CN114506305A - Vacuum booster assembly - Google Patents
Vacuum booster assembly Download PDFInfo
- Publication number
- CN114506305A CN114506305A CN202210207070.9A CN202210207070A CN114506305A CN 114506305 A CN114506305 A CN 114506305A CN 202210207070 A CN202210207070 A CN 202210207070A CN 114506305 A CN114506305 A CN 114506305A
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- China
- Prior art keywords
- diaphragm
- servo
- small
- assembly
- shell
- 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
Links
- 239000000428 dust Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 52
- 125000006850 spacer group Chemical group 0.000 claims description 37
- 238000000926 separation method Methods 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000030279 gene silencing Effects 0.000 claims description 6
- 239000011257 shell material Substances 0.000 abstract description 77
- 238000005192 partition Methods 0.000 abstract description 6
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements
-
- 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
- B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
- B60T13/577—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices using levers
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention discloses a vacuum booster assembly, which relates to the field of automobile parts and comprises a control valve, a servo piston, a dust cover, a rear shell assembly, a front shell, a large servo diaphragm, a small servo diaphragm, an output push rod assembly, a pull rod bolt and a control valve rod. The front and rear shells and the partition frame of the vacuum booster are connected in series by the pull rod bolt, and the reverse acting force of the brake main cylinder is born by the pull rod bolt during operation, so that the elastic deformation and the permanent deformation are reduced. Meanwhile, the thickness of the front shell material is 0.8mm, the thickness of the rear shell material is 1.0mm, the weight of the vacuum booster is about 3.0Kg, and the weight of the vacuum booster is reduced by about 32% compared with the weight of the vacuum booster with the thickness of the shell material of 1.8 mm.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to a vacuum booster assembly.
Background
The vacuum booster assembly is a component which utilizes negative pressure to increase the force applied to a pedal by a driver in a vehicle braking system, and can effectively reduce the intensity of the force applied by the driver during braking.
When the conventional 8+ 9-inch double-diaphragm vacuum booster assembly works, the front shell is subjected to the reverse acting force of a brake master cylinder, and generates large elastic deformation (2mm) and permanent deformation under the high vacuum (-93 +/-1.3 KPa) state, wherein the deformation belongs to harmful deformation for a brake system. In order to reduce the deformation, the front shell and the rear shell are designed by adopting the material thickness of 1.5mm, even the front shell and the rear shell are thickened to 1.8mm, the weight of the vacuum booster with the shell thickness of 1.5mm is up to 4.4Kg, and the light weight of the whole vehicle is not facilitated.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a vacuum booster assembly which has the advantages of light weight, high overall structural strength, safety and reliability.
The purpose of the invention is achieved by the following technical scheme: the vacuum booster assembly comprises a control valve, a servo piston, a dust cover, a rear shell assembly, a front shell, a large servo diaphragm, a small servo diaphragm, an output push rod assembly, a pull rod bolt and a control valve rod;
the control valve rod is sleeved with a silencing ring, and the silencing ring is positioned in the servo piston; a dust cover, a rear shell assembly and a front shell are sequentially sleeved outside the servo piston, a feedback plunger is installed at one end of the control valve rod, and the other end of the control valve rod penetrates out of the dust cover and is connected with the connecting fork;
the output push rod assembly is arranged in the servo piston, a feedback disc is arranged between the output push rod assembly and the servo piston, an output push rod check ring is sleeved outside the output push rod assembly, and a return spring is clamped between the end face of the output push rod check ring and the inner end face of the front shell;
the opening part of the dust cover is arranged on an end corner of the rear shell assembly, and the rear shell assembly is sealed on the outer wall of the servo piston through a rear shell air seal; the large servo diaphragm is riveted with the large diaphragm shell and embedded on the inner wall of the rear shell assembly, the small servo diaphragm is riveted with the small diaphragm shell and embedded on the inner wall of the front shell, the separation frame is embedded between the large servo diaphragm and the small servo diaphragm, the large servo diaphragm and the small servo diaphragm are hermetically arranged on the outer wall of the servo piston, and the separation frame is hermetically sealed on the outer wall of the servo piston through the separation frame;
the two ends of the pull rod bolt are respectively fixed on the front shell and the rear shell assembly, the pull rod bolt sequentially penetrates through the front shell, the small servo diaphragm, the spacer, the large servo diaphragm and the rear shell assembly, the small servo diaphragm is in sealing connection with the pull rod bolt through the small diaphragm sealing ring, the spacer is in sealing connection with the pull rod bolt through the spacer sealing ring, and the large servo diaphragm is in sealing connection with the pull rod bolt through the large diaphragm sealing ring; the front shell is provided with a vacuum one-way valve, vacuum cavities are formed between the small servo diaphragm and the front shell and between the separation frame and the large servo diaphragm, and an atmospheric cavity is formed between the small servo diaphragm and the separation frame and between the large servo diaphragm and the rear shell.
