CN106593731A - Proportional flow valve for high pressure common rail pump of diesel engine - Google Patents
Proportional flow valve for high pressure common rail pump of diesel engine Download PDFInfo
- Publication number
- CN106593731A CN106593731A CN201710046958.8A CN201710046958A CN106593731A CN 106593731 A CN106593731 A CN 106593731A CN 201710046958 A CN201710046958 A CN 201710046958A CN 106593731 A CN106593731 A CN 106593731A
- Authority
- CN
- China
- Prior art keywords
- pole shoe
- valve element
- diesel engine
- housing
- proportional flow
- 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- Withdrawn
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
Abstract
The invention relates to a proportional flow valve for a high pressure common rail pump of a diesel engine. A plug-in is mounted on a shell; a pole shoe is mounted in the lower end part of the shell; a coil holder is mounted between the shell and the pole shoe; a coil is mounted in the coil holder; a pole shoe inlet is formed in the pole shoe; a pole shoe axle hole is formed in the pole shoe along the axis; a spring seat is fixed in the lower end part of the pole shoe axle hole; a spring is mounted on the spring seat; a valve element is mounted in the pole shoe axle hole above the spring seat in a sliding manner; a flow hole is formed in the side wall of the valve element; a first sliding bearing is fixed in the upper end part of the pole shoe axle hole; a limiting block is arranged on the upper end face of the pole shoe; a second sliding bearing is fixed in the upper end part of the shell; armature shafts are mounted in the second sliding bearing and the first sliding bearing in a sliding manner; and armatures are fixed on the armature shafts. The proportional flow valve has the advantages of simple structure, using reliability, lower production cost and the like.
Description
Technical field
The present invention relates to a kind of proportional flow control valve, present invention relates especially to a kind of diesel engine high-pressure co-rail pump ratio stream
Amount valve.
Background technology
Because performance requirement is strict, with high content of technology, design difficulty it is big, plus reason, the existing rank such as home made materials dispersiveness is big
Section Diesel engine high-pressure common rail oil supply system fuel quantitative proportional flow control valve relies primarily on the import in Germany, Japan, the U.S.
Product.Using the quantitative ratio flow valve of external import, although can meet the requirement in performance, but cost is very high, price,
Lead Time etc. is answered business to be restricted by the external supply of material, and the property right that is ignorant is controlled by overseas enterprise forever, is unfavorable for development of national work
Industry.Therefore it is badly in need of production domesticization with reduces cost, breaks away from the control of international vendor.On the other hand, with China's Diesel engine
The development of high-pressure common rail oil supply system proprietary technology with it is ripe, be also badly in need of it is matching therewith, based on the various of indigenous technology
The made domestic fuel quantitative ratio flow valve of model, with meet the technological progress of China's Diesel engine high-pressure common rail oil supply system with
The needs of practicality popularization.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of simple structure, can reduce production
The diesel engine high-pressure co-rail pump proportional flow control valve of cost.
According to the technical scheme that the present invention is provided, the diesel engine high-pressure co-rail pump proportional flow control valve, pacify on housing
Equipped with plug-in unit, pole shoe is installed inside the bottom of housing, coil holder is installed between housing and pole shoe, in coil holder
Coil is installed, pole shoe inlet hole is offered on pole shoe, pole shoe axis hole is offered along its axis in pole shoe, in pole shoe axle
Spring base is fixed with inside the bottom in hole, spring is installed on spring base, it is sliding in pole shoe axis hole above spring base
Dynamic to be provided with valve element, upper end and the valve element of spring offset, and metering orifice are offered on the side wall of valve element, in the upper of pole shoe axis hole
Inner end portion is fixed with the first sliding bearing, and in the upper surface of pole shoe limited block is provided with, and is fixed with inside the upper end of housing
Second sliding bearing, in the second sliding bearing and the first sliding bearing armature shaft is slidably fitted with, and is fixed with armature shaft
Armature, the bottom of armature shaft offsets with the upper surface of valve element.
Balance pipe is offered on the upper surface of the valve element.
Guide pin bushing is installed in housing, described armature is installed in guide pin bushing, guide pin bushing coordinates with armature in gap.
The upper end of the pole shoe is wedge structure.
The spring base is symmetrical squashed structure.
The present invention has the advantages that simple structure, uses reliable, production cost relatively low.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of spring base in the present invention.
Fig. 3 is shell structure schematic diagram in the present invention.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
The diesel engine high-pressure co-rail pump proportional flow control valve, is provided with plug-in unit 6, in the bottom of housing 1 on housing 1
Portion is provided with pole shoe 9, and coil holder 40 is provided between housing 1 and pole shoe 9, coil 4 is provided with coil holder 40, in pole shoe
Pole shoe inlet hole 9.1 is offered on 9, pole shoe axis hole 9.2 is offered along its axis in pole shoe 9, under pole shoe axis hole 9.2
Inner end portion is fixed with spring base 15, and spring 14 is provided with spring base 15, in the top of spring base 15 in pole shoe axis hole 9.2
Valve element 10 is inside slidably fitted with, upper end and the valve element 10 of spring 14 offset, and on the side wall of valve element 10 metering orifice is offered
10.1, the first sliding bearing 2 is fixed with inside the upper end of pole shoe axis hole 9.2, limited block 8 is provided with the upper surface of pole shoe 9,
The second sliding bearing 20 is fixed with inside the upper end of housing 1, is slided in the second sliding bearing 20 and the first sliding bearing 2
Armature shaft 70 is installed, armature 7 is fixed with armature shaft 70, bottom and the upper surface of valve element 10 of armature shaft 70 offset.
Balance pipe 10.2 is offered on the upper surface of the valve element 10.
Guide pin bushing 3 is installed in housing 1, described armature 7 is installed in guide pin bushing 3, guide pin bushing 3 is matched somebody with somebody with armature 7 in gap
Close.
The spring base 15 is symmetrical squashed structure.
Guide pin bushing 3, the second sliding bearing 20 are housed in housing 1, coil holder 40 are provided with guide pin bushing 3 and housing 1, in coil holder 40
Coil 4 is inside installed, and O-ring seal 5 is provided with the one end of coil 4 and the contact surface of housing 1；6 plug-in units assemble coil by housing 1
Encapsulated formation is molded after 4, it is reliably connected with external control circuit；Armature shaft 70 is provided with inside housing 1, in armature shaft 70
On be fixed with armature 7, one end is provided with limited block 8；Pole shoe 9 is connected with housing 1, and pole shoe 9 is provided with the first sliding bearing 2；Rank
The second sliding bearing 20 that one end of iron axle 70 is placed in housing 1, the first sliding bearing 2 that the other end is placed on pole shoe 9, two ends
Sliding bearing provides the direction of the motion of armature shaft 70；Pole shoe inlet hole 9.1 is offered on pole shoe 9, on pole shoe inlet hole 9.1
The second sealing ring 12 is installed on the pole shoe 9 of side, the 3rd sealing ring 13 is installed on the pole shoe 9 below pole shoe inlet hole 9.1,
First sealing ring 11 is installed on the pole shoe 9 of the position of coil holder 40, between guide pin bushing 3, coil holder 40 and housing 1 the 4th is provided with
Sealing ring 5, is provided with valve element 10 in pole shoe 9, and pole shoe 9 provides the passage of the smooth slip of valve element 10；Spring is provided with valve element 10
14, spring 14 provides the restoring force of the motion of valve element 10, and the other end of spring 14 is fixed by spring base 15.
Guide pin bushing 3 is provided with housing 1, air-gap reluctance is reduced, output electromagnetic force is improve；
Pole shoe 9 adopts wedge angle, is formed trapezoidal every tape, it is ensured that output electromagnetic force reaches good horizontal nature；Further
Pole shoe 9 adopts through-hole structure, i.e., offer pole shoe axis hole 9.2 along its axis in pole shoe 9, improves mesopore machining accuracy；Pole
The top of boots 9 is provided with the limited block 8 of non-magnet material, the stroke range of effective control armature 7；Without balance pipe on armature 7, use
Gap between armature 7 and guide pin bushing 3 carries out oil extraction, it is ensured that fluid pressure balance suffered by the upper and lower side of armature 7；
Valve element 10 is that two-stage hole is adopted in the hollow cylinder of one end closing, cylinder body, reduces spring 14 and rubs with the inwall of valve element 10
Wipe；Metering orifice 10.1 is provided with valve element 10；Two ends are oriented to the first sliding axle that low-friction coefficient wearing layer is sintered using inner surface
2 and second sliding bearing 20 are held, its coefficient of friction with the contact surface of armature shaft 70 is reduced, movement parts abrasion is reduced, is improve
Durable reliability；Oil outlet 15.1 is provided with spring base 15, and spring base 15 adopts symmetrical squashed structure, squashed structure increase to go out
The fuel flow communication area of oilhole 15.1；The upper side of housing 1 is provided with symmetrical four balance pipe 1.1, housing during balance injection mo(u)lding
Cavity fluid pressure.
Control electric current is exported to after coil 4, and armature 7 can be exported and the directly proportional electromagnetic force of electric current, by armature shaft
70 are applied on valve element 10, and valve element 10 is acted on by flow valve spring 14 simultaneously, and electromagnetic force and spring force balance valve element 10
Some position, when the electric current of coil 4 is changed, the electromagnetic force of armature 7 accordingly changes, and valve element 10 moves to new balance position
Put, the athletic meeting of valve element 10 changes the masked area of pole shoe 9 and the metering orifice of valve element 10, so as to change the circulation of the metering orifice of valve element 10
Area, plays a part of to adjust flow.
Claims (5)
1. a kind of diesel engine high-pressure co-rail pump proportional flow control valve, including it is characterized in that：In housing（1）On plug-in unit is installed
（6）, in housing（1）Bottom inside pole shoe is installed（9）, in housing（1）With pole shoe（9）Between coil holder is installed
（40）, in coil holder（40）Coil is inside installed（4）, in pole shoe（9）On offer pole shoe inlet hole（9.1）, in pole shoe（9）It is interior
Pole shoe axis hole is offered along its axis（9.2）, in pole shoe axis hole（9.2）Bottom inside be fixed with spring base（15）, bullet
Spring abutment（15）On be provided with oil outlet, in spring base（15）On spring is installed（14）, in spring base（15）The pole shoe axis hole of top
（9.2）Inside it is slidably fitted with valve element（10）, spring（14）Upper end and valve element（10）Offset, in valve element（10）Side wall on open
It is provided with metering orifice（10.1）, in pole shoe axis hole（9.2）Upper end inside be fixed with the first sliding bearing（2）, in pole shoe（9）'s
Upper surface is provided with limited block（8）, in housing（1）Upper end inside be fixed with the second sliding bearing（20）, in the second sliding axle
Hold（20）With the first sliding bearing（2）Inside it is slidably fitted with armature shaft（70）, in armature shaft（70）On be fixed with armature（7）, rank
Iron axle（70）Bottom and valve element（10）Upper surface offset.
2. diesel engine high-pressure co-rail pump proportional flow control valve as claimed in claim 1, is characterized in that：In the valve element（10）'s
Balance pipe is offered on upper surface（10.2）.
3. diesel engine high-pressure co-rail pump proportional flow control valve as claimed in claim 1, is characterized in that：In housing（1）Interior installation
There is guide pin bushing（3）, in guide pin bushing（3）Described armature is inside installed（7）, guide pin bushing（3）With armature（7）Coordinate in gap.
4. diesel engine high-pressure co-rail pump proportional flow control valve as claimed in claim 1, is characterized in that：The pole shoe（9）It is upper
End is wedge structure.
5. diesel engine high-pressure co-rail pump proportional flow control valve as claimed in claim 1, is characterized in that：The spring base（15）For
Symmetrical squashed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046958.8A CN106593731A (en) | 2017-01-22 | 2017-01-22 | Proportional flow valve for high pressure common rail pump of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046958.8A CN106593731A (en) | 2017-01-22 | 2017-01-22 | Proportional flow valve for high pressure common rail pump of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106593731A true CN106593731A (en) | 2017-04-26 |
Family
ID=58585192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710046958.8A Withdrawn CN106593731A (en) | 2017-01-22 | 2017-01-22 | Proportional flow valve for high pressure common rail pump of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593731A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292454A (en) * | 1999-07-02 | 2001-04-25 | 艾拉西斯·西斯特玛·里瑟卡·菲亚特·耐尔·麦兹奥吉奥尔诺有限公司 | Equipment for regulating transfer pressure of pump providing fuel for internal combustion engine |
| CN103291515A (en) * | 2013-06-13 | 2013-09-11 | 无锡威孚汽车柴油系统有限公司 | Proportional flow valve for common-rail pump |
| CN203532130U (en) * | 2013-09-30 | 2014-04-09 | 杜国红 | Metering valve for engine common rail fuel system |
| CN203685443U (en) * | 2014-02-07 | 2014-07-02 | 无锡威孚汽车柴油系统有限公司 | Split proportional magnetic valve for common rail pump |
| WO2015043637A1 (en) * | 2013-09-26 | 2015-04-02 | Robert Bosch Gmbh | Metering unit |
| WO2016055269A1 (en) * | 2014-10-07 | 2016-04-14 | Robert Bosch Gmbh | Proportional valve that can be actuated electromagnetically |
| CN206439135U (en) * | 2017-01-22 | 2017-08-25 | 无锡威孚高科技集团股份有限公司 | Diesel engine high-pressure co-rail pump proportional flow control valve |
-
2017
- 2017-01-22 CN CN201710046958.8A patent/CN106593731A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292454A (en) * | 1999-07-02 | 2001-04-25 | 艾拉西斯·西斯特玛·里瑟卡·菲亚特·耐尔·麦兹奥吉奥尔诺有限公司 | Equipment for regulating transfer pressure of pump providing fuel for internal combustion engine |
| CN103291515A (en) * | 2013-06-13 | 2013-09-11 | 无锡威孚汽车柴油系统有限公司 | Proportional flow valve for common-rail pump |
| WO2015043637A1 (en) * | 2013-09-26 | 2015-04-02 | Robert Bosch Gmbh | Metering unit |
| CN203532130U (en) * | 2013-09-30 | 2014-04-09 | 杜国红 | Metering valve for engine common rail fuel system |
| CN203685443U (en) * | 2014-02-07 | 2014-07-02 | 无锡威孚汽车柴油系统有限公司 | Split proportional magnetic valve for common rail pump |
| WO2016055269A1 (en) * | 2014-10-07 | 2016-04-14 | Robert Bosch Gmbh | Proportional valve that can be actuated electromagnetically |
| CN206439135U (en) * | 2017-01-22 | 2017-08-25 | 无锡威孚高科技集团股份有限公司 | Diesel engine high-pressure co-rail pump proportional flow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170426 |
|
| WW01 | Invention patent application withdrawn after publication |