Internal combustion engine transient fuel control

Details Internal combustion engine transient fuel control Internal combustion engine transient fuel control

2005-01-25

2005-01-25

Mohanty, Bibhu (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S478000, C123S445000

Reexamination Certificate

active

06845760

ABSTRACT:
An apparatus and method for improving the transient response of a spark-ignited fuel-injected internal combustion engine is disclosed. This is accomplished by employing one or more novel capillary fuel injectors. These devices are port fuel injectors modified by inserting one or more relatively small diameter heated tubular capillaries between the fuel line and a conventional injector. Sufficient heating can be produced so that flash vaporization occurs as the fuel exits the injector. The heaters are turned on using control algorithms that can be based on exhaust gas oxygen concentration, load on the engine, and accelerator pedal position.

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