Patent ID: 6286556
Filing Date: 2001-09-11
Classification: F02M

Abstract:
A high-pressure fuel injection pipe for a diesel engine comprising:a unitary fuel pipe main body having opposed first and second ends and enlarged first and second connection heads formed respectively at said first and second ends;a first fastening nut mounted over said first connection head of said fuel pipe main body;a second fastening nut mounted over said second connection head of said fuel pipe main body;a unitary first outer pipe surrounding portions of the fuel pipe main body, said first outer pipe having a first end mounted to the first fastening nut and a second end projecting toward the second end of the fuel pipe main body;a unitary second outer pipe surrounding portions of said fuel pipe main body, said second outer pipe having a second end mounted to the second fastening nut and a first end projecting toward said first end of said fuel pipe main body, said first end of second outer pipe being circumferentially expanded and being telescoped over said second end of said first outer pipe; anda seal ring disposed between the first outer pipe and the circumferentially expanded portion of the second outer pipe that is telescoped over the first outer pipe.