PIPING FOR FUEL-RETURN PIPE

摘要

PROBLEM TO BE SOLVED: To provide piping for a fuel-return pipe from a fuel injection nozzle and a fuel filter without affection on an injection performance of the fuel injection nozzle by return of fuel from the fuel filter. SOLUTION: A first fuel-return pipe 1A is provided by making muitiple fuel injection nozzles N communicate in series, and a connector 7 communicated to a fuel tank by the piping is provided. The first fuel-return pipe 1A and a second fuel-return pipe 4 from the fuel filer 5 are separately laid to the connector 7.