DE454338C - Two-stroke internal combustion engine with air-cooled cylinder - Google Patents

Two-stroke internal combustion engine with air-cooled cylinder

Info

Publication number
DE454338C
DE454338C DEW68452D DEW0068452D DE454338C DE 454338 C DE454338 C DE 454338C DE W68452 D DEW68452 D DE W68452D DE W0068452 D DEW0068452 D DE W0068452D DE 454338 C DE454338 C DE 454338C
Authority
DE
Germany
Prior art keywords
air
cylinder
combustion engine
internal combustion
stroke internal
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
DEW68452D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEW68452D priority Critical patent/DE454338C/en
Application granted granted Critical
Publication of DE454338C publication Critical patent/DE454338C/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling
    • F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
    • F02F1/065—Shape or arrangement of cooling fins; Finned cylinders with means for directing or distributing cooling medium
    • 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
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/041—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of cylinder or cylinderhead positioning
    • F02B75/042—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of cylinder or cylinderhead positioning the cylinderhead comprising a counter-piston

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

Zweitakt-Brennkraftmaschine mit luftgekühltem Zylinder. Die Erfindung bezieht sich auf eine Zweitakt-Brennkraftmaschine mit luftgekühlten Zylindern. Die Maschine ist in bekannter Weise mit einem verstellbaren Zylinderdeckel versehen, um eine Veränderung des Kompressionsraumes zu erzielen. Diese bekannte Anordnung hat den Nachteil, daß der Zylinderdeckel infolge der hohen Erwärmung festbrennt und im allgemeinen durch die Einwirkung der Wärme schwer verstellt werden kann. Dieser Nachteil wird gemäß der Erfindung dadurch behoben, daß die Spülluft oberhalb des Zylinderdeckels eintritt und durch Öffnungen der Wandung des als Hohlkörper ausgebildeten Zylinderdeckels in den Kühlmantel zum unteren Zylinderende streicht. Es findet auf diese Weise eine ständige Kühlung des Zylinderdeckels an der Lagerstelle desselben statt. Das Zylinderende ist mit vom Arbeitskolben gesteuerten Schlitzen versehen, durch die ein Teil der zur Kühlung dienenden Luftmenge strömt und zur Zylinderspülung verwendet wird.Two-stroke internal combustion engine with air-cooled cylinder. The invention relates to a two-stroke internal combustion engine with air-cooled cylinders. the The machine is provided with an adjustable cylinder cover in a known manner, to change the compression space. This known arrangement has the disadvantage that the cylinder cover burns up due to the high level of heating and generally difficult to adjust due to the action of heat. This disadvantage is eliminated according to the invention in that the scavenging air above of the cylinder cover enters and through openings in the wall of the hollow body trained cylinder cover strokes in the cooling jacket to the lower end of the cylinder. In this way, there is constant cooling of the cylinder cover at the bearing point the same place. The cylinder end has slots controlled by the working piston provided through which part of the amount of air used for cooling flows and to Cylinder flushing is used.

Die Erfindung ist auf der Zeichnung beispielsweise dargestellt, und zwar zeigt Abb. i einen Längsschnitt durch die Brennkraftmaschine.The invention is shown in the drawing, for example, and although Fig. i shows a longitudinal section through the internal combustion engine.

Abb.2 ist eine Ansicht des Zylinderdeckels.Fig.2 is a view of the cylinder cover.

Mit i ist der als Hohlkörper ausgebildete Zylinderdeckel bezeichnet, welcher auf einen Teil seines Mantels mit Flachgewinde 2 versehen ist. Das Gewinde greift in ein entsprechendes Innengewinde des Deckellagers 3 ein, so daß der Zylinderdeckel i unter Verwendung des Hebels 13 auf und nieder geschraubt werden kann, wodurch eine Veränderung des Kompressionsraumes erfolgt. Der Arbeitszylinder 7 ist von einen Kühlmantel 17, umgeben, und der Zylinderdeckel i besitzt Öffnungen i i, die einerseits mit dem Kühlmantel 12 und andererseits mit dem die Kühlluft zuführenden Kanal 1q in Verbindung stehen. Ferner sind am unteren Ende des Arbeitszylinders vom Arbeitskolben gesteuerte Schlitze vorgesehen, so daß die aus dem Kühlmantel 12 tretende Luft zum Teil als Spülluft nach dem Eintritt in die Zylinderschlitze benutzt werden kann. Diese Luft hat, vorher aus dem Kühlluftkanal 1q. kommend, eine ausgiebige Kühlwirkung auf den hohl ausgebildeten Zylinderdeckel i ausgeübt. Im Boden des Zylinderdeckels i ist in bekannter Weise die Zündkerze io eingeschraubt. Die Maschine ist von einem äußeren Mantel umgeben, in den die Zu- und Abfiußkanäle für das Gasgemisch bzw. die Abgase münden.The cylinder cover designed as a hollow body is denoted by i, which is provided with a flat thread 2 on part of its jacket. The thread engages in a corresponding internal thread of the cover bearing 3, so that the cylinder cover i can be screwed up and down using the lever 13, whereby there is a change in the compression space. The working cylinder 7 is of a Cooling jacket 17, surrounded, and the cylinder cover i has openings i i, on the one hand with the cooling jacket 12 and on the other hand with the channel 1q which supplies the cooling air stay in contact. Furthermore, the working piston is at the lower end of the working cylinder controlled slots provided so that the air emerging from the cooling jacket 12 to the Part can be used as purging air after entering the cylinder slots. This air has, previously from the cooling air duct 1q. coming, an extensive cooling effect exerted on the hollow cylinder cover i. In the bottom of the cylinder cover i, the spark plug io is screwed in in a known manner. The machine is from one outer jacket, in which the inflow and outflow channels for the gas mixture or the exhaust gases open.

Claims (1)

PATENTANSPRUCH: Zweitakt-Brennkraftmaschine mit luftgekühltem Zylinder mit zur Veränderung des Kompressionsraumes dienendem verstellbaren Zylinderdeckel, dadurch gekennzeichnet, daß die Kühlluft oberhalb des verstellbaren Zylinderdeckels (i) eintritt und durch Öffnungen (i i) in demselben durch den Kühlmantel (i2) zum unteren Zylinderende streicht, welches mit vom Arbeitskolben gesteuerten Schlitzen zur Entnahme einer Teilluftmenge zur Zylinderspülung versehen ist.PATENT CLAIM: Two-stroke internal combustion engine with air-cooled cylinder with adjustable cylinder cover to change the compression space, characterized in that the cooling air is above the adjustable cylinder cover (i) enters and through openings (i i) in the same through the cooling jacket (i2) to The lower end of the cylinder strokes, which is with the slots controlled by the working piston is provided to remove a partial amount of air for cylinder purging.
DEW68452D Two-stroke internal combustion engine with air-cooled cylinder Expired DE454338C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW68452D DE454338C (en) Two-stroke internal combustion engine with air-cooled cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW68452D DE454338C (en) Two-stroke internal combustion engine with air-cooled cylinder

Publications (1)

Publication Number Publication Date
DE454338C true DE454338C (en) 1928-01-05

Family

ID=7608100

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW68452D Expired DE454338C (en) Two-stroke internal combustion engine with air-cooled cylinder

Country Status (1)

Country Link
DE (1) DE454338C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE854126C (en) * 1948-10-02 1952-10-30 Kloeckner Humboldt Deutz Ag Air-cooled two-stroke internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE854126C (en) * 1948-10-02 1952-10-30 Kloeckner Humboldt Deutz Ag Air-cooled two-stroke internal combustion engine

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