CN107826094A - A kind of vacuum booster of double diaphragms - Google Patents
A kind of vacuum booster of double diaphragms Download PDFInfo
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- CN107826094A CN107826094A CN201711299564.XA CN201711299564A CN107826094A CN 107826094 A CN107826094 A CN 107826094A CN 201711299564 A CN201711299564 A CN 201711299564A CN 107826094 A CN107826094 A CN 107826094A
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- valve body
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- back casing
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Classifications
-
- 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
- B60T13/569—Vacuum systems indirect, i.e. vacuum booster units characterised by piston details, e.g. construction, mounting of diaphragm
-
- 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)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention relates to a kind of vacuum booster of double diaphragms, belong to automobile manufacturing field.Including procapsid part, master cylinder push rod part, return spring, valve body, the second boosting disk, secondary diaphragm, middle housing parts, primary diaphragm, back casing part, the first boosting disk, reaction plate, briquetting, locking plate, stem member, dust-proof cap assembly, rubber valve member and air valve base, air inlet pipe one end is fixed with the riveting of middle housing parts, the other end and primary diaphragm radial interference are connected, and air inlet pipe is communicated with the B of atmosphere chamber one and the D of atmosphere chamber two respectively by interior bone.Advantage is：Structure is novel, and the area of air intake duct is big, and is fixed value, is not influenceed by other conditions and reduces air inflow, and air inflow is big, and speed is fast, and the efficiency high of booster, backhaul is fast, and especially in booster frequent operation, advantage becomes apparent.
Description
Technical field
The invention belongs to automobile manufacturing field, refers in particular to a kind of automobile vacuum booster.
Background technology
Vacuum booster is brake power assist unit gently, in car brakes, is the key in brake system of car
Part.Its operation principle be using petrol engine work when caused vacuum, or diesel engine installed additional it is true
Vacuum caused by empty pump, when driver depresses brake pedal, by means of the different pressure of two working chambers in vacuum booster
Thrust caused by difference, amplify brake pedal force by design proportion to promote brake master cylinder piston, the system in compression brake master cylinder
Hydrodynamic produce hydraulic pressure, and be delivered to wheel brake brake-shoe is contacted with hub for vehicle wheel so that produce frictional resistance control vehicle subtract
Speed or braking.
In present Automobile Design, due to vehicle configuration and the raising of the comfortableness of braking effect and human pilot, vacuum
The dimensions of booster has the trend gradually increased, 6,7,8,9 from normality inch are to 10,11,7+8,8+9 inch transition.
The increase of the dimensions of vacuum booster, bigger brake servo power can be produced.The structure type of vacuum booster is main
There are single diaphragm type and the double diaphragm types of series connection, conventional double diaphragm vacuum boosters are described below, Fig. 1 is that conventional double diaphragm vacuum help
The structural representation of power device, double diaphragm vacuum boosters mainly by procapsid part 01, master cylinder push rod part 02, return spring 03,
Valve body 04, the second boosting disk 05, secondary diaphragm 06, the inlet channel 0601 of secondary diaphragm, middle housing parts 07, primary diaphragm
08th, the inlet channel 0801 of primary diaphragm, back casing part 09, the first boosting disk 010, reaction plate 011, briquetting 012, locking plate
013rd, stem member 014, dust-proof cap assembly 015, rubber valve member 016, air valve base 017 form；
Procapsid part 01 coordinates with the gap of back casing part 09, and riveting is fixed, secondary diaphragm 06 and the gap of back casing part 09
Coordinating, secondary diaphragm 06 is squeezed in the space between middle housing parts 07 and procapsid part 01, back casing part 09, and second
Boosting disk 05 and the gap of valve body 04 are fixed together with merging riveting, the rubber part and the radial direction mistake of valve body 04 of middle housing parts 07
It is full of cooperation, the external diameter of primary diaphragm 08 coordinates with the gap of back casing part 09, is squeezed by middle housing parts 07 and back casing part 09
Pressure is fixed, and the internal diameter of primary diaphragm 08 and the radial interference fit of valve body 04, the endoporus of the first boosting disk 010 coordinate with the gap of valve body 04,
Fixed by riveting, radially gap coordinates briquetting 012 with valve body 04, and one end contacts with air valve base 017, the other end and feedback
Disk 011 contacts, and locking plate 013 coordinates with the gap of valve body 04, and end face contacts with back casing part 09, matched somebody with somebody with the gap of air valve base 017
Close.Air valve base 017 coordinates with the gap of stem member 014, is fixed by riveting, and rubber valve member 016 is matched somebody with somebody with the interference of valve body 04
Close, fixed by stem member 014 and the extruding of valve body 04, end face contacts with air valve base 017, the radial direction of reaction plate 011 and master cylinder
Putter component 02 is interference fitted, and master cylinder push rod part 02 coordinates with the gap of valve body 04, master cylinder push rod part 02 and the end of reaction plate 011
Face contacts.
