DE498014C - Two-stroke diesel engine with rows of scavenging air inlet and outlet slots arranged one above the other and helical reverse scavenging flow - Google Patents

Two-stroke diesel engine with rows of scavenging air inlet and outlet slots arranged one above the other and helical reverse scavenging flow

Info

Publication number
DE498014C
DE498014C DEA48189D DEA0048189D DE498014C DE 498014 C DE498014 C DE 498014C DE A48189 D DEA48189 D DE A48189D DE A0048189 D DEA0048189 D DE A0048189D DE 498014 C DE498014 C DE 498014C
Authority
DE
Germany
Prior art keywords
cylinder
scavenging
outlet slots
air inlet
stroke diesel
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
DEA48189D
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
Publication date
Priority to DEA48189D priority Critical patent/DE498014C/en
Application granted granted Critical
Publication of DE498014C publication Critical patent/DE498014C/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00Engines characterised by using fresh charge for scavenging cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2720/00Engines with liquid fuel
    • F02B2720/23Two stroke engines
    • F02B2720/231Two stroke engines with measures for removing exhaust gases from the cylinder

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Description

Zweitaktdieselmaschine mit übereinander angeordneten Spülluftein- und -austrittsschlitzreihen und schraubenförmigem Umkehrspülstrom Bei Zweitaktinaschinen ist es bekannt, durch kreisförmig angeordnete Schlitze Spülluft in den Zylinder zu drücken und die Spül-(r mit deri mitgenommenen Verbrennungsrückständen durch eine zweite, über der .ersten und ebenfalls am 7.vlindertunfange angeordnete Reihe von Schlitzen wieder abzuführen. Dabei fflirt ,die Spülluft nach ihrem Eintritt in den ZN-linder eine schraubenförmige Bewegung aus und entfernt sich zunächst in der Nähe und Richtung der Zvlinderachse voll den Einlaßschlitzen, wird dann aber an dem Zvlinder;leckel umgelenkt und strömt in umgekehrter Richtung an der Zylinderwand entlang zu den Austrittsschlitzen.Two-stroke diesel engine with scavenging air inlets arranged one above the other and exit slot rows and helical reverse flush flow in two-stroke machines it is known to purge air into the cylinder through circularly arranged slots to press and the rinsing (r with the entrained combustion residues through a second row, above the first and also on the 7th of the Vinderunfange to be discharged again from slots. In doing so, the purge air flirts after it enters a helical movement in the ZN-linder and initially moves away into the proximity and direction of the cylinder axis full of the inlet slots, but then on the cylinder; the leak is deflected and flows in the opposite direction on the cylinder wall along to the exit slots.

Die Erfindung besteht nun darin, diesen bekannten Spülverlauf .dadurch wirksamer zu machen. <laß die Ein- und Austrittsschlitze (abgesehen von einer etwaigen Schrägneigung zur Zvlinderachsei zur Umfangsrichtung des "Zylinders in ganz bestimmter Weise geneigt sind, derart, @daß die durch die Schlitze eintretende Spülluft bei ihrer Führung durch den Zylinder nicht nur in der bei Gleichstromspülung bekannten Weise eine schraubenförmige Drehbewegung ausführt, sondern claß die Drehbewegung nach der Bewegungsumkehr bis zu den Austrittsschlitzen erhalten bleibt uni für den leichten Abfluß der Abgase ausgenutzt wird. Die Auspuffschlitze erhalten nämlich eine entgegengesetzt gerichtete Schrägneigung zur Umfangsrichtung der Zylinder und der Eintrittsschlitze, so daß die Spülluft tangential zur Drehrichtung austreten kann.The invention now consists in this known flushing process to make it more effective. <leave the entry and exit slots (apart from one any inclination to the cylinder axis to the circumferential direction of the "cylinder in are inclined in a very specific way, @ that the entering through the slots Purge air as it is guided through the cylinder not only in the case of direct current purging known way executes a helical rotary movement, but claß the rotary movement after the reversal of movement up to the exit slits remains uni for the easy discharge of the exhaust gases is exploited. Namely, the exhaust ports received an opposite inclination to the circumferential direction of the cylinders and the inlet slots so that the scavenging air exit tangentially to the direction of rotation can.

In der Zeichnung ist die Erfindung an einer doppelten Zweitaktdiesehnaschine beispielsweise dargestellt.In the drawing, the invention is on a double two-stroke diesel machine for example shown.

Abb. i zeigt die Maschine im Längsschnitt, Abb. z einen Schnitt durch die oberen Spüllufteintrittskanäle nach Schnitt C-D der Abb. i und AbU. 3 einen Schnitt durch die oberen Austrittskanäle nach Schnitt A-13 der Abb. i. Beim Hochgang des Kolbens wird die Spüllifft in gleicher Weise- durch die in dem unteren Zylinder angeordneten Schlitze ein- und abgeführt.Fig. I shows the machine in longitudinal section, Fig. Z shows a section through the upper purge air inlet ducts according to section CD in Fig. I and AbU. 3 shows a section through the upper outlet channels according to section A-13 of FIG. I. When the piston goes up, the flushing vessel is introduced and discharged in the same way through the slots in the lower cylinder.

a ist der Zylinder, in dem sich der Kolben h bewegt. c sind die Spüllufteintrittskanäle. c1 die Spülluftaustrittskanäle. Die Spüllufteintrittskanäle sind schräg zur Umfangsrichtung des Zylinders geneigt, und zwar alle in derselben Richtung, so daß die einzelnen aufeinandertreffenden Spülluftstrahlen :ich durch das Zv linderinnere schraubenförmig nach dem Deckel e bewegen.a is the cylinder in which piston h moves. c are the purge air inlet ducts. c1 the purge air outlet ducts. The scavenging air inlet ducts are inclined to the circumferential direction of the cylinder inclined, all in the same direction, so that the individual Clashing purge air jets: I through the interior of the cylinder in a helical shape move after the cover e.

Am Zylinderdeckel erfolgt dann die Umkehrung des Spülluftstromes und seine Führung an der Zylinderwand im, Gegenstrom zur bisherigen Richtung. Der ursprüngliche Drehsinn wird hierbei beibehalten, so daß eine gründliche Spülung des Zylinderinnern erreicht wird. Der Austritt der Spülluft mit den Abgasresten . erfolgt dann durch die Schlitze d, die zur Umfangsrichtung des Zylinders umgekehrt geneigt sind wie die Eintrittsschlitze, damit die Spülluft und die mitgerissenen Abgasreste tangential zu der vorhandenen Drehrichtung abströmen können.The purging air flow is then reversed on the cylinder cover and its guidance on the cylinder wall in, countercurrent to the previous direction. The original one The direction of rotation is retained, so that the inside of the cylinder can be thoroughly rinsed is achieved. The exit of the purge air with the residual exhaust gas. then takes place through the slits d inclined to the circumferential direction of the cylinder inversely as the inlet slots, so that the scavenging air and the entrained exhaust gas residues are tangential can flow off to the existing direction of rotation.

Claims (1)

PATENTANSPRUCH: Zweitaktdiesehnaschine mit übereinander angeordneten Spülluftein- und -austrittssclilitzreilren in der Zylinderwand, bei der die Spülhift nach ihrem Eintritt in den Zvlinder eine schraubenförmige Belvegung ausführt und sich zunächst in der Nähe und Richtung der Zylinderachse von den Einlaßschlitzen entfernt, dann aber an dem Zvlinderdeckel umgelenkt wird und in umgekehrter Richtung an der Zylinderwand entlang zli den Austrittsschlitzen strömt, dadurch gekennzeichnet, daß sowohl die Eintritts- als auch die Austrittsschlitze.-schräg zur Umfangsrichtung des Zylinders, jedoch im entgegengesetzten pinne zueinander geneigt sind. PATENT CLAIM: Two-stroke diesel machine with scavenging air inlet and outlet slots in the cylinder wall, in which the scavenging shift executes a helical configuration after entering the cylinder and initially moves away from the inlet slots near and in the direction of the cylinder axis, but then deflects at the cylinder cover and flows in the opposite direction along the cylinder wall along the outlet slots, characterized in that both the inlet and outlet slots are inclined to the circumferential direction of the cylinder, but in the opposite pin to each other.
DEA48189D Two-stroke diesel engine with rows of scavenging air inlet and outlet slots arranged one above the other and helical reverse scavenging flow Expired DE498014C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA48189D DE498014C (en) Two-stroke diesel engine with rows of scavenging air inlet and outlet slots arranged one above the other and helical reverse scavenging flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA48189D DE498014C (en) Two-stroke diesel engine with rows of scavenging air inlet and outlet slots arranged one above the other and helical reverse scavenging flow

Publications (1)

Publication Number Publication Date
DE498014C true DE498014C (en) 1930-05-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEA48189D Expired DE498014C (en) Two-stroke diesel engine with rows of scavenging air inlet and outlet slots arranged one above the other and helical reverse scavenging flow

Country Status (1)

Country Link
DE (1) DE498014C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919852C (en) * 1949-11-08 1954-11-04 Kloeckner Humboldt Deutz Ag Slot-controlled two-stroke diesel engine
US2731004A (en) * 1953-01-26 1956-01-17 Texas Co Exhaust ports for internal-combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919852C (en) * 1949-11-08 1954-11-04 Kloeckner Humboldt Deutz Ag Slot-controlled two-stroke diesel engine
US2731004A (en) * 1953-01-26 1956-01-17 Texas Co Exhaust ports for internal-combustion engines

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