CN207349770U - A kind of lubricating oil pump combination valve - Google Patents
A kind of lubricating oil pump combination valve Download PDFInfo
- Publication number
- CN207349770U CN207349770U CN201721151353.7U CN201721151353U CN207349770U CN 207349770 U CN207349770 U CN 207349770U CN 201721151353 U CN201721151353 U CN 201721151353U CN 207349770 U CN207349770 U CN 207349770U
- Authority
- CN
- China
- Prior art keywords
- oil
- safe
- valve
- valve chamber
- lubricating oil
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Safety Valves (AREA)
Abstract
It the utility model is related to machine oil pump technical field, specially a kind of lubricating oil pump combination valve, including valve body, the hollow formation valve chamber of valve body, the valve body is equipped with oil inlet and drain pan, the oil inlet is connected with the pump discharge of lubricating oil pump, the drain pan is connected with the oil sump of engine or the external world, it is equipped with pilot plunger in the valve chamber successively from left to right, safe spool and spring, the pilot plunger front portion is additionally provided with the feedback oil pocket of connection engine main oil gallery, the pilot plunger afterbody is equipped with drain path, the drain path connection oil inlet and pilot plunger its right end face, the oil liquid pressure in oil inlet is set to can be done directly on safe spool.
Description
Technical field
Machine oil pump technical field is the utility model is related to, is specially a kind of lubricating oil pump combination valve.
Background technology
Oil supply mechanism of the lubricating oil pump as engine, plays most crucial effect, in reality for the reliability service of engine
In the application of border, the running power moment of engine occurs to change, thus the traffic demand of lubricating oil is occurred to become with regard to the moment
Change, the prior art generally can all add flow control valve to adjust the fuel supply flow rate of lubricating oil on the lubricating oil pump pump housing, but moisten
Lubricating oil because of engine movements component wear can be mingled with some abrasive particles using after a period of time in itself, while when lubricating oil is with using
Between increase its viscosity can also be continuously increased, in this case, lubricating oil pump be operationally likely occurred feedback oil circuit it is dirty stifled or
Person's moving component clamping stagnation and the problem of cause oil extraction oil pocket hypertonia in oil pump, therefore, the pump housing of the prior art in lubricating oil pump
On a safety valve can be also set, it is ensured that lubricating oil pump will not be damaged because oil pressure is excessive in itself under foregoing extreme situation.
Utility model content
The mesh of the utility model is to provide a kind of lubricating oil pump group for having safety valve and oil pressure feedback regulation valve action concurrently
Valve is closed, which has the advantages of simple in structure, compact, reliability is high.
To realize this purpose, the utility model adopts the following technical solution：A kind of lubricating oil pump combination valve, including valve
Body, the hollow formation valve chamber of valve body, the valve body are equipped with oil inlet and drain pan, and the oil inlet and lubricating oil pump pump out
Mouth connection, the drain pan are connected with the oil sump of engine or the external world, are equipped with adjustable column in the valve chamber successively from left to right
Plug, safe spool and spring, the pilot plunger front portion are additionally provided with the feedback oil pocket of connection engine main oil gallery, the adjustable column
Plug afterbody is equipped with drain path, the drain path connection oil inlet and pilot plunger its right end face, makes the fluid in oil inlet
Pressure can be done directly on safe spool；
When it is described feedback oil pocket inner fluid hypertonia when, the pilot plunger feedback oil pocket inner fluid promotion under to
Move right, the oil inlet is connected with drain pan, so that the fluid of pump discharge is released to oil sump or the external world；
When the feedback oil pocket inner fluid pressure is normal and pump discharge pressure is excessive, the safe spool is in pump discharge oil
Individually move right under the action of hydraulic coupling, the oil inlet is connected through drain path with drain pan, so that the oil of pump discharge
Liquid is released to oil sump or the external world.
Preferably, it is annular recess in the middle part of the pilot plunger, the oil inlet is communicated with the annular recess of plunger,
The pilot plunger afterbody is equipped with the safe valve chamber for accommodating safe spool, the drain path connection annular recess and safety valve
Chamber, the side wall of the safe valve chamber are equipped with some oil leak holes communicated with drain pan.
Preferably, the safe spool is spherical the anterior arc being equipped with the cooperation of safe spool face of the safe valve chamber
Shape sealing surface, the safe spool be able to can move back and forth under the action of pressure oil in safety valve intracavitary, so as to control described let out
The break-make of oily passage and drain pan.
Preferably, the safe spool is cylinder, and the safe valve chamber is also cylindrical cavity, and the safe spool exists
It is able to can be moved back and forth in safety valve intracavitary under the action of pressure oil, so as to control the break-make of the drain path and drain pan.
