WO1993021426A1 - Two-stroke internal combustion engine with controlled working medium inlet suction - Google Patents

Two-stroke internal combustion engine with controlled working medium inlet suction Download PDF

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Publication number
WO1993021426A1
WO1993021426A1 PCT/CZ1993/000011 CZ9300011W WO9321426A1 WO 1993021426 A1 WO1993021426 A1 WO 1993021426A1 CZ 9300011 W CZ9300011 W CZ 9300011W WO 9321426 A1 WO9321426 A1 WO 9321426A1
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WO
WIPO (PCT)
Prior art keywords
connecting rod
slide
bearing
working medium
internal combustion
Prior art date
Application number
PCT/CZ1993/000011
Other languages
German (de)
French (fr)
Inventor
Josef Lecnar
Original Assignee
Josef Lecnar
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 Josef Lecnar filed Critical Josef Lecnar
Publication of WO1993021426A1 publication Critical patent/WO1993021426A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/12—Rotary or oscillatory slide valve-gear or valve arrangements specially for two-stroke engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L11/00—Valve arrangements in working piston or piston-rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L5/00—Slide valve-gear or valve-arrangements
    • F01L5/20—Slide valve-gear or valve-arrangements specially for two-stroke engines
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Definitions

  • the invention relates to a two-stroke internal combustion piston engine with controlled suction of the working medium.
  • the known two-stroke internal combustion engines are equipped with the controlled input of the entry working medium.
  • the working medium which is the mixture of air and fuel, enters the crankcase and from there through the overflow channel into the engine cylinder.
  • the closing and opening of the suction and exhaust ducts can be carried out by the automatic valves or the slides, and their movement can be controlled most often by the crankshaft of the internal combustion engine.
  • the most widespread are the slide arrangement with the ratation movement, but which have the undesired high peripheral speeds. These high circumferential speeds are the cause of the increased friction losses of the locking elements.
  • the valve In order to eliminate the high friction losses of the rotary valve, the valve is used with the reversible movement (reversible), which uses the drive by the crankshaft of the internal combustion engine, which are better enough to control the closure and the opening of the flow cross section, but they are are very complicated and the large number of contain dynamic parts that are also subject to high wear.
  • Distribution (control) mechanism formed the reversible-movable slide connected to the connecting rod of the internal combustion engine, slidably mounted in the sliding seat by the cross slide bearing, shaped in the connecting rod shaft between the connecting rod bearing and the connecting rod eye, and its bearing pin rotatably bound to the part of the slide, in the internal combustion engine for the movement of the bearing pin in the rectilinear or circular path is generally stored transversely to the axis of the cylinder and the cross slide bearing is bound with its bearing pin in a fixed part.
  • the slide part can be elongated-flat-shaped or cylindrical-cylindrical-shaped like a piston and slidably supported in the guideways formed in the walls of the crankcase, generally mounted transversely or perpendicularly or obliquely to the axis of the cylinder, or the bearing pin of the cross slide bearing can be rotated in the opening of the flat-shaped sucker in the eccentric form with respect to this opening, with the opening for the pivoting mounting of the slide on the Parelle bolt with the axis of the crankshaft.
  • the guideway for the sliding mounting of the cross slide bearing in the connecting rod shaft can be arranged on the longitudinal attachment, can be formed on one side of the flat-shaped connecting rod shaft, or can be produced on the inner walls of the longitudinal opening of the connecting rod shaft.
  • the slide provides the closing surface, the closing of the mouth of the suction channel, the closing of the mouth of the suction channel, the closing of the mouth of the suction channel in the crankcase space can be done with the closing part for the exhaust duct closure can be connected.
  • the advantages of the two-stroke combustion piston engine according to the invention with controlled suction of the working medium consist in a simple construction, in the substantial reduction in the rotational and vibration mass of the control mechanism and in a simple and effective transmission of the movement from the connecting rod to the locking and opening elements.
  • a high speed of movement of the slide occurs during opening and closing, after which, conversely, the speeds are very low in the area of the full closure of the slide sealing surfaces.
  • the oscillating movement of the slide has a speed from zero to higher speeds, and the medium speed is very low and overflows with zero and standstill. This enables the crankcase to be effectively filled in a wide operating speed range, which enables the specific engine power to be increased.
  • the slider movement is only carried out in the most necessary length, which corresponds to the cross-section of the flow channel. The total path and the movement time of the slider is reduced. Every additional closing element can be tied on the slide and thus an earlier closure of the exhaust duct cross section than the overflow cross section and thus the pollutant content in the exhaust gases can be significantly reduced.