Operation principle as shown in Fig. 2 double diaphragm vacuum boosters by two vacuum chambers, the A' of vacuum chamber one, the C' of vacuum chamber two,
With two atmosphere chambers, the B' of atmosphere chamber one, the D' of atmosphere chamber two are formed, and vacuum source caused by engine work, pass through vacuum tube handle
The A' of vacuum chamber one, the B' of atmosphere chamber one, the C' of vacuum chamber two, the air of the intracavitary of two D' of atmosphere chamber tetra- are all taken away, form certain vacuum
Degree.When braking, booster stem member stress is moved forward, and the vacuum valve port of booster is closed, the wherein A' of vacuum chamber one and true
The C' of cavity two is communicated all the time, and the B' of atmosphere chamber one and the D' of atmosphere chamber two are communicated all the time, separates two vacuum chambers and two atmosphere chambers
Open, air valve port is opened afterwards, and air enters two atmosphere chambers, the B' of atmosphere chamber one and the D' of atmosphere chamber two, and two diaphragms are front and rear
Servo vacuum power is produced in the presence of cavity pressure difference, along with valve rod input power, master cylinder push rod is produced the power output increased.
After automobile engine is opened, start to vacuumize the vacuum chamber of booster, in automobile brake, valve rod is defeated
Enter reach, the rubber valve members such as valve rod, air valve base and the rubber valve member for pushing dynamic control valve member to connect with valve body sealing surface
Touch and seal and close vacuum valve port, the atmosphere chamber and vacuum chamber for making booster separate, in the presence of input power and vacuum power
The drag of valve rod return spring that air valve base overcomes continues reach and opens air valve port with rubber valve isolation of components, and air initially enters
True booster atmosphere chamber makes booster produce servo force, servo force is to pass through so that atmosphere chamber and vacuum chamber generation pressure differential
Diaphragm, boosting disk, valve body are applied to reaction plate and are delivered to master cylinder push rod part, when valve rod input power reaches certain numerical value, by
It is continuously increased in the air for entering atmosphere chamber, so as to increase the pressure differential of two chambers rapidly, and makes whole valve body, diaphragm and boosting disk
Moved forward in the presence of servo force, and servo force is acted on reaction plate, until air valve port progressively closes off, reach equilibrium-like
State；When releasing braking, valve rod input power reduces, now under the reaction force and valve rod return spring effect of elastic resistance of reaction plate, valve
Bar drives the rapid return of air valve base, and air valve base compressing rubber valve member causes air valve port to close, rubber valve member and valve
Body sealing surface depart from make vacuum valve port open, the atmosphere chamber and vacuum chamber of booster are unimpeded, master cylinder push rod reaction force with
Moved in the presence of the drag of return spring after valve body, return to original operating position.Intake method is the two of conventional double diaphragm strengtheners
The individual B' of atmosphere chamber atmosphere chamber one and the D' of atmosphere chamber two air duct are the inlet channel 0801 and secondary diaphragm in primary diaphragm
Inlet channel 0601, duct position is as shown in Figure 3.
