Shock absorber including thermostatically controlled fluid flow

Details Shock absorber including thermostatically controlled fluid flow Shock absorber including thermostatically controlled fluid flow

1980-12-08

1983-01-25

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

With means compensating for change in temperature or viscosity

236101R, F16F 952

Patent

active

043698646

ABSTRACT:
A hydraulic shock absorber includes a split ring surrounding the piston head and being mounted thereon so as to maintain a slight radial play between the ring and the shock absorber casing, and to maintain a slight longitudinal play between the ring and the piston head. Radially extending flanges on the piston head support the ring in place in a longitudinal direction. A longitudinal channel defining a flow passage for the hydraulic oil between opposite sides of the piston head is defined by a space between opposed free ends of the ring and between the inner wall of the casing and the periphery of the piston head. The ring is capable of expanding under elevated temperatures to an extent causing the space between the free ends thereof to vary so as to change the size of the passage and to control the dampening effect.

REFERENCES:
patent: 2087426 (1937-07-01), Bechereau et al.
patent: 2196436 (1940-04-01), Briggs
patent: 2719612 (1955-10-01), De Previnquieres
patent: 2821268 (1958-01-01), de Carbon
patent: 3088555 (1963-05-01), Karlgaard
patent: 3104552 (1963-09-01), Bouchard
patent: 3722640 (1973-03-01), Taylor
patent: 3844389 (1974-10-01), de Carbon
patent: 4048905 (1977-09-01), Souslin
patent: 4132395 (1979-01-01), Fox, Jr.

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