Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-02-05
1991-09-24
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
188181R, 188181C, 303 96, 303103, 303109, 303 68, 303DIG4, 303 93, 244111, 36442602, B60T 832
Patent
active
050509403
ABSTRACT:
A brake and anti-skid control utilizing optical input sensors for determining wheel speed or position and suitable for aircraft use is disclosed. A valve control has a continuous source of pressurized hydraulic fluid, a hydraulically actuated wheel rotation brake device which responds to applied hydraulic pressure to apply a braking force to the wheel to arrest wheel rotation, a low pressure hydraulic fluid return, and a flow control servo valve interconnecting the source, the return, and the braking device for directing fluid from the source to the braking device when in a first state and for directing fluid from the braking device to the return when in a second state. Applied hydraulic pressure is monitored and if that monitored pressure exceeds a command pressure, further fluid from the braking device is diverted to the return.
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Bedford Alan
Carson Curtis L.
Kolberg David A.
Scott David E.
Stefano Carol L.
Allied-Signal Inc.
Butler Douglas C.
Decker Ken C.
Palguta Larry J.
LandOfFree
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