The external diameter of primary diaphragm 08 coordinates with the gap of back casing part 09, is squeezed by middle housing parts 07 and back casing part 09
Pressure is fixed.Secondary diaphragm 09 coordinates with the gap of back casing part 09, and secondary diaphragm 06 is squeezed in middle housing parts 07 and procapsid
In space between part 01, back casing part 09, the air inlet on inlet channel 0801 and secondary diaphragm on primary diaphragm is led to
Road 0601 can be such that diaphragm is located at arrow because the limitation of structure, part wall thickness dimension can not possibly be very big after booster assembling
Air inlet energy road area is squeezed, and the area of actual inlet channel will reduce, and so directly affect intake efficiency, also just make
The power-assisted efficiency of booster is had a greatly reduced quality, and affects indirectly booster opening speed, and opening speed is slack-off, the repetition system of booster
Dynamic effect is deteriorated.
The content of the invention
The present invention provides a kind of vacuum booster of double diaphragms, to solve conventional double diaphragm vacuum booster intake efficiencies
The problem of low, power-assisted efficiency is affected, and booster opening speed is slack-off, and the repetition braking effect of booster is deteriorated.
The present invention adopts the technical scheme that：Helped including procapsid part, master cylinder push rod part, return spring, valve body, second
Power disk, secondary diaphragm, middle housing parts, primary diaphragm, back casing part, the first boosting disk, reaction plate, briquetting, locking plate, valve rod
Part, dust-proof cap assembly, rubber valve member and air valve base；The riveting of air inlet pipe one end and middle housing parts is fixed, the other end with
Primary diaphragm radial interference is connected, and air inlet pipe is communicated with atmosphere chamber one and atmosphere chamber two respectively by interior bone.
The primary diaphragm and or secondary diaphragm on there is no inlet channel.
The procapsid part coordinates with back casing parts clearance, riveting is fixed, secondary diaphragm and back casing parts clearance
Coordinate, secondary diaphragm is squeezed in the space between middle housing parts and procapsid part, back casing part, the second boosting disk with
Valve body gap is fixed together with riveting is merged, rubber part and the valve body radial interference fit of middle housing parts, primary diaphragm
External diameter coordinates with back casing parts clearance, is fixed by middle housing parts and the extruding of back casing part, primary diaphragm internal diameter and valve
Body radial interference fit, the first boosting disk endoporus and valve body gap coordinate, and are fixed by riveting, briquetting and valve body radially gap
Coordinate, one end contacts with air valve base, and the other end contacts with reaction plate, and locking plate coordinates with valve body gap, end face and rear housing section
Part contacts, and coordinates with air valve base gap, and air valve base coordinates with stem member gap, riveting is fixed, rubber valve member and valve
Body is interference fitted, and is fixed by stem member and valve body extruding, and end face contacts with air valve base, reaction plate radial direction and master cylinder push rod
Part is interference fitted, and master cylinder push rod part coordinates with valve body gap, master cylinder push rod part and reaction plate end contact, return spring position
Between procapsid part and valve body, dust-proof cap assembly is socketed in outside stem member, it is characterised in that：Air inlet pipe one end and middle shell
Body component riveting is fixed, the other end and primary diaphragm radial interference connect, air inlet pipe by interior bone respectively with atmosphere chamber one
Communicated with atmosphere chamber two.
The advantage of the invention is that：Structure is novel, and the area of air intake duct is big, and is fixed value, not by other conditions shadow
To ring and reduce air inflow, air inflow is big, and speed is fast, the efficiency high of booster, and backhaul is fast, especially in booster frequent operation,
Advantage becomes apparent.
