| 摘要 |
PURPOSE:To enable to feed liquid-fuel into a combustion chamber promptly by collecting the liquid fuel flowing on a bottom wall surface, by a method wherein a hollowed part is formed on about the central part of the bottom wall surface of a suction port and a slanting bottom wall surface part is made to slant toward the hollowed part. CONSTITUTION:A lower wall surface 21 of an inlet duct part 6 is horizontal in the vicinity of an inlet opening. A bottom wall surface part 21a adjoining to a side wall surface 17 forms a slant surface by rising as it approaches to a vortex part. A tilting angle of the bottom wall surface part 21a becomes large gradually as it approaches to the vortex part. The above tilting bottom wall surface part 21a is slanted toward a hollowed part 36 formed on about the central part of the bottom wall surface 21 and the hollowed part 36 is extended to a cylindrical outlet throat 37 formed around a beveled part of a suction valve 5. Liquid fuel flowing above the tilting bottom wall surface 21a is collected within the hollowed part 36, the collected liquid fuel flows within a cylindrical outlet throat 37 and is fed into the combustion chamber. |
