Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2006-08-29
2006-08-29
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C123S299000
Reexamination Certificate
active
07096853
ABSTRACT:
A control apparatus is configured to enhance turbulence in the cylinder produced by the fuel spray, and to improve combustion stability (promote flame propagation) in an ATDC designed to reduce HC and/or achieve early activation of the catalyst. Ignition timing is set to compression top dead center or later when for example the catalyst requires warming. In one fuel injection timing, a single fuel injection is injected prior to ignition timing at compression stroke top dead center or later. Alternatively, the fuel is injected in two fuel injections with a first fuel injection occurring during either the intake stroke or the compression stroke and the second fuel injection occurring at compression stroke top dead center or later.
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Ando et al., Mitsubishi GDI Engine Strategies to Meet the European Requirements, book, 1997, 55 & 55-70.
Global IP Counselors, LLP
Nissan Motor Co,. Ltd.
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