JPS55166013A - Knocking detector for internal combustion engine - Google Patents
Knocking detector for internal combustion engineInfo
- Publication number
- JPS55166013A JPS55166013A JP7366079A JP7366079A JPS55166013A JP S55166013 A JPS55166013 A JP S55166013A JP 7366079 A JP7366079 A JP 7366079A JP 7366079 A JP7366079 A JP 7366079A JP S55166013 A JPS55166013 A JP S55166013A
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- reed
- frequency
- knocking
- response
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To produce frequency characteristics with a wide half-value width by a method wherein the natural frequency of a vibrating body is set near the center of knocking generation frequency band, and at least part of the fixed end of the vibrating body is elastically fixed using an elastic body.
CONSTITUTION: A detector 2 is fixed to a cylinder block by screwing into screw section 25a. Knocking vibration occurring to the cylinder block is transmitted via housing 25 to a reed 21a, which, because it is fixed at one end, vibrates according to the strength of this vibration's frequency. In this occasion, the response of the reed 21a is particularly large for vibrational force having frequency components near the natural frequency of the reed 21a. Core 23, coil 24, and magnet 22 are strongly fixed so that they are to vibrate with the housing 25; so only the reed 21a relatively vibrates in response to the knock vibration, and the distance of gap G changes in response to knocking.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7366079A JPS55166013A (en) | 1979-06-11 | 1979-06-11 | Knocking detector for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7366079A JPS55166013A (en) | 1979-06-11 | 1979-06-11 | Knocking detector for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55166013A true JPS55166013A (en) | 1980-12-24 |
JPS6148649B2 JPS6148649B2 (en) | 1986-10-25 |
Family
ID=13524645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7366079A Granted JPS55166013A (en) | 1979-06-11 | 1979-06-11 | Knocking detector for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55166013A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004037181A (en) * | 2002-07-02 | 2004-02-05 | Hitachi Maxell Ltd | Vibration sensor |
-
1979
- 1979-06-11 JP JP7366079A patent/JPS55166013A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6148649B2 (en) | 1986-10-25 |
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