Compressed gas tank filling system with improved valve
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United States of America Patent
Stats
-
Jul 11, 1995
Grant Date -
N/A
app pub date -
Aug 12, 1993
filing date -
Aug 12, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic filling system for a compressed gas tank includes a controller that measures the rate of fill of a tank being filled in order to provide an accurate estimate of the fill time for the tank, given available source pressure. Compressed gas flow is controlled with on/off valves that are driven open by a motor/gearbox/clutch combination to reduce thermal and physical shocks associated with opening of the valve. Whenever power is removed from the clutch, a spring automatically drives the valves closed quickly to provide fail-safe operation.
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