Low heat generation fuel injection system

Details Low heat generation fuel injection system Low heat generation fuel injection system

2006-06-06

2006-06-06

Kwon, John T. (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S478000

Reexamination Certificate

active

07055494

ABSTRACT:
When an electronic control unit (ECU) performs post-injection operation, the ECU intermittently implements a post-injection suspending pattern for suspending output of a post-injection command signal after outputting a normal injection command signal. The ECU implements the post-injection suspending pattern in non-overlapping cylinders and certain overlapping cylinders out of the entire overlapping cylinders. Normal injections are performed in the certain overlapping cylinders immediately before the normal injections performed in the non-overlapping cylinders. Thus, heat generation of an injection drive circuit can be reduced. Meanwhile, an injection pressure of the normal injection performed by an injector in each cylinder can be stabilized.

REFERENCES:
patent: 4215659 (1980-08-01), Lowther
patent: 2003/0221423 (2003-12-01), Kosaka et al.
patent: 8232740 (1996-09-01), None
patent: 9060541 (1997-03-01), None

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