CN208535252U - Low leakage flow proportional control valve and oil pump solenoid valve with the control valve - Google Patents
Low leakage flow proportional control valve and oil pump solenoid valve with the control valve Download PDFInfo
- Publication number
- CN208535252U CN208535252U CN201820596156.4U CN201820596156U CN208535252U CN 208535252 U CN208535252 U CN 208535252U CN 201820596156 U CN201820596156 U CN 201820596156U CN 208535252 U CN208535252 U CN 208535252U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- hole
- central
- low leakage
- control valve
- 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.)
- Active
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of low leakage flow proportional control valves, including valve pocket, oil inlet side stepped hole and fuel-displaced side stepped hole are provided in the valve pocket, oil inlet side stepped hole is connected to fuel-displaced side stepped hole by central through hole, guiding pad is fixedly installed in the fuel-displaced side stepped hole, annular oil cavity is formed between the guiding pad and valve sleeving inner wall, the oil outlet being arranged on the annular oil cavity and valve pocket is connected to, steel ball is provided at the central through hole, the steel ball is placed in the slideway of guiding pad, pass through axial movement of the steel ball in slideway, utilize the cooperation of steel ball and central through hole, central through hole and steel ball is set to form different size of opening control fluid flow.Axial movement of the utility model by steel ball under external force promotion in slideway, utilize the cooperation of steel ball and central through hole, the size of control valve opening, to realize the control function of fluid flow size, when steel ball, which is pushed to, to be contacted with the first step of central through hole, low leakage sealed function is realized.
Description
Technical field
The utility model belongs to vehicle fuel oil supply system technical field, in particular to a kind of low leakage flow ratio control
Valve and oil pump solenoid valve with the control valve.
Background technique
Currently, there are two types of oil pump fuel metering valves: sliding spool flow proportional control valve and steel-ball type flow proportional control valve,
Widely applied mainly sliding spool flow proportional control valve, steel-ball type flow proportional control valve is in sliding spool flow ratio control
The technology upgrading that valve processed carries out above.
Existing steel-ball type flow proportional control valve is radial oil inlet mode, and sealing performance is poor, in fuel pump system
There is still a need for zero oil supply units of setting in system, and it is not high for the stability of flow control.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing one kind can be improved fuel pump electricity
Magnet valve sealing reliability, thus the low leakage flow ratio control for reducing oil supply system volume and reducing cost, increasing service life
Valve processed and oil pump solenoid valve with the control valve.
The technical solution of the utility model is achieved in that low leakage flow proportional control valve, including valve pocket, feature
It is: is provided with oil inlet side stepped hole and fuel-displaced side stepped hole, oil inlet side stepped hole and fuel-displaced side stage in the valve pocket
Rank hole is connected to by central through hole, is fixedly installed guiding pad in the fuel-displaced side stepped hole, in the guiding pad and valve pocket
Annular oil cavity is formed between wall, the oil outlet being provided on the annular oil cavity and valve pocket is connected to, sets at the central through hole
It is equipped with steel ball, the steel ball is placed in the slideway of guiding pad, by axial movement of the steel ball in slideway, utilizes steel ball and center
The cooperation of through-hole makes central through hole and steel ball form different size of opening control fluid flow.
Low leakage flow proportional control valve described in the utility model, end of the central through hole close to fuel-displaced side
It is provided with first step, the first step and steel ball cooperate, and for unidirectionally limiting to steel ball, and contact with steel ball and realize low let out
Leakage sealing.
Low leakage flow proportional control valve described in the utility model, the central through hole and steel ball corresponding segment are in cone
Shape, the countersunk portion and steel ball of the central through hole cooperate, and are used to form different size of opening control fluid flow.
Low leakage flow proportional control valve described in the utility model is set in the oil inlet side stage rank bore ends of the valve pocket
It is equipped with second step, is provided with strainer at the second step.
Low leakage flow proportional control valve described in the utility model is provided with seal groove in the valve pocket periphery,
The seal groove is for installing sealing ring.
