DE444507C - Double-acting two-stroke internal combustion engine with slot scavenging - Google Patents
Double-acting two-stroke internal combustion engine with slot scavengingInfo
- Publication number
- DE444507C DE444507C DEM78764D DEM0078764D DE444507C DE 444507 C DE444507 C DE 444507C DE M78764 D DEM78764 D DE M78764D DE M0078764 D DEM0078764 D DE M0078764D DE 444507 C DE444507 C DE 444507C
- Authority
- DE
- Germany
- Prior art keywords
- acting
- double
- internal combustion
- combustion engine
- stroke internal
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging 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
- F02B2720/00—Engines with liquid fuel
- F02B2720/23—Two stroke engines
- F02B2720/231—Two stroke engines with measures for removing exhaust gases from the cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Doppelt wirkende Zweitaktverbrennungskraftmaschine mit Schlitzspülung. Den Gegenstand der Erfindung- bildet. die Anordnung der Spülschlitze bei einer mit einseitiger Umkehrspülung arbeitenden doppelt wirkenden Zweitaktdiesehnaschine. Unter einer Maschine mit einseitiger Umkehrspülung ist -in diesem Zusammenhang eine Maschine zu verstehen, bei der die von den Eintrittsschlitzen herkommende Spülluft auf die gegenüberliegende Zylinderwand zufließt und 'an ihr entlang zum Zylinderdeckel strömt, dort umkehrt und den Auspuffschlitzen zufließt. Die Erfindung beruht auf der Erkenntnis, daß sich auf der Stopfbüchsenseite einer doppelt wirkenden Dieselmaschine eine Störung des Spülverlaufes durch die Kolbenstange, die hier infolge ihres großen Durchmessers einen Teil des Zylinderinnern versperrt, vermeiden läßt. Insbesondere werden Wirbelbildungen, die bei einer ungeeigneten Anordnung der Einlaßschlitze leicht hervorgerufen werden können; insoweit vermieden, als sich dies bei einem derartigen Spülverfahren überhaupt erreichen läßt.Double-acting two-stroke internal combustion engine with slot scavenging. The subject of the invention forms. the arrangement of the flushing slots in one with one-sided reverse flush working double-acting two-stroke machine. In this context, under a machine with one-sided reverse flushing is one To understand machine in which the purge air coming from the inlet slots flows towards the opposite cylinder wall and 'along it to the cylinder cover flows, reverses there and flows towards the exhaust ports. The invention is based on the realization that on the stuffing box side of a double-acting diesel engine a disturbance of the flushing process by the piston rod, which here as a result of its large Diameter blocked a part of the cylinder interior, can be avoided. In particular vortex formations that occur with an improper arrangement of the inlet slots can be easily evoked; avoided insofar as this is the case with a can achieve such a flushing process at all.
Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung, und zwar stellt Abb. r einen Längsschnitt durch die Zylinderachse dar, Abb. 2 einen Schnitt senkrecht zu ihr in Richtung A-B.The drawing shows an embodiment of the invention, namely Fig. r shows a longitudinal section through the cylinder axis, Fig. 2 shows a section perpendicular to her in direction A-B.
Die Zylinderwand ist mit a bezeichnet, die Einlaßschlitze mit b und die Auslaßschlitze mit c ; d ist das Brennstoffventil, e der Zylinderdeckel. Der Kolben f befindet sich in der oberen Totlage. Die Spülluft tritt durch die Einlaßschlitze b in die Zylinder ein. Die Teilströme der Spülluft sind, wie Abb. 2 zeigt, so gerichtet, daß sie an der Kolbenstange g vorbeiströmen, ohne auf diese aufzuprallen, und sich in dem Raum h zu einem geschlossenen Strom vereinigen. Wie Abb. z in strichpunktierten Linien zeigt, fließt dieser Strom zwischen der Kolbenstange g und der rechten Seite der Zylinderwand dem unteren Zylinderdeckel zu. Dort kehrt er um, teilt sich in zwei Hälften, die an den beiden Seiten der Kolbenstange vorbeifließen, sich wieder vereinigen und zwischen der Kolbenstange und der linken Seite der Zylinderwand den Auspuffschlitzen c zufließen. Sowohl der aufsteigende wie auch der absteigende Ast des Spülstromes ist hierbei @zwischen Kolbenstange und Zylinderwand geführt, und die Bildung von Wirbelungen wird so weit vermieden, wie sich dies bei einer derartigen Spülung praktisch ermöglichen läßt.The cylinder wall is designated with a, the inlet slots with b and the outlet slots with c; d is the fuel valve, e the cylinder cover. Of the Piston f is in the upper dead position. The purge air passes through the inlet slots b into the cylinder a. As Fig. 2 shows, the partial flows of the purge air are directed in such a way that that they flow past the piston rod g without hitting this, and themselves unite in space h to form a closed stream. As Fig. Z in dash-dotted lines Lines shows, this current flows between the piston rod g and the right side the cylinder wall to the lower cylinder cover. There he turns back, divides into two halves flowing past either side of the piston rod come together again unite and between the piston rod and the left side of the cylinder wall Flow to exhaust slots c. Both the ascending and the descending branch the flushing flow is routed between the piston rod and the cylinder wall, and the formation of eddies is avoided as far as this is the case Can practically enable flushing.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM78764D DE444507C (en) | Double-acting two-stroke internal combustion engine with slot scavenging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM78764D DE444507C (en) | Double-acting two-stroke internal combustion engine with slot scavenging |
Publications (1)
Publication Number | Publication Date |
---|---|
DE444507C true DE444507C (en) | 1927-05-21 |
Family
ID=7318186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM78764D Expired DE444507C (en) | Double-acting two-stroke internal combustion engine with slot scavenging |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE444507C (en) |
-
0
- DE DEM78764D patent/DE444507C/en not_active Expired
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