JPH0335865U - - Google Patents

Info

Publication number
JPH0335865U
JPH0335865U JP1989094911U JP9491189U JPH0335865U JP H0335865 U JPH0335865 U JP H0335865U JP 1989094911 U JP1989094911 U JP 1989094911U JP 9491189 U JP9491189 U JP 9491189U JP H0335865 U JPH0335865 U JP H0335865U
Authority
JP
Japan
Prior art keywords
chamber
valve body
center plate
variable pressure
communicates
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.)
Granted
Application number
JP1989094911U
Other languages
English (en)
Other versions
JPH0542946Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989094911U priority Critical patent/JPH0542946Y2/ja
Priority to AU57545/90A priority patent/AU618902B2/en
Priority to US07/542,748 priority patent/US5083496A/en
Priority to KR2019900011682U priority patent/KR920006887Y1/ko
Publication of JPH0335865U publication Critical patent/JPH0335865U/ja
Application granted granted Critical
Publication of JPH0542946Y2 publication Critical patent/JPH0542946Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • 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
    • B60T13/563—Vacuum systems indirect, i.e. vacuum booster units with multiple booster units, e.g. tandem booster units

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Systems And Boosters (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す断面図、第２
図は第１図の要部の拡大断面図、第３図は本考案
の他の実施例を示す断面図である。 １…フロントシエル、２…リヤシエル、３…セ
ンタープレート、４…フロント室、５…リヤ室、
６…バルブボデイ、７…環状シール手段、１１，
１２…ダイヤフラム、７ｅ，１５２ｅ…スリツト
（通路）、９，１０…パワーピストン、２１，２
３…定圧通路、２６，２７…変圧通路、Ａ，Ｃ…
定圧室、Ｂ，Ｄ…変圧室。

Claims (1)

    【実用新案登録請求の範囲】
  1. シエル内をフロント室とリヤ室に区画するセン
    タープレートと、このセンタープレートに摺動自
    在に貫通させたバルブボデイと、上記センタープ
    レートとバルブボデイとの間の気密を保持する環
    状シール手段と、上記センタープレートで区画し
    た各室内に設けられて上記バルブボデイにそれぞ
    れ連結されたパワーピストンと、各パワーピスト
    ンの背面に張設されて各室をそれぞれ定圧室と変
    圧室とに区画するダイアフラムと、上記定圧室間
    を連通する定圧通路と変圧室間を連通する変圧通
    路とを備えたブレーキ倍力装置において、上記環
    状シール手段にその内周と外周とを連通する通路
    を形成したことを特徴とするブレーキ倍力装置の
    シール装置。
JP1989094911U 1989-08-11 1989-08-11 Expired - Lifetime JPH0542946Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1989094911U JPH0542946Y2 (ja) 1989-08-11 1989-08-11
AU57545/90A AU618902B2 (en) 1989-08-11 1990-06-19 Seal unit for brake booster
US07/542,748 US5083496A (en) 1989-08-11 1990-06-22 Seal unit for brake booster
KR2019900011682U KR920006887Y1 (ko) 1989-08-11 1990-08-02 브레이크 배력장치의 시일장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989094911U JPH0542946Y2 (ja) 1989-08-11 1989-08-11

Publications (2)

Publication Number Publication Date
JPH0335865U true JPH0335865U (ja) 1991-04-08
JPH0542946Y2 JPH0542946Y2 (ja) 1993-10-28

Family

ID=14123197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989094911U Expired - Lifetime JPH0542946Y2 (ja) 1989-08-11 1989-08-11

Country Status (4)

Country Link
US (1) US5083496A (ja)
JP (1) JPH0542946Y2 (ja)
KR (1) KR920006887Y1 (ja)
AU (1) AU618902B2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008114842A (ja) * 2006-11-02 2008-05-22 Robert Bosch Gmbh タンデム空気圧ブレーキブースター
JP2009149215A (ja) * 2007-12-21 2009-07-09 Daicel Chem Ind Ltd ガス発生器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355771A (en) * 1992-08-28 1994-10-18 Jidosha Kiki Co., Ltd. Valve mechanism for brake booster
US5323689A (en) * 1992-09-24 1994-06-28 Allied-Signal Inc. Method of manufacturing a tandem brake booster
JP2962341B2 (ja) * 1993-10-08 1999-10-12 自動車機器株式会社 倍力装置のパワーピストン組立体
JP5738256B2 (ja) * 2012-10-12 2015-06-17 日信工業株式会社 負圧ブースタ

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549818A (en) * 1945-08-23 1951-04-24 Joseph F Joy Sealing device
US3958497A (en) * 1973-07-30 1976-05-25 The Bendix Corporation Wall means for a servomotor
JPS5323913A (en) * 1976-08-13 1978-03-06 Fuso Kagaku Kogyo Method of producing aldehyde
JPS6114924Y2 (ja) * 1977-11-08 1986-05-09
JPS56120443A (en) * 1980-02-27 1981-09-21 Aisin Seiki Co Ltd Brake booster for automobile
JPS5746206A (en) * 1980-09-05 1982-03-16 Nippon Telegr & Teleph Corp <Ntt> Compound optical fiber
US4512237A (en) * 1982-01-16 1985-04-23 Jidosha Kiki Co., Ltd. Tandem type brake power servo booster
US4534270A (en) * 1982-12-01 1985-08-13 Aisin Seiki Kabushiki Kaisha Vacuum booster assembly
JPS60108582U (ja) * 1983-12-28 1985-07-23 自動車機器株式会社 ブレ−キ倍力装置
JPS60154952A (ja) * 1984-01-21 1985-08-14 Jidosha Kiki Co Ltd タンデムブレ−キ倍力装置
JPH0433181Y2 (ja) * 1986-11-10 1992-08-10
US4881452A (en) * 1987-09-03 1989-11-21 General Motors Corporation Tandem vacuum booster and diaphragm for same
JPH0169068U (ja) * 1987-10-28 1989-05-08
EP0327997B1 (de) * 1988-02-05 1993-06-30 LUCAS INDUSTRIES public limited company Pneumatischer Kraftverstärker in Tandembauweise, insbesondere für hydraulische Fahrzeug-Bremsanlagen
US4984507A (en) * 1988-07-26 1991-01-15 Jidosha Kiki Co., Ltd. Three chamber brake booster with variable pressure passages having a minimum channel length
US4898081A (en) * 1988-08-31 1990-02-06 Allied-Signal Inc. One Piece rear seal for servomotor
JP2650213B2 (ja) * 1988-12-15 1997-09-03 自動車機器株式会社 負圧倍力装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008114842A (ja) * 2006-11-02 2008-05-22 Robert Bosch Gmbh タンデム空気圧ブレーキブースター
JP2009149215A (ja) * 2007-12-21 2009-07-09 Daicel Chem Ind Ltd ガス発生器

Also Published As

Publication number Publication date
KR920006887Y1 (ko) 1992-09-28
AU618902B2 (en) 1992-01-09
KR910004267U (ko) 1991-03-18
JPH0542946Y2 (ja) 1993-10-28
AU5754590A (en) 1991-02-14
US5083496A (en) 1992-01-28

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