KR890000299A - 유압부우스터 - Google Patents

유압부우스터 Download PDF

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Publication number
KR890000299A
KR890000299A KR1019880007399A KR880007399A KR890000299A KR 890000299 A KR890000299 A KR 890000299A KR 1019880007399 A KR1019880007399 A KR 1019880007399A KR 880007399 A KR880007399 A KR 880007399A KR 890000299 A KR890000299 A KR 890000299A
Authority
KR
South Korea
Prior art keywords
valve
pressure
chamber
power piston
hydraulic
Prior art date
Application number
KR1019880007399A
Other languages
English (en)
Inventor
코지 다카다
요시키 마츠자키
Original Assignee
나카하라 츠네오
스미토모덴기고교 가부시키가이샤
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
Priority claimed from JP62-158705A external-priority patent/JPH011652A/ja
Application filed by 나카하라 츠네오, 스미토모덴기고교 가부시키가이샤 filed Critical 나카하라 츠네오
Publication of KR890000299A publication Critical patent/KR890000299A/ko

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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
    • 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
    • B60T13/12—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 liquid
    • B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/145—Master cylinder integrated or hydraulically coupled with booster
    • 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
    • B60T13/12—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 liquid
    • B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

내용 없음

Description

유압부우스터
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 부우스터 단면도.
제2도는 본 발명에 따른 1실시예의 단면도.
제3도는 본 발명에 따른 2실시예의 단면도이다.

Claims (7)

  1. 부우스터몸체(2)에 직경을 갖추되, 이 직경안에서 축방향으로 미끄럼이동이 가능하도록 끼워 설치된 동력피스톤(1)과, 이 동력 피스톤(1)의 뒷면에서 부우스터 압력을 작용시키는 부우스트체임버(5), 상기 동력피스톤(1)의 뒷면에 설치되되 이 동력피스톤(1)과는 독립하여 축방향으로 이동이 가능한 입력로드(3), 상기동력피스톤(1)의 외주면에 설치된 2개의 밀봉씨―일(7, 8), 이 밀봉씨―일(7, 8)사이와 상기 동력피스톤(1)의 주면과 상기 부우스터몸체(2)의 내면사이에 형성되어 동력원압력을 유입하는 중간유입체임버(6), 이 중간유입체임버(6)와 상기 부우스트체임버(5) 및 압력 강하통로(17)에 연통되어 상기 동력피스톤(1)의 밸브 체임버에 설치되면서 이동부재(4)를 갖춘 밸브메카니즘(4, 14, 15, 16) 및 상기 동력피스톤(10을 원래의 위치로 되돌려 주는 리턴스프링(9)이 갖추어져 있다.
    그리고 상기 동력피스톤(1)과 상기 입력로드(3)가 작동하여 축방향의 상대적 변위에 따라 작동하는 상기 이동부재(40에 의해 상기 밸브메카니즘(4, 14, 15, 16)은 상기 부우스트체임버의 압력(p2)을 내려주거나 올려줄 수 있도록 상기 부우스트체임버(50와 상기 압력강하통로(17)사이의 유압통로와 상기 부우스트체임버(5)와 상기 중간유입체임버(6)사이의 유압통로를 개폐하도록 되고, 동력원압력을 중간유입체임버(6)로 유입하기 위한 연결통로의 개폐를 조절하도록 차동압력조절밸브(30)가 설치되는 바, 이 밸브(30)에는 이 밸브(30)를 개방시키기 위한 방향으로 제1압력이 가해지고 또 이 밸브(30)를 폐쇄시키기 위해 제2압력이 가해지게 된다.
    상기 제1압력은 상기 부우스트체임버(5)의 입력과 스프링압력(pd)과의 합과 동일하고 상기 제2압력은 상기 중간유입체임버(6)내의 압력(p1)과 동일하게 되며 상기 중간유입체임버(6)의 압력(p1)은 항시 어떤 내정된 값만큼 상기 부우스트체임버(5)의 압력보다 높게 유지되도록 된 것을 특징으로 하는 유압부우스터.
  2. 제1항에 있어서, 상기 차동압력조절밸브(30)에는 스푸울밸브(33)과 이 밸브(33)를 밀어주는 스프링(34) 설치된 것을 특징으로 하는 유압부우스터.
  3. 제1항에 있어서, 사이 차동아??조절밸브(30)에는 피스톤(36)과 이 피스톤(36)을 밀어주는 스프링(34) 및 볼밸브(37)가 설치된 것을 특징으로 하는 유압부우스터.
  4. 제1항에 있어서, 상기 밸브메카니즘(4, 14, 15, 16)에는 스푸울밸브(4)가 설치된 것을 특징으로 하는 유압부우스터.
  5. 제1항에 있어서, 상기 밸브메카니즘(4, 14, 15, 16)에는 스푸울밸브(4)가 설치된 것을 특징으로 하는 유압부우스터.
  6. 제1항에 있어서, 상기 밸브메카니즘(4, 14, 15, 16)에는 볼밸브(38)과 스푸울밸브(39)가 설치된 것을 특징으로 하는 유압부우스터.
  7. 제1항에 있어서, 상기 밸브메카니즘(4, 14, 15, 16)에는 볼밸브(38)과 스푸울밸브(39)가 설치된 것을 특징으로 하는 유압부우스터.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880007399A 1987-06-24 1988-06-20 유압부우스터 KR890000299A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-158705A JPH011652A (ja) 1987-06-24 液圧ブ−スタ
JP62-158705 1987-06-24

