| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas fuel engine capable of continuously operating even in the case of conducting maintenance of a booster. SOLUTION: In the gas fuel engine formed in such a constitution that fuel gas boosted up by the booster 4 is injected and supplied from a supercharger 3 to an intake passage 2 or a cylinder chamber 1a, an axially supplying means B for supplying fuel gas before pressure is boosted up by the booster 4 to an intake passage disposed upstream the supercharger 3 is arranged freely to convert a fuel supplying condition into a supplying action condition and a stop condition.
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