DE643371C - Pistons for double-acting internal combustion engines - Google Patents

Pistons for double-acting internal combustion engines

Info

Publication number
DE643371C
DE643371C DEB169623D DEB0169623D DE643371C DE 643371 C DE643371 C DE 643371C DE B169623 D DEB169623 D DE B169623D DE B0169623 D DEB0169623 D DE B0169623D DE 643371 C DE643371 C DE 643371C
Authority
DE
Germany
Prior art keywords
double
piston
internal combustion
pistons
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
DEB169623D
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.)
MARIO BEHMANN DR ING
Original Assignee
MARIO BEHMANN DR ING
Publication date
Priority to DEB169623D priority Critical patent/DE643371C/en
Application granted granted Critical
Publication of DE643371C publication Critical patent/DE643371C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/002Double acting engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/02Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Kolben für doppelt wirkende Brennkraftmaschinen Die vorliegende Erfindung betrifft eine weitere Verbesserung der durch Patent 56,1 167 Klasse 46a1 geschützten Bauart einer doppelt @c-irkenden Zweitaktverbrennungskraftmaschine, und zwar ist sie auf eine wirksame Kühlung des Kolbens gerichtet, die so erfolgt, daß eine günstige Ableitung der bei den jew,@iligen Verbrennungshüben entstehenden überschüssigen Wärme an die wassergekühlten 1`eile des Motors möglich ist. Erfindungsgemäß besteht der Kolbenkopf aus zwei in den Mantel eingeschraubten Böden mit einem dazwischenliegenden Hohlraum.Pistons for double-acting internal combustion engines The present invention relates to a further improvement of the type of double-acting two-stroke internal combustion engine protected by patent 56.1 167 class 46a1, namely it is directed to an effective cooling of the piston, which takes place so that a favorable Dissipation of the excess heat generated during the respective combustion strokes to the water-cooled parts of the engine is possible. According to the invention, the piston head consists of two bases screwed into the jacket with a cavity in between.

Es hat sich durch Versuche herausgestellt, daß durch diese Anordnung einerseits vermieden wird, daß in beiden Totpunktstellungen immer die gleichen Teile des Kolbenbodens - -wenn auch von beiden Seiten - die überschüssige Wärme bei der Verbrennung aufzunehmen genötigt sind, wie dies bei Kolben gewöhnlicher Form der Fall wäre. Anderseits aber erreicht man, daß auf den der Wärme aufgezwungenen Ableitungswegen ein großer Teil der von dem jeiweiligen der Verbrennung ausgesetzten Boden aufgenommenen Wärme an wassergekühlte Teile abgebt, bevor sie an den anderen Boden gelangt.It has been found through experiments that by this arrangement on the one hand it is avoided that the same parts are always the same in both dead center positions of the piston crown - albeit from both sides - the excess heat in the Burning are compelled, as is the case with pistons of the ordinary shape Case would be. On the other hand, however, one achieves that on the dissipation paths imposed on the heat a large part of the soil taken up by the soil exposed to combustion Heat is given off to water-cooled parts before it reaches the other floor.

Auf der Zeichnung ist der Erfindungsgegenstand in einer beispielsweisen Ausführungsform dargestellt, und zwar zeigen: Abb. i den Kolben im Längsschnitt, Abb. 2 den eingebauten Kolben im oberen Totpunkt, Abb. 3 den eingebauten Kolben im unteren Totpunkt.The subject of the invention is shown in an exemplary manner in the drawing Embodiment shown, namely show: Fig. I the piston in longitudinal section, Fig. 2 shows the built-in piston at top dead center, Fig. 3 shows the built-in piston at bottom dead center.

Wie aus Abb. i ersichtlich, besteht der Kolbenkopf ans zwei getrennten Böden t und 2, die mittels Gewinde 3 in den Kolbenkörper .1 eingefügt sind, wodurch zwiscbcn ihnen ein leerer l',autn 5 entsteht. In der Abb.2 ist der Kolben im oberen Totpunkte. Der Boden i nimmt die überschüssige Wärme auf und leitet sie am Umfang an die Dichtungsringe 6, durch welche erfahrungsgemäß die Ableitung der überwiegenden Wärcnetnenge an die wassergekühlte Zylinderwandung 7 erfolgt. Nur ein ganz geringer Teil kann zum zweiten Boden 2 gelangen, für dessen Ableitung die gerade in dieser Kolbenstellung einsetzende Luftspülung vollkommen ausreicht.As can be seen from Fig. I, the piston head consists of two separate ones Bottoms t and 2, which are inserted by means of thread 3 in the piston body .1, whereby between them there is an empty l 'that appears on 5. In Fig.2 the piston is in the top Dead points. The bottom i absorbs the excess heat and conducts it around the circumference to the sealing rings 6, through which experience has shown the derivation of the predominant Heat quantity to the water-cooled cylinder wall 7 takes place. Just a very small one Part can get to the second floor 2, for its discharge the straight in this Air purging starting the piston position is completely sufficient.

Abb.3 zeigt den Kolben im unteren Totpunkt. In dieser Stellung empfängt nun der Boden 2 den Wärmeüberschuß, leitet ihn am Umfang und durch Vermittlung der Dichtungsringe 6 des Kolbens selbst und insbesondere durch die Dichtungsringe 8 des Gegenkolbens 9 an dessen wassergekühlte Wandung. Nur ein geringer überschuß wird bis zum oberen Boden i gelangen, und da in dieser Stellung wiederum die Luftspülung stattfindet, kann dieser L berschuß leicht durch die Spülluft abgeführt werden. In beiden Fällen ist die thermische Beanspruchung des Bodens nicht größer als bei einem einfach wirkenden Zweitaktkolben.Fig.3 shows the piston at bottom dead center. Receives in this position Now the bottom 2, the excess heat, conducts it to the extent and through the mediation of the Sealing rings 6 of the piston itself and in particular through the sealing rings 8 of the opposing piston 9 on its water-cooled wall. Only a small excess will get to the upper floor i, and there again the air purging in this position takes place, this excess can easily be removed by the purge air. In both cases, the thermal stress on the floor is no greater than with a single-acting two-stroke piston.

Es ergibt sich somit der Vorteil, daß der Kolben als Ganzes betrachtet einem gewöhnlichen Kolben für einfach wirkende Brennkraftmaschinen gleicht, jedoch in der Lage ist, der erhöhten thermischen Beanspruchung im doppelt wirkenden Motor standzuhalten.There is thus the advantage that the piston is viewed as a whole is similar to a common piston for single-acting internal combustion engines, however is able to withstand the increased thermal stress in the double-acting engine to withstand.

Claims (1)

PATENTANSPRUCH: Kolben für doppelt wirkende Brennkraftmaschinen nach Patent 564 167, dadurch gekennzeichnet, daß der Kolbenkopf aus zwei in den Mantel eingeschraubten getrennten Böden (1, 2;) und einem dazwischenliegenden Hohlraum (5) bcstcht.PATENT CLAIM: Pistons for double-acting internal combustion engines according to Patent 564 167, characterized in that the piston head consists of two in the jacket screwed in separate floors (1, 2;) and an intermediate cavity (5) bcstcht.
DEB169623D Pistons for double-acting internal combustion engines Expired DE643371C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB169623D DE643371C (en) Pistons for double-acting internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB169623D DE643371C (en) Pistons for double-acting internal combustion engines

Publications (1)

Publication Number Publication Date
DE643371C true DE643371C (en) 1937-04-07

Family

ID=7006368

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB169623D Expired DE643371C (en) Pistons for double-acting internal combustion engines

Country Status (1)

Country Link
DE (1) DE643371C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE832360C (en) * 1949-10-21 1952-02-25 Standard Motor Co Ltd Internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE832360C (en) * 1949-10-21 1952-02-25 Standard Motor Co Ltd Internal combustion engine

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