Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1987-08-13
1989-04-18
Halvosa, George E. A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303DIG2, 303112, 36442602, B60T 858
Patent
active
048221139
ABSTRACT:
A system for controlling the torque developed by a fluid actuated brake as it slows an aircraft wheel. In one embodiment, the system includes a strain gauge (62) for sensing the load applied to a brake metering valve (16). In another embodiment, the pressure of the hydraulic fluid output from the brake metering valve is sensed by a pressure transducer (42). Depending upon the sensor used, the system is operative to control the pressure applied to a brake assembly (54) of an aircraft as a function of the mechanical load or pressure. The system includes a torque control (50,120) connected to control one or more valves (22, or 83 and 102), modulating the pressure of hydraulic fluid applied to the brake assembly; the valves may be part of an antiskid control system. A torque sensor (46) is disposed on a torque reaction arm (36) and produces a signal indicative of the torque developed by the brake assembly. The torque control reduces the pressure of the hydraulic fluid applied to the brake assembly if the torque produced by the brake exceeds a value determined as a function of the magnitude of the force applied to actuate the brake.
REFERENCES:
patent: 2781871 (1957-02-01), Altekruse
patent: 3520575 (1970-07-01), Steigerwald
patent: 3711162 (1973-01-01), Steinbrenner et al.
patent: 3790225 (1974-02-01), Wehde
patent: 3802745 (1974-04-01), Strifler et al.
patent: 3825308 (1974-07-01), Kasselmann et al.
patent: 4043607 (1977-08-01), Signorelli et al.
patent: 4323969 (1982-04-01), Skarvada
patent: 4336592 (1982-06-01), Beck
patent: 4402478 (1983-09-01), Martin
patent: 4412291 (1983-10-01), Amberg et al.
patent: 4428620 (1984-01-01), Warwick et al.
patent: 4430703 (1984-02-01), Saumweber et al.
patent: 4430715 (1985-01-01), Gentet et al.
patent: 4494199 (1985-01-01), Lehmann
patent: 4550372 (1985-10-01), Kahrs
Amberg Robert L.
Valaas Andrew M.
Halvosa George E. A.
Le Mark T.
The Boeing Company
LandOfFree
Braking torque control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Braking torque control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Braking torque control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2393069