DE862076C - Air-cooled internal combustion engine with an adjoining room in the cylinder head - Google Patents

Air-cooled internal combustion engine with an adjoining room in the cylinder head

Info

Publication number
DE862076C
DE862076C DEP2743D DEP0002743D DE862076C DE 862076 C DE862076 C DE 862076C DE P2743 D DEP2743 D DE P2743D DE P0002743 D DEP0002743 D DE P0002743D DE 862076 C DE862076 C DE 862076C
Authority
DE
Germany
Prior art keywords
cooling
air
cooling air
adjoining room
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
DEP2743D
Other languages
German (de)
Inventor
Anton Dr-Ing Pischinger
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 DEP2743D priority Critical patent/DE862076C/en
Application granted granted Critical
Publication of DE862076C publication Critical patent/DE862076C/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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/28—Cylinder heads having cooling means for air cooling
    • F02F1/30—Finned cylinder heads
    • F02F1/32—Finned cylinder heads the cylinder heads being of overhead valve type
    • 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/14—Engines characterised by precombustion chambers with compression ignition
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/16—Indirect injection
    • 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

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

Die Erfindung bezieht sich auf luftgekühlte Brennkraftmaschinen mit einem Nebenraum (Vorkammer, -, Wälzkammer od. dgl.), in den der Brennstoff eingespritzt wird und der sich innerhalb eines sich auf dem Zylinderkopf erhebenden 'mit Kühlrippen besetzten Körpers befindet. Die Kühlung dieses thermisch sehr hoch beanspruchten Nebenraumkörpers bereitet insbesondere bei Viertaktmaschinen erhebliche Schwierigkeiten. Bei der Zufuhr. der Kühlluft an der Maschinenseite, an der sich die Ein- und Auslaßventile befinden, liegt der Nebenraumkörper im wesentlichen im Strömungsschatten der Ventilkanäle und erhält nur durch den. Zwischenraum zwischen diesen eine beschränkte Menge hoch vorgewärmter Kühlluft. Bei der Zufuhr der Kühlluft in entgegengesetzter Richtung liegt der Nebenraumkörper im Staugebiet der Kühlluft. Es kommt deshalb an der Vorderseite des Körpers keine ausreichende Kühlluftströmung zustande.The invention relates to air-cooled internal combustion engines with an adjoining room (pre-chamber, rolling chamber or the like) into which the fuel is injected and the inside of a 'rising on the cylinder head' with cooling fins occupied body is located. The cooling of this thermally very high stressed Side room body causes considerable difficulties, especially in four-stroke machines. When feeding. the cooling air on the machine side, where the inlet and outlet valves are located are located, the adjacent space body is essentially in the flow shadow of the valve channels and only receives through the. Space between these a limited amount high preheated cooling air. When supplying the cooling air in the opposite direction the body of the adjoining room lies in the stagnation area of the cooling air. It therefore comes on the front the body does not have a sufficient flow of cooling air.

Gemäß der Erfindung ist bei Zufuhr der Kühlluft an der Maschinenseite, an der sich der Nebenraumkörper befindet, die der Kühlluftzufuhr zugewandte Seite des Nebenraumkörpers mit in Zylinderlängsrichtung verlaufenden Kühlrippen besetzt, die bis auf eine Lufteintrittsöffnung durch ein Kühlluftleitblech abgedeckt sind. An dem der Lufteintrittsöffnung entgegengesetzten Ende der Kühlrippen ist ein Kühlluftabzugskanal vorgesehen, welcher die aus den Räumen zwischen den Kühlrippen austretende Kühlluft ins Freie oder abwärts in den Zylinderkühlraum führt. Hierdurch wird zwischen den Rippen des Nebenraumkörpers eine kräftige Luftströmung erzwungen, die eine nachhaltige Kühlung des Körpers an der der Kühlluftzufuhr zugewandten Seite gewährleistet. Diese Kühlluftführung am Nebenraumkörper ist selbstverständlich auch bei durch den Arbeitskolben gesteuerten Zweitaktmaschinen anwendbar.According to the invention, when the cooling air is supplied on the machine side, on which the adjoining room body is located, the side facing the cooling air supply the body of the adjoining room is filled with cooling fins running in the longitudinal direction of the cylinder, which are covered by a cooling air baffle except for an air inlet opening. At the end of the cooling ribs opposite the air inlet opening is a cooling air outlet duct provided, which the exiting from the spaces between the cooling fins cooling air leads into the open air or down into the cylinder cooling chamber. This is between the Ribs of the adjoining room body forced a powerful flow of air, which is sustained Guaranteed cooling of the body on the side facing the cooling air supply. These Cooling air routing on the adjoining room body is of course also through the working piston controlled two-stroke machines applicable.

In der- Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.In the drawing is an embodiment of the subject matter of the invention shown.

Abb. i zeigt einen Längsschnitt durch den Zylinderkopf; Abb. 2 zeigt einen Schnitt nach Linie A-A in Abb. z. Der Nebenraum i, im vorliegenden Ausführungsbeispiel eine Wälzkammer, befindet sich innerhalb eines sich frei auf dem Zylinderdeckel 2 erhebenden Körpers 3. Die Kühlluftzufuhr erfolgt in Richtung der Pfeile über einen vom Kühlgebläse beschickten Kühlluftaufnehmer q. an der Seite der Maschine, an der sich der Nebenraumkörper befindet. Letzterer ist an der der Kühlluftzufuhr zugewandten Seite' mit in Zylinderlängsrichtung verlaufenden Kühlrippen 5 besetzt. Die Kühlrippen 5 sind durch ein Kühlluftleitblech 6 bis auf eine Lufteintrittsöffnung 7 abgedeckt. An dem der Lufteintrittsöffnung entgegengesetzten Ende der Kühlrippen ist ein Kühlluftabzugskanal8 vorgesehen, welcher die zwischen den Rippen austretende Luft, wie in der Zeichnung dargestellt, unmittelbar ins Freie führt. Die Kühlluftcintrittsöffnung kann auch am oberen Ende der Kühlrippen 5 vorgesehen sein. Der Kühlluftabzugskanal8 befindet sich dann am unteren Ende der Kühlrippen und mündet vorzugsweise in den ebenfalls durch Kühlluftleitbleche gebildeten Kühlraum am Zylinderumfang oder zwischen zwei benachbarten Zylindern, so daß die vom Nebenraumkörper kommende Luft sich mit der Zylinderkühlluft mischt und mit ihr durch die Zylinderkühlräume geführt wird.Fig. I shows a longitudinal section through the cylinder head; Fig. 2 shows a section along line A-A in Fig. The side room i, in the present exemplary embodiment a rolling chamber, is located within a freely on the cylinder cover 2 uplifting body 3. The cooling air is supplied in the direction of the arrows via a Cooling air receiver fed by the cooling fan q. on the side of the machine on which the body of the adjoining room is located. The latter is on the one facing the cooling air supply Side 'occupied with cooling fins 5 running in the longitudinal direction of the cylinder. The cooling fins 5 are covered by a cooling air baffle 6 except for an air inlet opening 7. At the end of the cooling ribs opposite the air inlet opening is a cooling air outlet channel8 provided, which the air escaping between the ribs, as in the drawing shown, leads directly into the open. The cooling air inlet opening can also be provided at the upper end of the cooling fins 5. The cooling air exhaust duct8 is located is then at the lower end of the cooling fins and preferably also opens into the Cooling space formed by cooling air baffles on the cylinder circumference or between two adjacent cylinders, so that the air coming from the side room body with the Mixes cylinder cooling air and is guided with her through the cylinder cooling chambers.

Claims (1)

PATENTANSPRUCH: Luftgekühlte Brennkraftmaschine mit einem Nebenraum (Vorkammer, Wälzkammer od. dgl.),-der sich innerhalb eines sich auf dem Zylinderkopf erhebenden mit Kühlrippen besetzten Körpers befindet, dadurch gekennzeichnet, daß bei Zufuhr der Kühlluft an der Maschinenseite, an der sich der Nebenraumkörper befindet, die der Kühlluftzufuhr zugewandten Seite des Nebenraumkörpers (3) mit in Zylinderlängsrichtung verlaufenden Kühlrippen (5) besetzt ist, die bis auf eine Kühllufteintrittsöffnung (7) durch ein Kühlluftleitblech (6) abgedeckt sind, und daß an dem der Lufteintrittsöffnung entgegengesetzten Ende der Kühlrippen ein Kühlluftabzugskanal (8) vorgesehen ist, welcher die aus den Räumen zwischen den Rippen austretende Kühlluft ins Freie oder abwärts in den Zylinderkühlraum führt.PATENT CLAIM: Air-cooled internal combustion engine with an adjoining room (Antechamber, rolling chamber or the like), - which is located within a on the cylinder head uplifting body occupied by cooling fins, characterized in that when the cooling air is supplied to the machine side on which the adjoining room body is located, the side of the adjoining space body (3) facing the cooling air supply in the longitudinal direction of the cylinder running cooling fins (5) is occupied, except for a cooling air inlet opening (7) are covered by a cooling air baffle (6), and that on which the air inlet opening opposite end of the cooling fins a cooling air exhaust duct (8) is provided, which the cooling air exiting from the spaces between the ribs into the open air or leads downwards into the cylinder cooling chamber.
DEP2743D 1943-12-09 1943-12-09 Air-cooled internal combustion engine with an adjoining room in the cylinder head Expired DE862076C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP2743D DE862076C (en) 1943-12-09 1943-12-09 Air-cooled internal combustion engine with an adjoining room in the cylinder head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2743D DE862076C (en) 1943-12-09 1943-12-09 Air-cooled internal combustion engine with an adjoining room in the cylinder head

Publications (1)

Publication Number Publication Date
DE862076C true DE862076C (en) 1953-01-08

Family

ID=7358227

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP2743D Expired DE862076C (en) 1943-12-09 1943-12-09 Air-cooled internal combustion engine with an adjoining room in the cylinder head

Country Status (1)

Country Link
DE (1) DE862076C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093616B (en) * 1956-09-18 1960-11-24 Hans List Dipl Ing Dr Techn Cylinder head for air-cooled internal combustion engines
US2985155A (en) * 1959-06-08 1961-05-23 Motoren Werke Mannheim Ag Air-cooled internal combustion engines
US3079902A (en) * 1958-11-15 1963-03-05 Linde Eismasch Ag Air-cooled cylinder head, in particular for internal combustion engines
FR2477634A1 (en) * 1980-03-04 1981-09-11 Mitsubishi Heavy Ind Ltd CYLINDER HEAD FOR AIR-COOLED ENGINES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093616B (en) * 1956-09-18 1960-11-24 Hans List Dipl Ing Dr Techn Cylinder head for air-cooled internal combustion engines
US3079902A (en) * 1958-11-15 1963-03-05 Linde Eismasch Ag Air-cooled cylinder head, in particular for internal combustion engines
US2985155A (en) * 1959-06-08 1961-05-23 Motoren Werke Mannheim Ag Air-cooled internal combustion engines
FR2477634A1 (en) * 1980-03-04 1981-09-11 Mitsubishi Heavy Ind Ltd CYLINDER HEAD FOR AIR-COOLED ENGINES

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