Knock detector device for internal combustion engines

Details Knock detector device for internal combustion engines Knock detector device for internal combustion engines

1980-07-14

1982-03-16

Gill, James J.

Measuring and testing

Engine detonation

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

G01L 2322

Patent

active

043194800

ABSTRACT:
A knock detector device for internal combustion engines comprises a first sensor for sensing the vibrations of an engine within its knocking frequency range, a second sensor for sensing the vibrations of the engine irrespective of the engine knocking frequencies, and a noise suppressing circuit for eliminating the noise in the output signal of the first sensor by means of the output signal of the second sensor.

REFERENCES:
patent: 4012942 (1977-03-01), Harned
patent: 4111035 (1978-09-01), West et al.

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