Spring devices – Vehicle – Comprising compressible fluid
Patent
1984-07-06
1987-02-17
Butler, Douglas C.
Spring devices
Vehicle
Comprising compressible fluid
267 6424, 267122, 267182, F16F 904, F16F 908, F16N 1500
Patent
active
046434070
ABSTRACT:
A pneumatic spring for motor vehicles comprises a bellows. Adjacent portions of the bellows overlap each other. These adjacent portions are normally maintained at a distance from each other. Under certain conditions the faces touch each other. In such a case, considerable friction and wear occur between adjacent faces. In order to reduce such wear, a lubricant is provided. In order to prohibit undesirable effects of the presence of the lubricant, particularly with respect to the fixation of the bellows to adjacent parts of the pneumatic spring, the lubricant is enclosed and fixed by at least one membrane. This membrane is destroyed only when the faces are pressed against each other.
REFERENCES:
patent: 3043582 (1962-07-01), Hirtreiter
patent: 3157396 (1964-11-01), Long, Jr.
patent: 3373694 (1968-03-01), Taplin
patent: 3627298 (1971-12-01), Gaydecki
patent: 3797816 (1974-03-01), Voss
patent: 4263953 (1981-04-01), Miceli
patent: 4299399 (1981-11-01), Haaland
patent: 4489474 (1984-12-01), Brown et al.
"Pharmazie in unserer Zeit", published by Verlag Chemie GmbH, D-6940 Weinheim, May 1984, pp. 71-82.
Butler Douglas C.
Fichtel & Sachs AG
Ottesen Walter
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