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DE1008962B - Fully shielded spark plug with plastic insulating body for internal combustion engines - Google Patents

Fully shielded spark plug with plastic insulating body for internal combustion engines

Info

Publication number
DE1008962B
DE1008962B DEM20088A DEM0020088A DE1008962B DE 1008962 B DE1008962 B DE 1008962B DE M20088 A DEM20088 A DE M20088A DE M0020088 A DEM0020088 A DE M0020088A DE 1008962 B DE1008962 B DE 1008962B
Authority
DE
Germany
Prior art keywords
insulating body
spark plug
internal combustion
combustion engines
plastic insulating
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
DEM20088A
Other languages
German (de)
Inventor
Hugo Matissek
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 DEM20088A priority Critical patent/DE1008962B/en
Publication of DE1008962B publication Critical patent/DE1008962B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00Sparking plugs
    • H01T13/20Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/36Sparking plugs characterised by features of the electrodes or insulation characterised by the joint between insulation and body, e.g. using cement
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00Sparking plugs
    • H01T13/20Sparking plugs characterised by features of the electrodes or insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T21/00Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
    • H01T21/02Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

Vollabgeschirmte Zündkerze mit Kunststoffisolierkörper für Brennkraftmaschinen Es ist bereits bekannt, den Isolierkörper von nicht abgeschirmten Zündkerzen teilweise aus organischen Werkstoffen, z. B. Kunstharz, und teilweise aus anorganischen Werkstoffen, wie z. B. Keramik, Quarz. Glas od. dgl., herzustellen. Für den in den Verbrennungsraurn hineinragenden Teil des Isolierkörpers verwendet inan hitzebeständige anorganische Werk-Stoffe. Die beiden Teile aus verschiedenen Werkstoffen wurden durch Pressen miteinander und auch mit dem metallischen Kerzenkörper verbunden. Es ist ohne weiteres verständlich, daß die Herstellung derart aufgebauter "Zündkerzen wesentliche Schwierigkeiten mit sich brachte und daß bei diesen insbesondere die Gasabdichtung nicht den gestellten Forderungen genügte.Fully shielded spark plug with plastic insulating body for internal combustion engines It is already known to partially use the insulator of unshielded spark plugs made of organic materials, e.g. B. synthetic resin, and partly made of inorganic materials, such as B. ceramics, quartz. Glass or the like. To produce. For the one in the combustion chamber protruding part of the insulating body used inan heat-resistant inorganic Plant fabrics. The two parts made of different materials were made by pressing connected to each other and also to the metallic candle body. It is straightforward It is understandable that the manufacture of "spark plugs constructed in this way" poses significant difficulties brought with it and that with these in particular the gas seal is not provided Demands sufficed.

Die Erfindung hat sich die Aufgabe gestellt, die genannten Schwierigkeiten zu vermeiden und bei wesentlich vereinfachter Herstellung gleichzeitig eine Vollabschirmung der Zündkerze zu erzielen. Erfindungsgemäß wird dies dadurch erreicht, daß ein Kunststoffisolierkörper den Kerzenkörper und die Abschirinhülse in voller Höhe auskleidet und daß er gegen den Brennraum durch ein eingepreßtes, an sich bekanntes Keramikröhrchen für die Mittelelektrode und eineu bekannten Kupferformteil zwischen Keramikröhrchen und Kerzenkörper abgedeckt ist. Der Kerzenkörper und die Abschirmhülse bilden die Form für die Herstellung des Kunststoff isolierkörpers. Hierdurch ergibt sich der wesentliche Vorteil, daß der Isolierkörper in einem Arbeitsgang in den Stahlkörper der Zündkerzen eingespritzt, eingepreßt oder ,onstwie eingeformt «-erden kann, ohne daß weitere :arbeiten zur Befestigung und Abdichtung (z. B. Einbördeln, Einpressen, Einschrauben oder Einkitten) des Isolierkörpers erforderlich sind.The invention has set itself the task of solving the difficulties mentioned to avoid and at the same time full shielding with significantly simplified production to achieve the spark plug. According to the invention this is achieved in that a plastic insulating body lines the candle body and the Abschirinhülse in full and that he against the combustion chamber through a pressed-in, known ceramic tube for the Center electrode and a well-known copper molding between ceramic tubes and Candle body is covered. The candle body and the shielding sleeve form the shape for the production of the plastic insulator. This results in the essential Advantage that the insulating body in one operation in the steel body of the spark plugs injected, pressed in or, otherwise, molded in, "grounded," without further : work for fastening and sealing (e.g. flanging, pressing in, screwing in or cementing) of the insulating body are required.

Der Isolierkörper besteht aus einem Kunststoff auf der Basis voll Polytetrafluoräthylen und Polytrifluorchloräthylen bzw. Polymerisaten dieser Stoffe.The insulating body consists of a plastic on the full base Polytetrafluoroethylene and polytrifluorochloroethylene or polymers of these substances.

An einem Ausführungsbeispiel ist die 1#.rfindung näher erläutert. In der Zeichnung ist eine vollabgeschirnite Zündkerze dargestellt, die einen eingebauten @,\'iclerstalid aufweist.The invention is explained in more detail using an exemplary embodiment. The drawing shows a fully shielded spark plug that has a built-in @, \ 'iclerstalid.

leer Kerzenkörper l und die mit ihm aus einem Stück bestehende Abschirmhülse 1' der Zündkerze Sind in voller Höhe durch den Kunststoffisolierkörper 2 ausgekleidet. Der Isolierkörper 2 besteht aus einem thermoplastischen Kunststoff hoher Wärmebeständigkeit und wird in den Kerzenkörper eingepreßt, eingespritzt oder eingegossen. Gegen den Brennrauen ist der Isolierkörper 2 in bekannter Weise durch ein Keramikröhrchen 3 und einen Kupferformteil 6 allgedeckt. Das Keramikröhrchen ist in den Isolierkörper 2 eingepreßt und trägt die -Mittelelektrode 4. Mit 5 ist die Masseelektrode der Zündkerze bezeichnet. Der ringartige Kupferformteil6 ist zwi-Scheu dem Keramikröhrchen 3 und dem Kerzenkörper 1 eingepreßt. Der Isolierkörper 2 und die Abschirinhülse 1' umgeben in voller Länge den eingebauten Entstörwiderstand 7 und den Anschluß des Zündkabels 15. Der Entstörwiderstand 7 sitzt zündseitig in einem Ring 8, der gleichzeitig die Mittelelektrode 4 festhält. Anschlußseitig drücken Federn 12, die in einer im Isolierkörper 2 befestigten Buchse 11 angeordnet sind, einen Stecker 10 gegen seine Stirnseite. Über den Stecker 10 greift die Buchse 13 des Zündkabels 15. Das Anschlußende von Kerzenkörper 1 mit Isolierkörper 2 ist durch eine metallische L`berwurfmutter 14 abgeschlossen.empty candle body l and the shielding sleeve consisting of one piece with it 1 'of the spark plug are lined in full by the plastic insulating body 2. The insulating body 2 consists of a thermoplastic material of high heat resistance and is pressed, injected or poured into the candle body. Against the The insulating body 2 is fired in a known manner by means of a ceramic tube 3 and a molded copper part 6 all covered. The ceramic tube is in the insulating body 2 pressed in and carries the center electrode 4. With 5 the ground electrode is the Called spark plug. The ring-like shaped copper part6 is between the ceramic tube 3 and the candle body 1 pressed. The insulating body 2 and the shielding sleeve 1 'surround the built-in interference suppression resistor 7 and the connection in full length of the ignition cable 15. The interference suppression resistor 7 sits on the ignition side in a ring 8, the at the same time holding the center electrode 4. On the connection side press springs 12, the are arranged in a socket 11 fixed in the insulating body 2, a plug 10 against its face. The socket 13 of the ignition cable engages via the plug 10 15. The connection end of the plug body 1 with the insulating body 2 is through a metallic Union nut 14 completed.

Claims (3)

PATENTANSPRÜCHE: 1. Vollabgeschirmte Zündkerze für Brennkraftniaschinen mit einem Isolierkörper aus thermoplastischem Kunststoff, der zündseitig ein Teil aus einem hitzebeständigen Stoff aufweist, dadurch gekennzeichnet, daß der Kunststoffisolierkörper (2) Kerzenkörper (1) und Abschirmhülse (1') in voller Höhe auskleidet und daß er gegen den Brennraum durch ein eingepreßtes, an sich bekanntes Keramikröhrchen (3) für die Mittelelektrode (4) und einen bekannten Kupferformteil (6) zwischen Keramikröhrchen (3) und Kerzenkörper (1) abgedeckt ist. PATENT CLAIMS: 1. Fully shielded spark plug for internal combustion engines with an insulating body made of thermoplastic material, which is a part on the ignition side made of a heat-resistant material, characterized in that the plastic insulating body (2) Candle body (1) and shielding sleeve (1 ') lined in full and that he against the combustion chamber through a pressed-in, known ceramic tube (3) for the center electrode (4) and a known molded copper part (6) between ceramic tubes (3) and candle body (1) is covered. 2. Zündkerze nach Anspruch 1, dadurch gekennzeichnet, daß Kerzenkörper (1) und Abschirmhülse (1') die Form für die Herstellung des Kunststoffisolierkörpers (2) bilden. 2. Spark plug according to claim 1, characterized in that that the candle body (1) and shielding sleeve (1 ') form the form for the production of the plastic insulating body (2) form. 3. Zündkerze nach Anspruch 1, dadurch gekennzeichnet, daß der Isolierkörper (2) aus einem Kunststoff auf der Basis von Polytetrafluoräthylen oder Polytrifluorchloräthylen bzw. aus Polvinerisaten dieser Stoffe besteht.3. Spark plug according to claim 1, characterized in that the insulating body (2) made of a plastic based on polytetrafluoroethylene or polytrifluorochloroethylene or from polvineries of these substances.
DEM20088A 1953-09-18 1953-09-18 Fully shielded spark plug with plastic insulating body for internal combustion engines Pending DE1008962B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM20088A DE1008962B (en) 1953-09-18 1953-09-18 Fully shielded spark plug with plastic insulating body for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM20088A DE1008962B (en) 1953-09-18 1953-09-18 Fully shielded spark plug with plastic insulating body for internal combustion engines

Publications (1)

Publication Number Publication Date
DE1008962B true DE1008962B (en) 1957-05-23

Family

ID=7298134

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM20088A Pending DE1008962B (en) 1953-09-18 1953-09-18 Fully shielded spark plug with plastic insulating body for internal combustion engines

Country Status (1)

Country Link
DE (1) DE1008962B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10129125A1 (en) * 2001-06-16 2003-01-02 Bosch Gmbh Robert spark plug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE442601C (en) * 1925-06-14 1927-09-27 Franz Wolff Spark plug
DE468370C (en) * 1926-09-05 1928-11-12 Franz Wolff Process for the production of spark plugs for internal combustion engines
DE469673C (en) * 1926-10-17 1928-12-19 Franz Wolff Spark plug
DE680250C (en) * 1936-12-02 1939-08-24 Bosch Gmbh Robert Process for the production of ceramic products, in particular spark plug stones
DE681407C (en) * 1937-07-07 1939-09-21 Dr Karl Nittka Spark plug
DE899577C (en) * 1951-11-24 1953-12-14 Nienburger Metallwarenfabrik A Spark plug with adjustable heat value
DE902692C (en) * 1951-11-24 1954-01-25 Nienburger Metallwarenfabrik A Spark plug, especially shielded spark plug

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE442601C (en) * 1925-06-14 1927-09-27 Franz Wolff Spark plug
DE468370C (en) * 1926-09-05 1928-11-12 Franz Wolff Process for the production of spark plugs for internal combustion engines
DE469673C (en) * 1926-10-17 1928-12-19 Franz Wolff Spark plug
DE680250C (en) * 1936-12-02 1939-08-24 Bosch Gmbh Robert Process for the production of ceramic products, in particular spark plug stones
DE681407C (en) * 1937-07-07 1939-09-21 Dr Karl Nittka Spark plug
DE899577C (en) * 1951-11-24 1953-12-14 Nienburger Metallwarenfabrik A Spark plug with adjustable heat value
DE902692C (en) * 1951-11-24 1954-01-25 Nienburger Metallwarenfabrik A Spark plug, especially shielded spark plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10129125A1 (en) * 2001-06-16 2003-01-02 Bosch Gmbh Robert spark plug

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