Internal combustion engine cylinder-to-cylinder balancing...

Internal-combustion engines – Charge forming device – Including cylinder pressure or temperature responsive means

Reexamination Certificate

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C123S436000

Reexamination Certificate

active

06981488

ABSTRACT:
A method of balancing combustion among cylinders of an internal combustion engine. For each cylinder, a normalized peak firing pressure is calculated as the ratio of its peak firing pressure to its combustion pressure. Each cylinder's normalized peak firing pressure is compared to a target value for normalized peak firing pressure. The fuel flow is adjusted to any cylinder whose normalized peak firing pressure is not substantially equal to the target value.

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