As a further technical scheme, the small diaphragm sealing ring is integrated on the small servo diaphragm and comprises a small diaphragm outer lip and a small diaphragm inner lip, and static seal is formed between the small diaphragm outer lip and the small diaphragm shell; and a dynamic seal is formed between the inner lip of the small diaphragm and the pull rod bolt.
As a further technical scheme, the large diaphragm sealing ring is integrated on a large servo diaphragm and comprises a large diaphragm outer lip and a large diaphragm inner lip, and static seal is formed between the large diaphragm outer lip and a large diaphragm shell; and a dynamic seal is formed between the inner lip of the large diaphragm and the pull rod bolt.
As a further technical scheme, the spacer sealing ring comprises a spacer outer lip and a spacer inner lip, static sealing is formed between the spacer outer lip and the spacer, and dynamic sealing is formed between the spacer inner lip and the pull rod bolt.
As a further technical scheme, the pull rod bolt and the front shell are sealed through an O-shaped sealing ring.
As a further technical scheme, the material thickness of the front shell is 0.8mm, and the material thickness of the rear shell assembly is 1.0 mm.
The invention has the beneficial effects that: the front and rear shells and the partition frame of the vacuum booster are connected in series by the pull rod bolt, and the reverse acting force of the brake main cylinder is born by the pull rod bolt during operation, so that the elastic deformation and the permanent deformation are reduced. Meanwhile, the thickness of the front shell material is 0.8mm, the thickness of the rear shell material is 1.0mm, the weight of the vacuum booster is about 3.0Kg, and the weight of the vacuum booster is reduced by about 32% compared with the weight of the vacuum booster with the thickness of the shell material of 1.8 mm.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of a region a in fig. 1.
FIG. 3 is a schematic diagram of a large servo diaphragm.
Fig. 4 is a sectional view B-B of fig. 3.
FIG. 5 is a schematic diagram of the structure of a small servo diaphragm.
Fig. 6 is a cross-sectional view C-C of fig. 5.
Fig. 7 is a schematic structural view of the shelf seal ring.
Fig. 8 is a cross-sectional view taken along line D-D of fig. 7.
Fig. 9 is a partially enlarged schematic view of a region E in fig. 8.
Description of reference numerals: the control valve comprises a control valve 1, a noise elimination ring 2, a servo piston 3, a dust cover 4, a rear shell assembly 5, a front shell 6, a large servo diaphragm 7, a large diaphragm shell 8, a small servo diaphragm 9, a small diaphragm shell 10, a spacer 11, an output push rod assembly 12, a return spring 13, a pull rod bolt 14, a control valve rod 15, a rear shell air seal 16, a vacuum one-way valve 17, a spacer air seal 18, a feedback plunger 19, a feedback disc 20, a connecting fork 21, an output push rod check ring 22, a small diaphragm sealing ring 23, a small diaphragm outer lip 23-1, a small diaphragm inner lip 23-2, a spacer sealing ring 24, a spacer outer lip 24-1, a spacer inner lip 24-2, a large diaphragm sealing ring 25, a large diaphragm outer lip 25-1, a large diaphragm inner lip 25-2, a vacuum cavity 26, an atmospheric cavity 27 and an O-shaped sealing ring 28.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in fig. 1 to 9, the vacuum booster assembly comprises a control valve 1, a servo piston 3, a dust cover 4, a rear shell assembly 5, a front shell 6, a large servo diaphragm 7, a small servo diaphragm 9, an output push rod assembly 12, a pull rod bolt 14 and a control valve rod 15. A silencing ring 2 is sleeved outside the control valve rod 15, and the silencing ring 2 is positioned in the servo piston 3; the servo piston 3 is sequentially sleeved with a dust cover 4, a rear shell assembly 5 and a front shell 6, one end of the control valve rod 15 is provided with a feedback plunger 19, and the other end of the control valve rod 15 penetrates out of the dust cover 4 and is connected with a connecting fork 21. The output push rod assembly 12 is arranged in the servo piston 3, a feedback disc 20 is arranged between the output push rod assembly 12 and the servo piston 3, an output push rod retainer ring 22 is sleeved outside the output push rod assembly 12, and a return spring 13 is clamped between the end face of the output push rod retainer ring 22 and the inner end face of the front shell 6. The mouth of the dust cover 4 is arranged on the end corner of the rear shell assembly 5, and the rear shell assembly 5 is sealed on the outer wall of the servo piston 3 through a rear shell air seal 16. Big servo diaphragm 7 and big diaphragm shell 8 riveting and embedding are installed on the inner wall of backshell assembly 5, and little servo diaphragm 9 and little diaphragm shell 10 riveting and embedding are installed in the front on the inner wall of shell 6, and the partition frame 11 embedding is installed between big servo diaphragm 7 and little servo diaphragm 9, and big servo diaphragm 7 and little servo diaphragm 9 are all seal-mounted on servo piston 3 outer wall, and partition frame 11 seals on servo piston 3 outer wall through partition frame atmoseal 18.
