CN106246900A - A kind of automatic gear-box oil pressure electromagnetic valve for adjusting - Google Patents
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting Download PDFInfo
- Publication number
- CN106246900A CN106246900A CN201610758977.9A CN201610758977A CN106246900A CN 106246900 A CN106246900 A CN 106246900A CN 201610758977 A CN201610758977 A CN 201610758977A CN 106246900 A CN106246900 A CN 106246900A
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- Prior art keywords
- mouth
- electromagnetic valve
- oil pressure
- adjusting
- automatic gear
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- 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.)
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Classifications
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
- F16H61/0265—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
- F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting disclosed by the invention, include valve body and electromagnet assembly, radially P mouth is offered on valve body, A mouth is axially offered outside valve body ground, it was provided with hydraulic fluid port between A mouth and P mouth, this is crossed and is provided with valve plug on hydraulic fluid port, and valve plug is connected with the steel ball being arranged at inside P mouth；Electromagnet assembly includes the dynamic iron core at coil block and coil block center, and the center of dynamic iron core is fixed with push rod, and this push rod front end is stretched in the centre bore of copper seat, is provided with a thimble in centre bore, and thimble matches with described steel ball.It is an advantage of the current invention that: rational in infrastructure, push rod and thimble use separate type structure, it is possible to shorten the Len req of push rod, reduce the difficulty of processing of push rod, reduce production cost；It also avoid the assembling difficulty how long push rod causes because of length, the shortcoming that service life is low, enable electromagnetic valve stable operation, also improve the service life of electromagnetic valve.
Description
Technical field
The present invention relates to the parts of a kind of automatic gear-box, specifically a kind of automatic gear-box oil pressure regulation electromagnetism
Valve.
Background technology
Change speed gear box employed in automobile, is progressively replaced manual transmission, particularly at medium-to-high grade car by automatic gear-box
In nearly all have employed automatic gear-box.Modern Vehicle Engine electronic control system is more and more tended to select electromagnetic valve
As executor, this is because electromagnetic valve can directly control distributive value and injection timing, part injection rate can also use electromagnetism
Valve realizes.So, three item controlled only executors just can complete, and the hardware making whole electronic system can
To be greatly simplified, therefore, electromagnetic valve one of of paramount importance parts in being current automatic gear-box.
Using electromagnetic valve as the executor of the electric-control system of electromotor, it is possible not only to use switch electromagnetic valve to carry out oil circuit control
Break-make, it is also possible to use variable current electromagnetic valve realize the regulation to oil pressure, such as will make in the control of clutch
Use variable current electromagnetic valve.The gearshift control mode of automatic gear-box is speed and two parameters of throttle opening amount signal to be turned
Chemical conversion control signal, according to the schedule set, is added to the two ends of shift valve by oil pressure, to control the position of shift valve, from
And change the oil circuit of shift clutch.So, working solution force feed enters corresponding executive component, makes clutch combine or separates,
Control planetary upshift or downshift, thus realize gearshift.
Summary of the invention
The technical problem to be solved is the present situation for prior art, it is provided that rational in infrastructure, stable, makes
With a kind of automatic gear-box oil pressure electromagnetic valve for adjusting of life-span length.
The present invention solves the technical scheme that above-mentioned technical problem used:
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting, includes valve body and electromagnet assembly, and valve body radially offers P mouth,
Axially offering A mouth outside valve body ground, be provided with hydraulic fluid port between A mouth and P mouth, this is crossed and is provided with valve plug on hydraulic fluid port, valve plug with
It is arranged at the steel ball inside P mouth to be connected；Electromagnet assembly includes the dynamic iron core at coil block and coil block center, dynamic ferrum
The center of core is fixed with push rod, and this push rod front end is stretched in the centre bore of copper seat, is provided with a thimble, thimble and institute in centre bore
State steel ball to match.
The technical measures optimized also include:
The periphery being positioned at thimble in above-mentioned valve body is provided with tailstock barrel.
