GB1450254A - Damped air valves - Google Patents

Damped air valves

Info

Publication number
GB1450254A
GB1450254A GB4588974A GB4588974A GB1450254A GB 1450254 A GB1450254 A GB 1450254A GB 4588974 A GB4588974 A GB 4588974A GB 4588974 A GB4588974 A GB 4588974A GB 1450254 A GB1450254 A GB 1450254A
Authority
GB
United Kingdom
Prior art keywords
vane
damping
air
shaft
chamber
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
Application number
GB4588974A
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.)
Lear Siegler Inc
Original Assignee
Lear Siegler Inc
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 US41046573 external-priority patent/US3858903A/en
Priority claimed from US410466A external-priority patent/US3884454A/en
Application filed by Lear Siegler Inc filed Critical Lear Siegler Inc
Publication of GB1450254A publication Critical patent/GB1450254A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B60G17/0523—Regulating distributors or valves for pneumatic springs
    • B60G17/0525—Height adjusting or levelling valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/202—Height or leveling valve for air-springs
    • B60G2500/2022—Height or leveling valve for air-springs with valve seat actuation for selectively adjusting neutral height

Abstract

1450254 Rotary dampers LEAR SIEGLER Inc 23 Oct 1974 [29 Oct 1973 (2)] 45889/74 Heading F2S [Also in Division B7] In an air suspension levelling valve including an actuator shaft 54 carrying a paddle 52 which actuates valves for controlling the volume of air in an air spring 10 disposed between a vehicle frame 12 and axle 14, a damping vane 80 secured to the shaft 54 is located in a fluid-filled chamber 36 which has portions disposed both above and below the shaft so that the levelling valve can be used one way up on one side of the vehicle and the other way up on the other with no alteration in damping performance. A reservoir cavity 88 communicates through a port 86 with each portion of the damping chamber 36 so that air can escape from the chamber regardless of the orientation of the valve. The vane 80 is dimensioned so that damping fluid can flow only slowly past the vane, by-pass conduits 82, 84 and flap valves 90, 92 being arranged so that movement of the vane away from the central position is damped but return movement is undamped until the vane approaches the central position and obstructs the ports 86. The flap valves 90, 92 are part of a thin metal strip bent into U-shape.
GB4588974A 1973-10-29 1974-10-23 Damped air valves Expired GB1450254A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41046573 US3858903A (en) 1973-10-29 1973-10-29 Air spring system and damped air valve therefor
US410466A US3884454A (en) 1973-10-29 1973-10-29 Air spring system and damped air valve therefor

Publications (1)

Publication Number Publication Date
GB1450254A true GB1450254A (en) 1976-09-22

Family

ID=27021004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4588974A Expired GB1450254A (en) 1973-10-29 1974-10-23 Damped air valves

Country Status (5)

Country Link
JP (1) JPS5731013B2 (en)
CA (1) CA1020179A (en)
DE (1) DE2448382C3 (en)
GB (1) GB1450254A (en)
IT (1) IT1025174B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191157A (en) * 1986-06-07 1987-12-09 Peter John Raffels Control valve with damping means

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726571A (en) * 1986-03-17 1988-02-23 Lear Siegler, Inc. Height control valve with spring return actuator
CN102506112A (en) * 2011-10-17 2012-06-20 杨洁 Air spring capable of adjusting static stiffness and dynamic stiffness in volume occupation and pressure difference classification manners

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191157A (en) * 1986-06-07 1987-12-09 Peter John Raffels Control valve with damping means
GB2191157B (en) * 1986-06-07 1990-05-16 Peter John Raffels Auotomatic hydraulic pressure supply systems.

Also Published As

Publication number Publication date
DE2448382B2 (en) 1977-12-01
DE2448382A1 (en) 1975-05-07
DE2448382C3 (en) 1978-07-13
CA1020179A (en) 1977-11-01
IT1025174B (en) 1978-08-10
JPS50111483A (en) 1975-09-02
JPS5731013B2 (en) 1982-07-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee