Cold start fuel atomizer and process

Details Cold start fuel atomizer and process Cold start fuel atomizer and process

1991-12-11

1993-03-23

Dolinar, Andrew M.

Internal-combustion engines

Starting device

Auxiliary fuel supply device

123 1A, 123445, 123468, 29890143, 239566, 239598, 239601, F02M 1708, F02N 6116

Patent

active

051954770

ABSTRACT:
An apparatus for atomizing a gasoline-alcohol blend of automotive fuel and supplying a supplemental amount of vaporized fuel to the intake ports of an engine during cold weather start-up. Also a method of making the same. The apparatus comprises a tubular member having a plurality of configured atomizing orifices. It is positioned inside an engine air intake manifold with its orifice facing away from the intake port side of the manifold in an upstream direction. The orifices are formed by a stamping process wherein a die deforms the tube inwardly at each orifice site and ultimately punctures the tube wall producing a "T" shaped orifice opening with burred irregular edges and contoured sides. Preferably, each of the apertures is located between a pair of intake ports. Fuel is supplied to a head end of the tubular member, such as by means of an electromagnetic fuel injector, and the tail end of the member is closed.

REFERENCES:
patent: 2582637 (1952-01-01), Leake
patent: 2728384 (1955-12-01), Anderson
patent: 2834635 (1958-05-01), Miller

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