  • FIG. 2 shows an exemplary schematic arrangement of the two-stroke combustion piston engine with a pivotable flat-shaped slide.
  • Figure 3 shows an exemplary schematic arrangement according to Figure 1 in cross section.
  • Figure 4 shows an exemplary schematic mounting of the cross slide bearing on a longitudinal attachment of the connecting rod shaft of the connecting rod in cross section.
  • Figure 5 shows the bearing of the cross slide bearing in a longitudinally flat opening of the connecting rod shaft in cross section.
  • FIG. 1 shows the internal combustion engine 1 with the piston 5 supported by the piston pin 8 mounted in the piston pin eye 11 of the connecting rod 9, which connecting rod shaft 10 is created on the opposite side of a connecting rod eye 12, for mounting on the crank pin 13 of the crankshaft 14, which further the main pin 15 and the flywheels 16 are formed.
  • An overcurrent channel 6 is formed in the cylinder 3.
  • a longitudinally shaped opening 52 is formed, which is created with a two-sided sliding seat 21, in which a cross slide bearing 26 is slidably mounted with the bearing pin 27.
  • the bearing pin 27 can be made in one piece with the.
  • Buchschblager 26 can be formed or it can be rotatably mounted in the Buchschubager 26 with one of its bolt ends.
  • the bearing pin 27 of its second pin end rotatably mounted in the opening 30, which is formed in the parts 18, 19, the longitudinal flat-shaped or circular-cylindrical slide 17, mounted perpendicular to the axis of the cylinder 3, sliding in the guide tracks 31, 32, in the walls 33 , 34 of the crankcase 2 shaped.
  • the slide 17 is provided with a closure surface 20 which is intended for closing the mouth 22 of the intake duct 4 into the crankcase.
  • the slide 17 is on obtain the end of the bolt 23, provided for the engagement with the closing element 24, mounted on the bolt 25 in a swinging manner.
  • the free end 29 is ended with the closing surface 28 for closing the exhaust duct 7.
  • the connecting rod 9 is rotatably connected by the cross slide bearing 26 to the part 35 of the flat slide 38.
  • the flat slide 38 is rotatably mounted with its opening 46 on the bolt 63 which, according to the embodiment in FIG. 2, is coaxial with the main axis of the crankshaft 14.
  • the slider 38 is also made with the part 36; on which the closing surface 60 for closing the mouth 22 of the intake duct 4 is formed.
  • the slide 38 is further procured with the part 37, the attachment 39, for storage by the bolt 40 on the tie rod 41, mechanically connected by the bolt 42 to the closing element 43, to which the free end 44, with the closing surface 45 for closing the Exhaust duct 7 is provided.
  • the compartment-shaped slide 38 is mounted with its opening 46 on the bolt 63, and is formed on the sprue 64, which is made in one piece with the crankshaft 2.
  • the closing surface 60 can be created cheaply on the side wall of the slide 38.
  • Fig. 3 you can also see the storage of the cross slide bearing 26 through the bearing pin 27 in the slide 38.
  • Figure 4 the connecting rod shaft 10 shown, the connecting rod 9 is created with the longitudinal attachment 47, which has on its sides the guide surface 488 49 for storage, and the sliding guide of the fork 50, 51 of the cross slide bearing 26, which in the bearing pin 27 passing in the opening 30 of the part 35 is mounted.
  • the other version of the cross slide bearing is shown in Fig.
  • the function of the device is evident from FIG. 1.
  • the connecting rod 9 bends out, from the axis of the cylinder 3 and the movement of the cross slide bearing 26 via the bearing pin 27 pushes the slide 17 into motion sets, and through the closing surface 20, the mouth 22 of the intake duct 4 in the crankcase 2 is closed.
  • the mouth 22 of the intake duct 4 is completely closed and the slide 17 reaches the outermost position, in which its speed is zero and its direction changes.
  • the slide 17 moves in the other direction and the mouth 22 of the intake duct 4 closes again and when the connecting rod 9 passes through position in which the axis of the connecting rod 9 is in the axis of the cylinder 3 lies, the speed of movement of the slide 17 has the highest value and the opening of the intake duct runs fastest.
  • the slider. 17 reaches the outermost position in the position of the connecting rod 9 in the highest deflection from the axis of the cylinder 3 when the speed of the slide 17 has zero value and changes its direction again.
  • the mechanical connection of the slide 17 with the closing element 24, for the closing and opening of the exhaust duct 7, enables the same control of the flow cross-section of the exhaust f duct 7 and by means of the suitable transmission it can be achieved that it is first throttles from the cross section of the exhaust duct 7 and only afterwards the overflow duct 6 for the flow of the medium through the overflow from the crankcase 2.
  • the set-up function according to FIG. 2 is analogous to the fact that for storage with respect to the flat slide 38, rotatable on the bolt en 63, created in the walls of the crankcase 2, the bearing pin 28 moves, on the section of the circle in the transverse direction to the axis of the cylinder 3 by the Schwenggenge movement, whereby formed by the closing surface in part 36, opens, respectively.

Abstract

A two-stroke internal combustion engine (1) with controlled working medium inlet suction comprises a piston (5), a connecting rod (9), a crankshaft (14) and a control mechanism consisting of slide block (17) which slides through the Scotch yoke block (26) and is rotatably linked to the crankshaft. Said Scotch yoke block (26) is mounted in the slot (21) in the shank of the connecting rod (9) and is connected to the pivot pin (27) between the big end (12) and the little end (11) of the connecting rod (9) to be rotatable with respect to the side faces (18, 19) of the slide block (17). This provides for movement of the pivot pin (27) along a linear path substantially perpendicular to the axis of the cylinder (3) in the internal combustion engine (1). The slide block (17) can have an elongate flat or plain cylindrical piston-like shape and is slidingly mounted in the guides (31, 32) formed in the walls (33, 34) of the crankcase (2), vertical to the axis of the cylinder (3), or the pivot pin (27) of the Scotch yoke block (26) can be mounted in the bore (30) in the flange (35) for oscillatory mounting of the flat-type slide block (38), in an eccentric manner as defined by bore (30) with respect to bore (46), to enable oscillatory mounting of the slide block (38) on parallel pin (63) parallel to the crankshaft axis. The slot (21) can be formed on the longitudinal projection (47) on one side of the shank (10) of the longitudinal opening (52) in connecting rod (9), or can be formed in the inner walls (61, 62) of the connecting rod (9). The slide block (17) can be linked with the closure element (13) for closing the exhaust channel (7).

