DE828460C - Ignition spark tester by means of a VHF pulse receiver - Google Patents

Ignition spark tester by means of a VHF pulse receiver

Info

Publication number
DE828460C
DE828460C DEF853A DEF0000853A DE828460C DE 828460 C DE828460 C DE 828460C DE F853 A DEF853 A DE F853A DE F0000853 A DEF0000853 A DE F0000853A DE 828460 C DE828460 C DE 828460C
Authority
DE
Germany
Prior art keywords
ignition
spark
ignition spark
frequency
pulse receiver
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.)
Expired
Application number
DEF853A
Other languages
German (de)
Other versions
DE1612574U (en
Inventor
Edgar Frank
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEF853A priority Critical patent/DE828460C/en
Application granted granted Critical
Publication of DE828460C publication Critical patent/DE828460C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spark Plugs (AREA)

Description

Bei Prüfungen des Zündfunkens von Ottomotoren innerhalb des Zylinders begegnet man allgemein Schwierigkeiten, da man weder in den Zylinder hineinsehen kann, noch Rückschlüsse bei geprüften Kerzen ihre Berechtigung haben. Bekannte Einrichtungen zum Prüfen der Zündfunken beziehen sich lediglich auf den Nachweis der Zündspannung und bilden auch nur annähernd die Verhältnisse im Zylinder nach, so daß bisher das ein--,vandfreie Überspringen des Zündfunkens innerhalb des Zylinders von außen mit Sicherheit nicht nachgewiesen werden konnte.When testing the spark of gasoline engines inside the cylinder one encounters difficulties in general because one does not look into the cylinder can still be justified in drawing conclusions from tested candles. Well-known institutions for checking the ignition sparks refer only to the verification of the ignition voltage and only approximate the conditions in the cylinder, so that so far that a, wall-free skipping of the ignition spark inside the cylinder from the outside with Safety could not be proven.

Aus der bekannten Tatsache heraus, daß bei richtigem Zündelektrodenabstand von '/1o bis 'ho mm elektrische Wellen erzeugt werden, von denen solche von 5 bis 1 5 m besondere Intensität besitzen, verwendet die Erfindung einen UKW-Empfänger, der mittels eines Taststabes T lediglich durch Annähern an den Hochspannungsteil der Zündeinrichtung die notwendige Energie über einen Schwingungskreis, bestehend aus der Induktivität L und dem Kondensator C dem Steuergitter G einer Verstärkerröhre V einer üblichen Verstärkeranordnung zufuhrt. Im Ausgangskreis der Verstärkeranordnung liegt über einem Kondensator C2 eine Glimmlampe Gl, die den verstärkten Impuls optisch zur Anzeige bringt. Der abgestimmte Schwingungskreis verhindert unerwünschtes Eindringen nichthochfrequenter Störspannungen, so daß die Glimmlampe G!, gegenüber bereits bekannten Einrichtungen, nur dann aufleuchtet, wenn der Schwingungskreis entsprechend kurzwellig angestoßen wird. Das Annähern des Taststabes T an den Hochspannungsteil der Zündeinrichtung sorgt \%-eiterliin für eine exakte und abgegrenzte Anzeige der Hochfrequenzimpulse durch die sich dabei zwangsläufig einstellende Dosierung der Energie, während z. B. andere Störimpulse infolge geringer Intensität nicht zur Anzeige gelangen. «-as gegenüber bereits bekannten Einrichtungen, wie z. B. Zündspannungsprüfern usw., einen wesentlichen Vorteil darstellt. So ist es möglich. mit dieser Einrichtung das Vorhandensein des Zündfunkens an der Zündkerze unter den tatsächlichen Betriebsbedingungen von außen nachzuweisen und anzeigen zu lassen.From the known fact that with the correct ignition electrode spacing of '/ 1o to' ho mm electrical waves are generated, of which those from 5 to 15 m have a particular intensity, the invention uses a VHF receiver which by means of a probe rod T only by approaching the high-voltage part of the ignition device, supplies the necessary energy via an oscillating circuit, consisting of the inductance L and the capacitor C, to the control grid G of an amplifier tube V of a conventional amplifier arrangement. In the output circuit of the amplifier arrangement there is a glow lamp Gl via a capacitor C2, which visually displays the amplified pulse. The tuned oscillation circuit prevents unwanted penetration of non-high-frequency interference voltages, so that the glow lamp G !, in contrast to already known devices, only lights up when the oscillation circuit is triggered with a correspondingly short wave. The approach of the probe rod T to the high-voltage part of the ignition device ensures an exact and delimited display of the high-frequency pulses through the inevitable dosage of energy, while z. B. other glitches due to low intensity are not displayed. «-As compared to already known institutions, such as B. ignition voltage testers, etc., represents a significant advantage. So it is possible. With this device, the presence of the spark on the spark plug can be verified and displayed from outside under the actual operating conditions.

Claims (2)

PATENTANSPRÜCHE: i. Schaltanordnung zum Prüfen der Zündfunken von Zündkerzen mit einem UKW-Empfänger, gekennzeichnet durch einen Hochfrequenzschwingungskreis, der auf die hochfrequenten elektrischen Wellen eines Zündfunkens im Bereich von 5 bis 1 @ m abgestimmt ist, und der kapazitiv an das Steuergitter einer Elektronenröhre (V) angeschlossen ist, deren Anodenwiderstand durch eine, finit einem Kondensator in Reihe liegende Glimmlampe (Cl) überbrückt ist, die Zündfunken im Wellenbereich zwischen 5 und 1 5 m anzeigt. PATENT CLAIMS: i. Switching arrangement for checking the spark of spark plugs with a VHF receiver, characterized by a high-frequency oscillating circuit, which is tuned to the high-frequency electrical waves of an ignition spark in the range of 5 to 1 @ m, and which is capacitively connected to the control grid of an electron tube (V) whose anode resistance is bridged by a glow lamp (Cl), which is connected in series with a capacitor and which displays ignition sparks in the wave range between 5 and 15 m. 2. Schaltanordnung nach .-lnspruch i, gekennzeichnet durch einen "Faststab (T ). der mit dem Hochfrequenzschwingutigskreis verbunden ist und bei Annäherung an den Hochspannungsteil der Zündeinrichtung die Spannungsstöße der Zündfunken induktix- auf den Hochfrequenzschwingungskreis überträgt.2. Switching arrangement according to.-Lnspruch i, marked by a "fast rod (T)" which is connected to the high-frequency oscillating circuit and when approaching the high-voltage part of the ignition device, the voltage surges the ignition spark induktix- transmits to the high-frequency oscillation circuit.
DEF853A 1950-02-17 1950-02-17 Ignition spark tester by means of a VHF pulse receiver Expired DE828460C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF853A DE828460C (en) 1950-02-17 1950-02-17 Ignition spark tester by means of a VHF pulse receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF853A DE828460C (en) 1950-02-17 1950-02-17 Ignition spark tester by means of a VHF pulse receiver

Publications (1)

Publication Number Publication Date
DE828460C true DE828460C (en) 1952-01-17

Family

ID=7082576

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF853A Expired DE828460C (en) 1950-02-17 1950-02-17 Ignition spark tester by means of a VHF pulse receiver

Country Status (1)

Country Link
DE (1) DE828460C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932872C (en) * 1953-07-17 1955-11-17 Bosch Gmbh Robert Testing device for ignition systems of motor vehicle internal combustion engines
EP0699870A1 (en) * 1994-08-31 1996-03-06 General Motors Corporation Combustion detection circuit for a catalytic converter preheater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932872C (en) * 1953-07-17 1955-11-17 Bosch Gmbh Robert Testing device for ignition systems of motor vehicle internal combustion engines
EP0699870A1 (en) * 1994-08-31 1996-03-06 General Motors Corporation Combustion detection circuit for a catalytic converter preheater

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