Title:
【発明の名称】ノッキングセンサ
Document Type and Number:
Japanese Patent JP3236292
Kind Code:
B2
Abstract:
A knock sensor for indirect or direct fixing to an internal combustion engine has a housing (10) with a pressure sleeve (11) on the outer side of which a piezoceramic disk, a seismic mass (16), the contact disks (14), and the insulating disks (13) are arranged. The insulating disks (13) or the piezoelectrical disk (15) are or is made slightly electrically conductive so that the voltage spikes which occur due to the pyroelectrical effect can be easily eliminated. In this way, faulty measuring and interference can be avoided in the electrical circuit connected to the knock sensor.
Inventors:
Entman, robert
Bonitz, Jörg
Unland, Stephan
Fleece, rom alto
Sloboda, robert
Schenck, Claus
Domus, Karl
Bonitz, Jörg
Unland, Stephan
Fleece, rom alto
Sloboda, robert
Schenck, Claus
Domus, Karl
Application Number:
JP51010592A
Publication Date:
December 10, 2001
Filing Date:
June 10, 1992
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
G01H11/08; F02D45/00; G01L23/22; G01M15/00; (IPC1-7): G01H11/08; F02D45/00; G01M15/00
Domestic Patent References:
| JP5733329A |
Other References:
【文献】米国特許4966031(US,A)
Attorney, Agent or Firm:
Toshio Yano (4 outside)