High pressure fuel injection pipe
A high-pressure fuel injection pipe of doubled type, comprising: a thick outer tube; and an inner tube of made a metal and fitted in the outer tube to form a doubled pipe which is formed at its end portion with a connecting head having a face to be fitted on a seat of a mating partner. The outer tube is made of stainless steel or titanium, and the inner tube is formed of a thin metal having a high corrosion-resistance and a high strength and is doubled on the inner circumference of the outer tube throughout its entire length.
Usui Kokusai Sangyo Kaisha Limited
F F F F
F16L F16L F02B F02M
inventional inventional additional inventional
Tadahiro Nobuo
Uematsu Kato