Brakes – Internal-resistance motion retarder – With means compensating for change in temperature or viscosity
Patent
1987-02-17
1989-01-24
Kashnikow, Andres
Brakes
Internal-resistance motion retarder
With means compensating for change in temperature or viscosity
188299, 236 68R, 251 11, F16F 952, F16F 946, G05D 1500, F16K 3100
Patent
active
047995777
ABSTRACT:
A telescopic hydraulic shock absorber with controlled damping comprising a cylinder (1), within which a piston (6) connected to the end of a rod (7) can reciprocate, the piston having at least one restricted passage (12) interacting with an elastic flap (13), an additional passage (16, 17) capable of being closed to a greater or lesser extent by a remote-controlled shut-off (18), to allow the hydraulic fluid to pass from one side of the piston to the other during the movement of the latter within the cylinder, wherein the movement of the shut-off (18) is controlled via an actuating member (21) comprising an active element comprised of a metallic memorizing material capable of changing its size at a predetermined conversion temperature.
REFERENCES:
patent: 2881869 (1959-04-01), Yarrick
patent: 2899023 (1959-08-01), Rumsey
patent: 3958672 (1976-05-01), Keilholz
patent: 4372486 (1983-02-01), Tomioka et al.
patent: 4673067 (1987-06-01), Munning et al.
patent: 4674398 (1987-06-01), Taylor
Kashnikow Andres
Oberleitner Robert J.
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