CN103089603B - A kind of transverse-placing type electromagnetic control valve structure and its method of adjustment - Google Patents
A kind of transverse-placing type electromagnetic control valve structure and its method of adjustment Download PDFInfo
- Publication number
- CN103089603B CN103089603B CN201310010369.6A CN201310010369A CN103089603B CN 103089603 B CN103089603 B CN 103089603B CN 201310010369 A CN201310010369 A CN 201310010369A CN 103089603 B CN103089603 B CN 103089603B
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve element
- electric magnet
- control valve
- adjustment
- 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
Abstract
The invention discloses a kind of transverse-placing type electromagnetic control valve structure and its method of adjustment；Its structure includes valve seat（1）, for adjustment control spool stroke Traffic control system block（2）, electric magnet（3）, armature（4）, control valve element（5）, end-face seal ring（6）, electric magnet binding post（7）, housing screw（8）, groove sealing ring（9）, return spring（10）, adjust pad（11）, spring base（12）；Its method of adjustment includes controlling valve element（5）The method of adjustment of stroke, armature（4）With electric magnet（3）Between clearance adjustment method, return spring（10）The method of adjustment of pretightning force.The present invention is applied in diesel electric-controlled monoblock pump, have fast response time, sealing reliability good, easy to adjust the features such as.
Description
Technical field
The invention belongs to field of power machinery technology, for diesel electric-controlled monoblock pump and in particular to a kind of pressure-bearing type is electric
Magnetic control valve arrangement and its method of adjustment.
Background technology
Solenoid electric valve passes through the cut out of control valve and opens, and to control fuel feeding and the oil-break of electronically controlled unit pump, to be bavin
How the core parts of oil machine electronically controlled unit pump, realize quick response, high pressure sealing and the convenient adjustment of solenoid electric valve, be
Electromagnetic Control valve components and the emphasis of structure design.
Conventional electromagnetic control valve of electronic control unit pump includes electric magnet, armature, housing screw（2 kinds）, control valve element, valve seat,
Spring, spring base（2 kinds）, adjustment block, 10 parts such as the stifled, pressing plate of adjustment.This conventional structure have in design certain not
Foot：
First, spring, spring socket sleeve are contained on control valve element, not only increase the moving-mass of control valve, become raising
The unfavorable factor of control valve response speed, and initial tension of spring adjustment is inconvenient, the adjustment convenience of impact solenoid electric valve；
Second, control the return face of taking a seat of valve element close together with its high pressure sealing position, controlling valve element to close and beating
That opens takes a seat moment, causes to control the local deformation of valve element big, is unfavorable for the high pressure sealing of solenoid electric valve and its work of part
Make reliability；
3rd, adjustment is stifled to be assemblied in inside control valve, causes to control valve element Traffic control system inconvenient.
Content of the invention
The present invention is exactly to solve the problems, such as conventional electromagnetic control valve of electronic control unit pump, thus proposing a kind of electromagnetism
Ferrum is assemblied in the transverse-placing type electromagnetic control valve structure in valve seat, to reach in the application of diesel electric-controlled monoblock pump, response speed
Hurry up, purpose that sealing reliability is good, easy to adjust.