Low leakage flow proportional control valve described in the utility model, the slideway axially extend setting by guiding pad
At least two guiding splines constitute, the slideway that surrounds of at least two guiding spline fitteds is used to limit the radial fortune of steel ball
It moves and the axial movement of steel ball is oriented to, formed oil-gap between adjacent guiding spline.
Low leakage flow proportional control valve described in the utility model, the guiding spline front end of the guiding pad be in
The front end of the horn structure of the countersunk portion corresponding matching of central through hole, the guiding pad is resisted against the stepped hole of central through hole
Bottom, to limit the installation site of guiding pad.
Low leakage flow proportional control valve described in the utility model, the rear end of the guiding pad are in disc structure, institute
The rear end for stating guiding pad is used to support guiding spline, and is fixedly connected with valve pocket.
A kind of oil pump solenoid valve with above-mentioned low leakage flow proportional control valve, the low leakage flow ratio control
Valve is mounted in oil pump, and the push rod end of the solenoid valve is inserted into the guiding being arranged in low leakage flow proportional control valve valve pocket
Pad is internal, and passes through control electromagnetic valve current size when the valve opened with the steel ball corresponding matching being arranged in the slideway of guiding pad
Variation to control position of the push rod in guiding pad, with limit steel ball with respect to central through hole unlatching cross-sectional sizes, realize stream
The control of body flow, when the valves are closed, the steel ball are tight with the first step of central through hole under the electromagnetic push effect of push rod
Closely connected conjunction is realized low leakage sealed.
Oil pump solenoid valve described in the utility model, in the solenoid valve, the tail end of push rod be provided in compression
The reset spring of state, when the valves are closed, the steel ball is under the action of the electromagnetic push of push rod and spring reset elastic force in
The first step of heart through-hole fits closely, and realizes low leakage sealed.
The utility model utilizes steel ball and central through hole by steel ball axial movement in slideway under external force promotion
Cooperation, the size of control valve opening, so that the control function of fluid flow size is realized, when steel ball is pushed to and central through hole
When first step contacts, low leakage sealed function is realized.
The utility model compared with prior art, has following technical effect that
1, the utility model is due to realizing low leakage sealed function, in fuel pump system, can save the oil supply unit that zero-suppresses,
Cost is reduced, volume is reduced, mitigates weight.
2, the utility model is sealed compared to slide valve using minim gap, due to using steel ball to contact linear sealing in same equipressure
In the case of power, sealing performance is more preferable, more reliable, and the service life is long, and manufacturing cost is low.
3, the guiding pad in the utility model is not damaged to the steel ball moved in slideway due to using plastic products, steel ball
Service life is long.
4, the utility model due to using steel ball contact line Seal Design, answered by electromagnetic push and spring simultaneously by steel ball
Position elastic force, therefore sealing performance is reliable.
5. the utility model can be such that steel ball closes in valve due to the contact sealing means using steel ball with step structure
When, radial direction area is smaller at steel ball sealing, thus smaller in same oil pressure steel ball axially loaded, sealing performance is more reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of valve pocket in the utility model.
Fig. 3 and Fig. 4 is the structural schematic diagram of guiding pad in the utility model.
Fig. 5 is schematic diagram of the valve of the utility model when opening.
Fig. 6 is the schematic diagram of the valve of the utility model when closed.
Appended drawing reference: 1 is valve pocket, and 2 be oil inlet side stepped hole, and 3 be fuel-displaced side stepped hole, and 4 be center through-hole, and 5 be guiding
Pad, 6 be annular oil cavity, and 7 be oil outlet, and 8 be steel ball, and 9 be slideway, and 10 be first step, and 11 be second step, and 12 be strainer,
13 be seal groove, and 14 be sealing ring, and 15 be guiding spline, and 16 be countersunk portion, and 17 be horn structure, and 18 be oil-gap,
19 be disc structure, and 20 be solenoid valve, and 21 be push rod, and 22 be reset spring.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figs 1-4, a kind of low leakage flow proportional control valve, including valve pocket 1, the valve pocket are overall structures,
But separate structure is provided with oil inlet side stepped hole 2 and fuel-displaced side stepped hole 3, oil inlet side stepped hole in the valve pocket 1
2 are connected to fuel-displaced side stepped hole 3 by central through hole 4, are fixedly installed guiding pad 5 in the fuel-displaced side stepped hole 3, described
Annular oil cavity 6 is formed between 1 inner wall of guiding pad 5 and valve pocket, the oil outlet 7 being provided on the annular oil cavity 6 and valve pocket 1 connects
It is logical, steel ball 8 is provided at the central through hole 4, the steel ball 8 is placed in the slideway 9 of guiding pad 5, by steel ball 8 in slideway
Axial movement in 9 makes central through hole 4 and steel ball 8 form different size of opening using the cooperation of steel ball 8 and central through hole 4
Control fluid flow.
