G - Physics – 05 – D
Patent
G - Physics
05
D
303/16, 341/39
G05D 16/20 (2006.01) B60T 13/68 (2006.01) G05B 11/28 (2006.01)
Patent
CA 1121028
Abstract of the Disclosure A pressure regulator has at least one solenoid valve operated by electrical signals connected to a container the actu- al pressure of which is indicated by a pressure electric trans- ducer. A comparator generates a regulation signal which is the difference between the actual pressure and a command pressure signal. A regulator is connected to the comparator for generat- ing a control signal to the solenoid valve in such a manner that the valve member of the solenoid valve is adjustable in a stable manner between intermediate positions within a range between the open and closed positions of the valve such that throttled pres- sure media continuously flows through the valve. The valve ad- justment signal can be a continuously variable direct voltage which is proportional to the output signal of the regulator and may be a rectangular or saw-toothed voltage with a frequency ex- ceeding the maximum actuating frequency of the solenoid valve. The regulator has an integral function and is preferably a pro- portional integral regulator. The container may be provided with both inlet and outlet valves for control of the pressure in the container and the regulator produces separate control signals for the inlet and outlet valves.
323583
Kessel Gerd
Kummeke Heinrich
Kupfer Hans-Jurgen
Rau Joachim
Gowling Lafleur Henderson Llp
Knorr-Bremse G.m.b.h.
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