DE523479C - Mixture-compressing four-stroke internal combustion engine with external ignition and with two valve chambers opposite one another on the side of the cylinder head - Google Patents
Mixture-compressing four-stroke internal combustion engine with external ignition and with two valve chambers opposite one another on the side of the cylinder headInfo
- Publication number
- DE523479C DE523479C DED56311D DED0056311D DE523479C DE 523479 C DE523479 C DE 523479C DE D56311 D DED56311 D DE D56311D DE D0056311 D DED0056311 D DE D0056311D DE 523479 C DE523479 C DE 523479C
- Authority
- DE
- Germany
- Prior art keywords
- valve chambers
- piston
- cylinder
- ignition
- 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
Links
Classifications
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- 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
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
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- 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
- F02F1/242—Arrangement of spark plugs or injectors
-
- 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
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
- F02B2023/085—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition using several spark plugs per cylinder
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- 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
- F02B2275/22—Side valves
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- 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)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
Gemischverdichtende Viertakt-Brennkraftmaschine mit Fremdzündung und mit zwei seitlich am Zylinderkopf einander gegenüberliegenden Ventilkammern Die Erfindung betrifft gemischverdichtende Viertakt-Brennkraftmaschinen mit Fremdzündung und mit zwei seitlich am Zylinderkopf einander gegenüberliegenden Ventilkammern und besteht in einer derartigen Ausgestaltung derselben, daß zu Beginn der Zündung eine sehr heftige Turbulenz der zu verbrennenden Gase im Zylinder erzeugt wird.Mixture-compressing four-stroke internal combustion engine with spark ignition and with two opposite valve chambers on the side of the cylinder head Die The invention relates to mixture-compressing four-stroke internal combustion engines with spark ignition and with two opposing valve chambers on the side of the cylinder head and consists in such an embodiment of the same that at the beginning of the ignition a very violent turbulence of the gases to be burned is generated in the cylinder.
An Versuchen, eine heftige Turbulenz des Brennstoffgemisches bei Zündung zu erzeugen, hat es bisher nicht gefehlt. Entweder ging man hierbei von Motoren mit nur einer seitlichen Ventilkammer aus, bei, denen die Turbulenz durch Abschluß dieser Kammer durch den Arbeitskolben in oberer Totpunktlage gefördert wurde, oder man gixig von Motoren mit zwei seitlichen Ventilkammern aus, die aber entweder in der Höchstlage des Kolbens noch unbehindert durch einen relativ breiten Zylinderraum über dem Kolben miteinander verbunden sind, wodurch natürlich die Turbulenz im Augenblick der Zündung beeinträchtigt wird, oder aber in der oberen Totpunktlage des Kolbens durch diesen nahezu voneinander abgeschlossen sind, wobei aber der Zylinderkopf sich derart zwischen den beiden Kammern bis an den in der oberen Totpunktlage befindlichen Arbeitskolben senkt, daß im Augenblick der Zündung die Gasmassen der beiden Ventilkammern nicht unmittelbar gegeneinanderprallen können, da sie durch die vorerwähnte Einsenkung des Zylinderkopfes in die Richtung der Längsachse des Zylinders abgelenkt werden, so daß sie nicht gegeneinander, sondern nebeneinander im Zylinder verbrennen.In experiments, violent turbulence in the fuel mixture when ignited to produce, it has not been lacking so far. Either you went from engines with only one side valve chamber, where the turbulence by closure this chamber was promoted by the working piston in top dead center position, or one gixig of engines with two side valve chambers, but either in the maximum position of the piston is still unhindered by a relatively wide cylinder space connected above the piston, which of course eliminates the turbulence at the moment the ignition is impaired, or in the top dead center position of the piston by this are almost closed from each other, but with the cylinder head in this way between the two chambers up to the one located in the top dead center position The working piston lowers the gas masses of the two valve chambers at the moment of ignition can not directly collide with each other, because they by the aforementioned depression of the cylinder head are deflected in the direction of the longitudinal axis of the cylinder, so that they do not burn against each other, but side by side in the cylinder.
Die vorliegende Erfindung ermöglicht dadurch eine heftige Turbulenz der Gastmassen bei Zündung, daß sie im Augenblick der Zündung gegeneinanderstoßen, so daß sie sich heftig vermischen und rasch und vollständig verbrennen.The present invention thereby enables violent turbulence of the guest masses at ignition so that they collide with each other at the moment of ignition, so that they mix violently and burn quickly and completely.
Dies wird dadurch erzielt, daß der mit einer ebenen Stirnfläche versehene Arbeitskolben über die Ventilkammerböden hinaus bis nahe an die gleichfalls ebene Innenfläche des Zylinderdeckels heranreicht und die Innenflächen der Ventilkammerdeckel in gleicher oder nahezu gleicher Flucht mit der Zylinderdeckelfläche liegen, daß ferner die beiden Ventilkammern je mit einer Zündvorrichtung versehen sind, so daß nach .Zündung der abgeschnürten Teilladungen die beim Kolbenrückgang über den Kolben hinweg in den Zylinderraum dringenden Gasströme mit großer Geschwindigkeit aufeinanderprallen. Eine Ausführungsform des Erfindungsgegenstandes ist in der beiliegenden Zeichnung schematisch im Schnitt dargestellt.This is achieved in that the provided with a flat end face Working piston beyond the valve chamber bottoms to close to the equally flat Reaches the inner surface of the cylinder cover and the inner surfaces of the valve chamber cover lie in the same or almost the same alignment with the cylinder cover surface that Furthermore, the two valve chambers are each provided with an ignition device, so that after .ignition of the pinched-off partial charges when the piston retreats over the piston gas streams penetrating away into the cylinder space collide with each other at high speed. One Embodiment of the subject matter of the invention is shown schematically in the accompanying drawing shown in section.
P stellt den Kolben, A, A1 die beiden seitlichen Ventilkammern, S, S1 die Ein- und Auslaßventile, Z den Zylinderdeckel und B, B; die Zündkerzen dar.P represents the piston, A, A1 the two side valve chambers, S, S1 the inlet and outlet valves, Z the cylinder cover and B, B; the spark plugs.
Wie ersichtlich, ist der mit einer ebenen oberen Stirnfläche versehene Arbeitskolben P bis an die gleichfalls ebene Innenfläche des Zylinderdeckels Z herangezogen, in seiner oberen Totpunktlage, so daß er die beiden Ventilkammern A, A;, deren obere Abschlußwände in gleicher oder nahezu gleicher Flucht mit der Innenfläche des Zylinderdeckels liegen, voneinander ganz oder nahezu scheidet bzw. in ihnen Teilladungen abschnürt.As can be seen, the one provided with a flat upper end face Working piston P pulled up to the equally flat inner surface of cylinder cover Z, in its top dead center position, so that it has the two valve chambers A, A ;, their upper End walls in the same or almost the same alignment with the inner surface of the cylinder cover lie, completely or almost completely separate from each other or cut off partial charges in them.
Erfolgt nun die Zündung dieser Teilladungen durch die Kerzen B, B, dringen die Gasströme beim Kolbenrückgang über den Kolben hinweg in den Zylinderraum und einander entgegen, so daß sie mit großer Geschwindigkeit aufeinanderprallen.If these partial charges are ignited by candles B, B, the gas streams penetrate over the piston into the cylinder chamber when the piston retracts and towards each other, so that they collide with each other with great speed.
Sollen bestehende Motoren durch einfache Kolbenauswechslung umgewandelt werden, so hat die beinahe vollständige Behebung des freien Raumes zwischen der oberen Kolbenstirnfläche und der Innenfläche des Zylinderdeckels eine Steigerung der Verdichtung zur Folge, welche einen zu hohen Wert erreichen kann. Behufs deren Verminderung genügt es, durch Einlaßdrosselung ein Hubvolumen bei beschränktem Druck einzuführen, was einem kleineren Volumen bei üblichem Druck nach einem gewissen Kolbenhub in der Verdichtungsperiode entspricht. Überdies wird so der thermodynamische Vorteil einer verlängerten Expansion während des Arbeitshubes des Kolbens gesichert. DiesesVerfahren, das im französischen Patent Nr. 63I I 8z beschrieben ist, gelangt demnach stets vorteilhaft in Verbindung mit der vorliegenden Erfindung zur Anwendung.Should existing engines be converted by simply replacing pistons the almost complete elimination of the free space between the upper piston face and the inner surface of the cylinder cover an increase the result of compression, which can reach a value that is too high. For the sake of them It is sufficient to reduce a stroke volume at limited pressure by throttling the inlet introduce what is a smaller volume at normal pressure after a certain amount Piston stroke corresponds to the compression period. Moreover, it becomes the thermodynamic The advantage of a prolonged expansion during the working stroke of the piston is assured. This method, described in French Patent No. 63I I 8z, works therefore always advantageous for use in connection with the present invention.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR523479X | 1927-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE523479C true DE523479C (en) | 1931-04-24 |
Family
ID=8918637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED56311D Expired DE523479C (en) | 1927-07-29 | 1928-07-28 | Mixture-compressing four-stroke internal combustion engine with external ignition and with two valve chambers opposite one another on the side of the cylinder head |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE523479C (en) |
-
1928
- 1928-07-28 DE DED56311D patent/DE523479C/en not_active Expired
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