| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas fuel engine which realizes lean combustion by supplying fuel gas into a cylinder in layers. SOLUTION: This gas fuel engine has a first fuel supply stroke in which fuel gas is stored in a intake passage 5 with an intake valve 15 closed, and a second fuel supply stroke in which fuel gas is supplied from a fuel gas jetting port (nozzle 4) near the intake valve 15 into an intake passage 5 in an intake stroke. COPYRIGHT: (C)2003,JPO
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