The periphery being positioned at thimble in above-mentioned valve body anterior is provided with guiding working of plastics.
The periphery of above-mentioned dynamic iron core is provided with copper sheathing.
The rear end of above-mentioned dynamic iron core is provided with dynamic iron core lid, and the inner side of dynamic iron core lid is provided with elastomeric pad.
Above-mentioned coil block is outside equipped with shell, and the rear end of this shell is provided with electrical connector socket.
The rear portion of above-mentioned shell is provided with a spring base, and spring base and described dynamic iron core lid are provided with spring.
Above-mentioned steel ball is placed on a valve seat, and valve seat is connected cooperation with described valve plug.
Above-mentioned P mouth is provided with P mouth filter screen；A mouth is provided with A mouth filter screen.
Above-mentioned valve body is positioned at the periphery of thimble and is provided with the first sealing ring, and this first sealing ring is embedded at the first sealing ring
In groove；Valve body is positioned at the periphery of A mouth and is provided with the second sealing ring, and this second sealing ring is embedded at the second seal groove.
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting of the present invention, including valve body and electromagnet assembly, valve body is offered
Have P mouth and A mouth, between A mouth and P mouth, be provided with hydraulic fluid port, cross and on hydraulic fluid port, be provided with valve plug, and valve plug be arranged at inside P mouth
Steel ball be connected；The center of the dynamic iron core of electromagnet assembly is fixed with push rod, and this push rod front end is stretched in the centre bore of copper seat,
Being provided with a thimble in centre bore, thimble matches with described steel ball.When coil block power-off, owing to the oil pressure of P mouth is pushed down
Steel ball, so that valve plug was blocked hydraulic fluid port and made to be cut off between P mouth and A mouth, after coil block passes through, dynamic iron core is at electromagnetism
Move right under power effect, drive push rod also to move right, then promoted thimble to move right by push rod, finally overcome P by thimble
Steel ball is backed down by the oil pressure of mouth, and steel ball drives the valve plug being connected while being backed down, and crosses hydraulic fluid port and opens wide, leads between P mouth and A mouth
Logical, electromagnetic valve is opened.It was controlled the unlimited degree of hydraulic fluid port by the size of electromagnetic force, thus realized the regulation to oil pressure.This
Electromagnetic valve is provided with a thimble, push rod and thimble between push rod and steel ball and uses separate type structure, it is possible to shorten the institute of push rod
Need length, reduce the difficulty of processing of push rod, reduce production cost；It also avoid the assembling how long push rod cause because of length to be stranded
Difficulty, the shortcoming that service life is low, enable electromagnetic valve stable operation, also improve the service life of electromagnetic valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional structure schematic diagram of the present invention；
Fig. 3 is I portion enlarged drawing in Fig. 2；
Fig. 4 is II enlarged drawing in Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
It is the structural representation of the present invention as shown in Figures 1 to 4,
Reference therein is: valve body 1, P mouth 11, P mouth filter screen 11a, A mouth 12, A mouth filter screen 12a, valve plug 2, steel ball 3, valve seat
31, coil block 4, dynamic iron core 5, push rod 51, copper sheathing 52, dynamic iron core lid 53, elastomeric pad 53a, copper seat 6, thimble 7, tailstock barrel
71, working of plastics 72, shell 8, electrical connector socket 81, spring base 82, spring the 83, first sealing ring the 91, first seal groove are guided
91a, second sealing ring the 92, second seal groove 92a.
As shown in Figures 1 to 4,
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting, includes valve body 1 and electromagnet assembly, and valve body 1 radially offers P mouth
11, axially offer A mouth 12 outside valve body 1 ground, between A mouth 12 and P mouth 11, be provided with hydraulic fluid port, this is crossed and is provided with valve on hydraulic fluid port
Plug 2, valve plug 2 is connected with the steel ball 3 being arranged at inside P mouth 11；Electromagnet assembly includes coil block 4 and coil block 4
The dynamic iron core 5 at center, the center of dynamic iron core 5 is fixed with push rod 51, and this push rod 51 front end is stretched in the centre bore of copper seat 6, center
Being provided with a thimble 7 in hole, thimble 7 matches with described steel ball 3.
