Spring devices – Vehicle – Comprising compressible fluid
Patent
1984-01-30
1985-07-16
Stoner, Jr., Bruce H.
Spring devices
Vehicle
Comprising compressible fluid
188276, 188283, 188315, 18832214, 18832221, 244104FP, B64C 2560, F16F 952
Patent
active
045291802
ABSTRACT:
A thermally efficient shock absorber comprising a strut housing having an open end and a closed end, a piston including a piston housing and a piston head slideable in the strut housing, and a preselected volume of fluid and gas located in the strut and piston housings. A compensating system is provided coupled to the fluid for maintaining a constant fluid-to-gas volume ratio irrespective of thermal variations and a valve is provided for isolating the compensating system from the fluid. In a particular embodiment of the invention, the compensating system includes a gas compensating chamber and a fluid compensating chamber having a movable separator piston therebetween, the fluid compensating chamber being coupled to the fluid in the strut and piston housings. The gas and fluid compensating chambers are contained within the strut housing separate from the gas and fluid in the strut and piston housings. A position indicator is coupled to the valve for causing the valve to isolate the compensating system from the fluid when the shock absorber is positioned to receive loads.
REFERENCES:
patent: 3469661 (1969-09-01), Hoffmann et al.
patent: 3944197 (1976-03-01), Dachicourt
patent: 3970292 (1976-07-01), Dachicourt et al.
patent: 4004762 (1977-01-01), Jenkins
Diefendorf Richard R.
Menasco Inc.
Stoner Jr. Bruce H.
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