Brief description of the drawings
Fig. 1 is the structural representation of background of invention；
Fig. 2 is vacuum chamber one in background of invention, atmosphere chamber one, vacuum chamber two, the position relationship schematic diagram of atmosphere chamber two；
Fig. 3 is duct position schematic diagram in background of invention；
In figure, procapsid part 01, master cylinder push rod part 02, return spring 03, valve body 04, the second boosting disk 05, secondary diaphragm 06,
Inlet channel 0601, middle housing parts 07, primary diaphragm 08, inlet channel 0801, the back casing of primary diaphragm of secondary diaphragm
Part 09, the first boosting disk 010, reaction plate 011, briquetting 012, locking plate 013, stem member 014, dust-proof cap assembly 015, rubber
Valve member 016, air valve base 017, the A' of vacuum chamber one, the B' of atmosphere chamber one, the C' of vacuum chamber two, the D' of atmosphere chamber two；
Fig. 4 is the structural representation of the present invention；
Fig. 5 is the structural representation that atmosphere chamber one of the present invention connects with atmosphere chamber two；
In figure, procapsid part 1, master cylinder push rod part 2, return spring 3, valve body 4, the second boosting disk 5, secondary diaphragm 6, middle housing
It is part 7, primary diaphragm 8, back casing part 9, the first boosting disk 10, reaction plate 11, briquetting 12, locking plate 13, stem member 14, anti-
It is dust hood part 15, rubber valve member 16, air valve base 17, air inlet pipe 18, the A of vacuum chamber one, the C of vacuum chamber two, the B of atmosphere chamber one, big
The D of air cavity two.
Embodiment
As shown in figure 4, including procapsid part 1, master cylinder push rod part 2, return spring 3, valve body 4, the second boosting disk 5,
Two diaphragms 6, middle housing parts 7, primary diaphragm 8, back casing part 9, the first boosting disk 10, reaction plate 11, briquetting 12, locking plate
13rd, stem member 14, dust-proof cap assembly 15, rubber valve member 16 and air valve base 17；The one end of air inlet pipe 18 and middle housing parts 7
Riveting is fixed, the other end and the radial interference of primary diaphragm 8 connect, air inlet pipe by interior bone respectively with the B of atmosphere chamber one and greatly
The D of air cavity two is communicated.
The primary diaphragm 8 and or secondary diaphragm 6 on there is no inlet channel.
The procapsid part 1 coordinates with the gap of back casing part 9, riveting is fixed, secondary diaphragm 6 and back casing part 9
Gap coordinates, and secondary diaphragm 6 is squeezed in the space between middle housing parts 7 and procapsid part 1, back casing part 9, and second
Boosting disk 5 and the gap of valve body 4 are fixed together with merging riveting, and rubber part and the radial interference of valve body 4 of middle housing parts 7 are matched somebody with somebody
Closing, the external diameter of primary diaphragm 8 coordinates with the gap of back casing part 9, is fixed by middle housing parts 7 and the extruding of back casing part 9, the
The internal diameter of one diaphragm 8 and the radial interference fit of valve body 4, the endoporus of the first boosting disk 10 coordinate with the gap of valve body 4, are fixed by riveting,
Radially gap coordinates briquetting 12 with valve body 4, and one end contacts with air valve base 17, and the other end contacts with reaction plate 11, locking plate 13
Coordinate with the gap of valve body 4, end face contacts with back casing part 9, coordinates with the gap of air valve base 17, air valve base 17 and valve stem
The gap of part 14 coordinates, riveting is fixed, and rubber valve member 16 is interference fitted with valve body 4, is extruded by stem member 14 and valve body 4 solid
Fixed, end face is contacted with air valve base 17, and the radial direction of reaction plate 11 is interference fitted with master cylinder push rod part 2, master cylinder push rod part 2 and valve
The gap of body 4 coordinates, master cylinder push rod part 2 and the end contact of reaction plate 11, return spring 3 between procapsid part 1 and valve body 4,
Dust-proof cap assembly 15 is socketed in outside stem member 14.
Operation principle：
The operation principle of the present invention is identical with the operation principle of conventional double diaphragm vacuum boosters, and different intake method is such as
Under：
Intake method uses air inlet pipe mode, atmosphere chamber one B and atmosphere chamber two D phase of the air inlet pipe interior bone directly with booster
It is logical, there is no inlet channel on primary diaphragm 8 and secondary diaphragm 6；The area of air intake duct is big, and is fixed value, not by other
Part influences and reduces air inflow, and air inflow is big, and speed is fast, the efficiency high of booster, and backhaul is fast, especially in booster frequent operation
When, advantage becomes apparent.See Fig. 5.
