Pneumatic spring for motor vehicles

Details Pneumatic spring for motor vehicles Pneumatic spring for motor vehicles

1978-11-13

1985-01-15

Butler, Douglas C.

Spring devices

Vehicle

Comprising compressible fluid

267 6424, 267 6425, B60G 1126, F16F 300, F16F 904

Patent

active

044934815

ABSTRACT:
A pneumatic spring for motor vehicles which includes two supports as well as closed spring volumes and two spring surfaces of different sizes which surfaces are subjected to pressure in opposite directions and which are variable as a function of road clearance. The surfaces are supported coaxially against one another with the spring volume being formed by two roll bellows defining a common chamber. Effective spring surfaces of the bellows facing away from each other are supported upon spring pistons of different diameters which are connected together. The spring pistons and a casing associated with the roll bellows form the two supports.

REFERENCES:
patent: 2846983 (1958-08-01), Otto
patent: 2933308 (1960-04-01), McGavern et al.
patent: 3025076 (1962-03-01), Davies et al.

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