| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent fuel from flowing into a fuel injection hole when an engine is stopped, that is, while the fuel injection hole is closed, even in an engine using high-pressure fuel such as liquefied petroleum gas as main fuel. SOLUTION: The fuel injection valve comprises: a nozzle body 3 having the fuel injection hole 31 jetting the fuel into an intake pipe of the engine; and a valve element 2 having a spherical abutting surface 21 seated on a valve seat 4 having an annular seat part 5 formed upstream of the nozzle body 3. The spherical abutting surface is made from fluororubber, and the seat part of the valve seat 4 is made from hard material and is coated with composite plated layer with low frictional property. COPYRIGHT: (C)2008,JPO&INPIT |
