Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Patent
1997-12-18
1999-04-13
Moulis, Thomas N.
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
123496, F02B 300
Patent
active
058933476
ABSTRACT:
A method for apportioning a total fuel quantity to be injected to an engine by a hydraulically-actuated injector between a pilot shot and a main shot includes determining a pilot shot and/or main shot fuel quantity desired to be delivered during injection. The desired pilot shot fuel quantity is compared with a threshold pilot shot fuel quantity and/or the desired main shot fuel quantity is compared with a threshold main shot fuel quantity. The total fuel quantity is delivered by a pilot shot if the desired pilot shot fuel quantity is less than the threshold pilot shot fuel quantity and/or the desired main shot fuel quantity is less than the threshold main shot fuel quantity.
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McGee Brian G.
Timmons John P.
Caterpillar Inc.
Moulis Thomas N.
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