Technical scheme：
A kind of transverse-placing type electromagnetic control valve structure, controls Traffic control system block, the electricity of spool stroke including valve seat, for adjustment
Magnet, armature, control valve element, end-face seal ring, electric magnet binding post, housing screw, groove sealing ring, return spring, adjustment
Pad, spring base, wherein, electric magnet is circular or square structure；Armature is the circle supporting with electric magnet or square structure, and
It is provided with the hole reducing resistance；Valve element is controlled to be the hollow structure inside making the low pressure oil pocket connection of valve seat both sides；Periphery scribbles fixing
The electric magnet of glue, is press-fited with interference internal on the left of valve seat and is connected；Longitudinally fit through the electric magnet binding post of valve seat orifice, with electromagnetism
Ferrum connects；Mesopore inwall scribbles the armature of retaining rubber, is connected or laser welding connection with controlling valve element left part interference to press-fit, composition
The two assembly；Successively pass through the two assembly of electric magnet endoporus, valve seat cross-drilled hole, with the connected mode of horizontal insertion and valve seat
Connect；End-face seal ring is located in groove on the left of valve seat；Traffic control system block and valve seat left hand external, fixing even by housing screw
Connect；Groove sealing ring is located in spring base groove with being set with connected mode, and return spring is located at spring base to be set with connected mode
On, groove sealing ring, return spring, spring base three's assembly, it is fixedly connected with the right side of valve seat by housing screw；In valve seat
It is provided with back oil road, oil input channel, oil duct, oil storage annular groove；It is provided with plunger in valve seat；It is provided with oil duct in Traffic control system block；Control valve element
Inside it is provided with mesopore, oilhole；When electric magnet is in off-position, gap is located at and controls between valve element and valve seat；Control valve element cone
The high pressure sealing diameter in face is identical with the numerical value of right side guide cylinder diameter；Control a diameter of 5～10mm of valve element, stroke is
0.15～0.2mm；Electromagnetic attraction >=180N that electric magnet and armature produce in ultimate range；Armature and the interference controlling valve element
Measure as 0.005～0.01mm, retaining rubber is happy safe 609 glue；Electric magnet is 0.005～0.01mm with the magnitude of interference of valve seat, fixing
Glue is happy safe 609 glue；The gap controlling valve element cylindrical and the guiding circumference of valve seat between is 0.002～0.004mm；Control valve element
Cylindrical gap and electric magnet endoporus between is 0.02～0.04mm；Armature material is electromagnetic pure iron DT4C, controls valve core material
For high-speed tool steel W6Mo5Cr4V2, seat material is 40CrMnMo, and other parts material is conventional material；Valve element is controlled to be located at
In valve seat, the two cone shape high pressure sealing position is located in the middle of two cylindrical pilot positions, controls valve element high pressure sealing position
Frustoconical bevel angle be 138 ° ± 0.5 °, the frustoconical bevel angle at valve seat high pressure sealing position is 140 ° ± 0.5 °.
The method of adjustment of this transverse-placing type electromagnetic control valve structure, including the method for adjustment, armature and the electricity that control spool stroke
Clearance adjustment method between Magnet, the method for adjustment of return spring pretightning force, concrete grammar is as follows, and a. controls spool stroke
Method of adjustment：After controlling valve element to be close on valve seat, measurement valve seat left side to control valve element left side, apart from L1, measures
The thickness L2 of Traffic control system block, controls the stroke of valve element to be equal to L1-L2, by adjusting to size L2 of Traffic control system block
Whole, valve element Traffic control system will be controlled in scope of design；B. the clearance adjustment method between armature and electric magnet：Valve element will be controlled
After being close on valve seat, measurement control positioning table terrace on valve element position to valve seat end face apart from L3, measurement electric magnet
Thickness L4, the gap between armature and electric magnet is equal to L3-L4, by being adjusted to the thickness L4 of electric magnet,
Gap between armature and electric magnet is adjusted in scope of design；C. the method for adjustment of return spring pretightning force：By control valve
Spring base on the right side of core and pad adjustment, adjust the pretightning force of return spring by selecting the different-thickness of adjust pad.
Beneficial effects of the present invention：
The present invention is applied in diesel electric-controlled monoblock pump, has fast response time, sealing reliability good, easy to adjust etc.
Feature, specifically includes following beneficial effect：
1. control valve adopts high and low pressure hydraulic balance structure, reduces flowed friction；Spring and spring base are located at and control valve element
Outward, reduce movement parts inertia mass, comprehensive raising control valve response speed；There is less movement parts inertia mass, identical
Dynamic response time require under, reduce requirement to electric magnet；
2. adjust stifled is placed in outside control valve element with spring base, make the adjustment of control stroke of valve and initial tension of spring more square
Just, beneficial to the adjustment of electronically controlled unit pump fuel delivery uniformity；
3. valve land face is distant with high pressure sealing position, and structure is more reasonable, can reduce control valve and close
With the local deformation in opening procedure, improve reliability；
4. valve core structure is simple, and part section change is little, can effectively reduce part difficulty of processing；
5. electric magnet is built in valve seat, by flow diesel oil electric magnet is cooled, beneficial to improve electric magnet can
By property.
