Method and apparatus for controlling emissions from internal...

Details Method and apparatus for controlling emissions from internal... Method and apparatus for controlling emissions from internal...

2007-12-19

2010-12-14

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S300000, C123S443000, C123S445000, C123S463000, C060S278000, C701S108000, C701S104000

Reexamination Certificate

active

07849834

ABSTRACT:
An internal combustion engine is provided with a control arrangement for influencing exhaust gas pressures and the level of In-Cylinder-Charge-Dilution (ICCD) so as to provide cycles with different emission characteristics. The exhaust gas pressure may be influenced by adjusting a combustion parameter between various cycles. The adjustment of the combustion parameter may, for example, include an adjustment of the injection timing, a change in shot mode, or a change in fuel quantity. By making such adjustments, cycle-to-cycle exhaust gas pressure variations may be introduced so as to influence future combustion events and reduce overall emissions and noise levels.

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European Search Report and Opinion dated Jun. 4, 2007, for Application No. 06126955.1 (6 pages).

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