Pilot regulator

Details Pilot regulator Pilot regulator

F - Mech Eng,Light,Heat,Weapons

16

K

137/106

F16K 7/07 (2006.01) G05D 16/06 (2006.01)

Patent

CA 1040507

PILOT REGULATOR Abstract of the Disclosure A pilot regulator for pressure regulation servo-control of a valve in a compressible fluid system includes a delay arrangement for achieving both rapid response and stable opera- tion. The regulator includes a restrictor for supplying fluid from the main valve inlet to a control chamber, and a pilot valve for exhausting fluid from the control chamber. A diaphragm assembly for operating the pilot valve is biased in one direction by a reference force or pressure and in the opposite direction by the static pressure to be regulated. The control chamber and a delay chamber, in adjustable restricted communication with the control chamber, bias the diaphragm assembly in opposite directions. When static pressure change causes movement of the diaphragm assembly and opening or closing of the pilot valve, the difference in control pressure with respect to delay pressure permits limited abrupt movement of the diaphragm assembly, and provides a gradual continued reset movement.

272013

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