Publications (1)

Publication Number Publication Date
KR890000299A true KR890000299A (ko) 1989-03-13

Family

ID=15677555

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880007399A KR890000299A (ko) 1987-06-24 1988-06-20 유압부우스터

Country Status (4)

Country Link
US (1) US4850655A (ko)
EP (1) EP0296614B1 (ko)
KR (1) KR890000299A (ko)
DE (1) DE3870992D1 (ko)

Families Citing this family (12)

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US4795770A (en) * 1986-10-01 1989-01-03 Air Products And Chemicals, Inc. Cement composition for oil well drilling holes containing high molecular weight poly (vinylamines)
DE3821730A1 (de) * 1988-06-28 1990-01-11 Daimler Benz Ag Bremsgeraet
IT1233591B (it) * 1989-05-26 1992-04-06 Iveco Fiat Dispositivo attuatore in particolare per l'azionamento dell'innesto a frizione di un autoveicolo
US5150575A (en) * 1991-07-22 1992-09-29 General Motors Corporation Hydraulic brake booster
US5379593A (en) * 1992-11-09 1995-01-10 Nabco Limited Liquid pressure source unit for liquid-operated booster
JPH0834343A (ja) 1994-07-21 1996-02-06 Sumitomo Electric Ind Ltd 液圧ブースタ
US5549361A (en) * 1995-06-02 1996-08-27 Kelsey-Hayes Corporation Electronic-hydraulic brake boost using a power steering supply
US6053582A (en) * 1996-08-14 2000-04-25 Kelsey-Hayes Company Integrated ABS/TC/VSC braking system with separate boost valve
US6415605B1 (en) * 1999-01-14 2002-07-09 Bosch Braking Systems Co., Ltd. Brake system
JP2001050598A (ja) * 2001-02-21 2001-02-23 Mitsubishi Heavy Ind Ltd 自立調整弁及びこれを有する圧縮式冷凍機
JP4186991B2 (ja) 2006-01-31 2008-11-26 トヨタ自動車株式会社 車両用制動装置
FI124349B (en) * 2012-03-09 2014-07-15 Wärtsilä Finland Oy Hydraulic actuator and gas exchange valve arrangement

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US2698205A (en) * 1948-01-27 1954-12-28 Bendix Aviat Corp Control valve
US2757512A (en) * 1953-07-17 1956-08-07 Kenneth S Foreman Hydraulic brake system with hydraulic booster
US2992533A (en) * 1956-06-06 1961-07-18 Dunlop Rubber Co Fluid pressure control mechanism
US2887187A (en) * 1956-11-23 1959-05-19 Deere & Co Power brake system
US3074383A (en) * 1961-09-01 1963-01-22 Bendix Corp Full power hydraulic servomotor
US3515441A (en) * 1969-09-22 1970-06-02 Applied Power Ind Inc Power control device
US3638528A (en) * 1970-06-17 1972-02-01 Bendix Corp Hydraulic boost device with auxiliary fluid supply
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US4284309A (en) * 1979-08-13 1981-08-18 Caterpillar Tractor Co. Brake control valve having operator feedback
JPS56147159U (ko) * 1980-04-08 1981-11-06
US4443040A (en) * 1981-04-23 1984-04-17 Lucas Industries Hydraulic boosters for vehicle braking systems
US4444440A (en) * 1981-04-23 1984-04-24 Lucas Industries Public Limited Company Hydraulic boosters for vehicle braking systems
DE3215737A1 (de) * 1982-04-28 1983-11-03 Robert Bosch Gmbh, 7000 Stuttgart Bremskraftverstaerker
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Also Published As

Publication number Publication date
US4850655A (en) 1989-07-25
DE3870992D1 (de) 1992-06-17
JPS641652A (en) 1989-01-06
EP0296614B1 (en) 1992-05-13
EP0296614A2 (en) 1988-12-28
EP0296614A3 (en) 1989-11-29

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application