Brief description
Fig. 1 is the structural representation of the present invention, is that the transverse-placing type electromagnetic control valve structure of diesel electric-controlled monoblock pump is illustrated
Figure；
Fig. 2 is the gap adjustment schematic diagram controlling between spool stroke, armature and electric magnet；
Fig. 3 is the oil-filled route schematic diagram of low-voltage fuel；
Fig. 4 is the fuel feeding route schematic diagram of high pressure fuel；
Fig. 5 is the oil-break route schematic diagram of high pressure fuel；
The each labelling of accompanying drawing represents respectively：
1- valve seat
2- Traffic control system block
3- electric magnet
4- armature
5- controls valve element
6- end-face seal ring
7- electric magnet binding post
8- housing screw
9- groove sealing ring
10- return spring
11- adjust pad
12- spring base
13- plunger（In valve seat oil duct）
14- back oil road（Valve seat）
15- oil input channel（Valve seat）
16- oil duct（Valve seat）
17- oil duct（Traffic control system block）
18- mesopore（Control valve element）
19- oilhole（Control valve element）
20- gap（Control valve element and valve base chamber）
21- oil storage annular groove（Valve seat）
Specific embodiment
Below in conjunction with the accompanying drawings, the workflow of the present invention is further described.
A kind of transverse-placing type electromagnetic control valve structure, controls Traffic control system block, the electricity of spool stroke including valve seat, for adjustment
Magnet, armature, control valve element, end-face seal ring, electric magnet binding post, housing screw, groove sealing ring, return spring, adjustment
Pad, spring base, wherein, electric magnet is circular or square structure；Armature is the circle supporting with electric magnet or square structure, and
It is provided with the hole reducing resistance；Valve element is controlled to be the hollow structure inside making the low pressure oil pocket connection of valve seat both sides；Periphery scribbles fixing
The electric magnet of glue, is press-fited with interference internal on the left of valve seat and is connected；Longitudinally fit through the electric magnet binding post of valve seat orifice, with electromagnetism
Ferrum connects；Mesopore inwall scribbles the armature of retaining rubber, is connected or laser welding connection with controlling valve element left part interference to press-fit, composition
The two assembly；Successively pass through the two assembly of electric magnet endoporus, valve seat cross-drilled hole, with the connected mode of horizontal insertion and valve seat
Connect；End-face seal ring is located in groove on the left of valve seat；Traffic control system block and valve seat left hand external, fixing even by housing screw
Connect；Groove sealing ring is located in spring base groove with being set with connected mode, and return spring is located at spring base to be set with connected mode
On, groove sealing ring, return spring, spring base three's assembly, it is fixedly connected with the right side of valve seat by housing screw；In valve seat
It is provided with back oil road, oil input channel, oil duct, oil storage annular groove；It is provided with plunger in valve seat；It is provided with oil duct in Traffic control system block；Control valve element
Inside it is provided with mesopore, oilhole；When electric magnet is in off-position, gap is located at and controls between valve element and valve seat；Control valve element cone
The high pressure sealing diameter in face is identical with the numerical value of right side guide cylinder diameter；Control a diameter of 5～10mm of valve element, stroke is
0.15～0.2mm；Electromagnetic attraction >=180N that electric magnet and armature produce in ultimate range；Armature and the interference controlling valve element
Measure as 0.005～0.01mm, retaining rubber is happy safe 609 glue；Electric magnet is 0.005～0.01mm with the magnitude of interference of valve seat, fixing
Glue is happy safe 609 glue；The gap controlling valve element cylindrical and the guiding circumference of valve seat between is 0.002～0.004mm；Control valve element
Cylindrical gap and electric magnet endoporus between is 0.02～0.04mm；Armature material is electromagnetic pure iron DT4C, controls valve core material
For high-speed tool steel W6Mo5Cr4V2, seat material is 40CrMnMo, and other parts material is conventional material；Valve element is controlled to be located at
In valve seat, the two cone shape high pressure sealing position is located in the middle of two cylindrical pilot positions, controls valve element high pressure sealing position
Frustoconical bevel angle be 138 ° ± 0.5 °, the frustoconical bevel angle at valve seat high pressure sealing position is 140 ° ± 0.5 °.This pressure-bearing type electromagnetism control
The method of adjustment of valve arrangement processed, including the clearance adjustment method controlling between the method for adjustment of spool stroke, armature and electric magnet,
The method of adjustment of return spring pretightning force, concrete grammar is as follows, and a. controls the method for adjustment of spool stroke：It is close to controlling valve element
After on valve seat, measurement valve seat left side to control valve element left side, apart from L1, measures the thickness L2 of Traffic control system block,
The stroke controlling valve element is equal to L1-L2, by being adjusted to size L2 of Traffic control system block, valve element Traffic control system will be controlled to exist
In scope of design；B. the clearance adjustment method between armature and electric magnet：After controlling valve element to be close on valve seat, measurement controls
On valve element positioning table terrace position to valve seat end face apart from L3, measure thickness L4, armature and the electric magnet of electric magnet
Between gap be equal to L3-L4, by being adjusted to the thickness L4 of electric magnet, by the gap between armature and electric magnet
Adjustment is in scope of design；C. the method for adjustment of return spring pretightning force：By the spring base controlling on the right side of valve element and pad adjustment,
Adjust the pretightning force of return spring by selecting the different-thickness of adjust pad.
The Oil feeding process of fuel admission valve seat oil pocket：When electric magnet is in off-position, control valve element in return spring
It is close under effect in stroke adjustment block, control valve element to form gap with valve seat, there is from electromotor the low pressure of certain pressure
The oil input channel through valve seat for the fuel oil, the oil duct of Traffic control system block, the mesopore controlling valve element, the oilhole controlling valve element, the oil storage of valve seat
Annular groove and the oil duct controlling valve element and the gap entrance valve seat of valve seat, Fuel Remained passes through to control the mesopore of valve element through valve seat
Back oil road flows back to fuel tank, and at this moment fuel oil completes to enter the Oil feeding process of valve seat oil pocket；
The pressurization of fuel oil and Fuel injection system：Electric magnet is passed into electric current, is in "on" position, and electric magnet is produced with armature
Electromagnetic attraction, overcomes the spring force of return spring, valve element will be controlled to be close on valve seat, gap is eliminated, in the oil duct of valve seat
Fuel oil isolated with low-voltage fuel, the fuel oil in the oil duct of valve seat is pressurized under ram compression, and the fuel oil after pressurization is through valve
The outlet of the oil duct of seat enters high-pressure oil pipe, completes pressurization and the Fuel injection system of fuel oil；
The oil-break process of fuel oil：When the electric current being passed through electric magnet is cut off, electric magnet is in off-position, electromagnetism again
Between ferrum and armature, electromagnetic attraction disappears, and controls valve element to be again close in stroke adjustment block under the spring-force driven dual of return spring
On, form the gap controlling between valve element and valve seat again, the oil duct through valve seat for the high pressure fuel, gap, oil storage annular groove, control
The oilhole of valve element and mesopore, valve seat back oil road flow back to fuel tank, complete the oil-break process of fuel oil.
Above content is to further describe it is impossible to assert with reference to specific preferred implementation is made for the present invention
Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of present inventive concept, some simple deduction or replace can also be made, all should be considered as belonging to the present invention's
Protection domain.
Claims (2)
1. a kind of transverse-placing type electromagnetic control valve structure, including valve seat（1）, for adjustment control spool stroke Traffic control system block
（2）, electric magnet（3）, armature（4）, control valve element（5）, end-face seal ring（6）, electric magnet binding post（7）, housing screw（8）、
Groove sealing ring（9）, return spring（10）, adjust pad（11）, spring base（12）It is characterised in that electric magnet（3）For circle
Or square structure；Armature（4）It is and electric magnet（3）Supporting circle or square structure, and it is provided with the hole reducing resistance；Control valve
Core（5）For making valve seat（1）The hollow structure inside of both sides low pressure oil pocket connection；
Periphery scribbles the electric magnet of retaining rubber（3）, with valve seat（1）The internal interference in left side press-fits connection；Longitudinally fit through valve seat
（1）The electric magnet binding post in hole（7）, with electric magnet（3）Connect；
Mesopore inwall scribbles the armature of retaining rubber（4）, with control valve element（5）Left part interference press-fits connection or laser welding connects,
The two assembly of composition；Successively pass through electric magnet（3）Endoporus, valve seat（1）The two assembly of cross-drilled hole, with the connection of horizontal insertion
Mode and valve seat（1）Connect；
End-face seal ring（6）Positioned at valve seat（1）In the groove of left side；Traffic control system block（2）And valve seat（1）Left hand external, by compression
Screw（8）It is fixedly connected；Groove sealing ring（9）It is located at spring base to be set with connected mode（12）In groove, return spring（10）
It is located at spring base to be set with connected mode（12）On, groove sealing ring（9）, return spring（10）, spring base（12）Three combines
Body, by housing screw（8）With valve seat（1）Right side is fixedly connected；
Valve seat（1）Inside it is provided with back oil road（14）, oil input channel（15）, oil duct（16）, oil storage annular groove（21）；Oil duct（16）Inside it is provided with post
Plug（13）；Traffic control system block（2）Inside it is provided with oil duct（17）；Control valve element（5）Inside it is provided with mesopore（18）, oilhole（19）；Work as electromagnetism
Ferrum（3）When being in off-position, gap（20）It is located at and control valve element（5）With valve seat（1）Between；
Control valve element（5）The high pressure sealing diameter of the conical surface is identical with the numerical value of right side guide cylinder diameter；Control valve element（5）Straight
Footpath is 5～10mm, and stroke is 0.15～0.2mm；Electric magnet（3）With armature（4）The electromagnetic attraction producing in ultimate range >=
180N；
Armature（4）With control valve element（5）The magnitude of interference be 0.005～0.01mm, retaining rubber is happy safe 609 glue；Electric magnet（3）With
Valve seat（1）The magnitude of interference be 0.005～0.01mm, retaining rubber is happy safe 609 glue；Control valve element（5）Cylindrical and valve seat（1）Lead
It is 0.002～0.004mm to the gap between circumference；Control valve element（5）Cylindrical and electric magnet（3）Gap between endoporus is
0.02～0.04mm；
Armature（4）Material is electromagnetic pure iron DT4C, controls valve element（5）Material is high-speed tool steel W6Mo5Cr4V2, valve seat（1）Material
Expect for 40CrMnMo；
Control valve element（5）Positioned at valve seat（1）Interior, the two cone shape high pressure sealing position is located in two cylindrical pilot positions
Between, control valve element（5）The frustoconical bevel angle at high pressure sealing position is 138 ° ± 0.5 °, valve seat（1）The face angle at high pressure sealing position
Spend for 140 ° ± 0.5 °.
2. the method for adjustment of transverse-placing type electromagnetic control valve structure as claimed in claim 1 is it is characterised in that include controlling valve element
（5）The method of adjustment of stroke, armature（4）With electric magnet（3）Between clearance adjustment method, return spring（10）The tune of pretightning force
Adjusting method, concrete grammar is as follows,
A. control valve element（5）The method of adjustment of stroke：Valve element will be controlled（5）It is close in valve seat（1）After upper, measure valve seat（1）Left
End face is to controlling valve element（5）Left side apart from L1, measure Traffic control system block（2）Thickness L2, control valve element stroke
Equal to L1-L2, by Traffic control system block（2）Size L2 be adjusted, valve element Traffic control system will be controlled in scope of design；
B. armature（4）With electric magnet（3）Between clearance adjustment method：Valve element will be controlled（5）It is close in valve seat（1）After upper, survey
Control valve core（5）Upper positioning table terrace is to valve seat（1）Interior positioning end face apart from L3, measure electric magnet（3）Thickness
L4, the gap between armature and electric magnet is equal to L3-L4, by electric magnet（3）Thickness L4 be adjusted, by armature
Gap and electric magnet between adjusts in scope of design；
C. return spring（10）The method of adjustment of pretightning force：By control valve element（5）The spring base on right side（12）And pad（11）Adjust
Whole, by selecting adjust pad（11）Different-thickness adjusting return spring（10）Pretightning force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010369.6A CN103089603B (en) | 2013-01-11 | 2013-01-11 | A kind of transverse-placing type electromagnetic control valve structure and its method of adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010369.6A CN103089603B (en) | 2013-01-11 | 2013-01-11 | A kind of transverse-placing type electromagnetic control valve structure and its method of adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089603A CN103089603A (en) | 2013-05-08 |
| CN103089603B true CN103089603B (en) | 2017-03-01 |
Family
ID=48202593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310010369.6A Active CN103089603B (en) | 2013-01-11 | 2013-01-11 | A kind of transverse-placing type electromagnetic control valve structure and its method of adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089603B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214032A (en) * | 2014-04-09 | 2014-12-17 | 中国北方发动机研究所 | Longitudinally-placed normally-closed type electromagnetic control valve structure |
| CN107143448A (en) * | 2017-06-30 | 2017-09-08 | 南岳电控（衡阳）工业技术股份有限公司 | Miniature air-cooling single cylinder diesel engine fuel oil sprays single cylinder electric control pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040420A (en) * | 1989-05-19 | 1990-03-14 | 刘长年 | Multifunctional floating pressure control valve |
| CN2237157Y (en) * | 1995-11-07 | 1996-10-09 | 鞍山市盛尧电子仪器仪表有限公司 | Spring pneumatic electromagnetic valve |
| CN2714829Y (en) * | 2004-06-14 | 2005-08-03 | 上海云飞自动化设备有限公司 | Split electric control monoblock fuel-injection pump for diesel engine |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2997996B2 (en) * | 1995-08-31 | 2000-01-11 | 日本コントロール工業株式会社 | Electromagnetic pump |
| JP2000274326A (en) * | 1999-03-23 | 2000-10-03 | Nachi Fujikoshi Corp | High pressure plunger pump |
-
2013
- 2013-01-11 CN CN201310010369.6A patent/CN103089603B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040420A (en) * | 1989-05-19 | 1990-03-14 | 刘长年 | Multifunctional floating pressure control valve |
| CN2237157Y (en) * | 1995-11-07 | 1996-10-09 | 鞍山市盛尧电子仪器仪表有限公司 | Spring pneumatic electromagnetic valve |
| CN2714829Y (en) * | 2004-06-14 | 2005-08-03 | 上海云飞自动化设备有限公司 | Split electric control monoblock fuel-injection pump for diesel engine |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103089603A (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104314725B (en) | Mesopore pressure accumulation without static leakage fuel injector | |
| CN101338716B (en) | High pressure co-rail electric control fuel injector | |
| CN204200442U (en) | A kind of mesopore pressure accumulation is without static leakage oil sprayer | |
| CN103089603B (en) | A kind of transverse-placing type electromagnetic control valve structure and its method of adjustment | |
| CN202182074U (en) | High-flow jet pipe type secondary electro-hydraulic servo valve | |
| CN102213165B (en) | High pressure common rail electronic control fuel injector | |
| EP2496823A1 (en) | Fuel injector | |
| CN105952953B (en) | A kind of response time adjustable pilot solenoid valve structure | |
| CN103758670A (en) | High-flow inlet metering valve for high-pressure common-rail variable displacement pump | |
| CN104358644B (en) | Fuel injector high-speed electromagnetic valve | |
| CN206329791U (en) | Pressure compensation electricity ratio seat valve | |
| CN105351115B (en) | No leakage voltage control standard fuel gas ejecting device | |
| CN105888904B (en) | Non-crystaline amorphous metal composite iron core electromagnetic control oil sprayer | |
| CN203508981U (en) | Pressurizing-type energy accumulator | |
| CN204130293U (en) | The core structure of vehicle high speed electromagnet | |
| CN106121890B (en) | Rail pressure regulating valve for common-rail system | |
| CN106641386A (en) | Pressure compensation electric proportional seat valve | |
| CN201706041U (en) | Two-position and three-way high flow rate high-speed valve | |
| CN202203099U (en) | Electric hydraulic control high pressure large flux double-pump afflux and double-selection diverter valve | |
| CN207316138U (en) | A kind of novel plug-in assembled formula two position, three-way electromagnetic change valve | |
| CN106762293A (en) | A kind of two-way oil-feed without static leakage needle-valve electric-controlled fuel injector long | |
| CN206845360U (en) | Gasoline electric-controlled fuel injector | |
| CN205243698U (en) | Electrically controlled monoblock pump | |
| CN206816921U (en) | A kind of outer guiding fuel gas injection valve of through type mixed admission | |
| CN103590949A (en) | High-pressure common-rail electrically-controlled oil sprayer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |