Pneumatic spring device

Details Pneumatic spring device Pneumatic spring device

1977-06-03

1978-05-30

Halvosa, George E. A.

Spring devices

Vehicle

Comprising compressible fluid

92 94, 138 30, 220 85B, 2223865, 280708, F16F 908

Patent

active

040920178

ABSTRACT:
A diaphragm arranged in a rigid casing to define therein a chamber to be filled with a mass of gaseous spring medium and another chamber to be held under oil pressure load is normally bulged into the oil chamber and formed on both surfaces thereof with dense clusters of elastic piles or projections which are compressed against each other only when the diaphragm is displaced from its neutral position to the load side as the load is reduced. Such displacement of the diaphragm is resisted by the elastic projections so as to increase the spring constant of the device in the lower load region and, with the device, used as a spring for automotive suspension, the pitching and rolling movements of the vehicle body are minimized.

REFERENCES:
patent: 2804884 (1957-09-01), Knox
patent: 3788627 (1974-01-01), Wieland

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