Further, the plunger spring both ends are equipped with pad.
Preferably, the angle position in the annular recess uses circular arc chamfering.
The beneficial effects of the utility model are：Combination valve provided by the utility model is compact-sized, ingenious in design,
Have the effect of oil pump capacity regulating valve and safety valve concurrently, a spring shared arranged on the pilot plunger of valve body and safe spool,
But the effect of adjusting flow and oil pressure of releasing can be implemented separately according to feedback oil pocket or pump discharge oil pressure, greatly drop
The complexity of low lubricating oil pump pump body structure design.
Brief description of the drawings
Fig. 1 is the top view of the utility model embodiment.
Fig. 2 is the combination valve sectional view for having in the utility model embodiment the safe spool of cylinder.
Fig. 3 is to include a kind of combination valve sectional view of safe valve chamber in the utility model embodiment.
Fig. 4 is the combination valve sectional view that another safe valve chamber is included in the utility model embodiment.
Fig. 5 is the left view of the utility model embodiment.
Fig. 6 is the schematic diagram for the pilot plunger that the utility model includes inclined oil hole of air.
In figure：
1- valve body 2- oil inlet 3- drain pans
The safe spool 6- springs of 4- pilot plungers 5-
7- feeds back the safe valve chambers of oil pocket 8- drain paths 9-
10- oil leak holes.
Embodiment
In the description of the utility model, it is to be understood that the orientation of the instruction such as term " interior ", " outer " or position are closed
It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as the limitation to the utility model.
In addition, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanically connecting or being electrically connected
Connect or the connection inside two elements, can be directly connected, can also be indirectly connected by intermediary, for
For those of ordinary skill in the art, the concrete meaning of the term can be understood as the case may be.
For the ease of the understanding of those skilled in the art, the utility model is made with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.
Before specific structure description and explanation is carried out, it is necessary to do brief description to the invention thinking of invention：Hair
A person of good sense is when designing the engine oil pump of a specific model, due to the needs of enging cabin space layout, the peace of the lubricating oil pump
Full valve and flow control valve can only be in a very long and narrow spaces, as well known to a person skilled in the art oil pump capacity tune
Section is primarily to solve the problems, such as that oil pressure is excessive in engine main oil gallery（On the one hand hypertonia in engine main oil gallery needs
More engine powers are consumed to circulate, some sealing positions is on the other hand also be easy to cause and is sent out beyond pressure allowable value
Raw leakage）, thus flow control valve uses the feedback oil pressure of main oil gallery, safety valve is then to solve pumping out for lubricating oil pump
The problem of hypertonia of mouth, also the pressure of pump discharge is in general higher than the allowable pressure of main oil gallery, therefore in practice
The Opening pressure of safety valve and flow control valve is also different, this just considerably increases the difficulty of combination valve design.In addition, just
Referred to Ru foregoing, due to the combination valve can the space occupied be an elongated shape, should realize the function, again of two valve independence
Needing to take into account requirement of two valves for releasing and adjusting flow, this devises a combination valve with just courageously breaking through to inventor,
The combination valve shares a valve body, and plunger uses the design of combined plunger, and plunger spring has then used same spring, significantly
The occupancy for reducing volume.
As shown in Figs. 1-5, a kind of lubricating oil pump combination valve, including valve body 1, the hollow formation valve chamber of valve body 1, the valve body
1 is equipped with oil inlet 2 and drain pan 3, and the oil inlet 2 is connected with the pump discharge of lubricating oil pump, the drain pan 3 and engine
Oil sump or the external world connect, and pilot plunger 4, safe spool 5 and spring 6, the tune are equipped with successively from left to right in the valve chamber
4 front portion of segmented column plug is additionally provided with the feedback oil pocket 7 of connection engine main oil gallery, and 4 afterbody of pilot plunger is equipped with drain path 8,
The drain path 8 connects 4 its right end face of oil inlet 2 and pilot plunger, can be done directly on the oil liquid pressure in oil inlet 2
On safe spool 5；
When the feedback 7 inner fluid hypertonia of oil pocket, promotion of the pilot plunger 4 in feedback 7 inner fluid of oil pocket
Under move right, the oil inlet 2 is connected with drain pan 3, so that the fluid of pump discharge is released to oil sump or the external world；
When 7 inner fluid pressure of the feedback oil pocket is normal and pump discharge pressure is excessive, the safe spool 5 is in pump discharge
Individually move right under the action of oil liquid pressure, the oil inlet 2 is connected through drain path 8 with drain pan 3, so that pump discharge
Fluid released to oil sump or the external world.
