Device for detecting pressure fluctuations in a combustion chamb

Details Device for detecting pressure fluctuations in a combustion chamb Device for detecting pressure fluctuations in a combustion chamb

1986-02-03

1987-05-19

Levy, Stewart J.

Measuring and testing

Engine detonation

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

G01L 2322

Patent

active

046657371

ABSTRACT:
A device for detecting pressure fluctuations in a combustion chamber of an internal combustion chamber includes two ionic current gages positioned in an end gas region of the combustion chamber and spaced from each other by a predetermined distance in an axial direction. The device detects pressure knocks in the combustion chamber by defining various time intervals for the occurrence of the ionic current during the knocking combustion and non-knocking combustion of gases in the combustion chamber.

REFERENCES:
patent: 4307603 (1981-12-01), Dobler et al.
patent: 4308519 (1981-12-01), Garcea et al.

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