CN106195426A - A kind of Novel vacuum check valve - Google Patents
A kind of Novel vacuum check valve Download PDFInfo
- Publication number
- CN106195426A CN106195426A CN201610837645.XA CN201610837645A CN106195426A CN 106195426 A CN106195426 A CN 106195426A CN 201610837645 A CN201610837645 A CN 201610837645A CN 106195426 A CN106195426 A CN 106195426A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- valve body
- valve
- seal washer
- pressure sensor
- 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.)
- Pending
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Classifications
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Details Of Valves (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of Novel vacuum check valve, belonging to check valve technical field, connect valve nozzle, valve body and seal membrane including vacuum pump, valve body includes that valve body and vacuum booster connect valve nozzle, valve body includes side pocket and vacuum chamber, and seal membrane is arranged on vacuum pump and connects between valve nozzle and valve body；Valve body also includes seal washer, vacuum pressure sensor and cover plate；Valve body includes middle plush copper groove and the vacuum degree measurement end of bottom in top cavity, top cavity；Seal washer is arranged on plush copper groove；Vacuum pressure sensor includes that sensor, vacuum pressure sensor are arranged in the top cavity of valve body, and sensor presses on seal washer；Cover plate is arranged on above vacuum pressure sensor；Being seal washer through hole in the middle part of seal washer, valve body middle and upper part is provided with vacuum chamber intercommunicating pore A；The invention has the beneficial effects as follows: the size of the vacuum pressure of vacuum chamber can be detected in real time, it is achieved vacuum pump discontinuous operation just can meet requirement and realize power conservation requirement.
Description
Technical field
The present invention is a kind of vacuum check valve, relates to the novel evacuated unidirectional of vacuum pressure sensor particularly to a kind of
Valve, belongs to check valve technical field.
Background technology
Vacuum check valve i.e. operating pressure are less than the check valve of normal atmosphere, are hydraulic brake system of motor vehicle
An important safety component, be arranged between vacuum booster and brake vacuum source, its major function is vacuum automobile
High vacuum produced by source (petrol engine or vacuum pump), unidirectional savings is in vacuum booster, it is ensured that vacuum servo
Having enough vacuum in device, it is ensured that under various operating modes, automobile has enough servo vacuum power.During brake pedal,
Vacuum booster, under the effect of inner and outer air pressure difference, produces power-assisted, increases braking action, it is ensured that normal brake application action, it is achieved machine
Dynamic vehicle safety slows down or brake.
Generally in the vacuum check valve in motor vehicles, the practical vacuum degree of its vacuum chamber can not obtain the most anti-
Feedback, vacuum pump needs the most constantly to work, say, that needing to expend bigger energy, guarantee has enough vacuum
Degree, just can make automobile have enough servo vacuum power, otherwise be easy to cause vehicle accident.
Summary of the invention
It is an object of the invention to, in above-mentioned existing vacuum check valve technology, there is the practical vacuum degree of its vacuum chamber not
Can obtain definitely feeding back timely, vacuum pump needs the most constantly to work, and needs to expend bigger energy, and guarantee has foot
The defect of enough vacuum, it is provided that Novel vacuum check valve, the practical vacuum degree that can reach its vacuum chamber can obtain definitely
Feeding back timely, vacuum pump need not the most constantly work, and saves energy, it is ensured that there is the purpose of enough vacuum.