Referring to fig. 2, two ends of the tie bolt 14 are respectively fixed on the front shell 6 and the rear shell assembly 5, and the tie bolt 14 sequentially penetrates through the front shell 6, the small servo diaphragm 9, the spacer 11, the large servo diaphragm 7 and the rear shell assembly 5. The small servo diaphragm 9 is connected with the pull rod bolt 14 in a sealing mode through a small diaphragm sealing ring 23, as shown in fig. 5 and 6, the small diaphragm sealing ring 23 is integrated on the small servo diaphragm 9, the small diaphragm sealing ring 23 comprises a small diaphragm outer lip 23-1 and a small diaphragm inner lip 23-2, and static sealing is formed between the small diaphragm outer lip 23-1 and the small diaphragm shell 10; a dynamic seal is formed between the inner lip 23-2 of the small diaphragm and the pull rod bolt 14.
The spacer 11 and the pull rod bolt 14 are connected in a sealing mode through a spacer sealing ring 24, as shown in fig. 7-9, the spacer sealing ring 24 comprises a spacer outer lip 24-1 and a spacer inner lip 24-2, static sealing is formed between the spacer outer lip 24-1 and the spacer 11, and dynamic sealing is formed between the spacer inner lip 24-2 and the pull rod bolt 14.
The large servo diaphragm 7 is connected with the pull rod bolt 14 in a sealing mode through a large diaphragm sealing ring 25, as shown in figures 3 and 4, the large diaphragm sealing ring 25 is integrated on the large servo diaphragm 7, the large diaphragm sealing ring 25 comprises a large diaphragm outer lip 25-1 and a large diaphragm inner lip 25-2, and static sealing is formed between the large diaphragm outer lip 25-1 and the large diaphragm shell 8; dynamic sealing is formed between the large diaphragm inner lip 25-2 and the pull rod bolt 14.
Preferably, in order to prevent abnormal noise caused by friction between metal and rubber during operation, a proper amount of silicone grease is smeared among the small diaphragm inner lip 23-2, the spacer inner lip 24-2, the large diaphragm inner lip 25-2 and the pull rod bolt 14 for lubrication.
As shown in fig. 1 and 2, a vacuum check valve 17 is disposed on the front housing 6, vacuum chambers 26 are formed between the small servo diaphragm 9 and the front housing 6 and between the spacer 11 and the large servo diaphragm 7, and an atmospheric chamber 27 is formed between the small servo diaphragm 9 and the spacer 11 and between the large servo diaphragm 7 and the rear housing 5. The tie bolt 14 is sealed from the front housing 6 by an O-ring 28.
Preferably, the material thickness of the front shell 6 is 0.8mm, and the material thickness of the rear shell assembly 5 is 1.0 mm.
The invention connects the front shell 6/the rear shell assembly 5, the spacer 11, the large servo diaphragm 7/the small servo diaphragm 9, the large diaphragm shell 8/the small diaphragm shell 10 in series through the pull rod bolt 14 (see the attached figures 1 and 2). The matching parts of the large/small servo diaphragm and the pull rod bolt are both designed with double lip-shaped sealing rings (namely an inner lip and an outer lip). A double-lip seal ring is also designed at the matching part of the spacer and the pull rod bolt. When the pull rod bolt penetrates through the separation frame, the large/small servo diaphragm and the large/small diaphragm shell, the left side and the right side of the separation frame and the large/small servo diaphragm are kept sealed when a product works, and the effect of isolating cavities is achieved, namely a vacuum cavity 26 is formed between the small servo diaphragm 9 and the front shell 6 and between the separation frame 11 and the large servo diaphragm 7, and a large air cavity 27 is formed between the small servo diaphragm 9 and the separation frame 11 and between the large servo diaphragm 7 and the rear shell 5. The outer lip of the double-lip sealing ring, the partition frame and the large/small diaphragm shell adopt static sealing design, and the inner lip and the pull rod bolt adopt dynamic sealing design. In order to prevent abnormal sound generated by friction between metal and rubber during working, a proper amount of silicone grease is smeared at each inner lip for lubrication during manufacturing. When the vacuum booster works, the output force can be transmitted to the pull rod bolt through the brake main cylinder, the front shell 6/rear shell assembly 5 and the main cylinder fixing nut, the deformation of the pull rod bolt caused by the pulling force is very small and can be almost ignored, and the deformation of the front shell 6/rear shell assembly 5 can be almost ignored at the moment. The thickness of the front shell material is 0.8mm, the thickness of the rear shell material is 1.0mm, the weight of the vacuum booster is about 3.0Kg, and the weight of the vacuum booster is reduced by about 32% compared with the weight of the vacuum booster with the thickness of 1.8mm of the shell material.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (6)
1. A vacuum booster assembly characterized by: the servo control valve comprises a control valve (1), a servo piston (3), a dust cover (4), a rear shell assembly (5), a front shell (6), a large servo diaphragm (7), a small servo diaphragm (9), an output push rod assembly (12), a pull rod bolt (14) and a control valve rod (15);
the control valve rod (15) is sleeved with a silencing ring (2), and the silencing ring (2) is positioned in the servo piston (3); a dust cover (4), a rear shell assembly (5) and a front shell (6) are sequentially sleeved outside the servo piston (3), a feedback plunger (19) is installed at one end of the control valve rod (15), and the other end of the control valve rod (15) penetrates through the dust cover (4) and is connected with a connecting fork (21);
the output push rod assembly (12) is arranged in the servo piston (3), a feedback disc (20) is arranged between the output push rod assembly (12) and the servo piston (3), an output push rod check ring (22) is sleeved outside the output push rod assembly (12), and a return spring (13) is clamped between the end face of the output push rod check ring (22) and the inner end face of the front shell (6);
the opening of the dust cover (4) is arranged on an end corner of the rear shell assembly (5), and the rear shell assembly (5) is sealed on the outer wall of the servo piston (3) through a rear shell air seal (16); the large servo diaphragm (7) and the large diaphragm shell (8) are riveted and embedded on the inner wall of the rear shell assembly (5), the small servo diaphragm (9) and the small diaphragm shell (10) are riveted and embedded on the inner wall of the front shell (6), the separation frame (11) is embedded between the large servo diaphragm (7) and the small servo diaphragm (9), the large servo diaphragm (7) and the small servo diaphragm (9) are hermetically arranged on the outer wall of the servo piston (3), and the separation frame (11) is hermetically arranged on the outer wall of the servo piston (3) through a separation frame air seal (18);
the two ends of the pull rod bolt (14) are respectively fixed on the front shell (6) and the rear shell assembly (5), the pull rod bolt (14) sequentially penetrates through the front shell (6), the small servo diaphragm (9), the spacer (11), the large servo diaphragm (7) and the rear shell assembly (5), the small servo diaphragm (9) and the pull rod bolt (14) are in sealing connection through the small diaphragm sealing ring (23), the spacer (11) and the pull rod bolt (14) are in sealing connection through the spacer sealing ring (24), and the large servo diaphragm (7) and the pull rod bolt (14) are in sealing connection through the large diaphragm sealing ring (25); the front shell (6) is provided with a vacuum one-way valve (17), a vacuum cavity (26) is formed between the small servo diaphragm (9) and the front shell (6) and between the separation frame (11) and the large servo diaphragm (7), and an atmospheric cavity (27) is formed between the small servo diaphragm (9) and the separation frame (11) and between the large servo diaphragm (7) and the rear shell (5).
2. A vacuum booster assembly as set forth in claim 1 wherein: the small diaphragm sealing ring (23) is integrated on the small servo diaphragm (9), the small diaphragm sealing ring (23) comprises a small diaphragm outer lip (23-1) and a small diaphragm inner lip (23-2), and static sealing is formed between the small diaphragm outer lip (23-1) and the small diaphragm shell (10); dynamic seal is formed between the inner lip (23-2) of the small diaphragm and the pull rod bolt (14).
3. A vacuum booster assembly as set forth in claim 1 wherein: the large diaphragm sealing ring (25) is integrated on the large servo diaphragm (7), the large diaphragm sealing ring (25) comprises a large diaphragm outer lip (25-1) and a large diaphragm inner lip (25-2), and static sealing is formed between the large diaphragm outer lip (25-1) and the large diaphragm shell (8); dynamic seal is formed between the inner lip (25-2) of the large diaphragm and the pull rod bolt (14).
4. A vacuum booster assembly as set forth in claim 1 wherein: the spacer sealing ring (24) comprises a spacer outer lip (24-1) and a spacer inner lip (24-2), static sealing is formed between the spacer outer lip (24-1) and the spacer (11), and dynamic sealing is formed between the spacer inner lip (24-2) and the pull rod bolt (14).
5. A vacuum booster assembly as set forth in claim 1 wherein: the pull rod bolt (14) and the front shell (6) are sealed through an O-shaped sealing ring (28).
6. A vacuum booster assembly as set forth in any one of claims 1-5 wherein: the thickness of the material of the front shell (6) is 0.8mm, and the thickness of the material of the rear shell assembly (5) is 1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207070.9A CN114506305A (en) | 2022-03-03 | 2022-03-03 | Vacuum booster assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207070.9A CN114506305A (en) | 2022-03-03 | 2022-03-03 | Vacuum booster assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114506305A true CN114506305A (en) | 2022-05-17 |
Family
ID=81553380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210207070.9A Pending CN114506305A (en) | 2022-03-03 | 2022-03-03 | Vacuum booster assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114506305A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3510844A1 (en) * | 1985-03-26 | 1986-10-09 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Vacuum brake booster |
| CN201002601Y (en) * | 2006-12-22 | 2008-01-09 | 吉林汽车制动器厂 | Penetration type double-diaphragm vacuum booster assembly |
| US20100132543A1 (en) * | 2008-11-28 | 2010-06-03 | Hitachi Automotive Systems, Ltd. | Pneumatic booster |
| CN202152048U (en) * | 2011-07-04 | 2012-02-29 | 安徽中鼎泰克汽车密封件有限公司 | Middle shell air seal for automobile vacuum booster |
| CN202728208U (en) * | 2012-07-30 | 2013-02-13 | 温岭市奥达机械有限公司 | Vacuum booster |
| CN203496881U (en) * | 2013-09-04 | 2014-03-26 | 浙江万向系统有限公司 | Vacuum booster assembly with BA valve |
| CN104154232A (en) * | 2014-07-31 | 2014-11-19 | 广东永泉阀门科技有限公司 | Y-shaped sealing ring |
| CN208646832U (en) * | 2018-07-31 | 2019-03-26 | 浙江亚太机电股份有限公司 | A kind of double diaphragms of thin bar run through vacuum booster |
| CN110949346A (en) * | 2019-12-23 | 2020-04-03 | 吉林东光奥威汽车制动系统有限公司 | 11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure |
| CN217415727U (en) * | 2022-03-03 | 2022-09-13 | 浙江万向系统有限公司 | Vacuum booster assembly |
-
2022
- 2022-03-03 CN CN202210207070.9A patent/CN114506305A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3510844A1 (en) * | 1985-03-26 | 1986-10-09 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Vacuum brake booster |
| CN201002601Y (en) * | 2006-12-22 | 2008-01-09 | 吉林汽车制动器厂 | Penetration type double-diaphragm vacuum booster assembly |
| US20100132543A1 (en) * | 2008-11-28 | 2010-06-03 | Hitachi Automotive Systems, Ltd. | Pneumatic booster |
| CN202152048U (en) * | 2011-07-04 | 2012-02-29 | 安徽中鼎泰克汽车密封件有限公司 | Middle shell air seal for automobile vacuum booster |
| CN202728208U (en) * | 2012-07-30 | 2013-02-13 | 温岭市奥达机械有限公司 | Vacuum booster |
| CN203496881U (en) * | 2013-09-04 | 2014-03-26 | 浙江万向系统有限公司 | Vacuum booster assembly with BA valve |
| CN104154232A (en) * | 2014-07-31 | 2014-11-19 | 广东永泉阀门科技有限公司 | Y-shaped sealing ring |
| CN208646832U (en) * | 2018-07-31 | 2019-03-26 | 浙江亚太机电股份有限公司 | A kind of double diaphragms of thin bar run through vacuum booster |
| CN110949346A (en) * | 2019-12-23 | 2020-04-03 | 吉林东光奥威汽车制动系统有限公司 | 11+11 inch through type double-diaphragm vacuum booster assembly with ventilation structure |
| CN217415727U (en) * | 2022-03-03 | 2022-09-13 | 浙江万向系统有限公司 | Vacuum booster assembly |
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