DE646433C - Air-compressing four-stroke injection engine with inlet and outlet valves arranged in the cylinder cover - Google Patents

Air-compressing four-stroke injection engine with inlet and outlet valves arranged in the cylinder cover

Info

Publication number
DE646433C
DE646433C DEA73183D DEA0073183D DE646433C DE 646433 C DE646433 C DE 646433C DE A73183 D DEA73183 D DE A73183D DE A0073183 D DEA0073183 D DE A0073183D DE 646433 C DE646433 C DE 646433C
Authority
DE
Germany
Prior art keywords
air
cylinder
inlet
compressing
cylinder cover
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
DEA73183D
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA73183D priority Critical patent/DE646433C/en
Application granted granted Critical
Publication of DE646433C publication Critical patent/DE646433C/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/06Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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

Description

Luftverdichtende Viertakteinspritzbrennkraftmaschine mit im Zylinderdeckel angeordneten Ein- und Auslaßventilen Die Erfindung betrifft eine luftverdichtende Viertakteinspritzbrennkraftmaschine mit im Zylinderdeckel angeordneten Ein- und Auslaßventien, bei der der Lufteinlaßstutzen in Richtung der Zylinderachse in den Zylinder einmündet. Bekanntlich wird bei Brennkraftmaschinen dieser Art der angesaugten Luft bei ihrem Eintritt in -den Zylinder durch eine entsprechende Abschirmung des Einlaßventilkegels eine Drehbewegung um die Zylinderachse erteilt. Auch durch entsprechende Formgebung des meist im Zylinderdeckel liegenden, gekrümmten Einsau..gkanals kann die Luftdrehgeschwindigkeit in dem gewollten Sinne beeanflußt werden.Air-compressing four-stroke injection internal combustion engine with in the cylinder cover arranged inlet and outlet valves The invention relates to an air-compressing Four-stroke internal combustion engine with injection and Outlet valves, in which the air inlet port in the direction of the cylinder axis in the Cylinder opens. It is known that in internal combustion engines of this type the is sucked in Air as it enters the cylinder through an appropriate shielding of the The inlet valve cone is given a rotary movement about the cylinder axis. Also through appropriate Shaping of the curved Einau..gkanals usually lying in the cylinder cover the air speed can be influenced in the intended sense.

Man hat hierbei: aber bis jetzt übersehen, daß auch die Form der Zuführungskanäle der Luft zu den. Zylinderdeckeln .auf die Geschwindigkeit der Kreiselbewegung der Luft einen linfluß hat. In der Regel wird die Luft dem im Zylinderdeckel liegenden, meistens, gekrümmten., tangential gerichteten Einsaugkanal durch einen zweiten Krümmer zugeführt, der ,an Üen Zylinderdeckel angeschlossen ist. Die Luft durchströmt alsio, insbesondere bei Mehrzylin@dermaschinen, zwei hintereinandergeschaltete Krümmer. Die Form und Richtung dieses in der Strömungsrichtung vor dem zuerstgenannten Kanal liegenden zweiten Kaiales ist daher auch für die Größe .der im Zylinder sich einstellenden Geschwindigkeit der Kreiselbewegung von Wichtigkeit. Unter Ausnutzung der an sich bekannten Erscheinung, daß hinter Mehrfachkrümmern Sekundärströmungen entstehen, ist nach der Erfindung eine Mehrfachkrümmung des Ansaugestutzens - angewendet, und zwar derart, daß der infolge der und hinter der Mehrfachkrümmung entstehende Drall. der Luft denselben Richtungssinn besitzt wie die der Luft durch die Abschirmung des Ventils aufgezwungene Drehung. Hiermit werden die aus der neueren Strömungsforschung bekannten Gesetze des Doppelkrümmers zur Anwendung gebracht, nach welchen der Krümmungssinn des. ersten Krümmers in bezug auf den Drehsinn der aus dem zweiten Krümmer austretenden Luft erhalten bleiben sollte. Die Anwendung dieser Erkenntnis ist gerade bei Brennkraftmaschinen b.esionders vorteilhaft, weil hierdurch eine innigere Durchmischung der Luft mit dem eingespritzten Brennstoff und dadurch eine bessere Verbrennung erreicht wird.One has here: but until now overlooked that the shape of the supply channels the air to the. Cylinder covers. To the speed of the gyroscopic movement of the Air has a lin flow. As a rule, the air is fed into the cylinder cover, mostly, curved., tangentially directed intake duct through a second bend fed, which is connected to Üen cylinder cover. The air flows through alsio, especially with multi-cylinder machines, two manifolds connected in series. The shape and direction of this in the direction of flow upstream of the first-mentioned channel lying second Kaiales is therefore also for the size of the adjusting itself in the cylinder The speed of the gyroscopic movement is important. Taking advantage of the in itself well-known phenomenon that secondary flows arise behind multiple bends, is according to the invention a multiple curvature of the intake connection - applied, and in such a way that the twist resulting from and behind the multiple curvature. the air has the same sense of direction as that of the air through the screen rotation forced on the valve. This is what emerges from the more recent flow research known laws of the double bend applied, according to which the curvature sense of the first manifold with respect to the direction of rotation of the emerging from the second manifold Air should be retained. The application of this knowledge is precisely in internal combustion engines b.esionders advantageous because this results in a more intimate mixing of the air with the injected fuel and thereby a better combustion is achieved.

