CN103291515A - Proportional flow valve for common-rail pump - Google Patents
Proportional flow valve for common-rail pump Download PDFInfo
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- CN103291515A CN103291515A CN2013102348170A CN201310234817A CN103291515A CN 103291515 A CN103291515 A CN 103291515A CN 2013102348170 A CN2013102348170 A CN 2013102348170A CN 201310234817 A CN201310234817 A CN 201310234817A CN 103291515 A CN103291515 A CN 103291515A
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- valve
- valve body
- spool
- proportional flow
- rail pump
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Abstract
The invention relates to a proportional flow valve for a common-rail pump. A valve body is fixedly arranged at the bottom end portion of a proportional electric magnet, a flow hole is formed in the valve body, an installation sliding hole is formed in the valve body in the axial direction of the valve body, the installation sliding hole and the flow hole are selectively communicated, a spring base is fixedly arranged inside the bottom end of the installation sliding hole, a valve core is installed inside the installation sliding hole above the spring base in a sliding mode, a balanced hole is formed in the valve core, an oil outlet hole is formed in the spring base, a spring is arranged on the spring base, and the top end portion of the spring is abutted against the valve core. According to the proportional flow valve for the common-rail pump, the flow valve is of a pressure auto-balance structure, performance of the valve is not influenced by pressure, and stability is good. A characteristic performance curve of the flow valve can be accurately adjusted, and consistency of the flow valve can be ensured. The proportional flow valve for the common-rail pump is simple and reliable in structure, convenient to adjust and simple in manufacturing process.
Description
Technical field
The present invention relates to a kind of valve, especially a kind of rail pump proportional flow control valve altogether.
Background technique
Rare day by day along with the increasingly stringent of Abgasgesetz and the energy, requirement to diesel fuel injection system also improves constantly, common rail system is other oil-fired systems relatively, its pressure, fuel injection quantity, oil spout are sprayed constantly, in advance and the back spray can accurately be controlled, and its discharging and fuel economy have great improvement.In the common rail system, be installed on the pressure regulation effect that proportional flow control valve on the common rail pump plays common rail system, can accurately control the oil mass that enters high pressure oil pump, the performance of whole common rail system is had very significant effects.It is non-equilibrium valve that yet some proportional flow control valves are arranged, and stability and the conformity of valve are poor, can't accomplish accurate adjusting, unfavorable for the accurate control of common rail system rail pressure, directly influences fuel economy, power character and the emission level of diesel engine.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of simple in structure, pressure self balancing is provided, can effectively accurately controls the common rail pump proportional flow control valve of the flow that enters common rail pump.
According to technological scheme provided by the invention, described rail pump proportional flow control valve altogether, fixedly there is valve body bottom at proportion electro-magnet, offer metering orifice at valve body, in valve body, axially offer the installation slide opening along it, slide opening is installed to be communicated with the metering orifice selectivity, in the bottom internal fixation that slide opening is installed spring seat is arranged, be slidingly fitted with spool in the installation slide opening above spring seat, offer equalizing orifice at spool, offer oil outlet at described spring seat, be provided with spring at spring seat, tip portion and the spool of spring offset.
The axis of described equalizing orifice and the axis of spool are set in parallel.Described equalizing orifice has two or more, and equalizing orifice is evenly distributed round the axis of spool.
Described valve body is pressed into proportion electro-magnet by interference fit.
The axis of described metering orifice and the axis of valve body are vertical setting.
The present invention has the following advantages: 1, the present invention is the Flow valve of pressure self balancing structure, the influence that the performance of valve is not stressed, good stability; 2, performance curve of the present invention can accurately be regulated, and can guarantee consistency of product; 3, the present invention is simple and reliable for structure, and debugging is convenient, and production technology is simple.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Should be total to rail pump proportional flow control valve, fixedly there is valve body 4 bottom at proportion electro-magnet 5, offer metering orifice 4.1 at valve body 4, in valve body 4, axially offer the installation slide opening along it, slide opening is installed to be communicated with metering orifice 4.1 selectivity, in the bottom internal fixation that slide opening is installed spring seat 1 is arranged, be slidingly fitted with spool 3 in the installation slide opening above spring seat 1, offer equalizing orifice 3.1 at spool 3, offer oil outlet 1.1 at described spring seat 1, be provided with spring 2 at spring seat 1, the tip portion of spring 2 and spool 3 offset.
The axis of the axis of described equalizing orifice 3.1 and spool 3 is set in parallel.Described equalizing orifice 3.1 has two or more, and equalizing orifice 3.1 is evenly distributed round the axis of spool 3.
Described valve body 4 is pressed into proportion electro-magnet 5 by interference fit.
The axis of the axis of described metering orifice 4.1 and valve body 4 is vertical setting.
Rail pump altogether of the present invention is with in the proportional flow control valve, and valve body 4 is pressed into proportion electro-magnet 5 by interference fit, and spool 3 is a mating plate with valve body 4, and spool 3 can move up and down for 4 li at valve body.Have metering orifice 4.1 on the valve body 4, fuel oil can advance from metering orifice 4.1, goes out from the oil outlet 1.1 of spring seat 1.The athletic meeting of spool 3 in valve body 4 makes spool 3 cover the part area of metering orifice 4.1, thereby regulates the flow that enters proportional flow control valve, has equalizing orifice 3.1 on the spool 3, can guarantee that the pressure of spool 3 front and back equates.
Spring seat 1 is pressed into the inside, bottom of the installation slide opening of valve body 4 by interference fit, between spring seat 1 and the spool 3 spring 2 is installed.
Working principle of the present invention is as follows:
The present invention is a kind of pressure self-balancing type proportional flow control valve, push rod in the middle of the proportion electro-magnet 5 can be exported and the directly proportional electromagnetic force of electric current, be applied on the spool 3 by push rod, spool 3 is subjected to the effect of spring 2 simultaneously, electromagnetic force and spring force make spool 3 be equilibrated at certain position, when changing the electric current of proportion electro-magnet 5, the corresponding change of the electromagnetic force of proportion electro-magnet 5, spool 3 moves to corresponding equinoctial point, the athletic meeting of spool 3 covers the metering orifice 4.1 exit portion areas of valve body 4, thereby change the circulation area of the metering orifice 4.1 of valve body 4, play the effect of regulating flow, by adjusting the compression distance of spring seat 1, just can guarantee the conformity between the different valves.
Claims (5)
1. one kind is total to rail pump proportional flow control valve, in the bottom of proportion electro-magnet (5) valve body (4) is arranged fixedly, it is characterized in that: offer metering orifice (4.1) at valve body (4), in valve body (4), axially offer the installation slide opening along it, slide opening is installed to be communicated with metering orifice (4.1) selectivity, in the bottom internal fixation that slide opening is installed spring seat (1) is arranged, in the installation slide opening of spring seat (1) top, be slidingly fitted with spool (3), offer equalizing orifice (3.1) at spool (3), offer oil outlet (1.1) at described spring seat (1), be provided with spring (2) at spring seat (1), the tip portion of spring (2) and spool (3) offset.
2. altogether rail pump proportional flow control valve as claimed in claim 1, it is characterized in that: the axis of the axis of described equalizing orifice (3.1) and spool (3) is set in parallel.
3. altogether rail pump proportional flow control valve as claimed in claim 2, it is characterized in that: described equalizing orifice (3.1) has two or more, and equalizing orifice (3.1) is evenly distributed round the axis of spool (3).
4. altogether rail pump proportional flow control valve as claimed in claim 1, it is characterized in that: described valve body (4) is pressed into proportion electro-magnet (5) by interference fit.
5. altogether rail pump proportional flow control valve as claimed in claim 1, it is characterized in that: the axis of the axis of described metering orifice (4.1) and valve body (4) is vertical setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234817.0A CN103291515B (en) | 2013-06-13 | 2013-06-13 | Proportional flow valve for common-rail pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234817.0A CN103291515B (en) | 2013-06-13 | 2013-06-13 | Proportional flow valve for common-rail pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103291515A true CN103291515A (en) | 2013-09-11 |
| CN103291515B CN103291515B (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310234817.0A Active CN103291515B (en) | 2013-06-13 | 2013-06-13 | Proportional flow valve for common-rail pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103291515B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593731A (en) * | 2017-01-22 | 2017-04-26 | 无锡威孚高科技集团股份有限公司 | Proportional flow valve for high pressure common rail pump of diesel engine |
| CN106762301A (en) * | 2017-01-22 | 2017-05-31 | 无锡威孚高科技集团股份有限公司 | The split type proportional flow control valve of diesel oil high voltage common rail pump |
| CN108266358A (en) * | 2018-01-26 | 2018-07-10 | 中航力源液压股份有限公司 | A kind of variable pump operation handle total travel control device and its composite control method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182638A (en) * | 1999-02-25 | 2001-07-06 | Nippon Soken Inc | Pressure reducing regulating valve of fuel injection system |
| US20050022791A1 (en) * | 2003-07-29 | 2005-02-03 | Christian Braeuer | Pressure regulating valve for common rail fuel injection systems |
| CN200978966Y (en) * | 2006-10-31 | 2007-11-21 | 浙江春晖智能控制股份有限公司 | Flow proportion pilot valve for fluid |
| CN101205683A (en) * | 2006-12-14 | 2008-06-25 | Lg电子株式会社 | Washing machine and method for controlling the same |
| CN101772666A (en) * | 2007-08-07 | 2010-07-07 | 罗伯特·博世有限公司 | Solenoid valve |
| CN101903642A (en) * | 2007-12-21 | 2010-12-01 | 罗伯特·博世有限公司 | Pressure regulating valve for regulating the pressure in a high-pressure reservoir |
| CN101975291A (en) * | 2010-10-30 | 2011-02-16 | 无锡隆盛科技有限公司 | Electron pressure regulating valve |
| CN202659912U (en) * | 2012-06-22 | 2013-01-09 | 浙江春晖智能控制股份有限公司 | Electronic gas-liquid ratio adjusting valve for recycling oil and gases |
| CN203285598U (en) * | 2013-06-13 | 2013-11-13 | 无锡威孚汽车柴油系统有限公司 | Proportional flow valve for common rail pump |
-
2013
- 2013-06-13 CN CN201310234817.0A patent/CN103291515B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182638A (en) * | 1999-02-25 | 2001-07-06 | Nippon Soken Inc | Pressure reducing regulating valve of fuel injection system |
| US20050022791A1 (en) * | 2003-07-29 | 2005-02-03 | Christian Braeuer | Pressure regulating valve for common rail fuel injection systems |
| CN200978966Y (en) * | 2006-10-31 | 2007-11-21 | 浙江春晖智能控制股份有限公司 | Flow proportion pilot valve for fluid |
| CN101205683A (en) * | 2006-12-14 | 2008-06-25 | Lg电子株式会社 | Washing machine and method for controlling the same |
| CN101772666A (en) * | 2007-08-07 | 2010-07-07 | 罗伯特·博世有限公司 | Solenoid valve |
| CN101903642A (en) * | 2007-12-21 | 2010-12-01 | 罗伯特·博世有限公司 | Pressure regulating valve for regulating the pressure in a high-pressure reservoir |
| CN101975291A (en) * | 2010-10-30 | 2011-02-16 | 无锡隆盛科技有限公司 | Electron pressure regulating valve |
| CN202659912U (en) * | 2012-06-22 | 2013-01-09 | 浙江春晖智能控制股份有限公司 | Electronic gas-liquid ratio adjusting valve for recycling oil and gases |
| CN203285598U (en) * | 2013-06-13 | 2013-11-13 | 无锡威孚汽车柴油系统有限公司 | Proportional flow valve for common rail pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593731A (en) * | 2017-01-22 | 2017-04-26 | 无锡威孚高科技集团股份有限公司 | Proportional flow valve for high pressure common rail pump of diesel engine |
| CN106762301A (en) * | 2017-01-22 | 2017-05-31 | 无锡威孚高科技集团股份有限公司 | The split type proportional flow control valve of diesel oil high voltage common rail pump |
| CN108266358A (en) * | 2018-01-26 | 2018-07-10 | 中航力源液压股份有限公司 | A kind of variable pump operation handle total travel control device and its composite control method |
| CN108266358B (en) * | 2018-01-26 | 2023-12-12 | 中航力源液压股份有限公司 | Full-stroke control device of variable pump operating handle and compound control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291515B (en) | 2015-03-25 |
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| ASS | Succession or assignment of patent right |
Owner name: WUXI WEIFU HIGH-TECH. GROUP CO., LTD. Effective date: 20130930 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130930 Address after: 214028 No. 8, Huashan Road, New District, Jiangsu, Wuxi Applicant after: Wuxi Weifu Automotive Diesel Systems Co., Ltd. Applicant after: Wuxi Weifu High-Technology Co., Ltd. Address before: 214028 No. 8, Huashan Road, New District, Jiangsu, Wuxi Applicant before: Wuxi Weifu Automotive Diesel Systems Co., Ltd. |
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Effective date of registration: 20180312 Address after: 214028 Wuxi New District, Jiangsu, Huashan Road, No. 5 Patentee after: Wuxi Weifu High-Technology Co., Ltd. Address before: 214028 No. 8, Huashan Road, New District, Jiangsu, Wuxi Co-patentee before: Wuxi Weifu High-Technology Co., Ltd. Patentee before: Wuxi Weifu Automotive Diesel Systems Co., Ltd. |
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| TR01 | Transfer of patent right |