DE472633C - Two-part piston with combustion chamber for internal combustion engines - Google Patents

Two-part piston with combustion chamber for internal combustion engines

Info

Publication number
DE472633C
DE472633C DEC39841D DEC0039841D DE472633C DE 472633 C DE472633 C DE 472633C DE C39841 D DEC39841 D DE C39841D DE C0039841 D DEC0039841 D DE C0039841D DE 472633 C DE472633 C DE 472633C
Authority
DE
Germany
Prior art keywords
piston
combustion chamber
internal combustion
part piston
combustion engines
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
DEC39841D
Other languages
German (de)
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.)
Ceskomoravska Kolben AS
Original Assignee
Ceskomoravska Kolben AS
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 Ceskomoravska Kolben AS filed Critical Ceskomoravska Kolben AS
Application granted granted Critical
Publication of DE472633C publication Critical patent/DE472633C/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0675—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/0015—Multi-part pistons
    • F02F3/0023—Multi-part pistons the parts being bolted or screwed together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Description

Zweiteiliger Kolben mit Verbrennungsraum für Brennkraftmaschinen Die bisher bekannten ein- oder mehrteiligen Kolben mit Verbrennungsraum für Brennkraftmaschinen besitzen gegenüber Kolben normaler Bauart den Nachteil eines größeren Kolbengewichtes, was dadurch bedingt wird, daß bei den bisher bekannten Kolben mit Verbrennungsraum letzterer durch volleEinsatz-bzw. Aufsatzstücke gebildet wird. Das Anwendungsgebiet derartiger Kolben war daher bisher trotz ihrer sonstigen Vorzüge sehr beschränkt, und es konnten Kolben mit Verbrennungsraum insbesondere dort nicht verwendet werden, wo das Gewicht des Kolbens möglichst klein sein soll.Two-part piston with combustion chamber for internal combustion engines hitherto known one-part or multi-part piston with combustion chamber for internal combustion engines have the disadvantage of a larger piston weight compared to pistons of normal design, which is due to the fact that in the previously known pistons with combustion chamber the latter through full deployment or. Attachments is formed. The area of application this type of piston was therefore very limited in spite of its other advantages, and pistons with a combustion chamber could not be used there, where the weight of the piston should be as small as possible.

Die Erfindung macht sich zur Aufgabe, einen zweiteiligen Kolben mit Verbrennungsraum für Brennkraftmaschinen- zu schaffen, der sich bei einfacher Bauart, insbesondere durch leichtes Gewicht, auszeichnet, dabei aber große Festigkeit besitzt und sich aus diesem Grunde für alle Verwendungszwecke eignet. Der Erfindung gemäß wird dies dadurch erreicht, daß die Teilfuge durch den im Kolben liegenden Verbrennungsraum ver-_ läuft.The invention makes itself the task of having a two-part piston To create combustion chamber for internal combustion engines, which is simple in construction, characterized in particular by its light weight, but at the same time has great strength and for this reason it is suitable for all purposes. According to the invention this is achieved in that the parting line through the combustion chamber located in the piston runs out.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung veranschaulicht. Abb. i zeigt den Kolben im Längsschnitt, Abb.-2 veranschaulicht eine Draufsicht auf den Kolben. Der Kolben ist in seiner Länge L nach in zwei Teile i, 2 derart unterteilt, daß die Teilfuge durch den Verbrennungsraum 6 geht. Der dem Arbeitsraum des Zylinders zugekehrte Kolbenteil i besteht aus einem ringförmigen Hohlkörper, dessen ringförmiger, einseitig offener Hohlraum i' von den Wandungsteilen 3, 4, 5 und 8 gebildet wird. Der schalenförmige Wandungsteil 3 bildet den einen Teil 6' des Verbrennungsraumes 6. Der Wandungsteil 5 bildet den Boden des Kolbens, und der Wandungsteil 8 stellt die Außenwandung des Kolbenteiles dar. In der Wandung 8 sind ringförmige Nuten g' zur Aufnahme von Kolbenringen g vorgesehen. Einige Kolbenringe sind auch im Kolbenteil 2 vorgesehen, so daß die Teilfuge zwischen i und 2 zwischen den Kolbenringen verläuft. In dem ringförmigen Hohlraum i' des Kolbenteiles i sind radiale Rippen io vorgesehen, welche die Wandungen 3, 4, 5, 8 miteinander verbinden und den hohlen Kolbenteil i versteifen.An exemplary embodiment of the invention is illustrated in the drawing. Fig. I shows the piston in longitudinal section, Fig. 2 illustrates a top view on the piston. The length L of the piston is divided into two parts i, 2 of this type divided so that the parting line goes through the combustion chamber 6. The one in the work room piston part i facing the cylinder consists of an annular hollow body, whose annular cavity i ', open on one side, is separated from the wall parts 3, 4, 5 and 8 is formed. The shell-shaped wall part 3 forms one part 6 ' of the combustion chamber 6. The wall part 5 forms the bottom of the piston, and the Wall part 8 represents the outer wall of the piston part. In wall 8 are annular grooves g 'provided for receiving piston rings g. Some piston rings are also provided in the piston part 2, so that the parting line between i and 2 between the piston rings. In the annular cavity i 'of the piston part i are radial ribs io are provided which connect the walls 3, 4, 5, 8 to one another and stiffen the hollow piston part i.

Die Kolbenteile i, 2 sind durch Schrauben i i zusammengehalten; diese verlaufen durch Angüsse 14 der Kolbenteile i und 2. Die Schraubenköpfe 16 sind in Ausnehmungen 17 der -: Bodenwandung 5 versenkt eingesetzt. Die Schraubenmuttern 18 werden durch Splinte ig in der angezogenen Lage. festgehalten. Der Kolbenteil 2 weist einen nach innen gerichteten ringförmigen Flansch 2o auf, in dessen Öffnung 2r schalenförmige Einsatzkörper 25, 26 lagern. Diese bilden die untere Abschlußwand des Verbrennungsraumes 6 und eine Schutzhülle. Die Einsatzkörper 25, 26 lagern mit ringförmigen vorspringenden Rändern 27, 28 in einer ringförmigen Ausnehmung 30 und sind zwischen den Teilen 32, 33 eingespannt.The piston parts i, 2 are held together by screws ii; these run through sprues 14 of the piston parts i and 2. The screw heads 16 are inserted sunk into recesses 17 of the bottom wall 5. The nuts 18 are locked in the tightened position by cotter pins. held. The piston part 2 has an inwardly directed annular flange 2o, in the opening 2r of which shell-shaped insert bodies 25, 26 are supported. These form the lower end wall of the combustion chamber 6 and a protective cover. The insert bodies 25, 26 are supported with annular protruding edges 27, 28 in an annular recess 30 and are clamped between the parts 32, 33.

Der Verlauf der Teilfuge durch den Verbrennungsraum 6 des Kolbens gewährleistet auch bei der für den Betrieb der Brennksaftmaschine günstigen kugel- oder eiförmigen Ausgestaltung des Verbrennungsraumes leichte Reinigung desselben sowie die Möglichkeit der leichtgewichtigen Ausbildung eines Teiles des Verbrennungsraumes 6 mit leicht einsetzbaren Schalen 25, 26. Überdies macht diese Teilfugenanordnung es möglich, den Kolbenteil z zwecks leichten Gewichtes und geringer Wärmeüberleitung vom Arbeitsraum des Zylinders zum Verbrennungsraum des Kolbens hohl auszubilden.The course of the parting line through the combustion chamber 6 of the piston guaranteed even with the spherical or egg-shaped design of the combustion chamber, easy cleaning of the same as well as the possibility of a lightweight design of part of the combustion chamber 6 with easily insertable trays 25, 26. In addition, this butt joint arrangement it is possible to use the piston part z for the purpose of light weight and low heat transfer to form hollow from the working chamber of the cylinder to the combustion chamber of the piston.

Claims (3)

PATENTANSPRÜCHE: i. Zweiteiliger Kolben mit Verbrennungsraum für Brennkraftmaschinen, dadurch gekennzeichnet, daß die Teilfuge durch den im Kolben liegenden Verbrennungsraum (6) geht. PATENT CLAIMS: i. Two-part piston with combustion chamber for internal combustion engines, characterized in that the parting line is formed by the combustion chamber located in the piston (6) goes. 2. ZweiteiligerKolben nach Anspruch i, dadurch gekennzeichnet, daB die Teilfuge zwischen den Kolbenringen des Kolbens verläuft, derart, daß beide Kolbenteile (i, 2) Kolbenringe besitzen. 2. Two-part piston according to claim i, characterized in that the Parting line between the piston rings of the piston runs in such a way that both piston parts (i, 2) have piston rings. 3. Zweiteiliger Kolben nach Anspruch z oder 2, dadurch gekennzeichnet, daB der dem Arbeitsraum des Zylinders zugekehrte Kolbenteil (i) aus einem ringförmigen Hohlkörper mit im Innern des Hohlraumes angeordneten Rippen (io) besteht.3. Two-part piston according to claim z or 2, characterized marked that the piston part (i) facing the working space of the cylinder from an annular hollow body with ribs arranged in the interior of the hollow space (io) exists.
DEC39841D 1926-05-26 1927-05-18 Two-part piston with combustion chamber for internal combustion engines Expired DE472633C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS472633X 1926-05-26

Publications (1)

Publication Number Publication Date
DE472633C true DE472633C (en) 1929-03-02

Family

ID=5452989

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC39841D Expired DE472633C (en) 1926-05-26 1927-05-18 Two-part piston with combustion chamber for internal combustion engines

Country Status (1)

Country Link
DE (1) DE472633C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931078C (en) * 1950-05-15 1955-08-01 Machines Thermiques S A R L So Pistons for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931078C (en) * 1950-05-15 1955-08-01 Machines Thermiques S A R L So Pistons for internal combustion engines

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