Title: Hydraulic height-adjustment vehicle suspension

Abstract: Hydraulic height-adjustment vehicle suspension system includes an arrangment for blocking up the suspension and adapted to prevent the collapsing thereof when the vehicle is kept stationary for a prolonged time period. The blocking arrangement includes a buffer member retractable and engageable in the fashion of a chock or the like, between a movable member of the suspension system and a fixed portion of the body or chassis of the vehicle. Preferably, a control for each buffer member includes a hydraulic receiver operating against the force of a return spring urging the buffer member to its retracted position, and a hydraulic chamber is provided which communicates with the receivers and is urged to its hydraulic fluid delivering condition by the actuation of the hand brake control of the vehicle to its brake applying position.

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Inventors: Grosseau, Albert (Paris, FR)

Application Number: 632721
Filing Date: 1975-11-17
Publication_date: 1977-07-05
Assignee: Societe Anonyme Automobiles Citroen (Paris, FR)
Primary Class(es): 180/41 280/6.15
Other Classes:
US Patent Ref:

2694581	Nov, 1954	Helme	180/41.
2706009	Apr, 1955	Schramm	180/41.
3171556	Mar, 1965	Brekelbaum	180/41.
3814200	Jun, 1974	Hirst	180/41.
3829119	Aug, 1972	Kirschner et al.	280/6.

Other Refs:
Primary Examiner: Song, Robert R.
Assistant Examiner: Rubenstein, J. D.
Attorney: Wenderoth, Lind & Ponack