DE698001C - Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown - Google Patents

Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown

Info

Publication number
DE698001C
DE698001C DE1937B0177893 DEB0177893D DE698001C DE 698001 C DE698001 C DE 698001C DE 1937B0177893 DE1937B0177893 DE 1937B0177893 DE B0177893 D DEB0177893 D DE B0177893D DE 698001 C DE698001 C DE 698001C
Authority
DE
Germany
Prior art keywords
protective ring
piston
edge
pistons
internal combustion
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
DE1937B0177893
Other languages
German (de)
Inventor
Waldemar Borrmann
Albert Keune
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 DE1937B0177893 priority Critical patent/DE698001C/en
Application granted granted Critical
Publication of DE698001C publication Critical patent/DE698001C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/20—Rings with special cross-section; Oil-scraping rings

Description

Kolben für Brennkraftmaschinen mit einem am Kolbenbodenrand vorgesehenen winkelförmigen Schutzring Den Gegenstand der Erfindung bildet ein Kolben für Brennkraftmaschinen, der am. KolbenbodenrandmiteinemwinkelförmigenSchutzring versehen ist. In dieser Weise ausgebildete Kolben sind an sich bekannt. Bei einem dieser Kolben ist am Kolbenkopf ein umlaufender Ringkanal gebildet, dem das Öl vom. Kolben aus durch Schmierlöcher zugeführt wird. Der Wirkungsbereich des Öles geht bei dieser Ausführung nicht über den Ringkanal hinaus, und es kann auch eine Schmierung des Schutzringes von dem Ringkanal aus rkicht erfolgen. Bei einem anderen Kolben ist das Kolbenunterteil mit abgeschrägten Nuten versehen, die als Ölnuten dienen, die aber keinen Einfluß auf die Schmierung der Kolbenführungskante haben.Pistons for internal combustion engines with one provided on the edge of the piston crown angular protective ring The object of the invention is a piston for internal combustion engines, which is provided with an angular protective ring on the edge of the piston crown. In this Pistons designed in this way are known per se. One of these pistons is on the piston head a circumferential ring channel is formed, which the oil from. Piston out through lubrication holes is fed. The range of action of the oil does not go over with this version the ring channel out, and there can also be a lubrication of the guard ring of the Ring channel made from rkicht. In the case of a different piston, the piston lower part is provided with beveled grooves, which serve as oil grooves, but which have no influence on the lubrication of the piston leading edge.

Bei dem neuen Kolben läuft die den federnden ;Schutzring aufnehmende Kolbennut unterhalb des Ringes in eine schräge Kante aus,, und der so gebildete umlaufende Ölkanal steht in Verbindung mit imn Schutzring liegenden Ölnuten. Es wird hierdurch erreicht, daßbeim Arbeiten des Motors in den Ölkanälen ein Ölumlauf eintritt, der thermosyphonartig vor sich geht, d. h. daß ein Austausch des heißen Öles im 'Schutzring gegen kühleres Öl des an der Kolbenführung gebildeten Ölkanals erfolgt, wodurch die Kolbenführung ständig so weit abgekühlt ist, daß es nicht mehr zum. Festfressen eines Kolbens im Zylinder und auch nicht zur Bildung von Ölkohle kommen kann.In the case of the new piston, the one that receives the resilient, protective ring runs Piston groove below the ring in an inclined edge, and the so formed The circumferential oil channel is connected to the oil grooves in the protective ring. It This ensures that when the engine is working, oil circulates in the oil ducts occurs in a thermosyphon-like manner, d. H. that an exchange of the hot Oil in the 'protective ring against cooler oil of the oil channel formed on the piston guide takes place, whereby the piston guide is constantly cooled so far that it is no longer to the. A piston seizes up in the cylinder and does not lead to the formation of oil carbon can come.

In der Zeichnung ist ein Teil eines im Sinne der Erfindung ausgebildeten Kolbens beispielsweise im Schnitt dargestellt.The drawing shows a part of a device designed in accordance with the invention Piston shown for example in section.

Die bauliche Ausbildung des-Kolbens ist in der üblichen Form beibehalten worden. Der Kolben kann daher mit zwei oder mehr Kolbenringen a versehen sein. Am oberen Ende des Kolbenkopfes c ist in einer Ringnut fein winkelförmig ausgebildeter - Schutzring g in der üblichen Weise angeordnet: Der Kolbenboden h bzw. ein in diesen eingegossener Ring i aus gegen Ausbrennen widerstandsfähigem härterem@Material hält den Ring fest.The structural design of the piston is retained in the usual form been. Of the Pistons can therefore with two or more piston rings a be provided. At the upper end of the piston head c is finely angular in an annular groove trained - protective ring g arranged in the usual way: the piston head h or a ring i cast in this made of burnout resistant harder @ material holds the ring in place.

Im Kolbenkopf c sind in üblicher Weise Ölkanäle j gebildet; die in die Ringnut f münden, welche erfindungsgemäß am, äußeren Ende in eine abgeschrägte Kante k ausläuft, die einen ölkanalo bildet, der sich somit vor der Kolbenführungskante k befindet. Im Schutzring g ist eine umlaufende ölnutm gebildet, die durch: senkrechte Nuten n mit dem Ölkanal o verbunden ist.In the piston head c oil channels j are formed in the usual way; which open into the annular groove f, which according to the invention terminates at the outer end in a beveled edge k , which forms an oil channel, which is thus located in front of the piston guide edge k. A circumferential oil groove is formed in the protective ring g, which is connected to the oil channel o by: vertical grooves n.

Es findet hierdurch ein ununterbrochener Umlauf des Öles von dem. Ringkanal o aus durch die Nuten m, rt des Schutzringes statt, wodurch eine starke Herabsetzung der Ternperatur der Kolbenführung erfolgt, die ein Festfressen. eines Kolbens im Zylinder verhindert und ebenso auch keine Bildung von Ölkohle zuläßt. Außerdem wird erreicht, daß beim Starten sofort genügend Öl vorhanden ist, .was ebenfalls dazu beiträgt, daß die vorstehend geschilderten Nachteile nicht eintreten können.Thereby there is an uninterrupted circulation of the oil from the. Annular channel o out through the grooves m, rt of the protective ring instead, which results in a strong reduction in the temperature of the piston guide, which causes seizure. prevents a piston in the cylinder and also does not allow the formation of oil carbon. In addition, it is achieved that there is enough oil immediately when starting, .which also contributes to the fact that the disadvantages described above cannot occur.

Claims (1)

PATRNTANSPRUCH: Kolben für Brennkraftmaschinen mit einem am Kolbenbodenrand vorgesehenen winkelförmigen Schutzring, dadurch gekennzeichnet, däß die den federnden Schutzring (g) aufnehmende Kolbennut (f unterhalb des Ringes in eine abgeschrägte Kante (k) ausläuft und der so gebildete, umlaufende Ölkanal (o) in Verbindung mit im. Schutzring _(g) liegenden Ölnuten (m, _n) steht.PATENT CLAIM: Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown, characterized in that the piston groove (f) accommodating the resilient protective ring (g) runs out below the ring into a beveled edge (k) and the surrounding oil channel (o) thus formed into Connection with the oil grooves (m, _n) located in the protective ring _ (g).
DE1937B0177893 1937-03-28 1937-03-28 Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown Expired DE698001C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1937B0177893 DE698001C (en) 1937-03-28 1937-03-28 Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937B0177893 DE698001C (en) 1937-03-28 1937-03-28 Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown

Publications (1)

Publication Number Publication Date
DE698001C true DE698001C (en) 1940-10-30

Family

ID=7008284

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1937B0177893 Expired DE698001C (en) 1937-03-28 1937-03-28 Pistons for internal combustion engines with an angular protective ring provided on the edge of the piston crown

Country Status (1)

Country Link
DE (1) DE698001C (en)

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