Knock detecting apparatus for internal combustion engines

Details Knock detecting apparatus for internal combustion engines Knock detecting apparatus for internal combustion engines

1980-05-27

1982-06-29

Gill, James J.

Measuring and testing

Engine detonation

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

73651, 310 25, G01L 2322

Patent

active

043367070

ABSTRACT:
A vibrator having a resonant frequency within a knocking frequency range forms a part of a magnetic path. The vibrator vibrates in response to the vibration of an internal combustion engine and this changes the reluctance of the magnetic path. The change in the reluctance is sensed by a coil to detect the presence of knock. The vibrator is enclosed with a damper substance consisting of a liquid or sol substance having viscosity of flow properties so that the vibration of the vibrator is restricted and the Q of the resonance characteristic of the vibrator is deteriorated, thus increasing the substantial range of frequency detection of the apparatus. If necessary, the damper substance is heated to maintain its viscosity at a predetermined value.

REFERENCES:
patent: 1746171 (1930-02-01), Vatinet et al.
patent: 2300638 (1942-11-01), Wente
patent: 2424864 (1947-07-01), Treseder
patent: 2641719 (1953-06-01), Adams
patent: 3513415 (1970-05-01), Dostal
patent: 4275586 (1981-06-01), Gast et al.

Affiliated with

Also associated with

Rating

Knock detecting apparatus for internal combustion engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Knock detecting apparatus for internal combustion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Knock detecting apparatus for internal combustion engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2160868