The present invention adopts the technical scheme that to achieve these goals: a kind of Novel vacuum check valve, including vacuum pump
Connecting valve nozzle, valve body and seal membrane, described vacuum pump connects valve nozzle and is arranged on valve body side, and vacuum pump connects valve nozzle outer end
For vacuum input, vacuum pump connects valve nozzle and is connected with ultrasonic bonding with valve body；Described valve body includes valve body and vacuum
Booster connects valve nozzle, and described vacuum booster connects valve nozzle and is arranged on valve body rear, and vacuum booster connects outside valve nozzle
Top is vacuum outfan, and vacuum booster connects valve nozzle and is connected with ultrasonic bonding with valve body；Described valve body bag
Include and include side pocket and vacuum chamber, described seal membrane is arranged on bottom side pocket, vacuum pump connect valve nozzle and valve body it
Between；
Described valve body also includes seal washer, vacuum pressure sensor and cover plate；Described valve body is structure as a whole, valve
Phosphor bodies includes middle plush copper groove and the vacuum degree measurement end of bottom in top cavity, top cavity；Described vacuum is examined
Survey end front end face and be provided with display panel；Described vacuum chamber at the middle part of valve body, spherical in shape, described seal washer is arranged on convex
On head groove；
Described vacuum pressure sensor includes that sensor, vacuum pressure sensor are arranged on the top cavity of valve body
In, the sensor of vacuum pressure sensor bottom presses on seal washer；Described cover plate is arranged on vacuum pressure sensor
Just, and with valve body upper end fix and be connected；Vacuum pressure sensor model is US9011-100-8；
It is seal washer through hole in the middle part of described seal washer, above seal washer through hole, is sensor base, sealing gasket
Circle is connected and sealed valve body and vacuum pressure sensor；Valve body middle and upper part is provided with vacuum chamber intercommunicating pore A, described vacuum chamber
Intercommunicating pore A connects vacuum chamber with seal washer through hole；
Valve body opposite side is provided with vacuum chamber passage, described vacuum chamber passage upper end and vacuum pressure sensor side
Lower contacts, it is ensured that the external environment condition of vacuum pressure sensor is normal pressure；
Vacuum pressure sensor can detect the size of the vacuum pressure of vacuum chamber, when power supply input starts, vacuum chamber
When vacuum pressure drops to setting value, vacuum degree measurement end provides signal, allows vacuum input work, supplements vacuum；Work as Vacuum Pressure
When power is increased to setting value, vacuum degree measurement end provides signal, allows vacuum input quit work.
Described sensor both sides are provided with pin, for output pressure signal.
The plush copper bottom portion of groove surface configuration of described valve body has seal membrane sealed muscle protruding upward, described sealing
Diaphragm seal muscle is annular, and seal membrane is press-fitted with seal membrane sealed muscle, plays complete one-way sealing effect.
The side pocket lower surface of described valve body is provided with seal washer sealed muscle protruding upward, described sealing
Washer sealing muscle is annular, and seal washer is press-fitted with seal washer sealed muscle, plays complete one-way sealing effect.
The side that described valve body is connected with vacuum input is provided with vacuum chamber intercommunicating pore B, makes vacuum chamber be communicated to
The bottom of seal membrane.
Described cover plate is that ultrasonic bonding is connected with valve body upper end, plays the effect of protection vacuum pressure sensor.
Being provided with power supply input, signal output and public terminal GND on described display panel, vacuum degree measurement end is defeated by signal
Go out to provide signal.
It is provided with passage bottom cavity bottom described vacuum chamber passage.
Compared with prior art, the invention has the beneficial effects as follows: carry pressure sensing check valve can detect vacuum in real time
The size of the vacuum pressure in chamber, realizes startup and the stopping of vacuum pump, it is achieved vacuum pump discontinuous operation is just according to the size of pressure
Requirement can be met and realize power conservation requirement.Can realize vacuum pressure when reaching higher limit, vacuum pump quits work, and check valve is airtight
Keep vacuum.When vacuum pressure reaches lower limit, vacuum pump startup is started working, and reaches the upper limit and quits work again, reaches energy-conservation
Purpose.
Accompanying drawing explanation
Fig. 1 is: front view of the present invention；
Fig. 2 is: Figure 1A-A sectional view；
Fig. 3 is: Fig. 2 A portion enlarged drawing；
Fig. 4 is: upward view of the present invention；
Fig. 5 is: valve body front view；
Fig. 6 is: Fig. 5 B-B sectional view.
Description of reference numerals: vacuum pump connects valve nozzle 1, valve body 2, valve body 201, side pocket 2011, vacuum chamber
2012, vacuum degree measurement end 2013, display panel 2014, plush copper groove 2015, top cavity 2016, vacuum booster connect valve nozzle
202, seal washer 203, vacuum pressure sensor 204, sensor 2041, pin 2042, cover plate 205, seal membrane 3, sealing
Packing ring through hole 4, vacuum chamber intercommunicating pore A 5, vacuum chamber passage 6, seal membrane sealed muscle 7, seal washer sealed muscle 8, vacuum
Input 9, vacuum chamber intercommunicating pore B 10, power supply input 11, signal output 12, public terminal GND 13.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as a limitation of the invention.
As shown in Figures 1 to 6, a kind of Novel vacuum check valve, connect valve nozzle 1, valve body 2 and seal membrane including vacuum pump
3, described vacuum pump connects valve nozzle 1 and is arranged on valve body 2 side, and it is vacuum input 9 that vacuum pump connects valve nozzle 1 outer end, vacuum
Pump connects valve nozzle 1 and is connected with ultrasonic bonding with valve body 2；Described valve body 2 includes that valve body 201 and vacuum booster connect valve
Mouth 202, described vacuum booster connects valve nozzle 202 and is arranged on valve body 201 rear, and vacuum booster connects outside valve nozzle 202
Top is vacuum outfan, and vacuum booster connects valve nozzle 202 and is connected with ultrasonic bonding with valve body 201；Described valve body
Main body 201 include side pocket 2011 and vacuum chamber 2012, described seal membrane 3 be arranged on bottom side pocket 2011,
Vacuum pump connects between valve nozzle 1 and valve body 2；
Described valve body 2 also includes seal washer 203, vacuum pressure sensor 204 and cover plate 205；Described valve body 201
Being structure as a whole, valve body 201 includes middle plush copper groove 2015 and bottom in top cavity 2016, top cavity 2016
Vacuum degree measurement end 2013；Described vacuum degree measurement end 2013 front end face is provided with display panel 2014；Described vacuum chamber 2012
At the middle part of valve body 201, spherical in shape, described seal washer 203 is arranged on plush copper groove 2015；
Described vacuum pressure sensor 204 includes that sensor 2041, vacuum pressure sensor 204 are arranged on valve body
In the top cavity 2016 of 201, the sensor 2041 of vacuum pressure sensor 204 bottom presses on seal washer 203；Described
Cover plate 205 is arranged on above vacuum pressure sensor 204, and fixing with valve body 2 upper end is connected；Vacuum pressure sensor 204 type
Number it is US9011-100-8；
It is seal washer through hole 4 in the middle part of described seal washer 203, above seal washer through hole 4, is sensor 2041 end
Portion, 203 valve bodies 2 of seal washer and vacuum pressure sensor 204 are connected and sealed；Valve body 2 middle and upper part is provided with vacuum chamber
Intercommunicating pore A 5, described 5 vacuum chambers 2012 of vacuum chamber intercommunicating pore A connect with seal washer through hole 4；
Valve body 2 opposite side is provided with vacuum chamber passage 6, is provided with passage bottom cavity bottom described vacuum chamber passage 6；
Described vacuum chamber passage 6 upper end contacts with vacuum pressure sensor 204 side lower part, it is ensured that vacuum pressure sensor 204
External environment condition be normal pressure；
Described sensor 2041 both sides are provided with pin 2042, for output pressure signal.
Plush copper groove 2015 lower surface of described valve body 201 is provided with seal membrane sealed muscle 7 protruding upward,
Described seal membrane sealed muscle 7 is annular, and seal membrane 3 is press-fitted with seal membrane sealed muscle 7, plays complete one-way sealing and makees
With.
Side pocket 2011 lower surface of described valve body 201 is provided with seal washer sealed muscle 8 protruding upward,
Described seal washer sealed muscle 8 is annular, and seal washer 203 is press-fitted with seal washer sealed muscle 8, plays complete one-way sealing and makees
With.
The side that described valve body 201 is connected with vacuum input 9 is provided with vacuum chamber intercommunicating pore B 10, makes vacuum chamber
2012 bottoms being communicated to seal membrane 3.
Described cover plate 205 is that ultrasonic bonding is connected with valve body 201 upper end, plays protection vacuum pressure sensor
The effect of 204.
Power supply input 11, signal output 12 and public terminal GND 13, vacuum degree measurement it is provided with on described display panel 2014
End 2013 provides signal by signal output 12.
Vacuum pressure sensor 204 can detect the size of the vacuum pressure of vacuum chamber 2012, when power supply input 11 startup,
When the vacuum pressure of vacuum chamber 2012 drops to setting value, vacuum degree measurement end 2013 provides signal, allow vacuum input 9 work,
Supplement vacuum；When vacuum pressure is increased to setting value, vacuum degree measurement end 2013 provides signal, allows vacuum input 9 stop
Work.
Embodiment described above, the simply one of the present invention more preferably detailed description of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention all should comprise within the scope of the present invention.