Wherein, the central through hole 4 is provided with first step 10 close to the end of fuel-displaced side, the first step 10 with
Steel ball 8 cooperates, and for unidirectionally limiting to steel ball 8, and contacts with steel ball 8 and realizes low leakage sealed, the central through hole 4 and steel ball
8 corresponding segments are tapered, and the countersunk portion 16 and steel ball 8 of the central through hole 4 cooperate, and are used to form different size of opening control
Fluid flow；2 end of oil inlet side stepped hole of the valve pocket 1 is provided with second step 11, is set at the second step 11
It is equipped with strainer 12, the strainer and oil inlet side stepped hole cooperatively form collection chamber, and the oil through strainer filtering enters in collection chamber,
1 periphery of valve pocket is provided with seal groove 13, the seal groove 13 is for installing sealing ring 14.
As shown in Figures 3 and 4, the slideway 9 is axially extended at least two guiding 15 structures of spline of setting by guiding pad 5
At at least two guiding spline 15 matches the slideway 9 being encircled into for limiting the radial motion of steel ball 8 and to the axis of steel ball 8
It is oriented to movement, formed oil-gap 18,15 front end of guiding spline of the guiding pad 5 between adjacent guiding spline 15
In the horn structure 17 of 16 corresponding matching of countersunk portion with central through hole 4, it is logical that the front end of the guiding pad 5 is resisted against center
The stepped hole bottom in hole 4, to limit the installation site of guiding pad 5, the rear end of the guiding pad 5 is in disc structure 19, described to lead
It is used to support guiding spline 15 to the rear end of pad 5, and is fixedly connected with valve pocket 1.
A kind of oil pump solenoid valve with above-mentioned low leakage flow proportional control valve, the low leakage flow proportional control valve
It is mounted in oil pump, 21 end of push rod of the solenoid valve 20 is inserted into setting in low leakage flow proportional control valve valve pocket 1
Inside guiding pad 5, and with 8 corresponding matching of steel ball that is arranged in the slideway of guiding pad 59, in the solenoid valve 20, push rod 21
Tail end is provided with the reset spring 22 in compressive state.
As shown in figure 5, when the valve opened, controlling push rod 21 in guiding pad by controlling the variation of electromagnetic valve current size
The control of fluid flow is realized, i.e. steel ball is opened to limit unlatching cross-sectional sizes of the steel ball 8 with respect to central through hole 4 in position in 5
The size for opening valve port is influenced very little by oil pressure, can be ignored, and is control of the electric current to push rod position in slideway in solenoid valve
System, control mode are that the feedback controling mode-of automation is automatically controlled, generate the steel ball under different displacements using push rod, finally compare
Example control flow, i.e. constant-pressure conditions, current control openings of sizes, ratio adjust flow；As shown in fig. 6, when the valves are closed, it is described
Steel ball 8 fits closely under the effect of push rod 21 with the first step 10 of central through hole 4, realizes that electromagnetic push and spring restoring force are double
It is low leakage sealed under recast, due to the contact sealing means using steel ball with step structure, steel ball can be made to close in valve
When, radial direction area is smaller at steel ball sealing, thus smaller in same oil pressure steel ball axially loaded, sealed pressure higher grade,
To improve sealing performance, and double gravity when steel ball sealing by electromagnetic push and spring reset elastic force, steel ball
Salable pressure greatly improves, to meet the seal request of higher pressure fluid.
For the utility model in certain pressure operating range, electric current is constant, and steel ball is under different pressures impact, the power that is subject to
Relative to electromagnetic force very little, there is small beneficial synergy fruit to the opening of valve, inlet pressure is higher, and the flow of outlet is bigger, circulation
Characteristic curve is more linear, is more able to satisfy that oil pump valve revolving speed is higher, the bigger linear regulation demand of flow.Meanwhile dynamic iron block assembly
There is axially stop block on the right, to limit the maximum open that steel ball and taper hole are formed, avoids under high inlet pressure, steel ball by
Power is mobile, and opening increases, the super upper limit of flow, protects the oil pressure relief of oil circuit below.I.e. the utility model is to alleviate steel ball by oil
The influence degree that pressure impact causes opening to change, flow characteristics curve is more linear, meets oil pump performance demand.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. low leakage flow proportional control valve, including valve pocket (1), it is characterised in that: be provided with oil inlet side in the valve pocket (1)
Stepped hole (2) and fuel-displaced side stepped hole (3), oil inlet side stepped hole (2) and fuel-displaced side stepped hole (3) pass through central through hole
(4) it is connected to, is fixedly installed guiding pad (5) in the fuel-displaced side stepped hole (3), the guiding pad (5) and valve pocket (1) inner wall
Between form annular oil cavity (6), the oil outlet (7) being provided on the annular oil cavity (6) and valve pocket (1) is connected to, in described
It is provided at heart through-hole (4) steel ball (8), the steel ball (8) is placed in the slideway (9) of guiding pad (5), by steel ball (8) in cunning
Axial movement in road (9) forms central through hole (4) and steel ball (8) not using the cooperation of steel ball (8) and central through hole (4)
Opening with size controls fluid flow.
2. low leakage flow proportional control valve according to claim 1, it is characterised in that: the central through hole (4) is close
The end of fuel-displaced side is provided with first step (10), and the first step (10) and steel ball (8) cooperate, for steel ball (8)
Unidirectional limit, and it is low leakage sealed contact with steel ball (8) realization.
3. low leakage flow proportional control valve according to claim 2, it is characterised in that: the central through hole (4) and steel
Ball (8) corresponding segment is tapered, and the countersunk portion (16) of the central through hole (4) and steel ball (8) cooperate, and is used to form different size
Opening control fluid flow.
4. low leakage flow proportional control valve according to claim 1, it is characterised in that: the oil inlet in the valve pocket (1)
Side stepped hole (2) end is provided with second step (11), and strainer (12) are provided at the second step (11).
5. low leakage flow proportional control valve according to claim 1, it is characterised in that: set in the valve pocket (1) periphery
It is equipped with seal groove (13), the seal groove (13) is for installing sealing ring (14).
6. low leakage flow proportional control valve as claimed in any of claims 1 to 5, it is characterised in that: the cunning
Road (9) is made of at least two guiding spline (15) that guiding pad (5) axially extends setting, at least two guiding spline
(15) it is used to limit the radial motion of steel ball (8) with the slideway (9) being encircled into and the axial movement of steel ball (8) is oriented to,
Oil-gap (18) were formed between adjacent guiding spline (15).
7. low leakage flow proportional control valve according to claim 6, it is characterised in that: the guiding of the guiding pad (5)
Spline (15) front end is in the horn structure (17) with countersunk portion (16) corresponding matching of central through hole (4), the guiding pad
(5) front end is resisted against the stepped hole bottom of central through hole (4), to limit the installation site of guiding pad (5).
8. low leakage flow proportional control valve according to claim 6, it is characterised in that: the rear end of the guiding pad (5)
In disc structure (19), the rear end of the guiding pad (5) is used to support guiding spline (15), and is fixedly connected with valve pocket (1).
9. a kind of oil pump solenoid valve with low leakage flow proportional control valve as claimed in any of claims 1 to 8 in one of claims,
It is characterized by: the low leakage flow proportional control valve is mounted in oil pump, push rod (21) end of the solenoid valve (20)
It is internal to be inserted into the guiding pad (5) being arranged in low leakage flow proportional control valve valve pocket (1), and the slideway (9) with guiding pad (5)
Steel ball (8) corresponding matching of interior setting controls push rod (21) by controlling the variation of electromagnetic valve current size when the valve opened
Fluid flow is realized to limit the unlatching cross-sectional sizes of steel ball (8) with respect to central through hole (4) in position in guiding pad (5)
Control, when the valves are closed, first step of the steel ball (8) under the electromagnetic push effect of push rod (21) with central through hole (4)
(10) it fits closely, realizes low leakage sealed.
10. oil pump solenoid valve according to claim 9, it is characterised in that: interior, push rod (21) in the solenoid valve (20)
Tail end is provided with the reset spring (22) in compressive state, and when the valves are closed, the steel ball (8) pushes away in the electromagnetism of push rod (21)
It fits closely, realizes low leakage sealed with the first step (10) of central through hole (4) under the action of power and spring reset elastic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596156.4U CN208535252U (en) | 2018-04-25 | 2018-04-25 | Low leakage flow proportional control valve and oil pump solenoid valve with the control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596156.4U CN208535252U (en) | 2018-04-25 | 2018-04-25 | Low leakage flow proportional control valve and oil pump solenoid valve with the control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208535252U true CN208535252U (en) | 2019-02-22 |
Family
ID=65396948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820596156.4U Active CN208535252U (en) | 2018-04-25 | 2018-04-25 | Low leakage flow proportional control valve and oil pump solenoid valve with the control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208535252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374917A (en) * | 2018-04-25 | 2018-08-07 | 绵阳富临精工机械股份有限公司 | A kind of low leakage flow proportional control valve and the oil pump solenoid valve with the control valve |
-
2018
- 2018-04-25 CN CN201820596156.4U patent/CN208535252U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374917A (en) * | 2018-04-25 | 2018-08-07 | 绵阳富临精工机械股份有限公司 | A kind of low leakage flow proportional control valve and the oil pump solenoid valve with the control valve |
| CN108374917B (en) * | 2018-04-25 | 2024-06-04 | 绵阳富临精工机械股份有限公司 | Low leakage flow proportional control valve and oil pump electromagnetic valve with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101541571B (en) | Shock absorber having a continuously variable semi-active valve | |
| US9038659B2 (en) | Relief valve device | |
| CN104088793B (en) | A kind of air compressor air intake control valve assembly | |
| CN111442099A (en) | Heavy-calibre guide's formula high pressure normally open solenoid valve | |
| CN208535252U (en) | Low leakage flow proportional control valve and oil pump solenoid valve with the control valve | |
| CN108194442B (en) | Two-position two-way electromagnetic valve and working method thereof | |
| CN205298388U (en) | Damping air spring | |
| CN109185252A (en) | Stepless air adjusting mechanism and piston compressor | |
| CN207004702U (en) | Combined type electric-controlled co-rail high-pressure oil pump | |
| CN201273386Y (en) | Piston type pressure-control check valve | |
| CN107504212A (en) | A kind of lockable formula check valve of hydraulic control | |
| CN107740735B (en) | A kind of electro-hydraulic linkage gas valve | |
| CN106351902A (en) | Electric proportional displacement control mechanism for hydraulic axial plunger pump | |
| CN107504213B (en) | A kind of the proportional overflow solenoid valve and its working method of sliding valve structure | |
| CN108374917A (en) | A kind of low leakage flow proportional control valve and the oil pump solenoid valve with the control valve | |
| CN201560933U (en) | Self-assignment constant-power variable valve core mechanism | |
| CN202081763U (en) | Floor spring with simple structure | |
| CN208774751U (en) | A kind of electric cylinders structure of integrated electrical control braking force aid system | |
| WO2018018744A1 (en) | Relief regulating valve for railway vehicle | |
| CN110017395B (en) | External control valve for variable displacement compressor | |
| CN108150473A (en) | A kind of buffer overflow valve | |
| CN207906532U (en) | A kind of electromagnetic valve structure of control fluid flow | |
| CN207018607U (en) | Automobile steering device Integral electric control proportioning valve | |
| CN209146017U (en) | A kind of stepless air adjusting mechanism and piston compressor | |
| CN109973356A (en) | Stepless air adjusting mechanism and reciprocating compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |