GB926265A - Improvements in and relating to pneumatically operated levelling valves for air suspension systems - Google Patents

Improvements in and relating to pneumatically operated levelling valves for air suspension systems

Info

Publication number
GB926265A
GB926265A GB4148060A GB4148060A GB926265A GB 926265 A GB926265 A GB 926265A GB 4148060 A GB4148060 A GB 4148060A GB 4148060 A GB4148060 A GB 4148060A GB 926265 A GB926265 A GB 926265A
Authority
GB
United Kingdom
Prior art keywords
valve
diaphragm
air
lever
piston
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
GB4148060A
Inventor
John Herbert Mason
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB4148060A priority Critical patent/GB926265A/en
Publication of GB926265A publication Critical patent/GB926265A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

926,265. Fluid-pressure servomotor control systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 8, 1961 [Dec. 2, 1960], No. 41480/60. Class 135. [Also in Group XXXII] In a levelling valve for the air springs of a vehicle a lever 2 connected to the vehicle axle engages a piston 7 which actuates spring- loaded valves 10, 11, controlling air flow to opposite sides of a diaphragm 12 connected to a rod 15 co-operating with a spring-loaded disc valve 29 to control air flow to and from the air springs. When the axle deflects the lever 2 displaces the piston 7 which separates from one of the valves 10, 11 and lifts the other thereby connecting one side of the diaphragm 12 to exhaust through a passage 8 in the piston 7 and permitting air supplied by an inlet 31 through a check valve 28 arid a passage 32 restricted by choke screws 35, 36 to pressurize the other side of the diaphragm 12. During rapid displacements of the lever 2 resulting from road shocks the choke screws 35, 36 ensure that insufficient air is supplied to the diaphragm 12 to actuate the valve 29, but during slow displacements of the lever 2 resulting from changes in vehicle load the rod 15 is either displaced upwardly to open the valve 29 to supply air to the springs via an outlet 38 or downwardly to separate from the valve 29 to exhaust the springs through an axial passage 25 in the rod 15. A sealed piston may be substituted for the diaphragm 12.
GB4148060A 1960-12-02 1960-12-02 Improvements in and relating to pneumatically operated levelling valves for air suspension systems Expired GB926265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4148060A GB926265A (en) 1960-12-02 1960-12-02 Improvements in and relating to pneumatically operated levelling valves for air suspension systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4148060A GB926265A (en) 1960-12-02 1960-12-02 Improvements in and relating to pneumatically operated levelling valves for air suspension systems

Publications (1)

Publication Number Publication Date
GB926265A true GB926265A (en) 1963-05-15

Family

ID=10419875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4148060A Expired GB926265A (en) 1960-12-02 1960-12-02 Improvements in and relating to pneumatically operated levelling valves for air suspension systems

Country Status (1)

Country Link
GB (1) GB926265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2318535A1 (en) * 1973-04-12 1974-10-31 Knorr Bremse Gmbh AIR SUSPENSION VALVE FOR VEHICLES, ESPECIALLY FOR CONTAINER VEHICLES
GB2184263A (en) * 1984-07-25 1987-06-17 Kenneth Stanley Dufour Spool type valve controller for a pneumatic guiding system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2318535A1 (en) * 1973-04-12 1974-10-31 Knorr Bremse Gmbh AIR SUSPENSION VALVE FOR VEHICLES, ESPECIALLY FOR CONTAINER VEHICLES
GB2184263A (en) * 1984-07-25 1987-06-17 Kenneth Stanley Dufour Spool type valve controller for a pneumatic guiding system

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