Spring devices – Vehicle – Comprising compressible fluid
Patent
1975-01-20
1976-11-23
Tollberg, Stanley H.
Spring devices
Vehicle
Comprising compressible fluid
267116, 293 85, 293DIG2, 213223, 188269, 188314, F16F 906
Patent
active
039932940
ABSTRACT:
A hydropneumatic shock absorber for use between a bumper and the chassis of a motor vehicle has a cylinder and a plunger guided in the cylinder by the radially enlarged inner end portion of the plunger and by an annular sealing assembly which axially bound a gap radially defined by respective walls of the cylinder and plunger. The sealing assembly includes a rigid guide ring axially secured on the plunger, a resilient sealing ring, and a backing ring of intermediate hardness axially interposed between the guide ring and the sealing ring. The hollow interior of the plunger is partly filled with a compressed gas and partly by liquid which also occupies the cylinder chamber outwardly closed by the plunger, a throttling passage in a closing disc which is an end wall of the plunger, and the remainder of the hollow plunger interior, the liquid being separated from the compressed gas by a floating partition in the plunger.
REFERENCES:
patent: 3019029 (1962-01-01), Sampietro
patent: 3139989 (1964-07-01), Thornhill
patent: 3656632 (1972-04-01), Karakashian et al.
patent: 3700273 (1972-10-01), Jackson et al.
patent: 3774895 (1973-11-01), Willich et al.
patent: 3804216 (1974-04-01), Katsumori et al.
patent: 3833248 (1974-09-01), Wossner et al.
patent: 3889994 (1975-06-01), Edwards
Schmitt German
Wossner Felix
Berman Hans
Fichtel & Sachs A.G.
Kelman Kurt
Marmor Charles A.
Tollberg Stanley H.
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