Active suspension actuator with real time damping

Details Active suspension actuator with real time damping Active suspension actuator with real time damping

1991-08-22

1993-05-04

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

188318, 18832221, 267 6426, F16F 946

Patent

active

052073017

ABSTRACT:
A piston and rod subassembly is reciprocally mounted in a piston tube subassembly. A transfer tube is concentrically mounted in the rod and is in fluid communication with a pressurized source of fluid. A solenoid valve subassembly provides real time damping of relatively high frequency inputs by opening and closing a bypass channel formed in the actuator. Relatively low frequency inputs are actively controlled as fluid passes to and from the pressurized source of fluid. An outer body tube includes a fluid trapping chamber to prevent leakage from the actuator.

REFERENCES:
patent: 2857157 (1958-10-01), Bonquet
patent: 3011777 (1961-12-01), Stout
patent: 4828229 (1989-05-01), Fannin et al.
patent: 4828230 (1989-05-01), Steger et al.
patent: 4863147 (1989-09-01), Loeber et al.
patent: 4902034 (1990-02-01), Maguran et al.
patent: 4973854 (1990-11-01), Hummel
patent: 5024460 (1991-06-01), Hanson et al.
patent: 5031732 (1991-06-01), Batek et al.

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