Claims (5)
1. a kind of vacuum booster of double diaphragms, including procapsid part, master cylinder push rod part, return spring, valve body, the second power-assisted
Disk, secondary diaphragm, middle housing parts, primary diaphragm, back casing part, the first boosting disk, reaction plate, briquetting, locking plate, valve stem
Part, dust-proof cap assembly, rubber valve member and air valve base；It is characterized in that：The riveting of air inlet pipe one end and middle housing parts is fixed,
The other end is connected with primary diaphragm radial interference, and air inlet pipe is communicated with atmosphere chamber one and atmosphere chamber two respectively by interior bone.
A kind of 2. vacuum booster of double diaphragms according to claim 1, it is characterised in that：Do not have on the primary diaphragm
Inlet channel.
A kind of 3. vacuum booster of double diaphragms according to claim 1 or 2, it is characterised in that：Do not have on secondary diaphragm
Inlet channel.
A kind of 4. vacuum booster of double diaphragms according to claim 1 or 2, it is characterised in that：Procapsid part is with after
Housing parts gap coordinates, riveting is fixed, and secondary diaphragm coordinates with back casing parts clearance, and secondary diaphragm is squeezed in middle housing section
In space between part and procapsid part, back casing part, the second boosting disk and valve body gap are fixed on one with merging riveting
Rise, rubber part and the valve body radial interference fit of middle housing parts, primary diaphragm external diameter coordinate with back casing parts clearance, lead to
Cross middle housing parts and back casing part extruding to fix, primary diaphragm internal diameter and valve body radial interference fit, in the first boosting disk
Hole coordinates with valve body gap, is fixed by riveting, and radially gap coordinates briquetting with valve body, and one end contacts with air valve base, separately
One end contacts with reaction plate, and locking plate coordinates with valve body gap, end face and back casing component contact, coordinates with air valve base gap,
Air valve base coordinates with stem member gap, riveting is fixed, and rubber valve member is interference fitted with valve body, passes through stem member and valve
Body extruding is fixed, and end face contacts with air valve base, and reaction plate is radially interference fitted with master cylinder push rod part, master cylinder push rod part and
Valve body gap coordinates, and master cylinder push rod part and reaction plate end contact, return spring is between procapsid part and valve body, dust cover
Part is socketed in outside stem member.
A kind of 5. vacuum booster of double diaphragms according to claim 3, it is characterised in that：Procapsid part and back casing
Parts clearance coordinates, riveting is fixed, and secondary diaphragm and back casing parts clearance coordinate, secondary diaphragm be squeezed in middle housing parts with
In space between procapsid part, back casing part, the second boosting disk and valve body gap are fixed together with merging riveting, in
The rubber part of housing parts and valve body radial interference fit, primary diaphragm external diameter coordinates with back casing parts clearance, in
Housing parts and the extruding of back casing part are fixed, primary diaphragm internal diameter and valve body radial interference fit, the first boosting disk endoporus with
Valve body gap coordinates, and is fixed by riveting, and radially gap coordinates briquetting with valve body, and one end contacts with air valve base, the other end
Contacted with reaction plate, locking plate coordinates with valve body gap, end face and back casing component contact, coordinates with air valve base gap, air
Valve seat coordinates with stem member gap, riveting is fixed, and rubber valve member is interference fitted with valve body, is squeezed by stem member and valve body
