Spring devices – Vehicle – Comprising compressible fluid
Patent
1997-05-27
1999-11-23
Oberleitner, Robert J.
Spring devices
Vehicle
Comprising compressible fluid
267218, 280 5514, 280124161, 280DIG1, F16F 500, B60G 1300, B60G 700
Patent
active
059886072
ABSTRACT:
A self-pumping hydropneumatic strut with an internal level control, especially for automobiles, has a power cylinder. The power cylinder is under the pressure of at least one gas pad acting as a spring. The gas pad is placed in a high-pressure chamber, which high-pressure chamber is filled with damping agents. The power cylinder is divided into two working chambers by a working piston. The working piston is carried by a hollow piston rod and is equipped with valves. A piston pump is driven by the spring motion and transports oil from a low-pressure chamber into the working chamber. The working chamber is connected to the high-pressure chamber. The piston pump includes a pump chamber formed by the hollow piston rod and a pump rod that is connected to the power cylinder. The damping agent in the pump chamber can be pressure-impacted by a driving element.
REFERENCES:
patent: 3087743 (1963-04-01), Behles
patent: 3951392 (1976-04-01), De La Faille
patent: 4502672 (1985-03-01), Meller et al.
patent: 4883150 (1989-11-01), Arai
patent: 5009400 (1991-04-01), Ott
patent: 5062616 (1991-11-01), Sommer
Fichtel & Sachs AG
Oberleitner Robert J.
Woller Jeffrey
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