DE2944647A1 - Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen - Google Patents

Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen

Info

Publication number
DE2944647A1
DE2944647A1 DE19792944647 DE2944647A DE2944647A1 DE 2944647 A1 DE2944647 A1 DE 2944647A1 DE 19792944647 DE19792944647 DE 19792944647 DE 2944647 A DE2944647 A DE 2944647A DE 2944647 A1 DE2944647 A1 DE 2944647A1
Authority
DE
Germany
Prior art keywords
piezoelectric element
clamped
engine knock
clamp
single element
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
Application number
DE19792944647
Other languages
German (de)
English (en)
Other versions
DE2944647C2 (
Inventor
Bernward Dr.-Ing. 7140 Ludwigsburg Böning
Rudolf 7144 Asperg Nagel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19792944647 priority Critical patent/DE2944647A1/de
Publication of DE2944647A1 publication Critical patent/DE2944647A1/de
Application granted granted Critical
Publication of DE2944647C2 publication Critical patent/DE2944647C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01L23/222—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 using piezoelectric devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
DE19792944647 1979-11-06 1979-11-06 Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen Granted DE2944647A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792944647 DE2944647A1 (de) 1979-11-06 1979-11-06 Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792944647 DE2944647A1 (de) 1979-11-06 1979-11-06 Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen

Publications (2)

Publication Number Publication Date
DE2944647A1 true DE2944647A1 (de) 1981-05-14
DE2944647C2 DE2944647C2 ( ) 1987-03-12

Family

ID=6085187

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792944647 Granted DE2944647A1 (de) 1979-11-06 1979-11-06 Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen

Country Status (1)

Country Link
DE (1) DE2944647A1 ( )

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228534A1 (de) * 1981-07-31 1983-04-07 General Motors Corp., Detroit, Mich. Piezoelektrischer klopffuehler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417132C2 (de) * 1994-05-17 1996-08-14 Ibm Resonanter Meßwertaufnehmer und dessen Verwendung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE445470C (de) * 1925-02-19 1927-06-10 Viktor Blaess Dr Ing Resonanzschwingungsmesser
DE746666C (de) * 1940-05-27 1944-08-16 Versuchsanstalt Fuer Luftfahrt Indikator
DE870041C (de) * 1950-06-01 1953-03-09 Sodet Soc D Echanges Tech Vorrichtung zur Messung mechanischer Verformungen
DE2801969A1 (de) * 1978-01-18 1979-07-19 Bosch Gmbh Robert Sensor fuer schwingungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE445470C (de) * 1925-02-19 1927-06-10 Viktor Blaess Dr Ing Resonanzschwingungsmesser
DE746666C (de) * 1940-05-27 1944-08-16 Versuchsanstalt Fuer Luftfahrt Indikator
DE870041C (de) * 1950-06-01 1953-03-09 Sodet Soc D Echanges Tech Vorrichtung zur Messung mechanischer Verformungen
DE2801969A1 (de) * 1978-01-18 1979-07-19 Bosch Gmbh Robert Sensor fuer schwingungen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-AS 16 73 919, Spalten 1-4 *
Hochfrequenztechnik und Elektroakustik, H. 2, 1959, S. 64-74 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228534A1 (de) * 1981-07-31 1983-04-07 General Motors Corp., Detroit, Mich. Piezoelektrischer klopffuehler

Also Published As

Publication number Publication date
DE2944647C2 ( ) 1987-03-12

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8120 Willingness to grant licences paragraph 23
D2 Grant after examination
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee