Hydraulic shock absorber with piston rod position detecting mean

Details Hydraulic shock absorber with piston rod position detecting mean Hydraulic shock absorber with piston rod position detecting mean

1988-03-01

1989-11-28

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Position of thrust member relative to chamber

188 111, 280DIG1, 324208, F16F 948, F16D 6600, G01B 714

Patent

active

048831506

ABSTRACT:
A hydraulic shock absorber is designed not only to support, for example, the body of a vehicle on an axle thereof, but also to adjust the level at which the body of the vehicle is disposed from the ground. The shock absorber has a shock absorber body, a piston axially slidably received in the body, and a piston rod having a hollow portion. The shock absorber further has a rod-shaped member secured at one end thereof to an inner portion of the shock absorber body and the other end thereof received in the hollow portion of the piston rod, and a detector for detecting a relative position of the piston rod and the rod-shaped member, the level detector being accommodated inside the piston rod. Accordingly, it is possible to prevent the occurrence of an erroneous detection and detect the level of the body of a vehicle with a high degree of accuracy.

REFERENCES:
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patent: 2559633 (1951-07-01), Katz
patent: 4017099 (1977-04-01), Hegel et al.
patent: 4095682 (1978-06-01), Ostrowski
patent: 4150299 (1979-04-01), Kasiewicz et al.
patent: 4310172 (1982-01-01), Claude et al.
patent: 4502006 (1985-02-01), Goodwin et al.
patent: 4638670 (1987-01-01), Moser
patent: 4650042 (1987-03-01), Knecht et al.
patent: 4655440 (1987-04-01), Eckert
patent: 4717873 (1988-01-01), Carr et al.
patent: 4726453 (1988-02-01), Obstfelder et al.

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