Fuel injection system for internal combustion engine

Details Fuel injection system for internal combustion engine Fuel injection system for internal combustion engine

1995-03-13

1996-05-21

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Auxiliary air or gas used to inject fuel

F02M 2300

Patent

active

055179746

ABSTRACT:
A fuel injector air assist passage 4 bypasses the throttle valve 1 in the intake manifold of an internal combustion engine, and includes an air pump 10 itself bypassed by a further passage including a pressure controller 25. The controller has a valve disposed in the further passage, controlled by a diaphragm 25d having one side communicating with the intake manifold at the injector site and another, opposite side communicating with the assist passage downstream of the pump. A constant pressure differential is thereby maintained across the injector, regardless of manifold pressure changes.

REFERENCES:
patent: 4962745 (1990-10-01), Ohno et al.
patent: 4969435 (1990-11-01), Morikawa et al.
patent: 5016598 (1991-05-01), Kushibe et al.
patent: 5174111 (1992-12-01), Nomura et al.
patent: 5205120 (1993-04-01), Oblander et al.
patent: 5289812 (1994-03-01), Trombley et al.
patent: 5331939 (1994-07-01), Trombley et al.
patent: 5345919 (1994-09-01), Uchinami

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