Method and apparatus for detecting ionization signal in...

Internal-combustion engines – Combustion chamber means having fuel injection only – Injection of fuel onto igniter – deflector – heater – or atomizer

Reexamination Certificate

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C073S035080, C073S116070, C123S14300R, C123S305000, C123S406260, C123S435000

Reexamination Certificate

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06994073

ABSTRACT:
An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a diesel engine is presented. The apparatus is a spark plug type of sensor or a sensor integrated with a fuel injector. The spark plug type of sensor is used to provide a cold start mechanism combined with an ion sensing device.

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