DE547591C - Arrangement of exhaust ports in cylinders of double-acting two-stroke internal combustion engines with two pistons running in the same direction and one in opposite direction - Google Patents
Arrangement of exhaust ports in cylinders of double-acting two-stroke internal combustion engines with two pistons running in the same direction and one in opposite directionInfo
- Publication number
- DE547591C DE547591C DENDAT547591D DE547591DD DE547591C DE 547591 C DE547591 C DE 547591C DE NDAT547591 D DENDAT547591 D DE NDAT547591D DE 547591D D DE547591D D DE 547591DD DE 547591 C DE547591 C DE 547591C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- arrangement
- cylinders
- acting
- double
- 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
-
- 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
- F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
-
- 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
Description
Anordnung der Auspuffschlitze bei Zylindern von doppeltwirkenden Zweitakt-Verbrennungskraftmaschinen mit zwei gleichläufigen und einem gegenläufigep Kolben Gegenstand vorliegender Erfindung ist die Anordnung der Auspuffschlitze bei Zylindern der bekannten Bauart von doppeltwirkenden Zweitakt - Verbrennungskraftmaschinen mit zwei gleichläufigen und einem gegenläufigen Kolben, bei welchen die für beide Zylinderseiten gemeinsamen Auspuffschlitze von dem gegenläufigen Kolben gesteuert werden. Erfindungsgemäß reichen diese Schlitze bei der oberen Totlage des Kolbens nicht bis zur unteren Kolbenkante, welche den Auspuff der unteren Zylinderseite steuert, sondern enden in einer gewissen Entfernung von dieser Kante.Arrangement of the exhaust ports in cylinders of double-acting two-stroke internal combustion engines with two pistons rotating in the same direction and one in opposite directions is the arrangement of the exhaust ports in cylinders of the known type of double-acting Two-stroke internal combustion engines with two co-rotating and one counter-rotating Pistons in which the exhaust ports common to both cylinder sides of the counter-rotating piston can be controlled. According to the invention, these slots are sufficient at the top dead center of the piston not up to the lower edge of the piston, which is the Exhaust controls the lower cylinder side but ends at a certain distance from this edge.
Eine solche Anordnung hat gegenüber der bisherigen Ausführung den großen Vorteil, daß der Arbeitshub des Kolbens auf der oberen Zylinderseite um den Betrag der Verkürzung der Auspuffschlitze auf der Unterseite des Kolbens vergrößert wird. Dadurch erzielt man bei sonst gleichen Abmessungen der Maschine einerseits eine größere Leistung und einen größeren Wirkungsgrad, andererseits eine ausgiebige Kühlung der Stege der Auspuffschlitze, so daß die Kolbenringe geschont werden, denn die Zeit, während welcher die Kolbenringe mit den heißen Stegen in Berührung kommen, wird verkürzt was auch einen günstigen Einfluß auf die Festigkeit des Zylinders bzw. der Zylinderbüchse hat.Such an arrangement has compared to the previous version great advantage that the working stroke of the piston on the upper cylinder side by the The amount of shortening of the exhaust ports on the underside of the piston is increased will. This achieves on the one hand with otherwise the same dimensions of the machine a greater power and a greater degree of efficiency, on the other hand an extensive one Cooling of the webs of the exhaust slots, so that the piston rings are spared, because the time during which the piston rings come into contact with the hot lands, is shortened which also has a favorable influence on the strength of the cylinder or the cylinder liner.
Ein Beispiel für die Ausführung des Erfindungsgegenstandes ist schematisch in den Abb. i und 2 dargestellt, welche den Aufriß und Seitenriß der Maschine im Längsschnitt veranschaulichen.An example of the implementation of the subject matter of the invention is schematic shown in Figs. i and 2, which are the elevation and side elevation of the machine in FIG Illustrate longitudinal section.
In beiden Abbildungen ist der gegenläufige Kolben 2, durch welchen die Auspuffschlitze i gesteuert werden, in der oberen Totlage gezeichnet. In dieser Lage reichen die Auspuffschlitze i nicht bis zur Unterkante 3 des Kolbens 2, sondern enden in einer gewissen Entfernung schon vor dieser Kante 3, so daß hier ein von den Verbrennungsgasen erfüllter Raum entsteht; die Gase werden jedo--h bei der Rückkehrbewegung des Kolbens 2 durch die Auspuffschlitze i herausgedrückt und können keinen schlechten Einfluß auf die Spülung der unteren Zylinderseite q. ausüben. Wenn die Spülschlitze 5 durch die beiden gleichläufigen Kolben 6 gesteuert werden und wenn der gemeinsame Hub der beiden Kolben 6 zum Zwecke des besseren Massenausgleiches kleiner ist als der Hub des gegenläufigen Kolbens 2 und wenn auch die Kurbeln 7 gegenüber der Kurbel 8 um einen gewissen Winkel versetzt sind, um eine vorteilhafte Nachfüllung des Zylinders mit frischer Luft zu erzielen, so erreicht man durch die Anordnung dieser verkürzten Auspuffschlitze i eine Vergrößerung des nutzbaren Kolbenhubes auf der Oberseite des Zylinders um etwa 5 bis 6 °/o.In both figures is the opposing piston 2, through which the exhaust ports i controlled, drawn in the top dead center. In this Position, the exhaust slots i do not extend to the lower edge 3 of the piston 2, but end at a certain distance before this edge 3, so that here a from The space filled with the combustion gases is created; the gases are, however, on the return movement of the piston 2 pushed out through the exhaust slots i and can not be a bad one Influence on the flushing of the lower cylinder bank q. exercise. When the flushing slots 5 can be controlled by the two co-rotating pistons 6 and if the common Stroke of the two pistons 6 is smaller than for the purpose of better mass balancing the stroke of the opposing piston 2 and even if the cranks 7 opposite the crank 8 are offset by a certain angle in order to advantageously refill the cylinder to achieve with fresh air, one achieves by the arrangement of these foreshortened Exhaust slots i an enlargement of the usable piston stroke on the top of the cylinder by about 5 to 6 per cent.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE547591T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE547591C true DE547591C (en) | 1932-04-12 |
Family
ID=6561619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT547591D Expired DE547591C (en) | Arrangement of exhaust ports in cylinders of double-acting two-stroke internal combustion engines with two pistons running in the same direction and one in opposite direction |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE547591C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003984B (en) * | 1953-12-31 | 1957-03-07 | Adolf Roth Dipl Ing | Two-stroke engine with the crankshaft next to the cylinder and three pistons per cylinder |
DE4243255A1 (en) * | 1992-12-19 | 1994-06-23 | Graf Peter Von Ingelheim | Internal combustion engine with two pistons per work area, especially a two-stroke engine with DC flushing |
-
0
- DE DENDAT547591D patent/DE547591C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003984B (en) * | 1953-12-31 | 1957-03-07 | Adolf Roth Dipl Ing | Two-stroke engine with the crankshaft next to the cylinder and three pistons per cylinder |
DE4243255A1 (en) * | 1992-12-19 | 1994-06-23 | Graf Peter Von Ingelheim | Internal combustion engine with two pistons per work area, especially a two-stroke engine with DC flushing |
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