Non-resonance type knock sensor

Details Non-resonance type knock sensor Non-resonance type knock sensor

2005-08-02

2005-08-02

Noori, Max (Department: 2855)

Measuring and testing

Engine detonation

Specific type of detonation sensor

Reexamination Certificate

active

06923041

ABSTRACT:
A non-resonance type knock sensor is provided which comprises a support member having a main body portion in the form of a hollow post and a radially outward flange portion at an axial end of the main body portion, the main body portion having an abutment at an outer circumferential periphery thereof, a piezoelectric element having a hole through which the main body portion extends and placed on the flange portion, a weight having a hole through which the main body portion extends and placed on the piezoelectric element, and an elastic device disposed between the abutment and the weight to produce an elastic force for pressing the weight and the piezoelectric element against the flange portion and thereby fixing the weight and the piezoelectric element to the support member.

REFERENCES:
patent: 4319480 (1982-03-01), Yamaguchi et al.
patent: 4483179 (1984-11-01), Oshima et al.
patent: 4574616 (1986-03-01), Miura et al.
patent: 4964294 (1990-10-01), Kawajiri et al.
patent: 4966031 (1990-10-01), Mochizuki
patent: 5965804 (1999-10-01), Sakamoto
patent: 6220078 (2001-04-01), Brammer et al.
patent: 2000-39357 (2000-02-01), None

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