, and normal valve 6 is located on the downside of valve seat 5, is supported on the downside of this normal valve 6 by spring 7, and spring 7 lower end is connected on center tube 1.
With reference to figure 2, oil outlet 51 is arranged on the center of valve seat 5, and the circumference that oil through 52 is looped around valve seat 5 is laid.
With reference to figure 1, under normal circumstances, spring 7 is upspring normal valve 6, and normal valve 6 is abutted with valve seat 5, covers oil through 52, all machine oil enters in center tube 1 by filter core 2, and dirty machine oil is effectively filtered, thus lubricating movement part.In Fig. 1, the direction of arrow represents the flow direction of machine oil.
The situation that filter core 2 can occur to block comprises: filter core 2 replacing in time causes blocked, or when when machine oil is in cold start-up, machine oil is in high viscosity, or during high flow capacity, filter core 2 resistance increases, and causes blocking.With reference to figure 3, when filter core 2 blocks, engine oil pressure backs down normal valve 6, makes machine oil enter into oil outlet 51 from oil through 52, ensures enough oil lubricating moving elements.In Fig. 3, the direction of arrow represents the flow direction of machine oil.
Above-mentioned is can understand for ease of those skilled in the art and use model utility to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art, according to announcement of the present utility model, do not depart from improvement that the utility model category makes and amendment all should within protection domain of the present utility model.
Claims (6)
1. an oil filter bypass valve, this bypass valve comprises center tube (1), the outside of described center tube (1) is provided with filter core (2), and center tube (1) is communicated with filter core (2) inner side, the lower end of center tube (1) is provided with end cap (3), this end cap (3) outside is connected on housing (4), the upper end of described center tube (1) is outlet end, it is characterized in that, also comprise valve seat (5), normal valve (6) and spring (7), described valve seat (5) is located at the outlet end of center tube (1), and valve seat (5) is provided with the oil outlet (51) be communicated with the outlet end of center tube (1), described valve seat (5) is provided with oil through (52), described normal valve (6) is located at valve seat (5) downside, this normal valve (6) downside is supported by spring (7), described spring (7) lower end is connected on center tube (1),
Under normal circumstances, spring (7) is upspring normal valve (6), normal valve (6) is abutted with valve seat (5), cover oil through (52), when filter core (2) blocks, engine oil pressure backs down normal valve (6), makes machine oil enter into oil outlet (51) from oil through (52).
2. a kind of oil filter bypass valve according to claim 1, it is characterized in that, described valve seat (5) is fixed on housing (4), and the outside of valve seat (5) is provided with the O type circle (9) be tightly connected with housing (4).
3. a kind of oil filter bypass valve according to claim 1, it is characterized in that, described end cap (3) outside screw is connected on housing (4), the middle part of end cap (3) is threaded on thread plug (8), described thread plug (8) is fixed on housing (4), is provided with sealing O type circle (9) between described end cap (3) and housing (4) and thread plug (8).
4. a kind of oil filter bypass valve according to claim 1, is characterized in that, described valve seat (5) buckle is connected to the outlet end of center tube (1).
5. a kind of oil filter bypass valve according to claim 1, is characterized in that, described filter core (2) inner side and center tube (1) interference fit.
6. a kind of oil filter bypass valve according to claim 1, it is characterized in that, described oil outlet (51) is arranged on the center of valve seat (5), and the circumference that described oil through (52) is looped around valve seat (5) is laid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807535.5U CN204345225U (en) | 2014-12-17 | 2014-12-17 | A kind of oil filter bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807535.5U CN204345225U (en) | 2014-12-17 | 2014-12-17 | A kind of oil filter bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345225U true CN204345225U (en) | 2015-05-20 |
Family
ID=53228493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420807535.5U Expired - Fee Related CN204345225U (en) | 2014-12-17 | 2014-12-17 | A kind of oil filter bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204345225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912623A (en) * | 2015-06-25 | 2015-09-16 | 广西华原过滤系统股份有限公司 | Full-flow type machine oil filter cleaning device |
| CN107560679A (en) * | 2017-08-29 | 2018-01-09 | 中国北方车辆研究所 | Gear flow meter with safe by-pass collar |
-
2014
- 2014-12-17 CN CN201420807535.5U patent/CN204345225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912623A (en) * | 2015-06-25 | 2015-09-16 | 广西华原过滤系统股份有限公司 | Full-flow type machine oil filter cleaning device |
| CN107560679A (en) * | 2017-08-29 | 2018-01-09 | 中国北方车辆研究所 | Gear flow meter with safe by-pass collar |
| CN107560679B (en) * | 2017-08-29 | 2019-06-18 | 中国北方车辆研究所 | Gear flow meter with safe by-pass collar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20171217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |