CN103291515B - Proportional flow valve for common-rail pump - Google Patents
Proportional flow valve for common-rail pump Download PDFInfo
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- CN103291515B CN103291515B CN201310234817.0A CN201310234817A CN103291515B CN 103291515 B CN103291515 B CN 103291515B CN 201310234817 A CN201310234817 A CN 201310234817A CN 103291515 B CN103291515 B CN 103291515B
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- flow valve
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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 proportional flow valve for common-rail pump.
Background technology
Along with the increasingly stringent of Abgasgesetz and the day by day rare of the energy, the requirement of diesel fuel injection system is also improved constantly, common rail system is other fuel systems relatively, its pressure, distributive value, oil injection time, pre-spray and rear spray can accurately control, and its discharge and fuel economy have great improvement.In common rail system, the proportional flow control valve be installed in common rail pump plays the pressure regulation effect of common rail system, can accurately control the oil mass entering high-pressure oil pump, have very important impact to the performance of whole common rail system.But having some proportional flow control valves to be non-equilibrium valve, stability and the uniformity of valve are poor, cannot accomplish fine adjustment, and the accurate control for common rail system rail pressure is unfavorable, directly affects the fuel economy of diesel engine, dynamic property and emission level.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of structure is simple, pressure self-balancing, can effectively accurately control to enter the proportional flow valve for common-rail pump of the flow of common rail pump.
According to technical scheme provided by the invention, described proportional flow valve for common-rail pump, valve body is fixed with in the bottom of proportion electro-magnet, valve body offers metering orifice, axially installation slide opening is offered along it in valve body, slide opening is installed be communicated with metering orifice is selective, spring base is fixed with at the bottom inner portion installing slide opening, spool is slidably fitted with in installation slide opening above spring base, spool offers balance pipe, described spring base offers oil outlet, is provided with spring at spring base, top ends and the spool of spring offset.
The axis of described balance pipe and the axis of spool are set in parallel.Described balance pipe has two or more, and balance pipe 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, makes the impact that the performance of valve is not stressed, good stability; 2, performance curve of the present invention can fine adjustment, can ensure the uniformity of product; 3, the present invention is simple and reliable for structure, and debugging is convenient, and production technology is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
This proportional flow valve for common-rail pump, valve body 4 is fixed with in the bottom of proportion electro-magnet 5, valve body 4 offers metering orifice 4.1, axially installation slide opening is offered along it in valve body 4, slide opening is installed be communicated with metering orifice 4.1 is selective, spring base 1 is fixed with at the bottom inner portion installing slide opening, spool 3 is slidably fitted with in installation slide opening above spring base 1, spool 3 offers balance pipe 3.1, described spring base 1 offers oil outlet 1.1, be provided with spring 2 at spring base 1, top ends and the spool 3 of spring 2 offset.
The axis of described balance pipe 3.1 and the axis of spool 3 are set in parallel.Described balance pipe 3.1 has two or more, and balance pipe 3.1 is evenly distributed round the axis of spool 3.
Described valve body 4 is by interference fit press-in proportion electro-magnet 5.
The axis of described metering orifice 4.1 and the axis of valve body 4 are vertical setting.
In proportional flow valve for common-rail pump of the present invention, valve body 4 is by interference fit press-in proportion electro-magnet 5, and spool 3 and valve body 4 are a mating plate, and spool 3 can move up and down in valve body 4.Valve body 4 has metering orifice 4.1, fuel oil can enter from metering orifice 4.1, goes out from the oil outlet 1.1 of spring base 1.The athletic meeting of spool 3 in valve body 4 makes spool 3 cover the area of metering orifice 4.1, thus regulates the flow entering proportional flow control valve, spool 3 has balance pipe 3.1, can ensure that the pressure before and after spool 3 is equal.
Spring base 1 is pressed into the bottom inner portion of the installation slide opening of valve body 4 by interference fit, be provided with spring 2 between spring base 1 and spool 3.
Operation principle of the present invention is as follows:
The present invention is a kind of pressure self-balancing formula proportional flow control valve, push rod in the middle of proportion electro-magnet 5 can export the directly proportional electromagnetic force with electric current, be applied on spool 3 by push rod, spool 3 is simultaneously by the effect of spring 2, 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 electromagnetic force of proportion electro-magnet 5, spool 3 moves to corresponding equalization point, the athletic meeting of spool 3 covers the metering orifice 4.1 exit portion area of valve body 4, thus change the circulation area of the metering orifice 4.1 of valve body 4, play the effect of adjust flux, by adjusting the compression distance of spring base 1, just can ensure the uniformity between different valve.
Claims (5)
1. a proportional flow valve for common-rail pump, valve body (4) is fixed with in the bottom of proportion electro-magnet (5), it is characterized in that: on valve body (4), offer metering orifice (4.1), axially installation slide opening is offered along it in valve body (4), slide opening is installed be communicated with metering orifice (4.1) is selective, spring base (1) is fixed with at the bottom inner portion installing slide opening, spool (3) is slidably fitted with in the installation slide opening of spring base (1) top, spool (3) offers balance pipe (3.1), described spring base (1) offers oil outlet (1.1), spring (2) is provided with at spring base (1), top ends and the spool (3) of spring (2) offset.
2. proportional flow valve for common-rail pump as claimed in claim 1, is characterized in that: the axis of described balance pipe (3.1) and the axis of spool (3) are set in parallel.
3. proportional flow valve for common-rail pump as claimed in claim 2, it is characterized in that: described balance pipe (3.1) has two or more, and balance pipe (3.1) is evenly distributed round the axis of spool (3).
4. proportional flow valve for common-rail pump as claimed in claim 1, is characterized in that: described valve body (4) is pressed into proportion electro-magnet (5) by interference fit.
5. proportional flow valve for common-rail pump as claimed in claim 1, is characterized in that: the axis of described metering orifice (4.1) and the axis of valve body (4) are 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 CN103291515A (en) | 2013-09-11 |
| CN103291515B true CN103291515B (en) | 2015-03-25 |
Family
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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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
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|---|---|---|---|---|
| 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***有限公司 | Proportional flow valve for common rail pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4093696B2 (en) * | 1999-02-25 | 2008-06-04 | 株式会社日本自動車部品総合研究所 | Depressurization regulating valve for fuel injection device |
| DE10334616A1 (en) * | 2003-07-29 | 2005-02-17 | Robert Bosch Gmbh | Pressure control valve for storage fuel injection system |
-
2013
- 2013-06-13 CN CN201310234817.0A patent/CN103291515B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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***有限公司 | Proportional flow valve for common rail pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291515A (en) | 2013-09-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
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 |