Fluid-pressure and analogous brake systems – Multiple systems – Fluid pressure and electric
Patent
1996-09-11
1998-06-02
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Multiple systems
Fluid pressure and electric
303 28, B60T 1368
Patent
active
057589291
ABSTRACT:
A variable capacity electropneumatic control valve using analog electropneumatic supply and release valve to control the control valve output and a relay valves to add extra capacity when the required capacity exceeds that of the analog valves.
REFERENCES:
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patent: 4869557 (1989-09-01), Gerum et al.
patent: 5090780 (1992-02-01), Powell
patent: 5192118 (1993-03-01), Balukin et al.
patent: 5294190 (1994-03-01), Feldman et al.
patent: 5412572 (1995-05-01), Root et al.
Newton Ronald O.
Root Kevin B.
Graham Matthew C.
New York Air Brake Corporation
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