Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1984-12-13
1986-08-19
Reger, Duane A.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
188299, F16F 948
Patent
active
046064400
ABSTRACT:
Variable damping apparatus of the fluid pumping type includes an adjustable valve. The valve comprises a stationary plate having a bleed orifice and one or more additional orifices opening axially therethrough, each said additional orifice including a blowoff valve, and a rotatable plate having a bleed orifice and an additional orifice opening axially therethrough, the rotatable plate being disposed adjacent the stationary plate to vary orifice communication with rotation. As the rotatable plate is rotated in opposite directions with respect to the stationary plate away from a position of full communication between the bleed orifices of said plates, the communication of the additional orifices of the plates is varied in a different manner in each rotational direction for equal degrees of communication between the bleed orifices. A rotational actuator is provided to position the rotatable plate with respect to the stationary plate and thus simultaneously select a bleed orifice opening and a blowoff characteristic in response to a signal derived from sensed road characteristics in an adaptive ride control.
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Buchanan, Jr. Harry C.
Fannin Wayne V.
Watson Byron L.
General Motors Corporation
Reger Duane A.
Sigler Robert M.
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