JPS5666728A - Knocking detector for internal combustion engine - Google Patents

Knocking detector for internal combustion engine

Info

Publication number
JPS5666728A
JPS5666728A JP14247379A JP14247379A JPS5666728A JP S5666728 A JPS5666728 A JP S5666728A JP 14247379 A JP14247379 A JP 14247379A JP 14247379 A JP14247379 A JP 14247379A JP S5666728 A JPS5666728 A JP S5666728A
Authority
JP
Japan
Prior art keywords
knocking
oscillation
change
magnetic path
magnetic
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.)
Pending
Application number
JP14247379A
Other languages
Japanese (ja)
Inventor
Kimiaki Yamaguchi
Tadashi Hattori
Yoshinori Otsuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soken Inc
Original Assignee
Nippon Soken Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP14247379A priority Critical patent/JPS5666728A/en
Publication of JPS5666728A publication Critical patent/JPS5666728A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To enable the detection of minute knocking, by having a magnetic path forming a gap adjacent to the oscillating body, and detecting the change in the gap width as the change in the magnetic resistance of the magnetic path, due to the oscillation of the oscillation body.
CONSTITUTION: Since the knocking detector is fitted to the cylinder block of engine with screws 27a, the knocking oscillation at the cylinder block is delivered to an oscillation body 21 via a housing 27. Since one end of a lead chip 21a of the body 21 is fixed to the housing strongly via a holder 21b, the lead chip 21a only is oscillated in the magnetic path to change the gap G, and the magnetic resistance in the magnetic path is changed and a voltage corresponding to the magnetic flux change is produced in the coil 25. This signal is output to the detection circuit on signal lines 31 via a terminal 28b to detect the knocking.
COPYRIGHT: (C)1981,JPO&Japio
JP14247379A 1979-11-02 1979-11-02 Knocking detector for internal combustion engine Pending JPS5666728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14247379A JPS5666728A (en) 1979-11-02 1979-11-02 Knocking detector for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14247379A JPS5666728A (en) 1979-11-02 1979-11-02 Knocking detector for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5666728A true JPS5666728A (en) 1981-06-05

Family

ID=15316132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14247379A Pending JPS5666728A (en) 1979-11-02 1979-11-02 Knocking detector for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5666728A (en)

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