DE759329C - Spark plug - Google Patents
Spark plugInfo
- Publication number
- DE759329C DE759329C DES136462D DES0136462D DE759329C DE 759329 C DE759329 C DE 759329C DE S136462 D DES136462 D DE S136462D DE S0136462 D DES0136462 D DE S0136462D DE 759329 C DE759329 C DE 759329C
- Authority
- DE
- Germany
- Prior art keywords
- spark plug
- connection
- metal
- insulator
- ceramic
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/34—Sparking plugs characterised by features of the electrodes or insulation characterised by the mounting of electrodes in insulation, e.g. by embedding
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
- C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/20—Seals between parts of vessels
- H01J5/22—Vacuum-tight joints between parts of vessel
- H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive parts of vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/38—Selection of materials for insulation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/604—Pressing at temperatures other than sintering temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
- C04B2237/121—Metallic interlayers based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/52—Pre-treatment of the joining surfaces, e.g. cleaning, machining
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/62—Forming laminates or joined articles comprising holes, channels or other types of openings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/64—Forming laminates or joined articles comprising grooves or cuts
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
- C04B2237/704—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the ceramic layers or articles
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
- C04B2237/708—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the interlayers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/72—Forming laminates or joined articles comprising at least two interlayers directly next to each other
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
- C04B2237/765—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc at least one member being a tube
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/78—Side-way connecting, e.g. connecting two plates through their sides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
- H01J2893/0037—Solid sealing members other than lamp bases
- H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/939—Containing metal
- Y10S277/941—Aluminum or copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Spark Plugs (AREA)
Description
Zündkerze Die Erfindung bezieht sich auf eine Zündkerze mit einer Verbindung zwischen dem konisch ausgeführten keramischen Isolator und dem diesen umgebenden, ebenfalls. konischen Metallteil, die aus einem weichen, bei den an der Zündkerze herrschenden Temperaturen unschmelzib-aren Metall, wie Aluminium, besteht.Spark plug The invention relates to a spark plug having a Connection between the conical ceramic insulator and the latter surrounding, too. conical metal part, which consists of a soft, in the case of the Spark plug temperature prevailing infusible metal, such as aluminum, is made.
Es sind bereits Verbindungen keramischer und metallischer Bauteile von Zündkerzen bekannt, bei denen zwischen diesen Teilen eine weiche Metallschicht bzw. eine plastische Metallschicht angeordnet wird, in der Weise, daß auf den Isolator eine Kupferschicht auf elektrolytischem Wege aufgebracht wird, so däß sie mit vollkommener Anhaftung an dem Porzellanisolator verhärtet und daß diese Kupferschicht dann abgedreht und poliert wird. Ein solches Vorgehen ist jedoch nicht nur sehr umständlich und langwierig, sondern auch recht kostspielig und unwirtschaftlich, da dabei die Metallschicht verhältnismäßig dick sein muß, um die an ihr vorzunehmenden mechanischen Nachbearbeitungsmaßnahmen, auszuhalten, und ihr Baustoff zu einem erheblichen Teil abgedreht wird und damit in Verlust geht. Einfach eine lose Metallschicht zwischen den keramischen und metallischen Bauteilen anzuordnen, genügt wiederum nicht, um eine ausreichende Dichtung herbeizuführen.There are already connections between ceramic and metallic components known from spark plugs in which a soft metal layer between these parts or a plastic metal layer is arranged in such a way that on the insulator a copper layer is applied electrolytically, so that it is more perfect Adhesion to the porcelain insulator hardened and that this copper layer then turned off and is polished. However, such a procedure is not only very cumbersome and lengthy, but also quite costly and uneconomical, since it involves the metal layer relatively thick must be to the mechanical Post-processing measures, endure, and their building material to a significant extent is turned off and is thus lost. Just a loose metal layer in between To arrange the ceramic and metallic components is again not enough to create a sufficient seal.
Mit dem Vorschlag der Erfindung gelingt es demgegenüber auf außerordentlich einfache und wohlfeile Weise, bei Zündkerzen der eingangs erwähnten Art die bei solchen bisher auf Grund der nur schwer zu glättenden und genau zu bemessenden keramischen Oberflächen auftretenden Schwierigkeiten zu beseitigen und eine gasdichte Verbindung zwischen keramischen und metallischen Bauteilen zu erzielen, und zwar dadurch, daß man erfindungsgemäß diese Verbindung aus mindestens zwei Schichten von dünnen Folien bestehen läßt, deren jede Schicht dünner als 5,0 - 10-3 cm ist. Vorzugsweise werden hierbei in Weiterbildung der Erfindung die Folien etwa 7,5 # i o-4 cm dick gewählt.In contrast, the proposal of the invention succeeds extraordinarily simple and cheap way, with spark plugs of the type mentioned at the beginning such up to now due to the difficult to smooth and precisely dimensioned ceramic Eliminate surface difficulties and a gas-tight connection to achieve between ceramic and metallic components, namely that according to the invention, this compound consists of at least two layers of thin films can exist, each layer of which is thinner than 5.0-10-3 cm. Preferably be Here, in a further development of the invention, the foils are selected to be about 7.5 to 4 cm thick.
Bei einer Verbindung im Sinne der Erfindung erfolgt keine vollkommene Haftung zwischen dem weichen Metall, wie Aluminium o. dgl., und dem keramischen Baustoff und ist selbst dann, wenn die Kerze zusammengestellt worden ist und die Unregelmäßigkeiten des keramischen Baustoffes in die weiche Metallfolie aus Aluminium o. dgl. eingedrungen sind, der Grad der Verbindung zwischen Metall und keramischem Baustoff von einer gänzlich anderen Größenordnung als im Falle einer elektrolytisch abgelagerten Schicht. Trotzdem wird, wie schon erwähnt, eine gasdichte Verbindung erzielt und dürfte sich die Wirkung, an einer Schichtung von drei solchen dünnen Folien erläutert, etwa wie folgt erklären lassen.In the case of a connection within the meaning of the invention, there is no perfect connection Adhesion between the soft metal such as aluminum or the like and the ceramic Building material and is even if the candle has been put together and the Irregularities in the ceramic building material in the soft metal foil made of aluminum o. The like. Have penetrated, the degree of connection between metal and ceramic Building material of a completely different order of magnitude than in the case of an electrolytic one deposited layer. Nevertheless, as already mentioned, a gas-tight connection is achieved achieved and is likely to have the effect of a layering of three such thin ones Slides explained, for example as follows.
Die innerste Schicht wird von den Unregelmäßigkeiten des keramischen Werkstoffes durchdrungen. Die äußerste Schicht haftet an dem Metallteil und schafft so zusammen mit der zweckmäßig zusätzlich vorgesehenen dazwischenliegenden weiteren Schicht eine abstoßende gasdichte Verbindung zwischen innerster und äußerster Oberfläche. In diesem Sinne hat es seich in der Praxis sogar als besonders vorteilhaft erwiesen, etwa fünf solche vollständigen Schichten vorzusehen.The innermost layer is made up of the irregularities of the ceramic Material penetrated. The outermost layer adheres to the metal part and creates in this way together with the additional, expediently provided intervening Layer a repellent gas-tight connection between the innermost and the outermost surface. In this sense, it has even proven to be particularly advantageous in practice to provide about five such complete layers.
