DE482224C - Four-stroke internal combustion engine, in particular diesel engine with recharging - Google Patents
Four-stroke internal combustion engine, in particular diesel engine with rechargingInfo
- Publication number
- DE482224C DE482224C DEK103750D DEK0103750D DE482224C DE 482224 C DE482224 C DE 482224C DE K103750 D DEK103750 D DE K103750D DE K0103750 D DEK0103750 D DE K0103750D DE 482224 C DE482224 C DE 482224C
- Authority
- DE
- Germany
- Prior art keywords
- air
- stroke
- internal combustion
- cylinder
- recharging
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
-
- 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
- F02B2720/22—Four stroke engines
- F02B2720/223—Four stroke engines with measures for charging, increasing the power
Description
Viertaktbrennkraftmaschine, insbesondere Dieselmaschine mit Nachladung Die Erfindung betrifft Viertaktbrennkraftmaschinen, insbesondere Dieselmaschinen mit Nachladung, bei denen die eintretende Luft eine zur Zylinderachse orthogonale Drehbewegung erhält. Zur Bildung dieser Dreh-oder Wirbelbewegung bedient man sich bekanntlich eines auf das Einlaßventil aufgesetzten Telleraufsatzes, was aber den schwerwiegenden Nachteil hat, da.ß die volumetrische Leistung des Motors stark herabgesetzt wird, und zwar in um so@ erheblicherem Maße, als die erforderliche Wirbelgeschwindigkeit eine höhere ist. Um diesem Übelstande zu begegnen, benutzt man bereits in bekannter Weise von einem geeigneten Kompressor gelieferte Druckluft, welche durch das Einlaßventil eingepreßt wird.Four-stroke internal combustion engine, in particular diesel engine with recharging The invention relates to four-stroke internal combustion engines, in particular diesel engines with reloading, in which the incoming air is orthogonal to the cylinder axis Rotational movement receives. One makes use of this rotary or whirling movement known to be a plate attachment placed on the inlet valve, but what the has a serious disadvantage that the volumetric power of the engine is greatly reduced becomes, and indeed to a greater extent than the required vortex speed is a higher one. In order to counter this disadvantage, one already uses a well-known Compressed air supplied by a suitable compressor, which passes through the inlet valve is pressed in.
Es ist an sich bekannt, am Ende des Saughubes eine gewisse Menge Zusatzluft in den Zylinder einer solchen Maschine einzuführen. Ferner ist an sich bekannt, Druckluft in den Zylinder einzuführen, und zwar durch öffnungen in der Zylinderwand, die so gerichtet sind, daß eine Wirbelbewegung der am Ende des Arbeitshubes eingeführten Spülluft entsteht, um die Wirksamkeit der Spülung zu erhöhen.It is known per se to have a certain amount of additional air at the end of the suction stroke to introduce into the cylinder of such a machine. It is also known per se Introduce compressed air into the cylinder through openings in the cylinder wall, which are directed so that a vortex movement of the introduced at the end of the working stroke Purge air is created to increase the effectiveness of the purge.
Gemäß der Erfindung wird die beim Einströmen der Luft in. den Arbeitszylinder durch das Einlaßventil in bekannter Weise hervorgebrachte tangentiale Luftwirbelung durch die Wirbelurig der ebenfalls in bekannter Weise durch tangential in der Zy- linderwand arrgeardnete, am Ende des Saughubes freigegebene Schlitze eintretende Nachladedruckluft unterstützt.According to the invention, the tangential air turbulence produced in a known manner by the inlet valve when the air flows into the working cylinder is supported by the turbulence of the post-charge compressed air entering also in a known manner through slots which are tangentially locked in the cylinder wall and released at the end of the suction stroke.
Ein weiteires Merkmal der Erfindung besteht ferner darin, daß am S@chluß des Expansionshubes der Druckluftstrom als Spülstrom in den Zylinder eingeführt wird und der Auspuff mit Voreilung stattfindet.Another feature of the invention is that on the closure of the expansion stroke, the compressed air flow is introduced into the cylinder as a flushing flow and the exhaust takes place with advance.
Abb. i zeigt beispielsweise einen senkrechten Axialschnitt -durch einen Motor, Abb. z einen Schnitt nach B-B von Abb.3. Abb.3 einen Schnitt nach A-A von Abb. i. Abb. .4 ist eine Unteransicht.Fig. I shows, for example, a vertical axial section through a motor, Fig. z a section according to B-B of Fig.3. Fig.3 a section according to A-A from Fig. i. Fig. 4 is a bottom view.
Das Eänlaßventil i trägt Birnen Telleraufsatz 1a von zunächst verhältnismäßig geringer Ausdehnung, so daß bieim Ansaugen ein Wirbel mäßiger Geschwindigkeit entsteht. Der in den unteren Totpunkt anlangende Kolben a gibt auf der Zylinderperipherie angebrachte Öffnungen 3 frei. In die Ringkam. mer q. tritt dann; von einem Kompressor kommende Druckluft durch einen Rohrstutzen 5 annähernd tangential ein. Hierdurch wird die Wirbelbewegung der durch das Eintrittsventil i eingetretenen Luft beschleunigt und die Füllung des Zylinders entsprechend der Querschmttswdte der Öffnungen und der Stärke des Druckes der zusätzlichen Luftvervollständigt. Man kann zwischen die Kammer ¢ und den. Kompressor ein beliebig gesteuertes Absperrmittel anbringen, welches den Eintritt der Luft durch die Öffnungen 3 erst am Ende des Saughubes des Kolbens gestattet.The inlet valve i carries pear plate attachment 1a from initially relatively small expansion, so that a vortex of moderate speed is created during suction. The piston a reaching the bottom dead center is on the cylinder periphery attached openings 3 free. In the ring came. mer q. then steps; from a compressor incoming compressed air through a pipe socket 5 almost tangentially. Through this the vortex movement of the air that has entered through the inlet valve i is accelerated and the filling of the cylinder according to the cross sections of the openings and the strength of the pressure of the additional air. You can choose between the Chamber ¢ and the. Attach any controlled shut-off device to the compressor, which the Entry of the air through the openings 3 is only permitted at the end of the suction stroke of the piston.
Der Eintritt der Preßluft kamn auch entsprechend der Erfindung erst am Ende des Expansionshubes stattfinden. In diesem Falle ist ein besonderes Abschlußmittel entbehrlich. Das Auslaßventil erhält eine Steuerung, welche dessen Öffnung mit einer gewissen Voreilung veranlaßt, so daß der Kolben 2 die Öffnungen 3 aufdeckt und die eintretenden Preßluftstrahlen die Rüclrstandsgase austreiben. Gleichzeitig unterstützen und beschleunigen sie die Wirbelung, welche die Luft bei ihrem Eintritt durch das Einlaßventil erhalten hat, so daß die Gesamtgasmasse in gleichem Sinne sich intensiv weiterdreht. Wenn das Lufteinlaßventil i sich öffnet, ist die Wirbelbewegung im Zylinder bereits eingeleitet. Der Eintritt der Preßluft am Ende der Expansion hat außerdem den Vorteil, daß die Rückstandsgase gründlicher aus dem Zylinder ausgetrieben werden und daß die Innenwandung des letzteren intensiv gekühlt wird. Spritzdüsen 7 dienen zum Eintritt des Brennstoffes.The entry of the compressed air came only according to the invention take place at the end of the expansion stroke. In this case there is a special means of closing dispensable. The exhaust valve receives a control which its opening with a Caused certain advance, so that the piston 2 uncovered the openings 3 and the incoming compressed air jets expel the residual gases. Support at the same time and accelerate the eddies which the air creates as it enters through the Inlet valve has received, so that the total gas mass is intense in the same sense continues to rotate. When the air inlet valve i opens, the vortex movement is im Cylinder already initiated. The entry of the compressed air at the end of the expansion has also the advantage that the residual gases are driven out of the cylinder more thoroughly and that the inner wall of the latter is intensively cooled. Spray nozzles 7 serve for the entry of the fuel.
FaUs es nw einer verhältnismäßig geringen WiTbelgeschwindigkeit.bedarf, ist es unnötig, das Saugventil mit einem Telleraufsatz ia ZU, versehen.If it is necessary to have a relatively low whirling speed, it is unnecessary to close the suction valve with a plate attachment.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK103750D DE482224C (en) | 1927-04-06 | 1927-04-06 | Four-stroke internal combustion engine, in particular diesel engine with recharging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK103750D DE482224C (en) | 1927-04-06 | 1927-04-06 | Four-stroke internal combustion engine, in particular diesel engine with recharging |
Publications (1)
Publication Number | Publication Date |
---|---|
DE482224C true DE482224C (en) | 1929-09-10 |
Family
ID=7240254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK103750D Expired DE482224C (en) | 1927-04-06 | 1927-04-06 | Four-stroke internal combustion engine, in particular diesel engine with recharging |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE482224C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764278C (en) * | 1939-03-22 | 1952-04-21 | Franz Lang | Four-stroke internal combustion engine with air inlet slots in the lower dead center zone of the working cylinder |
DE888036C (en) * | 1951-05-10 | 1953-08-27 | Maschf Augsburg Nuernberg Ag | Air-compressing internal combustion engine, in particular four-stroke internal combustion engine |
-
1927
- 1927-04-06 DE DEK103750D patent/DE482224C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764278C (en) * | 1939-03-22 | 1952-04-21 | Franz Lang | Four-stroke internal combustion engine with air inlet slots in the lower dead center zone of the working cylinder |
DE888036C (en) * | 1951-05-10 | 1953-08-27 | Maschf Augsburg Nuernberg Ag | Air-compressing internal combustion engine, in particular four-stroke internal combustion engine |
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