Double walled fuel line

Details Double walled fuel line Double walled fuel line

1977-12-07

1979-04-17

Haroian, Harry N.

Pipes and tubular conduits

Plural duct

Coaxial

F16L 918

Patent

active

041495683

ABSTRACT:
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.

REFERENCES:
patent: 1389768 (1921-09-01), McFarland
patent: 1481255 (1924-01-01), Cumfer
patent: 1737161 (1929-11-01), Jupp
patent: 2468902 (1949-05-01), Villiger
patent: 2475635 (1949-07-01), Parsons
patent: 2512116 (1950-06-01), Siebels
patent: 2838074 (1958-06-01), Lauck
patent: 3299417 (1967-01-01), Sibthorpe
patent: 4014369 (1977-03-01), Kobres

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