Bei alledem erhält die Zündkerze zweckmäß;igerweise einen. Metallkragen oder eine Metallmuffe, die mit ihr unter Verwendung der erfindungsgemäßen Verbindung gasdicht vereinigt ist. Die lösbare Verbindung zwischen Isolator und Kerzenkörper kann dann zwischen der Metallmuffe bzw. dem Metallkragen und dem Kerzenkörper bestehen. In der Zeichnung ist beispielsweise und schematisch die Herstellung einer gasdichten Verbindung im Sinne der Erfindung zwischen dem Isolator der Zündkerze und der ihn umgebenden Buchse veranschaulicht. Die Befestigung erfolgt in dem dargestellten Falle auf folgende Weise: Der Isolator io, der mit einem zapfhahnartigen Teil 18 versehen ist, wird mit ungefähr fünf Lagen einer Aluminiumfolie dicht umhüllt, die etwa 7,5 # io-4 cm dick ist. Die Folie i9 kann zunächst in der gewünschten ringförmigen Weise geschnitten werden, es kann aber auch der Teil 18 zunächst eingehüllt und die umhüllende Folie erst dann zu der gewünschten Größe beschnitten werden.With all of this, the spark plug appropriately receives one. Metal collar or a metal sleeve attached to it using the compound of the invention is combined gas-tight. The detachable connection between the insulator and the plug body can then exist between the metal sleeve or the metal collar and the candle body. In the drawing, for example and schematically, the production of a gas-tight Connection within the meaning of the invention between the insulator of the spark plug and him surrounding socket illustrates. The attachment takes place in the one shown Trap in the following way: The isolator io, which is fitted with a faucet-like part 18 is provided, is tightly wrapped with about five layers of aluminum foil, the is about 7.5 # io-4 cm thick. The foil i9 can initially be in the desired annular shape Way to be cut, but it can also be the part 18 initially wrapped and the enveloping film can only then be trimmed to the desired size.
Die Metallbuchse der Zündkerze hat einen Innenkonus, der dem Teil 18 entspricht. Er wird auf den foalienbedeckten Teil des Isolators unter genügendem Druck, z. B. einem solchen von i8o kg oder auch mehr, aufgepreßt. Die Wandstärke dieser Metallbuchse ist dabei vorzugsweise so dünn, daß sie sich während des Druckvorganges ausdehnt, wodurch die Folie sich eng zwischen sie und den Keramikisolator legt. Auf diese Weise wird eine vorzügliche gasdichte Verbindung zwischen der Buchse und dem Isolator erreicht. Die Verbindung zwischen der Buchse und der ihr anliegenden Isolatorschulter kann leicht durch entsprechendes Bearbeiten der einander berührenden Flächen gasdicht gemacht werden. Die gasdichte Verbindung zwischen dem Isolator und den Folien einerseits und den Folien und der Buchse andererseits wird durch den Druck des Zündkerzenrohres auf die Schulter 17 des Isolators aufrechterhalten.The metal socket of the spark plug has an inner cone that the part 18 corresponds. It is placed on the foalien-covered part of the isolator under sufficient Pressure, e.g. B. one of 180 kg or more, pressed on. The wall thickness this metal sleeve is preferably so thin that it is during the printing process expands, causing the foil to fit snugly between it and the ceramic insulator. In this way an excellent gas-tight connection between the socket and reached the isolator. The connection between the socket and the one adjacent to it Isolator shoulder can be easily removed by appropriately editing the touching one Surfaces are made gas-tight. The gas-tight connection between the insulator and the foils on the one hand and the foils and the socket on the other hand is through maintain the pressure of the spark plug tube on the shoulder 17 of the insulator.
Obgleich die Zeichnung nur einen Isolator mit zapfenartigem Fortsatz 18 zeigt, auf welchen die Folie aufgelegt wird, so ist der Erfindungsgedanke doch auch anwendbar auf Isolatoren mit parallelen Flächen. Ein Kragen oder eine Muffe kann, zur Herstellung der Verbindung auf die folienbedeckten Teile aufgezogen werden oder auch herunterhängen.Although the drawing only shows an insulator with a peg-like extension 18 shows on which the film is placed, that is the idea of the invention also applicable to insulators with parallel faces. A collar or a sleeve can be pulled onto the foil-covered parts to establish the connection or hang down.
Die Erfindung ermöglicht weiterhin auch die Erzielung einer gasdichten Verbindung zwischen dem elektrischen Kontakt der Zündkerze und dem oberen Ende des Isolators io. Diese wird durch einen Stapel von Unterlagscheiben. 2o aus dünner Aluminium- o. dgl. Folie erreicht, wie es oben beschrieben ist. Sie werden aufgelegt, bevor der elektrische Kontakt in den. Isolator eingeschraubt wird.The invention also makes it possible to achieve a gas-tight one Connection between the electrical contact of the spark plug and the upper end of the Isolator ok This is done by a stack of washers. 2o from thinner Aluminum or the like. Achieved foil, as described above. You are hung up before the electrical contact in the. Insulator is screwed in.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB14235/38A GB514661A (en) | 1938-05-12 | 1938-05-12 | Improvements in joints for ceramic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE759329C true DE759329C (en) | 1951-08-02 |
Family
ID=10037474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES136462D Expired DE759329C (en) | 1938-05-12 | 1939-03-24 | Spark plug |
Country Status (4)
Country | Link |
---|---|
US (1) | US2174913A (en) |
DE (1) | DE759329C (en) |
FR (1) | FR852280A (en) |
GB (1) | GB514661A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2489410A (en) * | 1946-11-25 | 1949-11-29 | Lewis F Hahn | Shielded spark plug |
US2701839A (en) * | 1949-02-05 | 1955-02-08 | Sherbinin William N De | Bottle or vase attached lamp support |
-
1938
- 1938-05-12 GB GB14235/38A patent/GB514661A/en not_active Expired
-
1939
- 1939-03-24 DE DES136462D patent/DE759329C/en not_active Expired
- 1939-03-28 FR FR852280D patent/FR852280A/en not_active Expired
- 1939-03-29 US US264778A patent/US2174913A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2174913A (en) | 1939-10-03 |
FR852280A (en) | 1940-01-27 |
GB514661A (en) | 1939-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1186959B (en) | Connection between carbon-containing electrodes using a double-conical threaded nipple to be cemented | |
DE1926097A1 (en) | Capacitor lead through with cast resin insulator | |
DE2327481C2 (en) | spark plug | |
DE759329C (en) | Spark plug | |
DE2144486A1 (en) | BURNER HOUSING FOR GAS DISCHARGE LAMPS MADE OF LIGHT TRANSLUCENT CERAMIC MATERIALS | |
DE2258159C2 (en) | Process for the production of a vacuum-tight electrical feedthrough in the glass wall of an electrical discharge tube | |
DE886326C (en) | Watertight installation of a deep-sea cable reel connected to the cores of deep-sea cables in a metal housing | |
CH660643A5 (en) | METHOD FOR PRODUCING A CAST RESIN ISOLATOR WITH CAPACITIVE FIELD CONTROL INSERTS. | |
DE1845848U (en) | JOINING A METAL CABLE SHEATH WITH A POLYAETHYLENE CABLE SHEATH. | |
DE745632C (en) | Arrangement for supporting the electrode system of an electron tube | |
DE1945746C3 (en) | Process for the production of porcelain objects with image motifs that become fully visible when backlit | |
DE704846C (en) | Electrical discharge vessel with one or more ceramic components at least partially forming the vacuum-tight vessel wall and a method for its manufacture | |
DE2217716A1 (en) | Sacrificial anode | |
DE865491C (en) | Electric power feedthrough | |
DE893974C (en) | Electrical bushing insulator | |
DE975816C (en) | Process for firing a disk-shaped ceramic dielectric with a high dielectric constant and a capacitor made from such a dielectric | |
DE1040636B (en) | Method and device for producing an electrical bushing with an insulating body made of glass | |
DE1903583U (en) | TUBULAR HIGH TENSION SHIELD RING. | |
DE363715C (en) | High-voltage wall bushing in switchgear | |
DE889630C (en) | Process for the production of tight penetrations | |
DE591762C (en) | Fire chamber for electrical switches | |
DE957700C (en) | Spark plugs, in particular shielded spark plugs for internal combustion engines | |
DE974113C (en) | Method for producing a vacuum-tight connection between the parts of a vacuum container, in particular an electrical discharge vessel, by means of a glass seal | |
DE965259C (en) | Capacitor for large capacities | |
DE537223C (en) | Rohrfoermiger electrical capacitor for Roentgenanlagen with Rohrfoermigem, at the ends by caps, in particular each with an occupancy connected metal caps, closed protective jacket made of insulating material |