Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1976-08-12
1978-02-14
Halvosa, George E. A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
B60T 802
Patent
active
040735460
ABSTRACT:
In a fluid pressure-operated anti-skid braking system for rail and other vehicles operating fluid from a supply for actuating a wheel brake is supplied to the brake through a fluid-flow control valve interposed in the line between the supply and the brake. Deceleration responsive sensors responsive to a skid signal are incorporated for operating the valve to relieve the brake pressure of the fluid supplied to the brake when the deceleration of the wheel is excessive and exceeds a predetermined value. The valve incorporates a fluid pressure memory chamber for sensing the skid pressure, and the memory chamber provides a datum or changeover point between first and second successive stages of brake re-application following a skid.
REFERENCES:
patent: 2417211 (1947-03-01), Newell
patent: 3713708 (1973-01-01), Michellone et al.
patent: 3754794 (1973-08-01), Durand
patent: 3837710 (1974-09-01), Reinecke et al.
patent: 3844623 (1974-10-01), Parsons et al.
Girling Limited
Halvosa George E. A.
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