Pressure-reducing regulator for compressed natural gas
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United States of America Patent
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-
Feb 15, 1994
Grant Date -
N/A
app pub date -
Feb 11, 1993
filing date -
Feb 11, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The valving element is positively tied to the diaphragm, through a diaphragm-carried insert which has a flow-accommodating groove formed therein to facilitate instant outlet pressure following a gas supply shut off. Too, the valving element cooperates with internal structures to define spaced apart seating and sealing areas which boundary between high and low pressures of the natural gas, and the magnitudes and directions of the differential pressures are balanced at the seating and sealing areas, and maintained in balance regardless of how inlet and outlet gas pressures vary.
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