CN106439125A - Variable-valve-opening pressure regulating valve for fuel oil pump - Google Patents
Variable-valve-opening pressure regulating valve for fuel oil pump Download PDFInfo
- Publication number
- CN106439125A CN106439125A CN201610752424.2A CN201610752424A CN106439125A CN 106439125 A CN106439125 A CN 106439125A CN 201610752424 A CN201610752424 A CN 201610752424A CN 106439125 A CN106439125 A CN 106439125A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil inlet
- oil
- pressure regulating
- pressure
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a variable-valve-opening pressure regulating valve for a fuel oil pump. The pressure regulating valve comprises a valve casing, wherein a valve cavity is arranged in the valve casing, an oil inlet channel communicating with the valve cavity is arranged on the valve casing, an oil outlet channel communicating with the valve cavity is further arranged on the valve casing, the oil outlet channel is close to the oil inlet channel, and the central line of the oil outlet channel is perpendicular with the central line of the oil inlet channel; a valve element is arranged in the valve cavity and is close to the oil inlet channel, one surface of the valve element is blocked by the oil inlet channel, and the other surface of the valve element is blocked by the oil outlet channel; and a pressure regulating spring is mounted on the surface which is back-to-back with the surface blocking the oil inlet channel, one end of the pressure regulating spring is mounted on the valve element, and the other end of the pressure regulating spring is supported on the wall of the valve cavity. The pressure regulating valve better controls the variation degree of pressure under the condition of variable flow, keeps the pressure of a fuel oil system stable when a vehicle works, and avoids the pressure drop of the fuel oil system when the vehicle works, which is caused by the flow drop of a pump core due to long-time use.
Description
Technical field
The present invention relates to a kind of fuel pump pressure actuator, especially a kind of change valve port fuel pump pressure regulating valve.
Background technology
Fuel pump pressure actuator is one of conventional component parts of electro jet car fuel injection system.Effect：Ensure vapour
The normal part of car oil road intermediate fuel oil pressure.
Conventional fuel oil pressure regulator, using determining valve port opening, its structure as shown in figure 1, when oil pressure exceeds standard value,
High pressure fuel can push and move on diaphragm, and ball valve is opened, fuel system pressure release, and unnecessary fuel oil flows into oil sump through oil return pipe；Work as pressure
During the low standard value excessively of power, pressure spring can push diaphragm and close ball valve, stop oil return, fuel system pressurize.Determine valve port pressure
The advantage of actuator is that cost is cheap, it is simple to process, and shortcoming is that valve port opening is certain, and valve port will not change with the increase of flow
Become, lead to that valve pressure characteristic slope is higher, particularly when valve body is less, pressure is larger with changes in flow rate.Because vehicle makes
With during, can there is fluctuation in voltage, lead to fuel pump core changes in flow rate, in addition fuel pump core flux depression.In order to protect
Hold vehicle and use intermediate fuel oil pressure stability, each automobile fuel pump producer is become using change valve port fuel pump pressure regulating valve highly desirable
Thing.
Content of the invention
The technical problem to be solved is to provide a kind of change valve port fuel pump pressure regulating valve.
Technical scheme is as follows：A kind of change valve port fuel pump pressure regulating valve, including valve casing, in described valve casing
Be provided with valve pocket it is characterised in that：Oil inlet passage with valve pocket UNICOM is provided with described valve casing, described valve casing also sets up
There is the oil discharge passage with valve pocket UNICOM, described oil discharge passage is near oil inlet passage, and the centrage of described oil discharge passage and oil-feed
The central axis of passage, are provided with valve element near oil inlet passage in described valve pocket, and one of face of described valve element is by oil-feed
Passage blocks, and oil discharge passage is blocked by another face, and the face opposite with the face blocking oil inlet passage is installed pressure spring, described
One end of pressure spring is contained on valve element, and the other end is supported on the wall of valve pocket.
Using such scheme, fuel oil enters valve pocket, increasing with system pressure by oil inlet passage, promotes valve element toward tune
Pressing spring direction is moved, and valve port is opened, and fuel oil carries out pressure release by the oil discharge passage of processing.Valve element Lift is with flow
Change and change, thus ensure that stablizing of system pressure, reduce pressure regulator because flow change lead to larger
Change.
In such scheme：Adjusting nut for adjusting pressure spring pretightning force is additionally provided with described valve pocket.Adjustment
Nut is contained on the wall of valve pocket, plays the effect of adjustment pressure spring pretightning force.
In such scheme：Described oil inlet passage is axially arranged along valve casing, and described oil discharge passage is along the footpath of valve casing
To setting.
Beneficial effect：Using the pressure regulator of the present invention, in the case that flow changes, pressure change degree is little, makes
When obtaining vehicle operation, fuel system pressure keeps stable, has evaded the vehicle operation because leading to for a long time using pump core flow reduction
When fuel oil decorum pressure reduction.
Brief description
Fig. 1 is the structural representation before improving.
Fig. 2 is the structural representation of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Embodiment 1：
As shown in Fig. 2 the change valve port fuel pump pressure regulating valve of the present invention is by valve casing 1, valve element 2, pressure spring 3, adjustment
Nut 4 grade part forms,
It is provided with valve pocket 1a in valve casing 1, valve casing 1 is provided with the oil inlet passage 1b with valve pocket 1a UNICOM, oil inlet passage
1b is axially arranged along valve casing 1, is additionally provided with the oil discharge passage 1c with valve pocket 1a UNICOM on valve casing 1, and oil discharge passage 1c leans on
Nearly oil inlet passage 1b, oil discharge passage 1c are radially arranged along valve casing 1.In the centrage of oil discharge passage 1c and oil inlet passage 1b
Heart line is vertical, in valve pocket 1a, oil inlet passage 1b is provided with valve element 2, oil inlet passage 1b is blocked by one of face of valve element 2,
Oil discharge passage 1c is blocked by another face, and the face opposite with the face blocking oil inlet passage 1b is installed pressure spring 3, pressure spring
3 one end is contained on valve element 2, and the other end is supported on the wall of valve pocket 1a.Further adjust the pre- of pressure spring 3 for convenience
Clamp force, the wall of valve pocket 1a is additionally provided with adjusting nut 4, and the other end of pressure spring 3 is connected with adjusting nut 4.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art is no
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
It is available that personnel pass through logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (3)
1. a kind of change valve port fuel pump pressure regulating valve, including valve casing (1), is provided with valve pocket (1a) in described valve casing (1), its
It is characterised by：Oil inlet passage (1b) with valve pocket (1a) UNICOM is provided with described valve casing (1), described valve casing (1) also sets
It is equipped with the oil discharge passage (1c) with valve pocket (1a) UNICOM, described oil discharge passage (1c) is near oil inlet passage (1b) and described fuel-displaced
The centrage of passage (1c) and the central axis of oil inlet passage (1b), are arranged near oil inlet passage (1b) in described valve pocket (1a)
There is valve element (2), oil inlet passage (1b) is blocked by one of face of described valve element (2), oil discharge passage (1c) is kept off by another face
Live, pressure spring (3) is installed in the face opposite with the face blocking oil inlet passage (1b), one end of described pressure spring (3) is contained in
On valve element (2), the other end is supported on the wall of valve pocket (1a).
2. according to claim 1 become valve port fuel pump pressure regulating valve it is characterised in that：Also set up on described valve pocket (1a)
There is the adjusting nut (4) for adjusting pressure spring pretightning force.
3. according to claim 1 or claim 2 change valve port fuel pump pressure regulating valve it is characterised in that：Described oil inlet passage (1b)
Axially arranged along valve casing (1), described oil discharge passage (1c) being radially arranged along valve casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752424.2A CN106439125A (en) | 2016-08-30 | 2016-08-30 | Variable-valve-opening pressure regulating valve for fuel oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752424.2A CN106439125A (en) | 2016-08-30 | 2016-08-30 | Variable-valve-opening pressure regulating valve for fuel oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439125A true CN106439125A (en) | 2017-02-22 |
Family
ID=58089972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610752424.2A Pending CN106439125A (en) | 2016-08-30 | 2016-08-30 | Variable-valve-opening pressure regulating valve for fuel oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439125A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763949A (en) * | 2017-02-28 | 2017-05-31 | 长治市神马科技有限公司 | Tube built-in safety overflow valve |
| CN106969173A (en) * | 2017-04-18 | 2017-07-21 | 重庆万力联兴实业(集团)有限公司 | A kind of through type damping check valve component |
| CN108019171A (en) * | 2017-12-28 | 2018-05-11 | 中国石油集团川庆钻探工程有限公司 | A kind of radial direction pressure relief device for down-hole equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6068022A (en) * | 1999-08-25 | 2000-05-30 | Schrader-Bridgeport International, Inc. | Jet pump with improved control valve and pressure relief valve therefore |
| JP2000170933A (en) * | 1998-12-04 | 2000-06-23 | Zexel Corp | Pressure control valve |
| CN201787310U (en) * | 2010-08-30 | 2011-04-06 | 赵大平 | Auxiliary pressure relief valve |
-
2016
- 2016-08-30 CN CN201610752424.2A patent/CN106439125A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000170933A (en) * | 1998-12-04 | 2000-06-23 | Zexel Corp | Pressure control valve |
| US6068022A (en) * | 1999-08-25 | 2000-05-30 | Schrader-Bridgeport International, Inc. | Jet pump with improved control valve and pressure relief valve therefore |
| CN201787310U (en) * | 2010-08-30 | 2011-04-06 | 赵大平 | Auxiliary pressure relief valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763949A (en) * | 2017-02-28 | 2017-05-31 | 长治市神马科技有限公司 | Tube built-in safety overflow valve |
| CN106969173A (en) * | 2017-04-18 | 2017-07-21 | 重庆万力联兴实业(集团)有限公司 | A kind of through type damping check valve component |
| CN108019171A (en) * | 2017-12-28 | 2018-05-11 | 中国石油集团川庆钻探工程有限公司 | A kind of radial direction pressure relief device for down-hole equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106439125A (en) | Variable-valve-opening pressure regulating valve for fuel oil pump | |
| CN101925768B (en) | Piloted valve | |
| CN103032612A (en) | Dual-opening-pressure dual-displacement safety valve | |
| EP2711333B1 (en) | Fuel filling nozzle with vapour recovery means | |
| CN102384610B (en) | Pore plate throttling device | |
| EP1508688A1 (en) | Fuel supply system and fuel pressure regulator | |
| CN211501147U (en) | Ultrahigh-pressure large-flow high-water-base unloading valve | |
| CN201851726U (en) | Pilot overflow valve | |
| CN101725742A (en) | One-way overflow valve | |
| CN102705289B (en) | Energy recovery balance valve | |
| CN102606554A (en) | Pressure adjusting device and hydraulic system | |
| US6318405B1 (en) | Fuel pressure regulator with fluidic assist | |
| CN202209456U (en) | Differential type safety valve | |
| CN201513402U (en) | Pilot-operated type proportional relief valve | |
| CN105240176A (en) | Pressure-adjustable fuel distributor | |
| CN111005906A (en) | Ultrahigh-pressure large-flow high-water-base unloading valve | |
| CN201874908U (en) | Special valve for air-conditioner of engineering machinery | |
| CN205349901U (en) | Back pressure valve | |
| CN101907119A (en) | Link bolt with unloading overflow valve | |
| CN206092234U (en) | Fuel pump parallel hangs down slope pressure characteristic pressure regulator | |
| CN108150472A (en) | A kind of buffer overflow valve | |
| CN100333953C (en) | Flow control device for power steering | |
| CN203614485U (en) | Overflow valve | |
| CN210715349U (en) | Hydraulic balance pressure regulating valve | |
| US20100071363A1 (en) | Propane Injection System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |