Spring device

Details Spring device Spring device

1982-06-16

1984-10-30

Reger, Duane A.

Spring devices

Vehicle

Comprising compressible fluid

F16F 919

Patent

active

044796382

ABSTRACT:
A self-activated and load-independent level regulating device for connection between two relatively movable parts includes a pump having a pump chamber and a piston. The pump chamber is connected to one of the parts and the piston, which is operable in the pump chamber, is engageable with the other of the parts such that the relative axial position of the piston in the pump chamber correspond to the relative position between the two parts. An elastically deformable spring chamber containing a hydraulic fluid is disposed between the two parts, and a supply chamber containing a hydraulic fluid supply is also disposed between the two parts. A first passageway is connected between the pump chamber and the supply chamber means, and a first control valve is disposed in the first passageway. A second passageway is connected between the pump chamber and the spring chamber, and a second control valve is disposed in the second passageway, whereby the pump is actuated upon relative movement between the two parts to effect a pumping action of pressure and suction pulses between the supply chamber and the spring chamber via the first and second passageways to thereby provide load-independent, level regulation between the two parts.

REFERENCES:
patent: 3222049 (1965-12-01), Tuczek
patent: 4342446 (1982-08-01), Eaton et al.
patent: 4392639 (1983-07-01), Konishi

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