DE601815C - Cooled plunger for internal combustion engines - Google Patents

Cooled plunger for internal combustion engines

Info

Publication number
DE601815C
DE601815C DEM123372D DEM0123372D DE601815C DE 601815 C DE601815 C DE 601815C DE M123372 D DEM123372 D DE M123372D DE M0123372 D DEM0123372 D DE M0123372D DE 601815 C DE601815 C DE 601815C
Authority
DE
Germany
Prior art keywords
piston
cavity
internal combustion
combustion engines
plunger
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
DEM123372D
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Priority to DEM123372D priority Critical patent/DE601815C/en
Application granted granted Critical
Publication of DE601815C publication Critical patent/DE601815C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00Pistons 
    • F02F3/16Pistons  having cooling means
    • F02F3/18Pistons  having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/06Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Gekühlter Tauchkolben für Brennkraftmaschinen Es sind Tauchkolben für Brennkraftmaschinen bekannt, bei denen der zwischen dem Kolbenboden und dem Kolbenbolzenlager vorhandene Hohlraum während des Betriebes mit einem ständig zu- und abfließenden Kühlmittel angegefüllt ist. Diese Art der Kolbenkühlung hat den Nachteil, daß für die laufende Zu- und Abführung des Kühlmittels verwickelte Vorrichtungen, Posaunen, bewegliche Rohrleitungen o. dgl., erforderlich sind, die den ordnungsgemäßen Betrieb der Maschine leicht gefährden oder doch mindestens erschweren. Außerdem wird ein besonderer kostspieliger Rückkühler für das Kolbenkühlmittel notwendig.Cooled plunger for internal combustion engines There are plungers known for internal combustion engines, in which the between the piston crown and the Piston pin bearing existing cavity during operation with a constantly and draining coolant is filled. This type of piston cooling has the Disadvantage that devices involved in the ongoing supply and removal of the coolant, Trumpets, movable pipelines or the like, are required that the proper Slightly endanger the operation of the machine or at least make it difficult. aside from that a particularly expensive dry cooler for the piston coolant is necessary.

Bei den bekannten Tauchkolben, die einen allseitig geschlossenen Kühlmittelraum ohne Zu- und Abfluß besitzen, hat es sich gezeigt, daß das Kühlmittel allmählich verdampft und durch die Poren in der Kolbenwand hindurchtritt. Nach verhältnismäßig kurzer Betriebszeit entleert sich auf diese Weise der Kühlmittelhohlraum im Kolben vollkommen, so daß durch ungenügende Kühlung des Kolbens eine unmittelbare Gefahr für die Maschine entsteht.In the known plunger pistons, which have a coolant space that is closed on all sides have no inflow and outflow, it has been shown that the coolant gradually evaporates and passes through the pores in the piston wall. According to proportionately In this way, the coolant cavity in the piston is emptied for a short operating time completely, so that there is an immediate danger due to insufficient cooling of the piston for the machine.

Zur Vermeidung dieses Nachteiles wird erfindungsgemäß der allseitig geschlossene Hohlraum mit einer Zuflüßöffnung versehen, die diesen Raum mit dem Kolbenbolzenlager verbindet. Das Schmieröl, das durch die hohle Pleuelstange in das Kolbenbolzenlager gelangt, tritt von hier in den Kolbenhohlraum über und ergänzt immer wieder die um den in Dampfform durch die Poren der Kolbenwand entwichenen Teil verringerte Kühlölmenge. Um ein Zurückfließen in das Lager zu verhindern, ist in die Zuflußöffnung ein Rückschlagventil eingebaut.To avoid this disadvantage, according to the invention, the all-round closed cavity provided with an inflow opening that this space with the Gudgeon pin bearing connects. The lubricating oil that passes through the hollow connecting rod in the piston pin bearing arrives, passes from here into the piston cavity and supplements again and again that escaped in vapor form through the pores of the piston wall Partly reduced amount of cooling oil. In order to prevent it from flowing back into the camp a check valve is built into the inlet opening.

In der Zeichnung ist ein Ausführungsbeispiel eines Kolbens nach der Erfindung dargestellt, und zwar zeigen Abb. i einen Axialschnitt durch den Kolben in der Längsrichtung des Kolbenbolzens und Abb. 2 einen Axialschnitt durch den Kolben quer zum Kolbenbolzen.In the drawing is an embodiment of a piston according to the Invention shown, namely Fig. I show an axial section through the piston in the longitudinal direction of the piston pin and Fig. 2 shows an axial section through the piston across the piston pin.

In dem Kolbenkörper i ist das Kolbenbolzenlager derart angeordnet, daß die dem Kolbenboden 2 zugewandte Wandung 3 den Kolbenhohlraum 4 gegen die untere offene Stirnseite des Kolbens vollkommen abschließt. Die Bohrung 5, die durch die Lagerwandung 3 hindurchführt, verbindet die obere Hälfte des Kolbenbolzenlagers mit dem Kolbenhohlraum 4, so daß das durch die hohle Pleuelstange 7 und den Kolbenbolzen 8 zufließende Schmieröl in den Kolbenhohlraum 4 übertreten kann. Um ein Zurückfließen des Öles aus dem Hohlraum 4 zu verhindern, ist in die Bohrung 5. ein federbelastetes Rückschlagventil g eingebaut. Von der tiefsten Stelle des Kolbenhohlraumes 4 führt ein im Kolbenkörper = gelegener Kanal io zur unteren Stirnwand des Kolbens. Der Kanal io, der mit einem Verschlußstopfen ii versehen ist, dient zum Ablassen des Kühlöles aus dem Kolbenhohlraum 4.The piston pin bearing is arranged in the piston body i in such a way that that the piston head 2 facing wall 3, the piston cavity 4 against the lower completely closes off the open face of the piston. The hole 5 through the Bearing wall 3 passes through, connects the upper half of the piston pin bearing with the piston cavity 4, so that the through the hollow connecting rod 7 and the piston pin 8 inflowing lubricating oil can pass into the piston cavity 4. To flow back To prevent the oil from the cavity 4 is a spring-loaded in the bore 5 Check valve g built in. From the lowest point of the piston cavity 4 leads a channel located in the piston body = io to the lower end wall of the piston. Of the Channel io, which is provided with a plug ii, is used to drain the Cooling oil from the piston cavity 4.

Um den Kolbenhohlraum gelegentlich gründlich zu reinigen, ist bei dem dargestellten Ausführungsbeispiel der Kolben quer zu seiner Achse unterteilt, und zwar ist die Teilfuge 12 so gelegt, daß nach der Entfernung des den Kolbenboden 2 bildenden Kolbenkopfes 13 der Hohlraum q. freiliegt und leicht gereinigt werden kann. Der Kolbenkopf 13 ist mit dem den Kolbenbolzen 5 aufnehmenden Kolbenkörper i mittels langer Gewindebolzen 1q. und Haltemuttern 15 verbunden: Die Bolzen 1q. sind in den Kolbenkopf 13 eingeschraubt und durch am Kolbenkörper i angeordnete Augen 16 bis zur unteren Stirnwand des Kolbens hindurchgeführt. Diese Art der Befestigung hat den Vorteil, daß gegebenenfalls der Kolbenkopf 13 abgenommen werden kann, ohne den Kolben vollständig auszubauen. Das bedeutet nicht allein für die Reinigung des Kolbenhohlraumes q., sondern auch für eine eventuelle Auswechselung und Überholung des Kolbenkopfes 13 einen großen Vorzug.In order to occasionally thoroughly clean the piston cavity, in the illustrated embodiment the piston is divided transversely to its axis, namely the parting line 12 is placed so that after the removal of the piston head 13 forming the piston head 2, the cavity q. exposed and can be easily cleaned. The piston head 13 is connected to the piston body i, which receives the piston pin 5, by means of long threaded bolts 1q. and retaining nuts 15 connected: the bolts 1q. are screwed into the piston head 13 and passed through eyes 16 arranged on the piston body i to the lower end wall of the piston. This type of fastening has the advantage that, if necessary, the piston head 13 can be removed without completely dismantling the piston. This is a great advantage not only for cleaning the piston cavity q., But also for a possible replacement and overhaul of the piston head 13.

Claims (2)

PATENTANSPRÜCHE: i. Gekühlter Tauchkolben für Brennkraftmaschinen, insbesondere Dieselmaschinen, mit einem allseitig geschlossenen, ölgefüllten Hohlraum, dadurch gekennzeichnet, daß der Hohlraum (q.) - zwecks Ergänzung der Ölfüllung durch eine Bohrung (5) mit dem Kolbenbolzenlager in Verbindung steht, in die ein Rückschlagventil (g) eingebaut ist, das ein Rücklaufen des Öles aus dem Hohlraum (q.) in das Kolbenbolzenlager verhindert. PATENT CLAIMS: i. Cooled plunger for internal combustion engines, in particular diesel engines, with an oil-filled cavity that is closed on all sides, characterized in that the cavity (q.) - In order to supplement the oil filling through a bore (5) communicates with the piston pin bearing, into which a check valve (g) is installed, which prevents the oil from flowing back from the cavity (q.) into the piston pin bearing prevented. 2. Tauchkolben nach. Anspruch i, dadurch gekennzeichnet, daß von der tiefsten Stelle des Kolbenhohlraumes (q.) ein mit einem Abschlußstopfen (ii) versehener Entleerungskanal (io) zur unteren Stirnwand des Kolbens führt.2. Plunger after. Claim i, characterized in that of the lowest point of the piston cavity (q.) with a plug (ii) provided Emptying channel (io) leads to the lower end wall of the piston.
DEM123372D 1933-03-26 1933-03-26 Cooled plunger for internal combustion engines Expired DE601815C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM123372D DE601815C (en) 1933-03-26 1933-03-26 Cooled plunger for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM123372D DE601815C (en) 1933-03-26 1933-03-26 Cooled plunger for internal combustion engines

Publications (1)

Publication Number Publication Date
DE601815C true DE601815C (en) 1934-08-24

Family

ID=7330286

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM123372D Expired DE601815C (en) 1933-03-26 1933-03-26 Cooled plunger for internal combustion engines

Country Status (1)

Country Link
DE (1) DE601815C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572260A (en) * 1950-06-29 1951-10-23 Worthington Pump & Mach Corp Piston for internal-combustion engines
DE10022035A1 (en) * 2000-05-05 2001-11-08 Mahle Gmbh Internal combustion engine with built piston; has piston with base and lower part connected by screw having device in head to transfer oil from connecting rod to cooling chamber in piston

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572260A (en) * 1950-06-29 1951-10-23 Worthington Pump & Mach Corp Piston for internal-combustion engines
DE10022035A1 (en) * 2000-05-05 2001-11-08 Mahle Gmbh Internal combustion engine with built piston; has piston with base and lower part connected by screw having device in head to transfer oil from connecting rod to cooling chamber in piston
US6829977B2 (en) 2000-05-05 2004-12-14 Mahle Gmbh Combustion engine with a built-up piston

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