Ein Ausführungsbeispiel der Erfindung ist auf der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.

Abb. i zeigt einen Zylinder einer Einspritzbrennkraftmaschine im Grundriß, und Abb. a ist ein Schnitt nach der Linie A-B der Abb. i.Fig. I shows a cylinder of an injection internal combustion engine in plan, and Fig. a is a section along line A-B of Fig. i.

Der Zylinder a der Brerinkraftmaschine, beispielsweise einer Dieselmaschine, ist mit einem tangential zum Zylinderumfang gerichteten Ansaugestutzen b ausgerüstet, .der an das im Zylinderdeckel c angeordnete Ein laßventil d angeschlossen ist. Der Ansaugestutzen mündet in Richtung der Zylinderachse in den Zylinder ein (Abb.2). Ferner ist ein in Abb. i nur schematisch angedeutetes Auslaßventil 2 vorgesehen. Auf dem Ventiltelle; des Einlaßventi.ls sind ein oder mehrere' Schirme f angeordnet, die der angesaugten Luft bei ihrem Eintritt in den Zylinder eine kreisende Bewegung um die Zylinderachse erteilen.The cylinder a of the Brerin engine, for example a diesel engine, is equipped with an intake port b directed tangentially to the cylinder circumference, .der to the one arranged in the cylinder cover c release valve d connected is. The intake port opens into the cylinder in the direction of the cylinder axis (Fig.2). Furthermore, an outlet valve 2, indicated only schematically in FIG. I, is provided. On the valve head; of the inlet valve one or more 'screens f are arranged, that of the air drawn in as it enters the cylinder has a circular motion around the cylinder axis.

Wie Abb. i erkennen läßt, ist der Ansaugestutzen b so gekrümmt, daß der infolge der Krümmung ä hinter dieser entstehende Drall der Luft denselben Richtungssinn besitzt wie die der Luft durch die Abschirmung des Ventils aufgezwungene kreisende Bewegung, die durch die in Abb. i und z eingetragenen Pfeile gekennzeichnet ist. Hinsichtlich der Abb.2 äst zu beachten, daß der in den Zylinderraum eingezeichnete Pfeil perspektivisch veranschaulicht ist.As Fig. I shows, the intake port b is curved so that the swirl of the air that arises as a result of the curvature behind it has the same sense of direction like that of the air forced by the shielding of the valve Movement, which is indicated by the arrows in Fig. I and z. With regard to Fig. 2 it is important to note that the one drawn in the cylinder space Arrow is illustrated in perspective.

Die Luft wird also unter dem Einfluß des abwärts gehenden Kolbens während des Saughubes durch das geöffnete Saugventil in den Zylinder gezogen und durch den Schirm f des Einsaugventils sowie durch die Wirkung des vorgeschalteten Krümmers in Drehung versetzt. Diese durch die gekennzeichneten beiden Einflüsse hervorgerufene und daher doppelt würkun;gsvolle Drehung bleibt auch während des Kompressionshubes und der ins.pritzperio@de des Brennstoffes erhalten. @j Durch die vollkommene Kreiselbewegung der 'Luft wird eine innige Durchmischung mit dem eingespritzten Brennstoff und dadurch eine gute Verbrennung erreicht.The air is thus under the influence of the downward piston pulled into the cylinder through the open suction valve during the suction stroke and through the screen f of the intake valve and through the action of the upstream Elbow set in rotation. These are characterized by the two influences The rotation caused and therefore doubly effective also remains during the Compression stroke and the ins.pritzperio@de of the fuel. @j through the perfect gyration of the air becomes an intimate mixing with the injected fuel and thus good combustion is achieved.

Claims (1)

PATENTANSPRUCH: Luftverdichtende Viertakteinspritzbrennkraftmaschine mit im Zylinderdeckel angeordneten Ein- Ein- und :luslal.taentilen, bei der der Lufteinlaßstutzen in Richtung der Zylinderachse in den Zylinder einmündet und der angesaugten Luft bei ihrem Eintritt in den Zylinder durch eine entsprechende Abschirmung des Einlaßventilkegels eine Drehbewegung um die Zylinderachse erteilt -%rzrd, gekennzeichnet durch die Anwendung einer Mehrfachkrümmung des Ansaugestutzens, derart. daß der infolge der und hinter der Mehrfachkrümmung entstehende Drall der Luft denselben Richtungssinn besitzt wie die der Luft durch die Abschirmung des Ventils aufgezwungene Drehung.PATENT CLAIM: Air-compressing four-stroke injection internal combustion engine with inlet and: luslal.taentilen arranged in the cylinder cover, in which the Air inlet nozzle opens into the cylinder in the direction of the cylinder axis and the sucked air as it enters the cylinder through an appropriate shield the inlet valve cone is given a rotary movement around the cylinder axis -% rzrd, marked by using a multiple curvature of the intake port, such. that the as a result of and behind the multiple curvature of the air swirl the same It has a sense of direction like that of the air imposed by the shielding of the valve Rotation.
DEA73183D 1934-05-13 1934-05-13 Air-compressing four-stroke injection engine with inlet and outlet valves arranged in the cylinder cover Expired DE646433C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA73183D DE646433C (en) 1934-05-13 1934-05-13 Air-compressing four-stroke injection engine with inlet and outlet valves arranged in the cylinder cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA73183D DE646433C (en) 1934-05-13 1934-05-13 Air-compressing four-stroke injection engine with inlet and outlet valves arranged in the cylinder cover

Publications (1)

Publication Number Publication Date
DE646433C true DE646433C (en) 1937-06-14

Family

ID=6945772

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA73183D Expired DE646433C (en) 1934-05-13 1934-05-13 Air-compressing four-stroke injection engine with inlet and outlet valves arranged in the cylinder cover

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916133C (en) * 1942-11-24 1954-08-05 Daimler Benz Ag Method for purging and charging an internal combustion engine, in particular a two-stroke internal combustion engine with cylinder rows arranged in a V shape
DE1032972B (en) * 1953-10-29 1958-06-26 Maschf Augsburg Nuernberg Ag Four-stroke internal combustion engine with four valves per cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916133C (en) * 1942-11-24 1954-08-05 Daimler Benz Ag Method for purging and charging an internal combustion engine, in particular a two-stroke internal combustion engine with cylinder rows arranged in a V shape
DE1032972B (en) * 1953-10-29 1958-06-26 Maschf Augsburg Nuernberg Ag Four-stroke internal combustion engine with four valves per cylinder

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