CA1313686C - Load dependent valve for railway vehicles - Google Patents

Load dependent valve for railway vehicles

Info

Publication number
CA1313686C
CA1313686C CA000587108A CA587108A CA1313686C CA 1313686 C CA1313686 C CA 1313686C CA 000587108 A CA000587108 A CA 000587108A CA 587108 A CA587108 A CA 587108A CA 1313686 C CA1313686 C CA 1313686C
Authority
CA
Canada
Prior art keywords
valve
spring
piston
air supply
air
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.)
Expired - Fee Related
Application number
CA000587108A
Other languages
English (en)
French (fr)
Inventor
Hideo Tamamori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabco Ltd
Original Assignee
Nabco Ltd
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 Nabco Ltd filed Critical Nabco Ltd
Application granted granted Critical
Publication of CA1313686C publication Critical patent/CA1313686C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1893—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution especially adapted for railway vehicles
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1812—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the means for pressure reduction
    • B60T8/1825—Means for changing the diaphragm area submitted to pressure
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1837—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the load-detecting arrangements
    • B60T8/1843—Arrangements for detecting air spring pressure
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2409—With counter-balancing pressure feedback to the modulating device
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86919—Sequentially closing and opening alternately seating flow controllers
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
CA000587108A 1987-12-29 1988-12-28 Load dependent valve for railway vehicles Expired - Fee Related CA1313686C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPU62-201557 1987-12-29
JP1987201557U JPH01104853U (US08087162-20120103-C00010.png) 1987-12-29 1987-12-29

Publications (1)

Publication Number Publication Date
CA1313686C true CA1313686C (en) 1993-02-16

Family

ID=16443024

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000587108A Expired - Fee Related CA1313686C (en) 1987-12-29 1988-12-28 Load dependent valve for railway vehicles

Country Status (3)

Country Link
US (1) US4917148A (US08087162-20120103-C00010.png)
JP (1) JPH01104853U (US08087162-20120103-C00010.png)
CA (1) CA1313686C (US08087162-20120103-C00010.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0457478U (US08087162-20120103-C00010.png) * 1990-09-26 1992-05-18
JP2506155Y2 (ja) * 1990-09-26 1996-08-07 株式会社ナブコ 圧力制御弁
US6171081B1 (en) * 1998-02-17 2001-01-09 Keihin Corporation Fuel pump assembly
US6666528B1 (en) * 2002-08-28 2003-12-23 New York Air Brake Corporation Empty load device
CN106051213B (zh) * 2016-07-27 2018-01-30 眉山中车制动科技股份有限公司 一种铁路车辆用缓解调整阀
CN106352124B (zh) * 2016-08-30 2018-10-12 宁波亚德客自动化工业有限公司 定压阀
US10578221B2 (en) * 2016-10-11 2020-03-03 Precision Planting Llc Flow divider
JP7141866B2 (ja) * 2018-06-25 2022-09-26 ナブテスコ株式会社 圧力制御弁

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958337A (en) * 1956-12-28 1960-11-01 Westinghouse Air Brake Co Fluid pressure regulating valve device for supplying graduated delivery pressure according to the supply pressure
US3018136A (en) * 1960-03-21 1962-01-23 Power Brake Equipment Company Adjustable differential air pressure relay
JPS5336099B2 (US08087162-20120103-C00010.png) * 1974-03-01 1978-09-30
US4480663A (en) * 1982-09-13 1984-11-06 Wabco Fahrzeugbremsen Gmbh Pneumatic relay valve
JPS59212582A (ja) * 1983-05-19 1984-12-01 アメリカン・スタンダ−ド・インコ−ポレイテツド 可調整型応荷弁
US4724859A (en) * 1986-12-09 1988-02-16 Nippon Air Brake Co., Ltd. Self-lapping type valve device

Also Published As

Publication number Publication date
US4917148A (en) 1990-04-17
JPH01104853U (US08087162-20120103-C00010.png) 1989-07-14

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Legal Events

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