Controllable vibration damper for motor vehicles

Details Controllable vibration damper for motor vehicles Controllable vibration damper for motor vehicles

1993-12-09

1994-12-27

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

188318, 18832213, F16F 946

Patent

active

053756835

ABSTRACT:
A variable dashpot for motor vehicles. It comprises a vibration-suppressing piston-and-cylinder mechanism. The cylinder contains displacement fluid. The piston divides the cylinder into two displacement compartments. The piston has a piston rod attached to it. The piston is provided with pressure-dependent valves that vary the level of vibration suppression. The vibration-suppression valve system has two vibration-suppressing valves (2) accommodated in alignment in a cylindrical valve housing (1). Each vibration-suppressing valve consists of an axially displaced electromagnetic plunger (5 or 6) that operates in conjunction with at least one outlet (3 or 4) and of at least one pressure-sensitive valve (7 or 8) on stream parallel or in alignment with the plunger.

REFERENCES:
patent: 4650042 (1987-03-01), Knecht et al.
patent: 4802561 (1989-02-01), Knecht et al.
patent: 4960188 (1990-10-01), Wossner
patent: 4986393 (1991-01-01), Preukschat et al.
patent: 5180039 (1993-01-01), Axthammer et al.

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