FUEL SUPPLY PIPE

摘要

A fuel supply pipe with high corrosion resistance and high manufacturing accuracy is provided. In particular, a cylindrical fuel supply pipe main unit (2) made of a plated steel sheet has a fuel fill opening (2a) at one end, and the other end is connected to a fuel tank (10). A short cylindrical retainer (3) made of stainless steel includes a first cylindrical member (5) and a second cylindrical member (6) which are fixed to the fuel fill opening (2a) and have openings at both ends. On an inner periphery of the opening at one end of the first cylindrical member (5), a female screw (5a) to be screwed to a male screw (C1) of a fuel cap (C) is formed. The second cylindrical member (6) is inserted into the first cylindrical member (5) from the opening at the other end and spot-welded (Sw) prior to reaching the female screw (5a). An opening end of the second cylindrical member (6) that is not inserted into the first cylindrical member (5) has an insertion hole (6a) into which a nozzle (G1) of a fuel supply gun (G) is inserted. The retainer (3) is fitted to the fuel supply pipe main unit (2) so that an end portion of the fuel supply pipe main unit (2) at the fuel fill opening (2a) side is inserted into a gap (S) between the outer periphery of the insertion hole (6a) and the inner periphery of the first cylindrical member (5) at the other opening side, and the fitted portion is continuously welded by brazing (Tw).