Claims (8)
1. a Novel vacuum check valve, connects valve nozzle, valve body and seal membrane including vacuum pump, and described vacuum pump connects valve nozzle
Being arranged on valve body side, it is vacuum input that vacuum pump connects valve nozzle outer end, and vacuum pump connects valve nozzle with valve body with ultrasound wave
It is welded to connect；Described valve body includes that valve body and vacuum booster connect valve nozzle, and described vacuum booster connects valve nozzle and arranges
At valve body rear, it is vacuum outfan that vacuum booster connects valve nozzle outer end, and vacuum booster connects valve nozzle and valve body
Main body connects with ultrasonic bonding；Described valve body includes that side pocket and vacuum chamber, described seal membrane are arranged on
Bottom side pocket, between vacuum pump connection valve nozzle and valve body；It is characterized in that:
Described valve body also includes seal washer, vacuum pressure sensor and cover plate；Described valve body is structure as a whole, valve body master
Body includes middle plush copper groove and the vacuum degree measurement end of bottom in top cavity, top cavity；Described vacuum degree measurement end
Front end face is provided with display panel；Described vacuum chamber at the middle part of valve body, spherical in shape, it is recessed that described seal washer is arranged on plush copper
On groove；
Described vacuum pressure sensor includes that sensor, vacuum pressure sensor are arranged in the top cavity of valve body, very
The sensor of pneumatics force transducer bottom presses on seal washer；Described cover plate is arranged on above vacuum pressure sensor, and
Fix with valve body upper end and be connected；Vacuum pressure sensor model is US9011-100-8；
It is seal washer through hole in the middle part of described seal washer, above seal washer through hole, is sensor base, seal washer handle
Valve body and vacuum pressure sensor are connected and sealed；Valve body middle and upper part is provided with vacuum chamber intercommunicating pore A, and described vacuum chamber connects
Hole A connects vacuum chamber with seal washer through hole；
Valve body opposite side is provided with vacuum chamber passage, it is ensured that the external environment condition of vacuum pressure sensor is normal pressure；
Vacuum pressure sensor can detect the size of the vacuum pressure of vacuum chamber, when power supply input starts, and the vacuum of vacuum chamber
When pressure drops to setting value, vacuum degree measurement end provides signal, allows vacuum input work, supplements vacuum；When vacuum pressure liter
When height is to setting value, vacuum degree measurement end provides signal, allows vacuum input quit work.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: described sensor both sides are provided with draws
Foot, for output pressure signal.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: the plush copper groove of described valve body
Lower surface is provided with seal membrane sealed muscle protruding upward, and described seal membrane sealed muscle is annular, and seal membrane is with close
Sealer sheet sealed muscle is press-fitted, and plays complete one-way sealing effect.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: the side pocket of described valve body
Lower surface is provided with seal washer sealed muscle protruding upward, and described seal washer sealed muscle is annular, and seal washer is with close
Seal washer sealed muscle is press-fitted, and plays complete one-way sealing effect.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: described valve body inputs with vacuum
The side that end connects is provided with vacuum chamber intercommunicating pore B, makes vacuum chamber be communicated to the bottom of seal membrane.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: described cover plate and valve body upper end
Connect for ultrasonic bonding, play the effect of protection vacuum pressure sensor.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: it is provided with power supply on described display panel
Input, signal output and public terminal GND, vacuum degree measurement end provides signal by signal output.
A kind of Novel vacuum check valve the most according to claim 1, it is characterised in that: set bottom described vacuum chamber passage
It is equipped with passage bottom cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837645.XA CN106195426A (en) | 2016-09-21 | 2016-09-21 | A kind of Novel vacuum check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837645.XA CN106195426A (en) | 2016-09-21 | 2016-09-21 | A kind of Novel vacuum check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106195426A true CN106195426A (en) | 2016-12-07 |
Family
ID=58066977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610837645.XA Pending CN106195426A (en) | 2016-09-21 | 2016-09-21 | A kind of Novel vacuum check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195426A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105590A (en) * | 2017-06-15 | 2017-08-29 | 天津市中环三峰电子有限公司 | A kind of sensor sealing shroud and vavuum pump integral controller and encapsulating method |
| CN107697058A (en) * | 2017-11-17 | 2018-02-16 | 河北亚大汽车塑料制品有限公司 | A kind of vacuum pressure sensor check valve |
| CN108132123A (en) * | 2017-12-23 | 2018-06-08 | 埃泰克汽车电子(芜湖)有限公司 | Braking automobile power-assisted vacuum sensor, pressure difference detection method and preparation method |
| CN109974930A (en) * | 2019-03-08 | 2019-07-05 | 宁波拓普电器有限公司 | Vacuum sensing device |
| CN113044014A (en) * | 2019-12-27 | 2021-06-29 | 上海亚大汽车塑料制品有限公司 | Pressure retaining device of automobile vacuum braking system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857029A1 (en) * | 1998-12-10 | 2000-07-13 | Alfmeier Praezision Ag | Back pressure valve esp. for brake force intensifier in motor vehicle has working medium-filled sound damper chamber in valve pressure pipe in front of valve seat |
| CN202080266U (en) * | 2011-05-03 | 2011-12-21 | 北汽福田汽车股份有限公司 | Braking boosting system for vehicles |
| CN102758939A (en) * | 2011-04-25 | 2012-10-31 | 宁波乔士橡塑有限公司 | Vacuum one-way valve |
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| JP2015024700A (en) * | 2013-07-25 | 2015-02-05 | 株式会社アドヴィックス | Check valve for negative pressure type booster |
| CN205220648U (en) * | 2015-11-27 | 2016-05-11 | 重庆小康工业集团股份有限公司 | Vacuum servo system for electric motor car |
| CN105882636A (en) * | 2016-04-27 | 2016-08-24 | 北京长安汽车工程技术研究有限责任公司 | Check valve assembly, brake system and vehicle |
| CN205562111U (en) * | 2016-04-15 | 2016-09-07 | 孙拓夫 | Vacuum servo system sensor of integrated check valve |
| CN206130288U (en) * | 2016-09-21 | 2017-04-26 | 宁波乔士橡塑有限公司 | Novel vacuum check valve |
-
2016
- 2016-09-21 CN CN201610837645.XA patent/CN106195426A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857029A1 (en) * | 1998-12-10 | 2000-07-13 | Alfmeier Praezision Ag | Back pressure valve esp. for brake force intensifier in motor vehicle has working medium-filled sound damper chamber in valve pressure pipe in front of valve seat |
| CN102758939A (en) * | 2011-04-25 | 2012-10-31 | 宁波乔士橡塑有限公司 | Vacuum one-way valve |
| CN202080266U (en) * | 2011-05-03 | 2011-12-21 | 北汽福田汽车股份有限公司 | Braking boosting system for vehicles |
| JP2015024700A (en) * | 2013-07-25 | 2015-02-05 | 株式会社アドヴィックス | Check valve for negative pressure type booster |
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN205220648U (en) * | 2015-11-27 | 2016-05-11 | 重庆小康工业集团股份有限公司 | Vacuum servo system for electric motor car |
| CN205562111U (en) * | 2016-04-15 | 2016-09-07 | 孙拓夫 | Vacuum servo system sensor of integrated check valve |
| CN105882636A (en) * | 2016-04-27 | 2016-08-24 | 北京长安汽车工程技术研究有限责任公司 | Check valve assembly, brake system and vehicle |
| CN206130288U (en) * | 2016-09-21 | 2017-04-26 | 宁波乔士橡塑有限公司 | Novel vacuum check valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105590A (en) * | 2017-06-15 | 2017-08-29 | 天津市中环三峰电子有限公司 | A kind of sensor sealing shroud and vavuum pump integral controller and encapsulating method |
| CN107697058A (en) * | 2017-11-17 | 2018-02-16 | 河北亚大汽车塑料制品有限公司 | A kind of vacuum pressure sensor check valve |
| CN107697058B (en) * | 2017-11-17 | 2023-08-18 | 河北亚大汽车塑料制品有限公司 | Check valve of vacuum pressure sensor |
| CN108132123A (en) * | 2017-12-23 | 2018-06-08 | 埃泰克汽车电子(芜湖)有限公司 | Braking automobile power-assisted vacuum sensor, pressure difference detection method and preparation method |
| CN109974930A (en) * | 2019-03-08 | 2019-07-05 | 宁波拓普电器有限公司 | Vacuum sensing device |
| CN113044014A (en) * | 2019-12-27 | 2021-06-29 | 上海亚大汽车塑料制品有限公司 | Pressure retaining device of automobile vacuum braking system |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| CB02 | Change of applicant information |
Inventor after: Wang Kefu Inventor after: Yang Jianli Inventor after: Chen Yong Inventor after: Yang Linwei Inventor after: Qin Binghong Inventor after: Sang Lanfen Inventor after: Xu Ren Inventor before: Wang Kefu Inventor before: Yang Jianli Inventor before: Chen Yong Inventor before: Yang Linwei Inventor before: Qin Binghong Inventor before: Sang Lanfen |
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| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
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| WD01 | Invention patent application deemed withdrawn after publication |