Auxiliary fuel injection unit in internal combustion engine...

Details Auxiliary fuel injection unit in internal combustion engine... Auxiliary fuel injection unit in internal combustion engine...

2006-09-19

2006-09-19

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Starting device

Auxiliary fuel supply device

C123S179700

Reexamination Certificate

active

07107955

ABSTRACT:
An auxiliary fuel injection unit includes two surge tanks partitioned by a wall surface, a butterfly valve for switching between connection and disconnection of two surge tanks, and one auxiliary fuel injection valve for injecting an auxiliary fuel in a direction opposing a direction of flow of intake air within the surge tank. The butterfly valve has a valve plate surface closing an opening provided in the surge tank wall surface and a rotation shaft for turning the plate surface. The auxiliary fuel injection valve has two injection holes connecting with each other, for injecting the auxiliary fuel toward the valve plate surface of the butterfly valve and toward the surge tank wall surface.

REFERENCES:
patent: 5027769 (1991-07-01), Yoshida et al.
patent: 6986331 (2006-01-01), Mizutani
patent: 2004/0007209 (2004-01-01), Ohtani
patent: A 58-107831 (1983-06-01), None
patent: A 02-049952 (1990-02-01), None
patent: A 11-294225 (1999-10-01), None
patent: A 2001-152926 (2001-06-01), None

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