DE1942364U - SLOT-CONTROLLED TWO-STROKE COMBUSTION MACHINE. - Google Patents
SLOT-CONTROLLED TWO-STROKE COMBUSTION MACHINE.Info
- Publication number
- DE1942364U DE1942364U DEF26014U DEF0026014U DE1942364U DE 1942364 U DE1942364 U DE 1942364U DE F26014 U DEF26014 U DE F26014U DE F0026014 U DEF0026014 U DE F0026014U DE 1942364 U DE1942364 U DE 1942364U
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- slot
- overflow
- slots
- controlled
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F02F1/18—Other cylinders
- F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
-
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
-
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
-
- 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
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
A.3FK5'i*1S.5.6iiA.3FK5'i * 1S.5.6ii
Pichtel & Sachs AG, Schweinfurt/MairN..^ ' äv | Patent- und GebrauchsmusterhilfsanmeldungPichtel & Sachs AG, Schweinfurt / MairN .. ^ 'ä v | Patent and utility model registration
Schlitzgesteuerte Zweitaktbrennkraftmaschine Slot-controlled two-stroke internal combustion engine
Die Erfindung bezieht sich auf eine schlitzgesteuerte Zweitaktbrennkraftmaschine mit Kurbelgehäusepumpe, bestehend aus einem Zylinder, einem Zylinderkopf, einem im Zylinder verschiebbaren Kolben, der sowohl zur Begrenzung des Yerbrennungsraumes als auch zur Steuerung des Gaswechselvorganges und damit der in der Zylinderwand vorgesehenen und mit entsprechenden Kanälen verbundenen Einlaß-, Auslaß- und Überströmschlitze dient, wobei ein zusätzlicher überströmschlitz auf der dem Auslaßschlitz gegenüberliegenden Zylinderwand angeordnet istoThe invention relates to a slot-controlled two-stroke internal combustion engine with a crankcase pump, consisting of a cylinder, a cylinder head, a piston displaceable in the cylinder, which serves both to limit the combustion chamber and to control it of the gas exchange process and thus the inlet, outlet and overflow slots provided in the cylinder wall and connected to corresponding channels serves, with an additional overflow slot being arranged on the cylinder wall opposite the outlet slot
Der Erfindung liegt die Aufgabe zugrunde, Zweitaktbrennkraftmaschinen der obengenannten Art zu verbessern«,The invention is based on the object of two-stroke internal combustion engines of the above type to improve ",
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der mit dem zusätzlichen Überstromschutz verbundene Überströmkanal den Ansaug» kanal durchdringt, so daß sich dieser vor seinem Eintritt in den Zylinderraum gabelt» Durch eine solche Ausbildung wird erfindungsge» maß eine wesentliche Leistungssteigerung bei Zweitaktbrennkraftmaschinen entsprechend dem Gattungsbegriff erzielt« Der erfindungsgemäße Vorschlag bietet ferner infolge der raumsparenden Anordnung des zusätzlichen t'berströmkanals eine gute Möglichkeit für eine größere Dimensionierung sämtlicher in der Zylinderwand vorgesehenen Schlitze9 insbesondere dann, wenn es sich um Brennkraftmaschinen mit kleinem Zylinderdurchmesser handelt. Sin weiterer Vorteil der Erfindung ist darin zu sehen, daß der zusätzliche überströmkanal durch die angesaugte Frischgäsmenge gekühlt wird, wodurch der Grad der Zylinderfüllung verbessert wird οThis object is achieved in that the with the additional overcurrent protection connected overflow channel the intake » channel penetrates, so that this before its entry into the Cylinder space forks "With such a design, inventive" measured a significant increase in performance in two-stroke internal combustion engines according to the generic term achieved «The proposal according to the invention Furthermore, due to the space-saving arrangement of the additional overflow channel, it offers a good opportunity for larger dimensions all slots 9 provided in the cylinder wall in particular when it comes to internal combustion engines with a small cylinder diameter acts. Another advantage of the invention is the fact that the additional overflow channel through the amount of fresh gas sucked in is cooled, whereby the degree of cylinder filling is improved ο
Wird gemäß einem Merkmal der Erfindung beachtet, daß der Zylinder auf seiner Ansaugseite mindestens einen in Sichtung der Zylinderachse verlaufenden nicht durch Schlitze unterbrochenen Flächenabschnitt aufweist, so lassen sich in diesem Bereich die Kolbenringstoßkanten ohne Gefahr auf dem Kolben unterbringen<,If it is observed according to a feature of the invention that the cylinder on its intake side at least one running in sight of the cylinder axis has surface section not interrupted by slots, the piston ring abutment edges can be in this area without danger place on the piston <,
In der Zeichnung ist der Zylinder eine'r nach der Erfindung ausgebildeten Zweitaktbrennkraftiaaschine schematisch dargestellt und zwar zeigtIn the drawing, the cylinder is designed according to the invention Two-stroke combustion engine shown schematically, namely indicates
Figo 1 einen Längsschnitt durch den Zylinder nach der Erfindung» Figo 1 is a longitudinal section through the cylinder according to the invention »
gig» 2 einen Querschnitt .11-11 durch ^inen Zylinder entsprechend Fig. 1 ο : gig »2 a cross section .11-11 through ^ a cylinder according to Fig. 1 o:
In Anwendung der bekannten Dreistromspülung weist der Zylinder 1 zwei zum Auslaßkanal 5 symmetrische, in Richtung auf den Ansaugkanal 4 gerichtete Überströmkanäle 2 auf, denen ein dritter zusätzlicher Überströmkanal 5 zugeordnet ist ο Der Überströmkanal 5 befindet sich an der dem Auslaßkanal 3 gegenüberliegenden Zylinderwand und durchdringt erfindungsgemäß den Ansaugkanal 4S so da3 sich dieser vor seinem Eintritt in den Zylinderraum gabelt»In application of the known three-flow flushing, the cylinder 1 has two overflow channels 2 symmetrical to the outlet channel 5, directed towards the intake channel 4, to which a third additional overflow channel 5 is assigned o The overflow channel 5 is located on the cylinder wall opposite the outlet channel 3 and penetrates according to the invention the intake port 4 S so that it forks before it enters the cylinder chamber »
Der im Zylinder 1 verschiebbar angeordnete Kolben 7 der Zweitaktbrennkraftmaschine dient nicht nur zur Begrenung des Verbrennungsraumes 6, sondern auch zur Steuerung des Gaswechselvorganges und damit der in der Zylinderwand vorgesehenen Schlitze 2% 3'? 4' und 5'° Wie bekannt, weist der Kolben 7 zur Abdichtung des Verbrennungsräumes 6 Kolbenringe 9 auf, die in entsprechend ausgebildeten Hüten des Kolbens gelagert sind» Zwischen den mit 10 bezeichneten Stoßkanten der Kolbenringe 9 ist jeweils ein Stift 11'zur Fixierung der Kolbenringe vorgesehen* Da der Zylinder gemäß einem Merkmal der Erfindung auf seiner Ansaugseite in Richtung der Zylinderachse verlaufende Flächenabschnitte 12 aufweist, die nicht durch Schlitze in der Zylinderwand unterbrochen werden, sind in diesem Abschnitt die Ri&gstoßkanten 10 der Kolbenringe 9 angeordnet.The piston 7 of the two-stroke internal combustion engine, which is arranged displaceably in the cylinder 1 serves not only to limit the combustion chamber 6, but also to control the gas exchange process and thus that in the Cylinder wall provided slots 2% 3 '? 4 'and 5' ° As known, points the piston 7 for sealing the combustion chamber 6 piston rings 9, which are stored in appropriately designed hats on the piston » Between the abutting edges designated by 10 of the piston rings 9 is in each case a pin 11 'is provided for fixing the piston rings * Since the Cylinder according to a feature of the invention on its intake side has surface sections 12 extending in the direction of the cylinder axis, which are not interrupted by slots in the cylinder wall, the rubbing edges 10 of the piston rings 9 are arranged in this section.
Beim Kompressionstakt wird der Kolben 7 in Richtung des oberen Totpunktes bewegt und gibt schließlich die Einlaßschlitze 4" frei, so daß die Frischgasmenge in das nicht näher dargestellte Kurbelgehäuse angesaugt werden kann«. Beim Arbeitstakt wird zunächst der Auspuff schlitz 3' von der Oberkante des Kolbens 7 freigegeben und ein Teil des unter Explosionsdruck stehenden Abgases kann duröh den Auslaßkanal 3 entweichen« Bei der weiteren Abwärtsbewegung des Kolbens 7 werden die Überströmschlitze 2! und 5" geöffnet, s.o daß die im Kurbelgehäuse nunmehr vorverdichtete Frisch-During the compression stroke, the piston 7 is moved in the direction of top dead center and finally releases the inlet slots 4 "so that the fresh gas can be sucked into the crankcase (not shown)." 7 released and part of the exhaust gas under explosion pressure can escape through the outlet duct 3. As the piston 7 continues to move downwards, the overflow slots 2 ! And 5 "are opened so that the freshly
gasmenge in den Verbrennungsraum 6 gelangen kann. Der hierbei in drei Strömen in den Verbrennungsraum eintretende Frischgasstrom dient gleichzeitig zur v/irksamen Spülung des Verbrennungsraumes.amount of gas can get into the combustion chamber 6. The one here in three Fresh gas flow entering the combustion chamber serves at the same time for effective flushing of the combustion chamber.
Die Erfindung beschränkt sich nicht auf das dargestellte Ausführungsbeispielo Insbesondere können die Steuerzeiten und -Eintrittswinkel der Uberströmschlitze variiert werden»The invention is not limited to the illustrated embodiment In particular, the timing and entry angle of the overflow slots can be varied »
13. 5* 196413.5 * 1964
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF26014U DE1942364U (en) | 1964-05-16 | 1964-05-16 | SLOT-CONTROLLED TWO-STROKE COMBUSTION MACHINE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF26014U DE1942364U (en) | 1964-05-16 | 1964-05-16 | SLOT-CONTROLLED TWO-STROKE COMBUSTION MACHINE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1942364U true DE1942364U (en) | 1966-07-14 |
Family
ID=33332955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF26014U Expired DE1942364U (en) | 1964-05-16 | 1964-05-16 | SLOT-CONTROLLED TWO-STROKE COMBUSTION MACHINE. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1942364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2319662A1 (en) * | 1973-04-18 | 1974-11-14 | Zuendapp Werke Gmbh | TWO-STROKE COMBUSTION ENGINE |
-
1964
- 1964-05-16 DE DEF26014U patent/DE1942364U/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2319662A1 (en) * | 1973-04-18 | 1974-11-14 | Zuendapp Werke Gmbh | TWO-STROKE COMBUSTION ENGINE |
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