Pressure is fixed, and end face contacts with air valve base, and reaction plate is radially interference fitted with master cylinder push rod part, master cylinder push rod part and valve body
Gap coordinates, and master cylinder push rod part and reaction plate end contact, return spring is between procapsid part and valve body, dust-proof cap assembly
It is socketed in outside stem member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711299564.XA CN107826094A (en) | 2017-12-09 | 2017-12-09 | A kind of vacuum booster of double diaphragms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711299564.XA CN107826094A (en) | 2017-12-09 | 2017-12-09 | A kind of vacuum booster of double diaphragms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107826094A true CN107826094A (en) | 2018-03-23 |
Family
ID=61642128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711299564.XA Withdrawn CN107826094A (en) | 2017-12-09 | 2017-12-09 | A kind of vacuum booster of double diaphragms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107826094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177956A (en) * | 2018-08-21 | 2019-01-11 | 吉林东光奥威汽车制动系统有限公司 | A kind of 8 inch vacuum booster assemblies with floating type diaphragm structure |
| CN113844419A (en) * | 2021-11-10 | 2021-12-28 | 安徽江淮汽车集团股份有限公司 | Structure for improving power assisting effect of vacuum booster |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302011B1 (en) * | 2000-05-30 | 2001-10-16 | Robert Bosch Corporation | Output push rod and spring retainer |
| US20050074353A1 (en) * | 2003-10-07 | 2005-04-07 | Delphi Technologies Inc. | Diaphragm-less vacuum booster |
| KR20050103744A (en) * | 2004-04-27 | 2005-11-01 | 한국델파이주식회사 | A vacuum booster structure of a brake for a vehicle |
| DE102005054758A1 (en) * | 2005-11-17 | 2007-05-24 | Continental Teves Ag & Co. Ohg | Pneumatic brake booster of tandem type for e.g. hydraulic vehicle brake system, has booster casing, whereby connecting channels are formed in one or more separate components which are arranged in connection area of both casing half-shells |
| CN202279105U (en) * | 2011-10-30 | 2012-06-20 | 吉林汽车制动器厂 | Novel vacuum booster with feedback disc type structure and variable boosting ratio |
| CN202728210U (en) * | 2012-07-30 | 2013-02-13 | 温岭市奥达机械有限公司 | Vacuum booster |
| CN205854123U (en) * | 2016-08-04 | 2017-01-04 | 合肥华集汽车部件有限公司 | A kind of double diaphragm vacuum booster |
| CN207725388U (en) * | 2017-12-09 | 2018-08-14 | 吉林东光奥威汽车制动系统有限公司 | A kind of vacuum booster of double diaphragms |
-
2017
- 2017-12-09 CN CN201711299564.XA patent/CN107826094A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302011B1 (en) * | 2000-05-30 | 2001-10-16 | Robert Bosch Corporation | Output push rod and spring retainer |
| US20050074353A1 (en) * | 2003-10-07 | 2005-04-07 | Delphi Technologies Inc. | Diaphragm-less vacuum booster |
| KR20050103744A (en) * | 2004-04-27 | 2005-11-01 | 한국델파이주식회사 | A vacuum booster structure of a brake for a vehicle |
| DE102005054758A1 (en) * | 2005-11-17 | 2007-05-24 | Continental Teves Ag & Co. Ohg | Pneumatic brake booster of tandem type for e.g. hydraulic vehicle brake system, has booster casing, whereby connecting channels are formed in one or more separate components which are arranged in connection area of both casing half-shells |
| CN202279105U (en) * | 2011-10-30 | 2012-06-20 | 吉林汽车制动器厂 | Novel vacuum booster with feedback disc type structure and variable boosting ratio |
| CN202728210U (en) * | 2012-07-30 | 2013-02-13 | 温岭市奥达机械有限公司 | Vacuum booster |
| CN205854123U (en) * | 2016-08-04 | 2017-01-04 | 合肥华集汽车部件有限公司 | A kind of double diaphragm vacuum booster |
| CN207725388U (en) * | 2017-12-09 | 2018-08-14 | 吉林东光奥威汽车制动系统有限公司 | A kind of vacuum booster of double diaphragms |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177956A (en) * | 2018-08-21 | 2019-01-11 | 吉林东光奥威汽车制动系统有限公司 | A kind of 8 inch vacuum booster assemblies with floating type diaphragm structure |
| CN113844419A (en) * | 2021-11-10 | 2021-12-28 | 安徽江淮汽车集团股份有限公司 | Structure for improving power assisting effect of vacuum booster |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180323 |