GB838810A - Height control and leveling valve for air springs - Google Patents

Height control and leveling valve for air springs

Info

Publication number
GB838810A
GB838810A GB33650/58A GB3365058A GB838810A GB 838810 A GB838810 A GB 838810A GB 33650/58 A GB33650/58 A GB 33650/58A GB 3365058 A GB3365058 A GB 3365058A GB 838810 A GB838810 A GB 838810A
Authority
GB
United Kingdom
Prior art keywords
valve
vehicle
air
piston
height
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
GB33650/58A
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.)
Bendix Westinghouse Automotive Air Brake Co
Original Assignee
Bendix Westinghouse Automotive Air Brake Co
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 Bendix Westinghouse Automotive Air Brake Co filed Critical Bendix Westinghouse Automotive Air Brake Co
Priority claimed from US76863658 external-priority patent/US2959426A/en
Publication of GB838810A publication Critical patent/GB838810A/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
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/04—Level control, e.g. controlling quantity of material stored in vessel with auxiliary non-electric power
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

838,810. Road vehicle undercarriages. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Oct. 21, 1958 [Dec. 9, 1957], No. 33650/58. Class 108(2) An air spring 11 may be controlled by a levelling valve 10 to maintain the vehicle 14 at more than one selected height. For regulation at the normal height the parts of the valve 10 are as shown in Fig. 3. A lever 18 connected at its outer end to the axle, carries an eccentrically disposed roller 84 at its pivotally mounted inner end. The roller 84 has a cam-like relation with a slot 82 in an upper portion 62 of a stepped piston 62, 64. The latter is urged by a spring 65 into engagement with the end of a cavity 52 in a piston 54 which carries a valve member 50. When vehicle load increases, the lever 18 rises, and thus lifts the valve member 50. This lifts a valve 46 from its seat and permits air flow from the reservoir 22 (Fig. 1) to flow via inlet 26, non-return valve 42 and annular chamber 47 in the member 50, to the outlet 12 leading to the air spring. On decreasing of vehicle load, the valve member 50 is lowered and air passes from the air spring via outlet 12 and passage 51 in the member 50, to exhaust to atmosphere at 53. To select a greater height for the vehicle, a valve 28 is reset from a position in which a conduit 32a leading from the base of the valve 10 is connected to amosphere at 34, to a position in which the conduit 32a is connected to the reservoir 22. Pressure air is thus applied to a cavity 78 between the pistons 62 and 84. This forces up the piston 54 and so lifts the valve 46. As air flows to the springs and the vehicle rises, the lever 18 is thereby turned and the piston 64 is accordingly lowered. The valve member 50 and valve 46 are thus brought into closed positions corresponding to equilibrium being attained at the new vehicle height.
GB33650/58A 1957-12-09 1958-10-21 Height control and leveling valve for air springs Expired GB838810A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US838810XA 1957-12-09 1957-12-09
US76863658 US2959426A (en) 1958-10-21 1958-10-21 Multiple range control valve for air spring

Publications (1)

Publication Number Publication Date
GB838810A true GB838810A (en) 1960-06-22

Family

ID=26769845

Family Applications (2)

Application Number Title Priority Date Filing Date
GB33650/58A Expired GB838810A (en) 1957-12-09 1958-10-21 Height control and leveling valve for air springs
GB15907/59A Expired GB869772A (en) 1957-12-09 1959-05-08 Air spring control valve

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB15907/59A Expired GB869772A (en) 1957-12-09 1959-05-08 Air spring control valve

Country Status (3)

Country Link
DE (2) DE1112910B (en)
FR (1) FR1215927A (en)
GB (2) GB838810A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2177382A1 (en) * 2008-10-14 2010-04-21 WABCO GmbH Valve assembly with a primary and secondary seat valve and valve device with such a valve assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525763A1 (en) * 1975-06-10 1976-12-16 Brumme Kg Effbe Werk CONTROL VALVE
DE3410560A1 (en) * 1984-03-22 1985-09-26 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Device for the zero point adjustment of a load-dependent level control of a vehicle with pneumatic suspension
US5375819A (en) * 1992-11-10 1994-12-27 Nai Neway, Inc. Dual in-line height control valve assembly
US5787932A (en) * 1992-11-10 1998-08-04 Nai Neway, Inc. Bypass tube for time delay height control valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016573B (en) * 1955-01-12 1957-09-26 Siam Pneumatic, oil-pneumatic or hydraulic suspension for motor vehicles
US2787475A (en) * 1955-08-30 1957-04-02 Gen Motors Corp Load controlled valve assembly for vehicle air spring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2177382A1 (en) * 2008-10-14 2010-04-21 WABCO GmbH Valve assembly with a primary and secondary seat valve and valve device with such a valve assembly

Also Published As

Publication number Publication date
DE1112910B (en) 1961-08-17
FR1215927A (en) 1960-04-21
GB869772A (en) 1961-06-07
DE1130714B (en) 1962-05-30

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