Push rod 51 and the thimble 7 of this electromagnetic valve use separate type structure, it is possible to shorten the Len req of push rod 51, not only drop
The difficulty of processing of low push rod 51, also reduces the requirement to push rod 51 material, reduces production cost；Avoid simultaneously push rod 51 because of
The assembling difficulty how long length cause, the shortcoming that service life is low, enable electromagnetic valve stable operation, improve electromagnetic valve
Service life.
In embodiment, the periphery being positioned at thimble 7 in valve body 1 is provided with tailstock barrel 71.
In embodiment, the periphery being positioned at thimble 7 front portion in valve body 1 is provided with guiding working of plastics 72.
The setting of tailstock barrel 71, it is possible to thimble 7 with enough support forces, the operation making thimble 7 is more stable；And guide
Working of plastics 72 plays support, the effect guided, and it provides effectively support to the front end of thimble 7, and adopts made of plastic, it is to avoid
The raising of phase mutual friction between metalwork with metalwork and the abrasion that causes, beneficially thimble 7 service life.
In embodiment, the periphery of dynamic iron core 5 is provided with copper sheathing 52.
Copper sheathing 52 can play guide effect, and the motion making iron core 5 is more smoothly；It addition, copper sheathing 52 has well
Diamagnetism, it is possible to make magnetic force more concentrate, the control to dynamic iron core 5 is the sensitiveest.
In embodiment, the rear end of dynamic iron core 5 is provided with dynamic iron core lid 53, and the inner side of dynamic iron core lid 53 is provided with cushion
Sheet 53a.
In embodiment, coil block 4 is outside equipped with shell 8, and the rear end of this shell 8 is provided with electrical connector socket 81.
In embodiment, the rear portion of shell 8 is provided with a spring base 82, and spring base 82 and described dynamic iron core lid 53 are provided with bullet
Spring 83.
In embodiment, steel ball 3 is placed on a valve seat 31, and valve seat 31 is connected cooperation with described valve plug 2.
In embodiment, P mouth 11 is provided with P mouth filter screen 11a；A mouth 12 is provided with A mouth filter screen 12a.
The setting of P mouth filter screen 11a it can be avoided that impurity in oil, enters into electromagnetic valve from P mouth 11 internal and affect electromagnetism
The stable operation of valve and service life.A mouth filter screen 12a is then it can be avoided that introduced contaminants enters in electromagnetic valve from A mouth 12
Portion.
In embodiment, valve body 1 is positioned at the periphery of thimble 7 and is provided with the first sealing ring 91, and this first sealing ring 91 is embedded at
In first seal groove 91a；Valve body 1 is positioned at the periphery of A mouth 12 and is provided with the second sealing ring 92, and this second sealing ring 92 is embedded at
Second seal groove 92a.
The setting of the first sealing ring 91 and the second sealing ring 92 be for ensure electromagnetic valve use time with installation site it
Between sealing, and the assembling of sealing ring that the first seal groove 91a and the second seal groove 92a not only makes correspondence is the most square
Just, after also ensureing that electromagnetic valve is installed, the axial displacement of sealing ring will not deviate, it is ensured that the reliability of sealing.
Operation principle:
This one automatic gear-box oil pressure electromagnetic valve for adjusting, includes valve body 1 and electromagnet assembly, and valve body 1 radially offers P
Mouth 11, axially offers A mouth 12, was provided with hydraulic fluid port between A mouth 12 and P mouth 11 outside valve body 1 ground,
This is crossed and is provided with valve plug 2 on hydraulic fluid port, and valve plug 2 is connected with the steel ball 3 being arranged at inside P mouth 11；P mouth oil pressure pushes down steel ball
3 so that valve plug 2 forms sealing with crossing hydraulic fluid port, so that being cut off between P mouth 11 and A mouth 12, this electromagnetic valve is a kind of normally closed
Valve.The push rod 51 at the center of dynamic iron core 5, after thimble 7 power transmission in the centre bore of copper seat 6, matches with steel ball 3, push rod 51 and top
Pin 7 uses separate type structure, rational in infrastructure, easily manufactured.
After the coil block 4 of electromagnet assembly is energized, coil block 4 produces electromagnetic force, makes iron core 5 in copper sheathing 52
Moving right, the push rod 51 at dynamic iron core 5 center moves right along with dynamic iron core 5, and promotes the thimble 7 in copper seat 6 to move right,
Being overcome P mouth oil pressure to promote steel ball 3 by thimble 7 again, while steel ball 3 is promoted, the valve plug 2 being connected with steel ball 3 is the most to the right
Motion, at this moment crosses hydraulic fluid port and opens wide, turn between P mouth 11 and A mouth 12, and electromagnetic valve is opened.
The size of electromagnetic force determines the displacement that dynamic iron core 5 moves right, and finally determines the unlimited degree of hydraulic fluid port；With
Hydraulic fluid port and slowly opened wide from being sealed to so that A mouth 12 produced different Oil hydraulic character curves, thus played the work of regulation oil pressure
With.
When, after coil block 4 power-off, dynamic iron core 5 loses the effect of electromagnetic force, and steel ball 3 is pushed away by P mouth 11 oil pressure to the left, with
Being moved to the left of steel ball 3, the valve plug 2 being connected with steel ball 3 therewith to left movement, final valve plug 2 with cross hydraulic fluid port and formed and seal
And P mouth 11 and A mouth 12 are cut off, closed electromagnetic valve.During steel ball 3 moves to left, promote thimble 7, then promoted push rod 51 by thimble 7
Move to left, so that thimble 7, push rod 51 and dynamic iron core 5 return.
Highly preferred embodiment of the present invention illustrates, those of ordinary skill in the art the various changes made or remodeling are the most not
Can depart from the scope of the present invention.
Claims (10)
1. an automatic gear-box oil pressure electromagnetic valve for adjusting, includes valve body (1) and electromagnet assembly, it is characterized in that: described
Valve body (1) is upper radially offers P mouth (11), outside axially offers A mouth (12), described A mouth (12) described valve body (1)
And P mouth was provided with hydraulic fluid port between (11), this is crossed and is provided with valve plug (2) on hydraulic fluid port, described valve plug (2) be arranged at P mouth
(11) steel ball (3) of inner side is connected；Described electromagnet assembly includes coil block (4) and coil block (4) center
Dynamic iron core (5), the center of described dynamic iron core (5) is fixed with push rod (51), and the center of copper seat (6) is stretched in this push rod (51) front end
In hole, being provided with a thimble (7) in described centre bore, described thimble (7) matches with described steel ball (3).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 1, is characterized in that: described valve body (1)
The periphery being inside positioned at thimble (7) is provided with tailstock barrel (71).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 2, is characterized in that: described valve body (1)
Inside it is positioned at the anterior periphery of thimble (7) and is provided with guiding working of plastics (72).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 3, is characterized in that: described dynamic iron core
(5) periphery is provided with copper sheathing (52).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 4, is characterized in that: described dynamic iron core
(5) rear end is provided with dynamic iron core lid (53), and the inner side of dynamic iron core lid (53) is provided with elastomeric pad (53a).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 5, is characterized in that: described coil block
(4) being outside equipped with shell (8), the rear end of this shell (8) is provided with electrical connector socket (81).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 6, is characterized in that: described shell (8)
Rear portion be provided with a spring base (82), described spring base (82) and described dynamic iron core lid (53) are provided with spring (83).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 7, is characterized in that: described steel ball (3)
Being placed on a valve seat (31), described valve seat (31) is connected cooperation with described valve plug (2).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 8, is characterized in that: described P mouth (11)
In be provided with P mouth filter screen (11a)；Described A mouth (12) is provided with A mouth filter screen (12a).
A kind of automatic gear-box oil pressure electromagnetic valve for adjusting the most according to claim 9, is characterized in that: described valve body (1)
The periphery being positioned at thimble (7) is provided with the first sealing ring (91), and this first sealing ring (91) is embedded at the first seal groove (91a)
In；Described valve body (1) is positioned at the periphery of A mouth (12) and is provided with the second sealing ring (92), and this second sealing ring (92) is embedded at
Second seal groove (92a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758977.9A CN106246900B (en) | 2016-08-30 | 2016-08-30 | A kind of automatic gear-box oil pressure electromagnetic valve for adjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758977.9A CN106246900B (en) | 2016-08-30 | 2016-08-30 | A kind of automatic gear-box oil pressure electromagnetic valve for adjusting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246900A true CN106246900A (en) | 2016-12-21 |
| CN106246900B CN106246900B (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610758977.9A Active CN106246900B (en) | 2016-08-30 | 2016-08-30 | A kind of automatic gear-box oil pressure electromagnetic valve for adjusting |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61278675A (en) * | 1985-05-25 | 1986-12-09 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Solenoid valve |
| US20050098211A1 (en) * | 2003-11-07 | 2005-05-12 | Mitsubishi Denki Kabushiki Kaisha | Three-way bleed type proportional electromagnetic valve |
| CN102537475A (en) * | 2010-12-10 | 2012-07-04 | 贵州红林机械有限公司 | Improved normally open type proportion pressure electromagnetic valve |
| CN102720846A (en) * | 2005-12-21 | 2012-10-10 | 圣通电子工程公司 | Solenoid operated fluid control valve |
| CN103502697A (en) * | 2011-05-11 | 2014-01-08 | 优尼克株式会社 | Pressure control valve |
| CN205978401U (en) * | 2016-08-30 | 2017-02-22 | 宁波星宇国均汽车电磁阀有限公司 | Automatic gearbox oil pressure adjusting electromagnetic valve |
-
2016
- 2016-08-30 CN CN201610758977.9A patent/CN106246900B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61278675A (en) * | 1985-05-25 | 1986-12-09 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Solenoid valve |
| US20050098211A1 (en) * | 2003-11-07 | 2005-05-12 | Mitsubishi Denki Kabushiki Kaisha | Three-way bleed type proportional electromagnetic valve |
| CN102720846A (en) * | 2005-12-21 | 2012-10-10 | 圣通电子工程公司 | Solenoid operated fluid control valve |
| CN102537475A (en) * | 2010-12-10 | 2012-07-04 | 贵州红林机械有限公司 | Improved normally open type proportion pressure electromagnetic valve |
| CN103502697A (en) * | 2011-05-11 | 2014-01-08 | 优尼克株式会社 | Pressure control valve |
| CN205978401U (en) * | 2016-08-30 | 2017-02-22 | 宁波星宇国均汽车电磁阀有限公司 | Automatic gearbox oil pressure adjusting electromagnetic valve |
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| Publication number | Publication date |
|---|---|
| CN106246900B (en) | 2019-07-30 |
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Effective date of registration: 20190624 Address after: 315514 west side of Hengfeng Road, Fang Qiao Industrial Zone, Jiangkou street, Fenghua District, Ningbo, Zhejiang, China Applicant after: Xingyu electronic (Ningbo) Co. Ltd. Address before: 315514 55 Fang Gang Road, Fang Qiao Industrial Area, Jiangkou street, Fenghua, Ningbo, Zhejiang Applicant before: NINGBO XINGYU GUOJUN AUTOMOBILE SOLENOID VALVE CO., LTD. |
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