Method for internal combustion engine start-up

Details Method for internal combustion engine start-up Method for internal combustion engine start-up

1996-08-12

1999-04-06

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123481, 123491, F02D 1702, F02D 4106, F02M 4502

Patent

active

058904670

ABSTRACT:
A method for engine start-up reducing white smoke and the start-to-idle time. The method includes the combination of producing two sub-fuel injections into the cylinders of the internal combustion engine at different points in the position of at least one injection valve of the engine and reducing the number of combusting cylinders in half. The two sub-fuel injections reduce the start-to-idle time. Once the engine is idling, the half cylinder operation reduces the white smoke emitted therefrom. The two sub-fuel injections are also employed when in half cylinder operation to reduce noise.

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