Shock absorber

Details Shock absorber Shock absorber

1988-03-25

1990-03-06

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

137554, 13762537, 188319, 18832215, 25112915, 251902, 280714, F16F 934

Patent

active

049057987

ABSTRACT:
A shock absorber for use in motor vehicles which includes a piston within a packet, inside the piston the entire quantity of the damping fluid exchanged between two work chambers flows via a throttle cross section the size of which is defined by an electromagnetic adjusting device comprising primarily a magnet coil and an armature. The armature is annular and merges with an annular control slide provided with a slide control edge, which slide, in cooperation with a piston control edge on the piston determines the size of the throttle cross section. The control slide and armature are statically in pressure equilibrium, and because of their annular embodiment they have only a slight weight, so that the shock absorber operates with short adjusting times. By a defined profile of the slide control edge or piston control edge, certain damping characteristics are attainable.

REFERENCES:
patent: 2642254 (1953-06-01), Armstrong
patent: 3147827 (1964-09-01), Weisheit
patent: 3588039 (1971-06-01), Chelminski et al.
patent: 3750693 (1973-08-01), Hardison
patent: 3896834 (1975-07-01), Paul, Jr.
patent: 4198030 (1980-04-01), Jackson et al.
patent: 4471810 (1984-09-01), Muchow et al.
patent: 4638896 (1987-01-01), Poyser
patent: 4723640 (1988-02-01), Beck
patent: 4726453 (1988-02-01), Obstfelder et al.

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