| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steel fuel pressure-feeding pipe which connects a high-pressure pump and a direct injection rail in a direct gasoline injection system, and which has high resistance to corrosive fuel and maintains reliability without impairing the function of a direct injection engine, and to provide a steel fuel pressure-feeding pipe which is suitable as a pipe for bypass piping connecting the direct injection rails with each other in a V-type gasoline engine. <P>SOLUTION: The steel fuel pressure-feeding pipe for pressure-feeding gasoline is constructed by forming a Ni plated layer on the entire inner peripheral surface of the fuel pressure-feeding pipe and a rust-proof film made of a Zn plated layer or a Zn-based alloy plated layer on the Ni plated layer at least one end of the fuel pressure-feeding pipe. <P>COPYRIGHT: (C)2012,JPO&INPIT |
