JPS57108726A - Method and device for detection of knocking for internal combustion engine - Google Patents

Method and device for detection of knocking for internal combustion engine

Info

Publication number
JPS57108726A
JPS57108726A JP18627180A JP18627180A JPS57108726A JP S57108726 A JPS57108726 A JP S57108726A JP 18627180 A JP18627180 A JP 18627180A JP 18627180 A JP18627180 A JP 18627180A JP S57108726 A JPS57108726 A JP S57108726A
Authority
JP
Japan
Prior art keywords
pressure
knocking
cooling water
detection
pulsating
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
JP18627180A
Other languages
Japanese (ja)
Inventor
Tadashi Hattori
Masanori Hanaoka
Yukihide Hashiguchi
Yoshinori Otsuka
Kimiaki Yamaguchi
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.)
Toyota Motor Corp
Soken Inc
Original Assignee
Nippon Soken Inc
Toyota Motor Corp
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, Toyota Motor Corp filed Critical Nippon Soken Inc
Priority to JP18627180A priority Critical patent/JPS57108726A/en
Priority to US06/335,283 priority patent/US4452069A/en
Publication of JPS57108726A publication Critical patent/JPS57108726A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/14—Housings
    • G01L19/148—Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0007—Fluidic connecting means
    • G01L19/0038—Fluidic connecting means being part of the housing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0609—Pressure pulsation damping arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0627—Protection against aggressive medium in general
    • G01L19/0645—Protection against aggressive medium in general using isolation membranes, specially adapted for protection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To realize the detection for the knocking of an internal combustion engine with simple constitution and high accuracy, by detecting the differential pressure produced by eliminating the pressure of the static cooling water from the composite pressure of the pressure of the static cooling water and the pulsating pressure which works in response to the knocking. CONSTITUTION:With occurrence of knocking, the cylinder wall surface has a distortion to produce the pulsating pressure to the cooling water. Then the pulsating pressure and the pressure of the static cooling water are applied to the lower surface of a diaphragm 203a of a distortion meter via a diaphragm 205 and a noncompressive liquid 215. On the other hand, the same pressure is applied to a compressive material member 209 via a pressure lead-in hole 208, and the pulsating pressure is absorbed to the member 209. Then the pressure of the static cooling water is applied to the upper surface of the diaphragm 203a via the liquid 215 to be eliminated by a differential pressure process. In such way, only the pulsating pressure corresponding to the knocking is detected through a simple constitution to ensure the knocking detection with high accuracy.
JP18627180A 1980-12-26 1980-12-26 Method and device for detection of knocking for internal combustion engine Pending JPS57108726A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP18627180A JPS57108726A (en) 1980-12-26 1980-12-26 Method and device for detection of knocking for internal combustion engine
US06/335,283 US4452069A (en) 1980-12-26 1981-12-28 Method of and apparatus for sensing knocking in internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18627180A JPS57108726A (en) 1980-12-26 1980-12-26 Method and device for detection of knocking for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57108726A true JPS57108726A (en) 1982-07-06

Family

ID=16185364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18627180A Pending JPS57108726A (en) 1980-12-26 1980-12-26 Method and device for detection of knocking for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57108726A (en)

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