Shock absorber with damping valve structure having wide range va

Details Shock absorber with damping valve structure having wide range va Shock absorber with damping valve structure having wide range va

1993-06-01

1994-03-15

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

188299, 18832215, F16F 934

Patent

active

052939715

ABSTRACT:
A variable damping characteristics shock absorber includes a piston provided with first and second disc valves. Within a piston, an annular space is defined between the first and second disc valves. The annular space is selectively communicated with upper and lower fluid chambers defined in a shock absorber cylinder tube via a by-pass path. A variable orifice formed by means of a rotary valve is provided in the by-pass path.

REFERENCES:
patent: 4615420 (1986-10-01), Mouriay
patent: 4660689 (1987-04-01), Hayashi
patent: 4671392 (1987-06-01), Wossner
patent: 4826207 (1989-05-01), Yoshioka et al.
patent: 4953671 (1990-09-01), Imaizumi
patent: 4964493 (1990-10-01), Yamaura et al.
patent: 5044474 (1991-09-01), de Kock
patent: 5193655 (1993-03-01), Sasaki et al.

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