Description

B e s c h r e i b u n g  Description
Zweitakt-Verbrennungskolbenmotor mit gesteurtem Ansaugen des Arbeitsmediums Two-stroke combustion piston engine with controlled suction of the working medium
Gebiet der Technik Technical field
Die Erfindung betrifft einen Zweitakt Verbrennungs-Kolbenmotor mit gesteuertem Ansaugen des Arbeitsmediums. The invention relates to a two-stroke internal combustion piston engine with controlled suction of the working medium.
Stand der Technik State of the art
Zum Zwecke der Erhöhung des Nutzeffekts des Ausspülens sind die bekannten Zweitaktverbrennungsmotoren mit dem gesteuerten Eingang des Eintrittsarbeitsmediums ausgestattet. Das Arbeitsmedium, dass die Mischung der Luft und des Brennstoffes ist, tritt ins Kurbelgehäuse und von hier durch den Überlaufskanal in den Zylinder des Motors. Nach der Verbrennung im Auspuffskanal flüsst ab, der gleichfalls oft mit einem gesteuerten Verschlusselement versehen kann. Die Schliessung und die Öffnung der Saugs- und Auspuffskanälen kann durch die automatischen Ventile oder die Schieber ausgeübt, und ihre Bewegung am öftensten von der Kurbe lwell e des Verbrennungsmotors gesteuert kann. Am verbreitesten dabei die Schieberanordnung mit der Ratationsbewegung sind, die aber die ungewünschte Hochumfangsgeschwindigkeiten haben. Diese Hochumfangsgeschwindigkeiten dann die Urache von den erhöhten Reibungsverluste der Schliessungselemente sind. Zwecks der Beseitigung der hohen Reibungsverluste der Rotationsschieber, die Schieber mit der umkehrbaren Bewegung (reversibel) angewendet sind, die den Antrieb durch die Kurbenwelle des Verbrennungsmotor verwendet, die für die Steuerung der Schliessung und die Öffnung der Durchfussquerschni tte zwar besser genügt sind, die aber sehr komplizierte sind und den Grosszahl der dynamischbeanspruchenden Teilen enthalten, denen die Abnützung gleichfalls hoch ist. For the purpose of increasing the efficiency of flushing out, the known two-stroke internal combustion engines are equipped with the controlled input of the entry working medium. The working medium, which is the mixture of air and fuel, enters the crankcase and from there through the overflow channel into the engine cylinder. After combustion in the exhaust duct flows, which can also often be provided with a controlled closure element. The closing and opening of the suction and exhaust ducts can be carried out by the automatic valves or the slides, and their movement can be controlled most often by the crankshaft of the internal combustion engine. The most widespread are the slide arrangement with the ratation movement, but which have the undesired high peripheral speeds. These high circumferential speeds are the cause of the increased friction losses of the locking elements. In order to eliminate the high friction losses of the rotary valve, the valve is used with the reversible movement (reversible), which uses the drive by the crankshaft of the internal combustion engine, which are better enough to control the closure and the opening of the flow cross section, but they are are very complicated and the large number of contain dynamic parts that are also subject to high wear.
Wesen der Erfindung Essence of the invention
Das Wesen der Erfindung besteht darin, dass die Schliessungsorgane (Elemente) desThe essence of the invention is that the closing elements (elements) of the
Verteilungs (steuerungs) mechanismus bildeten den umkehrbare-beweglichen Schieber mit dem Pleuel des Verbrennungsmotor verbunden, durch den Kreuzschublager gleitend im Gleitsitz gelagert, im Pleuelschaft geformt zwischen dem Pleuelslager und dem Pleueläuge, und seinen Lagerbolzen drehbar mit dem Teil des Schiebers gebunden, im Verbrennungsmotor für die Bewegung den Lagerbolzen in der geradlinigen oder der kreisrunden Bahn grundsätzlich quer zur Achse des Zylinders gelagert und der Kreuzschublager mit seinem Lagerbolzen in einen Festteil gebunden sind. Der Schieberteil kann länglich-flach förmiger oder keisrund-zylindrisch förmiger wie ein Kolben sein und gleitend gelagert in den Führungsbahnen geformten in den Wandungen des Kurbelgehäse grundsätzlich quer oder senkrecht oder schräg zur Achse des Zylinders gelagert, oder kann der Lagerbolzen des Kreuzschublagers drehbar in der Öffnung des flachförmigen Sohiebers in der exzentrischen Form hinsichtlich zu dieser Öffnung, mit der Öffnung für die schwenkende Lagerung des Schiebers auf dem Parelle-Bolzen mit der Achse der Kurbelwelle. Die Führungsbahn für die gleitende Lagerung des Kreuzschublager im Pleuelschaft kann auf dem Längsvorsatz anordnen sein, auf der einen Seite des flachförmigen Pleuelschaft geformt, oder auf den inneren Wandungen der Längsöffnung des Pleuelschafts hergestellt sein kann. Der Schieber mit der Schliessungsfläche versorgt, für die Schliessung der Ausmündung des Ansaugskanal versorgt, für die Schliessung der Ausmündung des Ansaugskanal versorgt, für die Schliessung der Ausmündung des Ansaugskanal in den Kurbelgehäseraum kann mit dem Schliessungsteil für die Schliessung des Auspuffskanal verbunden kann. Die Vorteile des erf indungsgemässen Zweitakt Verbrennungskolbenmotors mit gesteuerten Ansaugen des Arbeitsmediums bestehen in einer einfachen Konstruktion, in der wesentlichen Verminderung der Rotations- und Schwingungsmasse des Steuerungsmechanismus und in einer einfachen und wirkvollen Übertragung der Bewegung vom Pleuel zu den Schliessungs- und Offnungselementen. Bei der Öffnung und der Schliessung eine Hochgeschwindigkeit der Bewegung des Schiebers entsteht, wonach umgekehrt im Gebiet der vollen Schliessung der Schiebersdichtungsflächen die Geschwindigkeiten sehr niedrig sind. Die schwingende Bewegung des Schiebers hat eine Geschwindigkeit von Nullwert bis in die höhere Geschwindigkeiten, und auch die Mittelgeschwindigkeit sehr kleine ist und läuft die Nullwert und