| 摘要 |
<p>Provided is a fuel conveying pipe suitable for a steel fuel conveying pipe which connects a high-pressure pump and a direct-injection rail in a gasoline direct-injection engine system, and a bypass pipe for connecting direct-injection rails in a V-type gasoline engine, said fuel conveying pipe having high resistance to corrosive fuel and maintaining reliability without impairing the function of a direct-injection engine. A steel fuel conveying pipe for conveying gasoline is characterized in that a nickel-plated layer is provided on the entire inner surface of the fuel conveying pipe, and an anticorrosive film layer produced from a zinc-plated layer or a zinc base alloy-plated layer is provided on the nickel-plated layer at at least one end of the fuel conveying pipe.</p> |
