G - Physics – 05 – D
Patent
G - Physics
05
D
137/44
G05D 16/06 (2006.01) G05D 16/16 (2006.01)
Patent
CA 1087067
ABSTRACT A relay pilot regulator for use in combination with a main regulator in a gas distribution system, the gas distribution system including an inlet conduit supplying gas at an inlet pressure and an outlet conduit for delivering gas at a reduced outlet pressure, the main regulator including a main valve controlling gas flow from the inlet conduit to the outlet conduit and thereby also controlling the outlet pressure, a main regulator diaphragm mechanically linked to the main valve and a loading chamber the loading pressure in which acts on the main regulator diaphragm wherein the loading pressure positions the main regulator diaphragm and the main valve, the relay pilot regulator providing and controlling the loading pressure in the loading chamber. The relay pilot regulator includes a relay pilot regulator diaphragm adjustably spring biased against the outlet pressure for movement in response to changes therein, and is characterized by a slideably mounted unloading valve for bleeding pressure from the loading chamber and a loading valve slideably mounted to the unloading valve for controlling delivery of gas at the inlet pressure to the loading chamber. The unloading valve and loading valve share the same mechanical linkage, which is preferably a pivotally mounted L-shaped lever linkage connecting the loading valve and unloading valve to the relay pilot regulator diaphragm. The relay pilot regulator has quick response to changes in the outlet pressure and acts to adjust the loading pressure to restore the outlet pressure to a given desired level.
310100
Smart & Biggar
Textron Inc.
LandOfFree
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