den Stillstand über. Damit man kann eine wirkvolle Füllung der Kurbelgehäuse in breiten Betr iebs-Drehzahlbereich erreichen, der eine Erhöhung der spezifische Motorleistung ermöglicht. Der Schiberbewegung ist nur in einer nötigste Länge ausgeübt, die dem Querschnitt schliessenden des Durchfusskanal entspricht. Die gesamtbahn und die Bewegungszeit des Schiebers erniedrigt wird. Auf dem Schieber lässt sich jedes weiteren Schliessungselement gebunden und damit eine frühere Schliessung des Auspuffkanalsquerschnitts als den Uberstromquerschnitt und so kann man den Schadstoffgehalt in den Auspuffabgäsen wesentlich reduzieren. Erläuterung der Abbildungen Distribution (control) mechanism formed the reversible-movable slide connected to the connecting rod of the internal combustion engine, slidably mounted in the sliding seat by the cross slide bearing, shaped in the connecting rod shaft between the connecting rod bearing and the connecting rod eye, and its bearing pin rotatably bound to the part of the slide, in the internal combustion engine for the movement of the bearing pin in the rectilinear or circular path is generally stored transversely to the axis of the cylinder and the cross slide bearing is bound with its bearing pin in a fixed part. The slide part can be elongated-flat-shaped or cylindrical-cylindrical-shaped like a piston and slidably supported in the guideways formed in the walls of the crankcase, generally mounted transversely or perpendicularly or obliquely to the axis of the cylinder, or the bearing pin of the cross slide bearing can be rotated in the opening of the flat-shaped sucker in the eccentric form with respect to this opening, with the opening for the pivoting mounting of the slide on the Parelle bolt with the axis of the crankshaft. The guideway for the sliding mounting of the cross slide bearing in the connecting rod shaft can be arranged on the longitudinal attachment, can be formed on one side of the flat-shaped connecting rod shaft, or can be produced on the inner walls of the longitudinal opening of the connecting rod shaft. The slide provides the closing surface, the closing of the mouth of the suction channel, the closing of the mouth of the suction channel, the closing of the mouth of the suction channel in the crankcase space can be done with the closing part for the exhaust duct closure can be connected. The advantages of the two-stroke combustion piston engine according to the invention with controlled suction of the working medium consist in a simple construction, in the substantial reduction in the rotational and vibration mass of the control mechanism and in a simple and effective transmission of the movement from the connecting rod to the locking and opening elements. A high speed of movement of the slide occurs during opening and closing, after which, conversely, the speeds are very low in the area of the full closure of the slide sealing surfaces. The oscillating movement of the slide has a speed from zero to higher speeds, and the medium speed is very low and overflows with zero and standstill. This enables the crankcase to be effectively filled in a wide operating speed range, which enables the specific engine power to be increased. The slider movement is only carried out in the most necessary length, which corresponds to the cross-section of the flow channel. The total path and the movement time of the slider is reduced. Every additional closing element can be tied on the slide and thus an earlier closure of the exhaust duct cross section than the overflow cross section and thus the pollutant content in the exhaust gases can be significantly reduced. Explanation of the pictures
Das Wesen des erfindungsmässen Zweitakt-Verbrennmgskolbenmotors ist auf den beiliegenden Abbildungen 1-5 erläutert, von denen die Abbildung 1 eine vorbildliche schematische Anordnung des ZweitaktThe essence of the two-stroke internal combustion engine according to the invention is explained in the attached Figures 1-5, of which Figure 1 is an exemplary schematic arrangement of the two-stroke
Verbrennungskolbenmotors mit einem läng-flachförmigen Schub-Schieber im Querschnitt zeigt. Die Abbildung 2 zeigt eine vorbildliche schematische Anordnung des Zweitakt-Verbrennungskolbenmotors mit einem schwenkberen flach-förmigen Schieber. Die Abbildung 3 dann zeigt eine vorbildliche schematische Anordnung gemäss der Abbildung 1 im Querschnitt. Die Abbildung 4 zeigt eine vorbildliche schematische Lagerung des Kreuzschublagers auf einem Längsvorsatz des Pleuelschaf ts des Pleuels im Querschnitt. Und die Abbildung 5 zeigt die Lagerung des Kreuzschublagers in einer längs-flachförmigen Öffnung des Pleuelschafts im Querschnitt. Combustion piston engine with a longitudinally flat-shaped thrust slide in cross section shows. Figure 2 shows an exemplary schematic arrangement of the two-stroke combustion piston engine with a pivotable flat-shaped slide. Figure 3 then shows an exemplary schematic arrangement according to Figure 1 in cross section. Figure 4 shows an exemplary schematic mounting of the cross slide bearing on a longitudinal attachment of the connecting rod shaft of the connecting rod in cross section. And Figure 5 shows the bearing of the cross slide bearing in a longitudinally flat opening of the connecting rod shaft in cross section.
Beschreibung der Ausfühnmgsbeispiele Description of the design examples
Auf der Abbildung 1 zeigt man den Verbrennungsmotor1 mit dem Kolben 5 gelagert durch den Kolbenbolzen 8 gelagert im Kolbenbolz enauge 11 des Pleuels 9 denen Pleuelschaft 10 auf der gegenüberliegenden Seite einem Pleuelauge 12 geschaffen ist, für die Lagerung auf den Kurbelzapfen 13 der Kurbelwelle 14, die weiter dem Hauptbolzen 15 und der Schwungräder 16 gebildet sind. Im Zylinder 3 ist einen Uberstromkanal 6 gebildet. Im Pleuelschaft 10 des Pleuels 9 eine längsförmide Öffnung 52 gebildet wird, die mit einer zweiseitige Gleitsitz 21 geschaffen wird, in der gleitend einen Kreuzschublager 26 gelagert ist mit dem Lagerbolzen 27. Der Lagerbolzen 27 kann aus einem Stück mit dem. Kreuzschblager 26 gebildet sein oder es kann im Kreuzschublager 26 mit einer von seinem Bolzenenden drehbar gelagert sein. Der Lagerbolzen 27 seiner zweiten Bolzende in die Öffnung 30 drehbar gelagert, der in den Teilen 18, 19 geformt, deslangsflachförmigen oder kreisrundzylindrisch-förmigen Schiebers 17, senkrecht zur Achse des Zylinders 3 gelagert, gleitend in den Führungsbahnen 31, 32, in den Wandungen 33, 34 des Kurbelgehäuse 2 geformt. Der Schieber 17 ist mit eine Verschlussfläche 20 beschaffen, die zur Schli essung der Ausmündung 22 des Ansaugskanals4 ins Kurbelgehäuse bestimmt ist. Der Schieber 17 ist auf seinem Ende den Bolzen 23 beschaffen, für den Eigriff mit dem Verschliessungselement 24 versehen, auf dem Bolzen 25 schwingend gelagert. Das Freiende 29 ist mit der Schliessungs-fläche 28 für die Schliessung des Auspuffskanal 7 beendet. Auf der Abbildung 2 ist der Pleuel 9, der durch den Kreuzschublager 26 mit dem Teil 35 des flachförmigen Schiebers 38 drehbar verbunden. Der flächförmige Schieber 38 ist mit seiner Öffnung 46 auf dem Bolzen 63 drehbar gelagert, der gemäss der Ausführung der Abb. 2 mit der Hauptachse der Kurbelwelle 14 gleichachsig ist. Der Schieber 38 ist gleichfalls mit dem Teil 36 beschaffen; auf denen die Schliessungsfläche 60 für die Schliessung der Ausmündung 22 des Ansaugskanal 4 gebildet ist. Der Schieber 38 ist weiter mit dem Teil37, dem Vorsatz 39, für die Lagerung durch den Bolzen 40 auf der Spurstange 41 beschaffen, durch den Bolzen 42 mit dem Schliessungselement 43 mechanisch verbunden, denen das Freiende 44, mit der Schliessungsfläche 45 für die Schliessung des Auspuffskanals 7 versehen wird. Im Querschnitt des Verbrennungsmotors 1 gemäss der Abb. 3 ist der fachförmige Schieber 38 mit seiner Öffnung 46 auf dem Bolzen 63 gelagert, auf dem Anguss 64 geformt, der aus einem Stück mit der Kurbelwelle 2 ist. Die Schliessungsfläche 60 kann auf der Seitenwandung des Schiebers 38 günstig geschaffen. Auf der Abb. 3 kann man gleichfalls die Lagerung des Kreuzschublagers 26 durch den Lagerbolzen 27 im Schieber 38 sehen. Auf der Abbildung 4, der gezeigte Pleuelschaft 10, des Pleuels 9 ist mit dem Langsförmigen Vorsatz 47 geschaffen, der auf seinen Seiten die Führungsfläche 488 49 für die Lagerung hat, und die Gleitführung der Gabel 50, 51 des Kreuzschublagers 26, die in den Lagerbolzen 27 übergehend, in der Öffnung 30 des Teils 35 gelagert ist. Die andere Ausführung des Kreuzschublagers ist auf der Abb. 5 gezeigt, wo der Lagerbolzen 27, mit den Freiende 58, 59 in den Öffnungen 30 der Teile 18, 19_ des vorgebildenen Schiebers gelagert ist. Zwischen den Freienden 58, 59 sind auf dem Kreuzschublager 26 die Gleitsringe 56, 57 angeordnet sind, zwischen denen auf dem Kreuzschublager 26 die Ausseriführungsflache 53, 54 geschaffen sind, für die Lagerung auf den Gleitflachen 61, 62 im Pleuelschaft 10. 1 shows the internal combustion engine 1 with the piston 5 supported by the piston pin 8 mounted in the piston pin eye 11 of the connecting rod 9, which connecting rod shaft 10 is created on the opposite side of a connecting rod eye 12, for mounting on the crank pin 13 of the crankshaft 14, which further the main pin 15 and the flywheels 16 are formed. An overcurrent channel 6 is formed in the cylinder 3. In the connecting rod shaft 10 of the connecting rod 9, a longitudinally shaped opening 52 is formed, which is created with a two-sided sliding seat 21, in which a cross slide bearing 26 is slidably mounted with the bearing pin 27. The bearing pin 27 can be made in one piece with the. Kreuzschblager 26 can be formed or it can be rotatably mounted in the Kreuzschubager 26 with one of its bolt ends. The bearing pin 27 of its second pin end rotatably mounted in the opening 30, which is formed in the parts 18, 19, the longitudinal flat-shaped or circular-cylindrical slide 17, mounted perpendicular to the axis of the cylinder 3, sliding in the guide tracks 31, 32, in the walls 33 , 34 of the crankcase 2 shaped. The slide 17 is provided with a closure surface 20 which is intended for closing the mouth 22 of the intake duct 4 into the crankcase. The slide 17 is on obtain the end of the bolt 23, provided for the engagement with the closing element 24, mounted on the bolt 25 in a swinging manner. The free end 29 is ended with the closing surface 28 for closing the exhaust duct 7. In the figure 2 the connecting rod 9 is rotatably connected by the cross slide bearing 26 to the part 35 of the flat slide 38. The flat slide 38 is rotatably mounted with its opening 46 on the bolt 63 which, according to the embodiment in FIG. 2, is coaxial with the main axis of the crankshaft 14. The slider 38 is also made with the part 36; on which the closing surface 60 for closing the mouth 22 of the intake duct 4 is formed. The slide 38 is further procured with the part 37, the attachment 39, for storage by the bolt 40 on the tie rod 41, mechanically connected by the bolt 42 to the closing element 43, to which the free end 44, with the closing surface 45 for closing the Exhaust duct 7 is provided. In the cross section of the internal combustion engine 1 according to FIG. 3, the compartment-shaped slide 38 is mounted with its opening 46 on the bolt 63, and is formed on the sprue 64, which is made in one piece with the crankshaft 2. The closing surface 60 can be created cheaply on the side wall of the slide 38. In Fig. 3 you can also see the storage of the cross slide bearing 26 through the bearing pin 27 in the slide 38. In Figure 4, the connecting rod shaft 10 shown, the connecting rod 9 is created with the longitudinal attachment 47, which has on its sides the guide surface 488 49 for storage, and the sliding guide of the fork 50, 51 of the cross slide bearing 26, which in the bearing pin 27 passing in the opening 30 of the part 35 is mounted. The other version of the cross slide bearing is shown in Fig. 5, where the bearing pin 27, with the free ends 58, 59 is mounted in the openings 30 of the parts 18, 19_ of the slide formed. Between Free ends 58, 59 are arranged on the cross slide bearing 26, the sliding rings 56, 57, between which the outer guide surface 53, 54 are created on the cross slide bearing 26 for storage on the sliding surfaces 61, 62 in the connecting rod shaft 10.
Die Funktion der Einrichtung ist der Erfindung gemäss aus der Abb. 1 offensichtlich. Bei der Bewegung des Kolben 5 aus der ferne Stellung von der Kurbelwelle 14, in der Richtung zur Kurbelwelle 14 , der Pleuel 9 biegt aus, von der Achse des Zylinders 3 und die Bewegung des Kreuzschublagers 26 über den Lagerbolzen 27 den Schieber 17 in die Bewegung setzt, und durch die Schliessungsfläche 20 die Ausmündung 22, des Ansaugskanals 4 ins Kurbelgehäuse 2 geschlossen wird. In der fernsten Stellung des Pleuels 9 von der Achse des Zylinders 3 ist die Ausmündung 22 des Ansaugskanals 4 ganz geschlossen und der Schieber 17, die äusserste Stellung erreicht, in der seine Geschwindigkeit den Nullwert hat und seine Richtung ändert. Mit der Drehung der Kurbelwelle 14, in der Pfeilrichtung, der Schieber 17 bewegt sich in die andere Richtung und die Ausmündung 22 des Ansaugskanals 4 sich wieder schliesst und beim Durchgang des Pleuels 9 durch Stellung in welcher die Achse des Pleuels 9 in der Achse des Zylinders 3 liegt, die Bewegungsgeschwindigkeit des Schiebers 17 den höchsten Wert hat und die Öffnung des Ansaugskanals am schnellsten verläuft. Der Schieber. 17 erreicht die äusserste Stellung in der Stellung des Pleuels 9 in der höchsten Ablenkung von der Achse des Zylinders 3, wenn die Geschwindigkeit des Schiebers 17 den Nullwert hat, und seine Richtung wieder ändert. Die mechanische Verbindung des Schiebers 17 mit dem Schliessungselement 24, für die Schliessung- und Öffnung des Auspuffskanals 7 die gleiche Steuerung des Durchflussquerschnitts des Auspuf f skanals 7 ermöglicht und durch die geeignete Übertragung kann man erreichen, dass es sich zuerst drosselt ab den Querschnitt des Auspuffskanals 7 und erst nachher den Uberstromkanal 6 für den Durchfluss des Mediums durch die Uberströmung vom Kurbelgehäuse 2. Die Einrichtungsfunktion der Abb. 2 gemäss ist analogisch damit, dass zur Lagerung hinsichtlich des flachförmigen Schiebers 38, drehbar auf dem Bo l z en 63, in der Wandungen des Kurbelgehäuse 2 geschaffen, sich den Lagerbolzen 28 bewegt, auf dem Teilabschnitt des Kreises in der queren Richtung zur Achse des Zylinders 3 durch die Schwengenge Bewegung, wodurch sich durch die Schliessungsfläche im Teil 36 geformt, öffnet, resp. schliesst die Ausmündung 22 des Ansaugskanals 4. Die mechanische Verbindung des Teils 37 mit dem Vorsat z 39 durch den Bolzen 40, die Spurstange 41 und den Bolzen 42 mit dem Schliessungselement 43, die Steuerung der Schliessung und Öffnung des Auspuffskanals 7. Die geeignete Wahl der Übertragung zwischen den Elementen wird der verlangten Verlauf der Öffnung und der Schliessung des Auspuffskanals 7 zu erreichen ermöglicht. According to the invention, the function of the device is evident from FIG. 1. When the piston 5 moves from the remote position from the crankshaft 14, in the direction of the crankshaft 14, the connecting rod 9 bends out, from the axis of the cylinder 3 and the movement of the cross slide bearing 26 via the bearing pin 27 pushes the slide 17 into motion sets, and through the closing surface 20, the mouth 22 of the intake duct 4 in the crankcase 2 is closed. In the most distant position of the connecting rod 9 from the axis of the cylinder 3, the mouth 22 of the intake duct 4 is completely closed and the slide 17 reaches the outermost position, in which its speed is zero and its direction changes. With the rotation of the crankshaft 14 in the direction of the arrow, the slide 17 moves in the other direction and the mouth 22 of the intake duct 4 closes again and when the connecting rod 9 passes through position in which the axis of the connecting rod 9 is in the axis of the cylinder 3 lies, the speed of movement of the slide 17 has the highest value and the opening of the intake duct runs fastest. The slider. 17 reaches the outermost position in the position of the connecting rod 9 in the highest deflection from the axis of the cylinder 3 when the speed of the slide 17 has zero value and changes its direction again. The mechanical connection of the slide 17 with the closing element 24, for the closing and opening of the exhaust duct 7, enables the same control of the flow cross-section of the exhaust f duct 7 and by means of the suitable transmission it can be achieved that it is first throttles from the cross section of the exhaust duct 7 and only afterwards the overflow duct 6 for the flow of the medium through the overflow from the crankcase 2. The set-up function according to FIG. 2 is analogous to the fact that for storage with respect to the flat slide 38, rotatable on the bolt en 63, created in the walls of the crankcase 2, the bearing pin 28 moves, on the section of the circle in the transverse direction to the axis of the cylinder 3 by the Schwenggenge movement, whereby formed by the closing surface in part 36, opens, respectively. closes the mouth 22 of the intake duct 4. The mechanical connection of the part 37 with the attachment 39 through the bolt 40, the tie rod 41 and the bolt 42 with the closing element 43, the control of the closure and opening of the exhaust duct 7. The suitable choice of Transmission between the elements enables the required course of the opening and the closing of the exhaust duct 7 to be achieved.

Claims

Patentansprüche Claims
1. Der Zweitakt-Verbrennugskolbenmotor mit gesteuertem Ansaugen des Arbeitsmediums, mit dem Pleuel mit dem Pleuelslager und dem Pleuelauge für die Verbindung den Kolbenbolzen des Kolbens mit dem Pleuelslager der Kurbelwelle, gelagert mittels (durch) des Haupt-Kurbelzapfen im Kurbelgehäuse und den Verteilungs- und Steuerungsmechanismus, der Schliessungselement, gebildeten umkehrbaren beweglichen Schieber durch (mittls) den Verbindungselement gleitend und drehbar mit dem Pleuel gebunden ist 1. The two-stroke internal combustion piston engine with controlled suction of the working medium, with the connecting rod with the connecting rod bearing and the connecting rod eye for connecting the piston pin of the piston to the connecting rod bearing of the crankshaft, supported by means of the main crankpin in the crankcase and the distribution and Control mechanism, the closing element, reversible movable slide formed by (middle) the connecting element is slidably and rotatably connected to the connecting rod
g e k e n n z e i c h n e t d a d u r c h, dass  g e k e n n z e i c h n e t d a d u r c h that
das Verbindungselement wie der Kreuzschublager (26) gebildet im zweiseitigen Gleitsitz (21) im Pleuelschaft (10) des Pleuels (9) zwischen dem Pleuelslager (12) und dem Pleuelauge (11) gelagert ist und den Lagerbolzen (27) drehbar mit dem Teil (35,18,19) mit dem Schieber (17,38) verbunden ist, im Verbrennungsmotor (1) gelagert, für die Bewegung den Lagerbolzen (27) in der geradlinigen oder kreisrunden Bahn grundsätzlich quer zur Achse des Zylinders (3) und der Kreuzschublager (26) mit seinem Lagerbolzen (27) in einen Festteil gebunden ist.  the connecting element, like the cross slide bearing (26), is mounted in the double-sided sliding seat (21) in the connecting rod shaft (10) of the connecting rod (9) between the connecting rod bearing (12) and the connecting rod eye (11) and the bearing pin (27) is rotatable with the part ( 35, 18, 19) is connected to the slide (17.38), mounted in the internal combustion engine (1), for the movement of the bearing pin (27) in the straight or circular path, generally transverse to the axis of the cylinder (3) and the cross slide bearing (26) with its bearing bolt (27) is bound in a fixed part.
2. Der Zweitakt-Verbrennungskolbenmotor mit gesteuertem Ansaugen des Arbeitsmediums gemäss Anspruch 1, 2. The two-stroke combustion piston engine with controlled suction of the working medium according to claim 1,
g e k e n n z e i c h n e t d a d u r c h, dass  g e k e n n z e i c h n e t d a d u r c h that
der länglich-flach-förmige Schieber (17,18,19) oder der kreisrung-zylindrisch-förmige Schieber (17,18,19), wie der Kolben, gleitend gelagert in der Führungsbahn (31,32) in den Wandungen (33,34) des Kurbelgehäuse (2) grundsätzlich quer oder senkrecht oder schräg zur Achse des Zylinders (3) gelagert ist. the elongated, flat-shaped slide (17, 18, 19) or the circularly cylindrical slide (17, 18, 19), like the piston, is mounted in a sliding manner in the guideway (31, 32) in the walls (33, 34) of the crankcase (2) is generally mounted transversely or perpendicularly or obliquely to the axis of the cylinder (3).
3. Der Zweitakt-Verbrennungskolbenmotor mit gesteuertem Ansaugen des Arbeitsmediums gemäss Anspruch 1, 3. The two-stroke combustion piston engine with controlled suction of the working medium according to claim 1,
g e k e n n z e i c h n e t d a d u r c h, dass g e k e n n z e i c h n e t d a d u r c h that
der Lagerbolzen (27) des KreuzschubJägers (26) in der Öffnung (30) des Teils (35) des flach-förmigen Schiebers (38), mit der exzentrischen Öffnung (30) versehen, hinsichtlich zur Öffnung (46) für die schwenkende Lagerung (38) des Schiebers auf dem Parallel-Bolzen (63) gleichfaufend mit der Achse der Kurbelwelle (14). the bearing bolt (27) of the cross thrust hunter (26) in the opening (30) of the part (35) of the flat-shaped slide (38), provided with the eccentric opening (30), with respect to the opening (46) for the pivoting mounting ( 38) of the slide on the parallel pin (63) is in line with the axis of the crankshaft (14).
4. Der Zwei takt-Verbrennungskolbenmotor mit gesteuertem Ansaugen des Arbeitsmediums gemäss Anspruch 1,2 oder 3, g e k e n n z e i c h n e t d a d u r c h, dass 4. The two-stroke combustion piston engine with controlled suction of the working medium according to claim 1, 2 or 3, g e k e n n z e i c h n e t d a d u r c h that
der zweiseitige Gleitsitz (21) auf dem länglich-förmigen Vorsatz (47) auf der einen Seite des Pleuelschafts (10) des Pleuels (9) hergestellt (geformt) ist. the two-sided sliding seat (21) on the elongate-shaped attachment (47) on one side of the connecting rod shaft (10) of the connecting rod (9) is manufactured (shaped).
5. Der Zweitakt-Verbrennungskolbenmotor mit gesteuertem Ansaugen des Arbeitsmediums gemäss Anspruch 2 oder 3, g e k e n n z e i c h n e t d a d u r c h, dass 5. The two-stroke combustion piston engine with controlled suction of the working medium according to claim 2 or 3, g e k e n n z e i c h n e t d a d u r c h that
der zweiseitige Gleitzitz (21) auf den inneren Wandungen (61,62) der länglich-förmigen Öffnung (52) oder auf den äusseren Seitenwänden des Pleulschafts (10) des Pleuels (9) hergestellt ist. the double-sided sliding seat (21) is produced on the inner walls (61, 62) of the elongated opening (52) or on the outer side walls of the connecting rod shaft (10) of the connecting rod (9).
6. Der Zwei takt-Verbrennungskolbenmotor mit gesteurtem Ansaugen des Arbeitsmediums gemäss einem der Ansprüche 2-5, 6. The two-stroke internal combustion engine with controlled suction of the working medium according to one of claims 2-5,
g e k e n n z e i c h n e t d a d u r c h , dass g e k e n n z e i c h n e t d a d u r c h that
der Schieber (17,18,19,38) mit der Schliessungsfläche (20,60) geschaffen, für die Schliessung der Ausmündung (22) des Ansaugskanals (4) ins Kurbelgehäuse (2) mit dem Schliessungselement (24, 43) für die Schliessung des Auspuffskanals (7) gebunden ist. the slide (17, 18, 19, 38) with the closing surface (20, 60) is created for closing the mouth (22) of the intake duct (4) into the crankcase (2) with the closing element (24, 43) for the closing the exhaust duct (7) is bound.
PCT/CZ1993/000011 1992-04-14 1993-04-13 Two-stroke internal combustion engine with controlled working medium inlet suction WO1993021426A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CSPV1130-92 1992-04-14
CS921130A CZ113092A3 (en) 1992-04-14 1992-04-14 Two-stroke internal combustion engine with controlled medium intake

Publications (1)

Publication Number Publication Date
WO1993021426A1 true WO1993021426A1 (en) 1993-10-28

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CZ (1) CZ113092A3 (en)
SK (1) SK113092A3 (en)
WO (1) WO1993021426A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288637A (en) * 1994-12-17 1995-10-25 Keith Charles Sugden Two-stroke engine piston containing a valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE377210A (en) *
NL12006C (en) *
BE368276A (en) *
DE373757C (en) * 1921-03-12 1923-04-16 Paul H Weise Slide control for two-stroke internal combustion engines with double exhaust
FR609216A (en) * 1925-12-28 1926-08-11 Improvements to two-stroke engines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE377210A (en) *
NL12006C (en) *
BE368276A (en) *
DE373757C (en) * 1921-03-12 1923-04-16 Paul H Weise Slide control for two-stroke internal combustion engines with double exhaust
FR609216A (en) * 1925-12-28 1926-08-11 Improvements to two-stroke engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288637A (en) * 1994-12-17 1995-10-25 Keith Charles Sugden Two-stroke engine piston containing a valve
GB2288637B (en) * 1994-12-17 1996-09-18 Keith Charles Sugden Improvements in two-stroke engines

Also Published As

Publication number Publication date
SK113092A3 (en) 1995-03-08
CZ113092A3 (en) 1993-11-17

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