Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1978-07-06
1979-11-27
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 40, 303113, B60T 802
Patent
active
041757955
ABSTRACT:
In a fluid-pressure operated anti-skid braking system operation of a brake-applying relay valve is controlled by control pressure in an application chamber. A memory chamber is connected to the application chamber through a one-way valve and an orifice permits pressure in the memory chamber to decay into the application chamber when the pressure in the application chamber reduces. Re-application of the brakes following a skid is controlled by closure of a latch valve which permits only a restricted flow of control pressure into the application chamber. This is sufficient to re-apply the brakes rapidly in a first stage until the pressure in the application chamber becomes equal to that of the decayed pressure in the memory chamber, whereafter brake re-application continues at a slower rate since the restricted flow of control pressure has also to increase the pressure in the memory chamber.
REFERENCES:
patent: 3857614 (1974-12-01), Kurichh
patent: 3929383 (1975-12-01), Urban et al.
patent: 3941428 (1976-03-01), Rothwell et al.
patent: 3950035 (1976-04-01), Tribe
Layton Charles T.
Mortimer Ivan
Girling Limited
Reger Duane A.
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