Spark ignited internal combustion engine and a control system th

Details Spark ignited internal combustion engine and a control system th Spark ignited internal combustion engine and a control system th

1990-04-09

1991-07-09

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123435, 73 35, F02P 514, G01L 2306, G01L 2322

Patent

active

050295659

ABSTRACT:
A spark ignited internal combustion engine is disclosed in which at least one of the inlet tracts of the engine has an optical knock sensor in the form of an infra-red temperature sensor located in it. The infra-red temperature sensor is positioned to sense by viewing past an inlet valve means associated with the respective inlet tract at least during part of the induction stroke of the respective cylinder of the engine the temperature of the upper surface of the respective piston. A control system for such an engine is also disclosed in which the output from the infra-red temperature sensor is supplied to an electronic control unit. The electronic control unit operates so as to adjust the ingition timing of the engine in response to the signal received from the infra-red temperature sensor.

REFERENCES:
patent: 4377086 (1983-03-01), Linder et al.
patent: 4463733 (1984-08-01), Tsai
patent: 4760830 (1988-08-01), Bullis et al.
patent: 4919099 (1990-04-01), Extance et al.
patent: 4930478 (1990-06-01), Plee et al.

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