First and second spark plugs for improved combustion control

Details First and second spark plugs for improved combustion control First and second spark plugs for improved combustion control

2006-03-17

2009-08-25

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

Internal-combustion engines

Combustion chamber means having fuel injection only

Injecting diverse fuels or different states of same fuel

C123S310000, C123S431000, C123S575000, C123S638000

Reexamination Certificate

active

07578281

ABSTRACT:
A method of operating an internal combustion engine having at least one combustion chamber including a first spark plug and a second spark plug, wherein the first spark plug is configured to operate at a higher temperature than the second spark plug, the method comprising of varying at least a resulting ratio of an amount of a fuel and an amount of a fluid delivered to the combustion chamber responsive to a first condition, and selectively using at least one of the first spark plug and the second spark plug to ignite at least one of the fuel and the fluid delivered to the combustion chamber.

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