| 摘要 |
PROBLEM TO BE SOLVED: To surely supply fuel to a cylinder even when fuel injected into an intake port in a cylinder head of an engine is adhered to the inside of the intake port. SOLUTION: An auxiliary intake passage 10 diverges from an intake passage 1 of a four-cylinder engine in the upstream of a throttle valve 3. An expansion part 11 of which passage sectional area is increased is provided in a halfway of the auxiliary intake passage 10. The auxiliary intake passage 10 respectively communicates with each intake port 7 formed from the expansion part 11 to the cylinder head 6. An opening of the auxiliary intake passage 10 to each of the intake port 7 is pointed to a poppet reversed side surface 13 and a shaft part 14 of an intake valve 12, respectively. |
