Fluid handling – Systems – Sequentially closing and opening alternately seating flow...
Patent
1991-02-19
1993-04-20
Nilson, Robert G.
Fluid handling
Systems
Sequentially closing and opening alternately seating flow...
251261, F16K 3152
Patent
active
052033759
ABSTRACT:
A leveling valve for the automatic stabilization of the chassis height of a vehicle, especially of a motor vehicle with pneumatic shock absorption, having a valve housing (1) with a spring-loaded double valve body (11), an inlet seat (16) for the double valve body (11), and a hollow valve plunger (25) carrying an outlet seat (26) for the double valve body (1), being movable in the axial direction, and being assigned to a gasket (22) disposed in a groove (21), which may be axially readjusted for the purpose of adjusting the locking position in relation to a supporting element (30) resting on a cam (43) of a shaft (48) that runs transversally to the central axis (2) of the valve plunger (25) and is torsion-proof. The position of the supporting element (30) in relation to the housing (1) may be changed by means of an actuating lever (45) disposed outside of the housing, swiveling and acting on the shaft (38). The housing ( 1) is made of synthetic material and possesses an axially continuous bore hole (3) with a smallest section disposed in the central area and with adjacent stepped sections increasing towards both ends. Further essential structural elements, e.g. the shaft (38) and/or the valve plunger (25) and/or the supporting element (30) etc. consist of synthetic material. The shaft (38) is received in the housing (1) at both sides of the central axis (2) of the valve plunger (25).
REFERENCES:
patent: 2797061 (1957-06-01), Buchanan
patent: 2905462 (1959-09-01), Christensen
patent: 4886092 (1989-12-01), Barzelay
Grau GmbH
Nilson Robert G.
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