As in Figure 2-4, the pilot plunger of combinations thereof valve and safe spool can have various shapes, its designing points exists
In the safe sealing surface corresponding with necessarily be formed between valve body or pilot plunger of spool 5, the sealing surface is ensured in normal condition
Lower drain path is directly truncated with oil leak hole.
Preferably, the middle part of the pilot plunger 4 is annular recess, the annular recess phase of the oil inlet 2 and plunger
Logical, 4 afterbody of pilot plunger is equipped with the safe valve chamber 9 for accommodating safe spool 5, and the drain path 8 connects annular recess
With safe valve chamber 9, the side wall of the safe valve chamber 9 is equipped with some oil leak holes 10 communicated with drain pan 3.
Certainly, middle part can not also be set in the middle part of pilot plunger has a structure of annular recess, such as can be with
The inclined oil hole of air shown in Fig. 6 is opened up in pilot plunger 4, after pilot plunger 4 is pushed to specific location by feedback oil pocket inner fluid,
The oil inlet is turned on oil leak hole by inclined oil hole of air, so as to fulfill the effect released.
Preferably, the safe spool is spherical the anterior arc being equipped with the cooperation of safe spool face of the safe valve chamber
Shape sealing surface, the safe spool be able to can move back and forth under the action of pressure oil in safety valve intracavitary, so as to control described let out
The break-make of oily passage and drain pan.
Preferably, the safe spool is cylinder, and the safe valve chamber is also cylindrical cavity, and the safe spool exists
It is able to can be moved back and forth in safety valve intracavitary under the action of pressure oil, so as to control the break-make of the drain path and drain pan.
Further, 4 both ends of plunger spring are equipped with pad.Pad is set to keep away at the both ends of plunger spring 4
Exempt from due to the problem of pilot plunger frequent movement causes the contact surface abrasion of plunger spring 4 and valve body, practical experience shows, this connects
Contacting surface abrasion be easy to cause spring breakage, thus can avoid directly wearing valve body to a certain extent using pad, reduces the later stage
The cost of maintenance.
Preferably, the angle position of the annular recess of the pilot plunger 3 is arc transition.
As shown in Figure 2, Figure 3 and Figure 4, when pilot plunger 3 is in frequent movement under the action of main oil gallery feedback oil pressure, release
Lubricating oil in oil pocket also can frequently shake in oil pocket 6 of releasing, and CFD analog results show that the concussion can cause pump discharge
Oil pressure is unstable, and by the annular recess of pilot plunger 3 be changed to arc transition then can reply reduce its pressure oscillation.
Above-described embodiment is the preferable implementation of the utility model, and in addition, the utility model can be with other sides
Formula is realized, any on the premise of the technical program design is not departed from obviously to replace in the protection model of the utility model
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the utility model relative to the prior art improvement it
Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
A little other elements, those of ordinary skill in the art should be aware that these elements omitted also may make up the interior of the utility model
Hold.
Claims (6)
1. a kind of lubricating oil pump combination valve, including valve body（1）, the valve body（1）Hollow formation valve chamber, it is characterised in that：It is described
Valve body（1）It is equipped with oil inlet（2）And drain pan（3）, the oil inlet（2）Connected with the pump discharge of lubricating oil pump, the draining
Groove（3）Connected with the oil sump of engine or the external world, be equipped with pilot plunger in the valve chamber successively from left to right（4）, safety valve
Core（5）And spring（6）, the pilot plunger（4）Front portion is additionally provided with the feedback oil pocket of connection engine main oil gallery（7）, the tune
Segmented column plug（4）Afterbody is equipped with drain path（8）, the drain path（8）Connect oil inlet（2）And pilot plunger（4）Right-hand end
Face, makes oil inlet（2）Interior oil liquid pressure can be done directly on safe spool（5）On；
When the feedback oil pocket（7）During inner fluid hypertonia, the pilot plunger（4）In feedback oil pocket（7）Inner fluid pushes away
Move right under dynamic, the oil inlet（2）With drain pan（3）Connection, so that the fluid of pump discharge is to oil sump or the external world
Release；
When the feedback oil pocket（7）Inner fluid pressure is normal and when pump discharge pressure is excessive, the safe spool（5）In pump discharge
Individually move right under the action of oil liquid pressure, the oil inlet（2）Through drain path（8）With drain pan（3）Connection, so that
The fluid of pump discharge is released to oil sump or the external world.
A kind of 2. lubricating oil pump combination valve according to claim 1, it is characterised in that：The pilot plunger（4）Middle part is
Annular recess, the oil inlet（2）Communicated with the annular recess of plunger, the pilot plunger（4）Afterbody, which is equipped with to accommodate, pacifies
Full valve core（5）Safe valve chamber（9）, the drain path（8）Connect annular recess and safe valve chamber（9）, the safety valve
Chamber（9）Side wall be equipped with some and drain pan（3）The oil leak hole communicated（10）.
A kind of 3. lubricating oil pump combination valve according to claim 2, it is characterised in that：The safe spool（5）To be spherical,
The safe valve chamber（9）Front portion is equipped with and safe spool（5）The arc sealing surface of surface engagement, the safe spool（5）Pressing
Can be in safe valve chamber under the action of power oil（9）It is interior to move back and forth, so as to control the drain path（8）With drain pan（3）'s
Break-make.
A kind of 4. lubricating oil pump combination valve according to claim 2, it is characterised in that：The safe spool（5）For cylinder
Shape, the safe valve chamber（9）Also it is cylindrical cavity, the safe spool（5）Can be in safe valve chamber under the action of pressure oil
（9）It is interior to move back and forth, so as to control the drain path（8）With drain pan（3）Break-make.
A kind of 5. lubricating oil pump combination valve according to claim 1, it is characterised in that：The spring（6）Both ends are equipped with
Pad.
A kind of 6. lubricating oil pump combination valve according to claim 2, it is characterised in that：Angle position in annular recess
Use circular arc chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721151353.7U CN207349770U (en) | 2017-09-09 | 2017-09-09 | A kind of lubricating oil pump combination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721151353.7U CN207349770U (en) | 2017-09-09 | 2017-09-09 | A kind of lubricating oil pump combination valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349770U true CN207349770U (en) | 2018-05-11 |
Family
ID=62409655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721151353.7U Withdrawn - After Issue CN207349770U (en) | 2017-09-09 | 2017-09-09 | A kind of lubricating oil pump combination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207349770U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355665A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump combination valve |
| CN109357144A (en) * | 2018-12-18 | 2019-02-19 | 湖南机油泵股份有限公司 | A kind of pressure limiting valve plug screw and plunger type lubrication oil pump pressure limiting valve |
| CN109882614A (en) * | 2019-04-08 | 2019-06-14 | 湖南机油泵股份有限公司 | A kind of regulating valve |
-
2017
- 2017-09-09 CN CN201721151353.7U patent/CN207349770U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355665A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump combination valve |
| CN107355665B (en) * | 2017-09-09 | 2022-08-09 | 湖南机油泵股份有限公司 | Combination valve for oil pump |
| CN109357144A (en) * | 2018-12-18 | 2019-02-19 | 湖南机油泵股份有限公司 | A kind of pressure limiting valve plug screw and plunger type lubrication oil pump pressure limiting valve |
| CN109882614A (en) * | 2019-04-08 | 2019-06-14 | 湖南机油泵股份有限公司 | A kind of regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107355665A (en) | A kind of lubricating oil pump combination valve | |
| CN207349770U (en) | A kind of lubricating oil pump combination valve | |
| CN103038520A (en) | Time-delay valve | |
| CN106286451A (en) | Relief valve | |
| CN104769272A (en) | Valve arrangement | |
| CN107339473A (en) | A kind of two level pressure limiting valve | |
| CN205026353U (en) | Oil pump | |
| CN107701445B (en) | A kind of helical-lobe compressor | |
| EP2564065B1 (en) | Bellows backup chamber | |
| CN107504212A (en) | A kind of lockable formula check valve of hydraulic control | |
| CN105922203A (en) | Handheld hydraulic tool | |
| CN104963905B (en) | Two-stage overflow unloading valve | |
| CN103499007B (en) | Oil pump capacity adjusting means | |
| CN207131461U (en) | A kind of two level displacement-variable oil pump | |
| CN102518608B (en) | Hydraulic control loop | |
| CN209229328U (en) | A kind of pressure limiting valve plug screw and plunger type lubrication oil pump pressure limiting valve | |
| CN208594985U (en) | A kind of three-level change displacement control system based on two-chamber feedback | |
| CN204985901U (en) | Pressure -limiting valve | |
| CN103075317A (en) | Dual-pump type axial variable displacement plunger pump | |
| CN209876061U (en) | Novel well cementation pressure control valve | |
| CN208907398U (en) | Battery pump | |
| CN209163892U (en) | A kind of control pressurer system based on fixed displacement lubricating oil pump | |
| CN208900784U (en) | A kind of compact-sized safety valve and lubricating oil pump | |
| CN109779702B (en) | Turbine bearing seat structure with highly integrated oil circuit | |
| CN208702684U (en) | A kind of single screw compressor anti-liquid impact device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20220809 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20220809 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |