Start-up control of in-cylinder fuel injection internal...

Details Start-up control of in-cylinder fuel injection internal... Start-up control of in-cylinder fuel injection internal...

2006-05-23

2006-05-23

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S295000, C123S299000

Reexamination Certificate

active

07047945

ABSTRACT:
A four-stroke cycle in-cylinder fuel injection internal combustion engine (1) comprises a fuel injector (8) which injects fuel directly into a combustion chamber (7), performs stratified charge combustion by means of compression stroke fuel injection, and performs homogeneous combustion by means of intake stroke fuel injection. Upon start-up of the engine (1), intake stroke fuel injection is performed at the first combustion opportunity, and compression stroke fuel injection is switched to from the second combustion opportunity onward. In so doing, switching of the combustion system is performed early and independently of the engine rotation speed.

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