| 摘要 |
An apparatus ( 60 ) for dispensing gas stored in a highly pressurized container ( 61 ) and then refilling the container ( 61 ) with more gas. The apparatus includes a regulator ( 30 ) that in turn includes a first valve assembly ( 5, 6, 7, 8 ) on a first gas flow path to permit the flow of gas from the container ( 61 ) into the regulator ( 30 ) and to maintain a substantially constant output gas pressure or speed, regardless of the internal pressure of the highly pressurized gas container ( 61 ). The regulator ( 30 ) also includes a second valve assembly ( 2, 13, 17, 18, 19 ) on a second gas flow path to refill the container ( 61 ) with highly pressurized gas and to seal the second gas flow path at times when the container ( 61 ) needs not be refilled. The over-pressure relief mechanism ( 9, 10, 11, 12 ) of the regulator ( 30 ) releases gas from the highly pressurized container ( 61 ) in response to a condition where the internal pressure of the container ( 61 ) exceeds one and two thirds of the maximum internal pressure of the container ( 61 ).
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