Method and apparatus for detecting knocking combustion

Details Method and apparatus for detecting knocking combustion Method and apparatus for detecting knocking combustion

1982-02-12

1984-03-20

Myracle, Jerry W.

Measuring and testing

Engine detonation

Combustion signal compared to reference signal varied by a...

G01L 2322

Patent

active

044373341

ABSTRACT:
A method, and apparatus for carrying out the method, for detecting knocking operation in externally auto-ignited internal combustion engines. The radiation emitted from the combustion chamber gases is detected with a knock sensor and is passed on. Suitable as a knock sensor are photo-conductive fibers which are preferably accommodated in the central electrode of the spark plug. The radiation detected by the knock sensor is conveyed through a transmission mechanism, which can also be constructed of photo-conductive fibers, to a radiation receiver and a signal converter, for example a photo-multiplier, and is subsequently processed in a processing logic. The processing logic delivers an output signal when knocking operation exists. This output signal can either be indicated, and/or can be utilized to control the parameters which influence the knocking combustion.

REFERENCES:
patent: 2841979 (1958-07-01), Harbert
patent: 4290398 (1981-09-01), Hattori et al.
patent: 4377086 (1983-03-01), Linder et al.

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