PRESSURE REDUCING VALVE AND PRESSURE REGULATING DEVICE
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United States of America Patent
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Issued Date -
Sep 10, 2015
app pub date -
Mar 4, 2015
filing date -
Mar 7, 2014
priority date (Note) -
Abandoned
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Abstract
A pressure reducing valve includes a diaphragm substrate, a piezo-electric device, and a valve seat. The diaphragm substrate is arranged in a pressure regulating chamber into which CNG flows through an inflow passage. When the piezo-electric device is driven, the diaphragm substrate is deformed. The diaphragm substrate is seated on the valve seat. A portion of the valve seat that faces the diaphragm substrate is formed of an elastic material, and has elastic force greater than that of the diaphragm substrate.
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