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KR970704125A - 전환밸브 - Google Patents

전환밸브 Download PDF

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Publication number
KR970704125A
KR970704125A KR1019960707156A KR19960707156A KR970704125A KR 970704125 A KR970704125 A KR 970704125A KR 1019960707156 A KR1019960707156 A KR 1019960707156A KR 19960707156 A KR19960707156 A KR 19960707156A KR 970704125 A KR970704125 A KR 970704125A
Authority
KR
South Korea
Prior art keywords
switching valve
valve
center
piston
spool
Prior art date
Application number
KR1019960707156A
Other languages
English (en)
Inventor
보너 울리히
휘델러 빈프리드
Original Assignee
칼-페터 찌이트로우/볼프강 화우스
젯트에프 프리드리히스하펜 아게
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 by 칼-페터 찌이트로우/볼프강 화우스, 젯트에프 프리드리히스하펜 아게 filed Critical 칼-페터 찌이트로우/볼프강 화우스
Publication of KR970704125A publication Critical patent/KR970704125A/ko

Links

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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/14—Control of torque converter lock-up clutches
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0246—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by initiating reverse gearshift
    • 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
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H2059/006—Overriding automatic control
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
    • F16H2061/0253—Details of electro hydraulic valves, e.g. lands, ports, spools or springs
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/122—Avoiding failures by using redundant parts
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1244—Keeping the current state
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
    • F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S477/00—Interrelated power delivery controls, including engine control
    • Y10S477/906—Means detecting or ameliorating the effects of malfunction or potential malfunction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Fluid-Driven Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Transmission Device (AREA)
  • Multiple-Way Valves (AREA)

Abstract

전환밸브는 부하변속기 특히 트랙터의 변속기 주행방향전환을 위하여 감안된 것으로서 이때 하나의 벨브하우싱(1)에 배치되어 있는 밸브스풀(20)은 전진-, 후진- 또는 중립위치로 조정이 가능하다. 밸브스풀(20)은 전기-유압식 장치에 의하여 조정이 가능하다. 밸브하우싱(1) 내에는 센터피스톤(21, 22 또는 210, 220)이 들어 있는데 정상 운전시에는 잡아당겨진 또는 비작동위치에 있는 한편 비상시에는 유압 또는 공압에 의하여 밸브스풀(20)의 정상제어를 피하여 이를 조작함으로 활성화가 가능하다.

Description

전환밸브
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 한가지 유형예의 회로 약도이며,
제2도는 제1 유형예에 대한 제3도의 Ⅱ-Ⅱ선에 따른 단면에서 발명에 따른 전환밸브의 구조형태도이며,
제3도는 제2도의 선Ⅲ-Ⅲ에 의한 전환밸브 통과 단면도이며,
제4도는 제2 유형예의 제5도에서 선 Ⅳ-Ⅳ에 따르는 단면에서 발명한 의한 전환밸브의 구조형태도이며,
제5도는 제2 유형예의 제4도에서 선Ⅴ-Ⅴ에 의한 전환밸브 통과 단면도이다.

Claims (11)

  1. 부하변속기 특히 트랙터변속기의 주행방향 전환을 위한 전환밸브에 있어서, 하나의 밸브하우싱에 배열된 밸브스풀은 전진-, 후진- 또는 중립위치로 조정이 가능한 바 밸브스풀(20)은 전기-유압장치(16, 18)에 의하여 조절이 가능하며 밸브하우싱(1) 내에는 센터피스톤(21, 22 또는 210, 220)이 있어 정상운전시엔 잡아당겨진 또는 비활성화된 위치에 있으며 한편 비상시에는 밸브스풀(20)의 정상조정을 피하여 이들을 조작하도록 유압이나 공압으로 활성화되는 것을 특징으로 하는 전환밸브.
  2. 제1항에 있어서, 전기-유압장치는 자기밸브(16, 18)가 있어 압력도관(17, 19)과 연결이 되어 있으며 밸브스풀(20)의 작동을 위하여 감안되어 있는 것을 특징으로 하는 전환밸브.
  3. 제1항 또는 제2항에 있어서, 센터피스톤(210, 220)은 각각 밸브스풀(20)의 한 저면에 배열되어 있으며 이때 센터피스톤(210, 220)은 초기응력이 가해진 센타스프링(39, 40)에 의하여 밸브스풀(20)을 중간위치(N)로 누르며 이때 센터스프링(39, 40)에 가해진 초기 응력은 밸브스풀(20)의 록킹을 극복할 수 있을 정도의 크기로 선택이 되어 있는 것을 특징으로 하는 전환밸브.
  4. 제1항, 제2항 또는 제3항 중의 어느 하나의 항에 있어서, 센터피스톤(21, 22또는 210, 220)의 가이드에지들은 작동위치 쪽에는 시스템 압력의 기밀이 유지되며 또한측에서 조인트(35)와 (36)내 압력이 떨어질 경우 이러한 조인트의 배출도관(34)에의 결합이 가능한 것을 특징으로 하는 전환밸브.
  5. 제4항에 있어서, 배출도관(34)에는 하나의 교축부가 감안되어 있는 것을 특징으로 하는 전환밸브.
  6. 제1항 내지 제5항 중의 어느 한 항에 있어서, 센터피스톤(21, 22 또는 210, 220)의 작동의 위하여 차량엔진에 의하여 구동되는 한 대의 펌프가 감안되어 있는 것을 특징으로 하는 전환밸브.
  7. 제1항 내지 제6항중의 어느 한 항에 있어서, 하나의 외부 절환밸브(A4)가 감안이 되고 이에 의하여 센터피스톤(21, 22 또는 210, 220)의 외측 또는 스프링측이 압력을 받는 것을 특징으로 하는 전환밸브.
  8. 제1항 내지 제6항중의 어느 한 항에 있어서, 하나의 외부 절환밸브(A4)가 감안이 되고 의하여 센터피스톤(21, 22 또는 210, 220)의 외부측 또는 스프링측이 압력을 받으며 다른 센터피스톤(21, 22 또는 210, 220)은 배출이 될 수 있는 것을 특징으로 하는 전환밸브.
  9. 제8항에 있어서, 절환밸브(44)가 4/3-절환밸브로 구성되는 것을 특징으로 하는 전환밸브.
  10. 제1항 내지 제9항 중의 어느 한 항에 있어서, 외부 중립밸브(45)는 전환밸브(2)에 이르는 압력유입도관(46)의 하나에 감안이 되고 이에의하여 센터피스톤(21, 22 또는 210, 220)의 내측에 작용하는 오일 압력이 차단 가능한것을 특징으로 하는 전환밸브.
  11. 제5항 내지 제10항 중의 어느 한 항에 있어서, 외부 중립밸브(45) 및/또는 절환밸브(44)는 수동이나 또는 전기적으로 조작이 가능한 것을 특징으로 하는 전환밸브.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960707156A 1994-06-16 1995-06-12 전환밸브 KR970704125A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4421115A DE4421115A1 (de) 1994-06-16 1994-06-16 Schaltventil
DEP4421115.5 1994-06-16
PCT/EP1995/002265 WO1995034774A1 (de) 1994-06-16 1995-06-12 Schaltventil

Publications (1)

Publication Number Publication Date
KR970704125A true KR970704125A (ko) 1997-08-09

Family

ID=6520781

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960707156A KR970704125A (ko) 1994-06-16 1995-06-12 전환밸브

Country Status (8)

Country Link
US (1) US5797294A (ko)
EP (1) EP0764247B1 (ko)
JP (1) JPH10502155A (ko)
KR (1) KR970704125A (ko)
AT (1) ATE170961T1 (ko)
BR (1) BR9508004A (ko)
DE (2) DE4421115A1 (ko)
WO (1) WO1995034774A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100302810B1 (ko) * 1999-06-30 2001-09-22 이계안 차량용 전자 공압식 변속기의 변속 제어 방법
DE10032680C1 (de) * 2000-07-05 2001-10-25 Daimler Chrysler Ag Automatikgetriebe mit einer Steuervorrichtung zur Auswahl einer Getriebefahrstufe
DE10230774A1 (de) * 2002-07-09 2004-01-22 Zf Friedrichshafen Ag Steuersystem für ein Anfahrschaltelement eines automatisierten Getriebes oder Automatgetriebes im Notbetrieb
US12163537B1 (en) 2023-10-20 2024-12-10 Hamilton Sundstrand Corporation Three way transfer valve for parallel electrohydraulic servo valve control of actuator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199647A (en) * 1962-08-21 1965-08-10 Minneapolis Moline Inc Control valve means for forward and reverse clutches
US3540556A (en) * 1968-12-05 1970-11-17 Twin Disc Inc Transmission with reversal inhibitor and automatic vehicle speed responsive brake
US3772933A (en) * 1970-10-12 1973-11-20 Ardie Werk Gmbh Means for performing gear changes in multi-ratio gear-boxes
US4046165A (en) * 1975-06-04 1977-09-06 Ibec Industries, Inc. Valve-positioning apparatus
US4041983A (en) * 1975-07-09 1977-08-16 Caterpillar Tractor Co. Pressure controlled swing valve with safety feature
US4871048A (en) * 1987-09-21 1989-10-03 Dresser Industries, Inc. Control system for vehicle transmissions

Also Published As

Publication number Publication date
US5797294A (en) 1998-08-25
EP0764247B1 (de) 1998-09-09
DE4421115A1 (de) 1995-12-21
JPH10502155A (ja) 1998-02-24
WO1995034774A1 (de) 1995-12-21
ATE170961T1 (de) 1998-09-15
BR9508004A (pt) 1997-11-18
DE59503531D1 (de) 1998-10-15
EP0764247A1 (de) 1997-03-26

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PA0105 International application

Patent event date: 19961213

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid