Vehicle suspension damper with remote control
This patent describes a vehicle suspension damper comprising: a pressure cylinder and a piston assembly comprising a piston and piston rod; working fluid within the pressure cylinder; a passageway through the piston for allowing the working fluid to pass from one side of the piston to the other side of the piston; a linearly actuatable valve within the piston for controlling the flow of fluid through the passageway, the valve comprising a double-headed poppet which is force-balanced with respect to the flow of fluid acting upon the valve by the flow of fluid impinging upon the valve urging each poppet of the double-headed poppet in opposite axial directions with equal force; a fluid motor within the piston for controlling the valve, with the motor comprising a pressure responsive rolling diaphragm and a cup-shaped cylindrical piston driven by the rolling diaphragm; and an axial passage through the piston rod for communicating pressure signals from a fluid controller to the fluid motor whereby the damper is able to respond very quickly to signals from the fluid controller because only inertial forces and friction need be overcome to move the valve.
- Assignee:
- Ford Motor Co., Dearborn, MI
- Patent Number(s):
- US 4683992
- OSTI ID:
- 6201654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330601* -- Vehicle Design Factors-- Body & Chassis
CONTROL
CONTROL EQUIPMENT
CYLINDERS
DAMPING
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
FRICTION
MECHANICAL STRUCTURES
MOMENT OF INERTIA
MOTORS
PISTONS
PRESSURE CONTROL
REMOTE CONTROL
SHOCK ABSORBERS
SIGNALS
SUPPORTS
VALVES
VEHICLES
WORKING FLUIDS