초록 ▼

A double walled fuel line for use with fuel injection engines including first and second, nominally concentric tubes having an annular space therebetween. both of the tubes are bendable on conventional tube bending equipment and the innermost tube mounts fittings for connection into a fuel injection

A double walled fuel line for use with fuel injection engines including first and second, nominally concentric tubes having an annular space therebetween. both of the tubes are bendable on conventional tube bending equipment and the innermost tube mounts fittings for connection into a fuel injection system. An additional fitting associated with the outermost tube establishes fluid communication to the annular space between the tubes for venting leaking fuel.

대표청구항 ▼

A fuel line adapted to be associated with fuel injection engines comprising: a first elongated, metallic, bendable tube generally circular in cross section and having a wall thickness sufficient to normally withstand the high pressures associated with fuel injection pumps; a pair of fittings, one ro

A fuel line adapted to be associated with fuel injection engines comprising: a first elongated, metallic, bendable tube generally circular in cross section and having a wall thickness sufficient to normally withstand the high pressures associated with fuel injection pumps; a pair of fittings, one rotatably disposed at each end of said first tube, for connecting said tube into a fuel injection system; a second, elongated, metal tube, generally circular in cross section, disposed normally concentrically about said first tube and having an inner diameter greater than the outer diameter of said first tube and further having a relatively thin wall so as to be bendable with conventional tube bending equipment; means substantially sealing the ends of said second tube to said first tube and for preventing substantial relative axial movement between said tubes; said sealing means including a further fitting between the fittings of said pair and including a port in fluid communication with the interior of said second tube.