AT414016B - Internal combustion engine has a flow path which terminates in an outlet opening in the region of the wall of a piston - Google Patents
Internal combustion engine has a flow path which terminates in an outlet opening in the region of the wall of a piston Download PDFInfo
- Publication number
- AT414016B AT414016B AT9632004A AT9632004A AT414016B AT 414016 B AT414016 B AT 414016B AT 9632004 A AT9632004 A AT 9632004A AT 9632004 A AT9632004 A AT 9632004A AT 414016 B AT414016 B AT 414016B
- Authority
- AT
- Austria
- Prior art keywords
- cylinder
- fire ring
- combustion engine
- internal combustion
- slot
- Prior art date
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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
- F02F1/186—Other cylinders for use in engines with two or more pistons reciprocating within same cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
- F16J10/04—Running faces; Liners
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
22
AT 414 016 BAT 414 016 B
Die Erfindung betrifft eine Brennkraftmaschine mit zumindest einem Zylinder, in welchem zwei gegenläufig oszillierende Kolben angeordnet sind.The invention relates to an internal combustion engine having at least one cylinder, in which two counter-oscillating pistons are arranged.
Gegenkolbenmotoren sind hinreichend bekannt, beispielsweise aus der DE 27 04 006 A1 oder 5 der DE 1 942 007 A.Opposite piston motors are well known, for example from DE 27 04 006 A1 or 5 DE 1 942 007 A.
Gegenkolbenmotoren haben den Vorteil eines guten Massenausgleichs. Da die Brennkammer zwischen den beiden Kolbenböden ausgebildet ist, kann auf einen als Kühlfläche wirkenden Zylinderkopf verzichtet werden, wodurch ein sehr guter thermischer Wirkungsgrad erzielt wer-io den kann.Counter-piston engines have the advantage of good mass balance. Since the combustion chamber is formed between the two piston crowns, it is possible to dispense with a cylinder head acting as a cooling surface, as a result of which a very good thermal efficiency can be achieved.
Durch Wandanlagerungen, insbesondere im Feuerstegbereich der Kolben, kommt es allerdings zu einer nachteiligen Beeinflussung des Brennverlaufs und des Schmierölverbrauches. 15 Die DE 863 870 C1 beschreibt eine Gegenkolben-Brennkraftmaschine mit in ihre Zylinder eingesetzten gekühlten Laufbüchsen. Ein Feuerring ist nicht vorgesehen.By Wandanlagerungen, especially in the land section of the piston, however, there is a detrimental effect on the combustion process and the consumption of lubricating oil. DE 863 870 C1 describes an opposed-piston internal combustion engine with cooled liners inserted into its cylinders. A ring of fire is not provided.
Aus der EP 1 061 294 A2 ist eine Brennkraftmaschine bekannt, bei der im Bereich der oberen Totpunktlage des Kolbens im Zylinder eine zylindrische Feuerringanordnung mit zwei separaten 20 Feuerringen angeordnet ist. Eine derartige, ohne Schlitz ausgeführte Feuerringanordnung ist für Gegenkolbenmotoren weniger geeignet.An internal combustion engine is known from EP 1 061 294 A2, in which a cylindrical ring of fire ring arrangement with two separate rings of fire rings is arranged in the region of the top dead center position of the piston in the cylinder. Such a slotless fire ring assembly is less suitable for opposed piston engines.
Aufgabe der Erfindung ist es, diese Nachteile zu vermeiden und bei einer Gegenkolben-Brennkraftmaschine der eingangs genannten Art Ablagerungen und den Schmierölverbrauch zu 25 reduzieren.The object of the invention is to avoid these disadvantages and to reduce deposits and the consumption of lubricating oil in an opposed-piston internal combustion engine of the type mentioned at the beginning.
Erfindungsgemäß wird dies dadurch erreicht, dass in einem der oberen Totpunktlage der Kolben zugeordneten Bereich ein im Wesentlichen zylindrischer Feuerring im Zylinder angeordnet ist, dessen Innendurchmesser vorzugsweise kleiner ist als der Durchmesser des Zylinders und 30 dass der Feuerring geschlitzt ausgeführt ist. Durch die geschlitzte Ausführung des Feuerringes wird ein leichtes Einsetzen in den vorzugsweise durch eine Zylinderbuchse gebildeten Zylinder ermöglicht. Die Breite des Feuerringes ist so dimensioniert, dass die Feuerstege der Kolben im oberen Totpunkt in den Feuerring eintauchen, wodurch Ablagerungen entfernt bzw. vermieden werden. 35According to the invention, this is achieved by arranging a substantially cylindrical ring of fire in the cylinder in an area associated with the upper dead center position of the piston, whose inner diameter is preferably smaller than the diameter of the cylinder and that the fire ring is slotted. Due to the slotted design of the fire ring easy insertion is made possible in the cylinder preferably formed by a cylinder liner. The width of the fire ring is dimensioned so that the flames of the piston at the top dead center dip into the fire ring, whereby deposits are removed or avoided. 35
Vorzugsweise ist dabei vorgesehen, dass der Feuerring in eine ringförmige Ausnehmung des Zylindermantels eingesetzt ist.Preferably, it is provided that the fire ring is inserted into an annular recess of the cylinder jacket.
Ein Abzeichnen des Schlitzes am Kolben durch Überfahren des Feuerringes durch den Kolben 40 kann dabei vermieden werden, wenn der Schlitz schräg, d.h. geneigt zur Zylinderachse, ausgeführt ist.A marking of the slot on the piston by passing over the fire ring by the piston 40 can be avoided if the slot obliquely, i. inclined to the cylinder axis, is executed.
Der Feuerring ist bevorzugt verdrehsicher im Zylinder angeordnet und wird vorzugsweise durch eine Verdrehsicherung gehalten. Dabei kann vorgesehen sein, dass die Verdrehsicherung des 45 Feuerringes durch eine vorzugsweise in den Schlitz eingreifende, in den Zylinder eingesetzte Schraube oder einen Stift gebildet ist. Besonders günstig ist es dabei, wenn die Verdrehscherung in den Schlitz eingesetzt ist und der Durchmesser der Schraube die Breite des Schlitzes voll ausfüllt. Auf diese Weise kann ein Verdrehen des Feuerringes, sowie auch ein unbeabsichtigtes Herausfallen verhindert werden. 50The fire ring is preferably arranged against rotation in the cylinder and is preferably held by a rotation. It can be provided that the anti-rotation of the ring of fire 45 is formed by a preferably engaging in the slot, inserted into the cylinder screw or a pin. It is particularly advantageous if the torsion shear is inserted into the slot and the diameter of the screw fully fills the width of the slot. In this way, a twisting of the fire ring, as well as an accidental falling out can be prevented. 50
In weiterer Ausführung der Erfindung kann vorgesehen sein, dass der Feuerring zumindest eine Durchtrittsöffnung für einen in den Brennraum mündenden Bauteil aufweist, wobei der Bauteil vorzugsweise eine Einspritzdüse, eine Vorkammerdüse oder eine Zündkerze ist. Einspritzdüsen, Vorkammerdüsen und/oder Zündkerzen können somit durch den Feuerring hindurch in den 55 durch den Feuerring definierten Brennraum hineinragen.In a further embodiment of the invention can be provided that the fire ring has at least one passage opening for an opening into the combustion chamber component, wherein the component is preferably an injection nozzle, a pre-chamber or a spark plug. Injectors, prechamber nozzles and / or spark plugs can thus protrude through the fire ring into the combustion chamber defined by the fire ring.
Claims (8)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT9632004A AT414016B (en) | 2004-06-03 | 2004-06-03 | Internal combustion engine has a flow path which terminates in an outlet opening in the region of the wall of a piston |
| US10/563,823 US7428889B2 (en) | 2003-07-08 | 2004-06-24 | Internal combustion engine |
| PCT/AT2004/000220 WO2005003527A2 (en) | 2003-07-08 | 2004-06-24 | Internal combustion engine |
| DE112004001182T DE112004001182D2 (en) | 2003-07-08 | 2004-06-24 | Internal combustion engine |
| US12/073,852 US7739993B2 (en) | 2003-07-08 | 2008-03-11 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT9632004A AT414016B (en) | 2004-06-03 | 2004-06-03 | Internal combustion engine has a flow path which terminates in an outlet opening in the region of the wall of a piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA9632004A ATA9632004A (en) | 2005-11-15 |
| AT414016B true AT414016B (en) | 2006-08-15 |
Family
ID=35405994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT9632004A AT414016B (en) | 2003-07-08 | 2004-06-03 | Internal combustion engine has a flow path which terminates in an outlet opening in the region of the wall of a piston |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT414016B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840822A (en) * | 2016-05-27 | 2016-08-10 | 杭州中亚机械股份有限公司 | Piston used for filling valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE863870C (en) * | 1944-06-07 | 1953-01-19 | Sulzer Ag | Opposed piston internal combustion engine with cooled liners inserted in their cylinders |
| DE1942007A1 (en) * | 1968-08-22 | 1970-04-09 | Masakuni Koibe | Opposed piston engine |
| DE2704006A1 (en) * | 1977-02-01 | 1978-08-03 | Milan Kubicek | Engine with two opposing pistons in cylinders - has gear mechanism so that inward stroke lengths of pistons are different |
| EP1061294A2 (en) * | 1999-06-04 | 2000-12-20 | Wärtsilä NSD OY AB | Advanced antipolishing ring arrangement |
-
2004
- 2004-06-03 AT AT9632004A patent/AT414016B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE863870C (en) * | 1944-06-07 | 1953-01-19 | Sulzer Ag | Opposed piston internal combustion engine with cooled liners inserted in their cylinders |
| DE1942007A1 (en) * | 1968-08-22 | 1970-04-09 | Masakuni Koibe | Opposed piston engine |
| DE2704006A1 (en) * | 1977-02-01 | 1978-08-03 | Milan Kubicek | Engine with two opposing pistons in cylinders - has gear mechanism so that inward stroke lengths of pistons are different |
| EP1061294A2 (en) * | 1999-06-04 | 2000-12-20 | Wärtsilä NSD OY AB | Advanced antipolishing ring arrangement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840822A (en) * | 2016-05-27 | 2016-08-10 | 杭州中亚机械股份有限公司 | Piston used for filling valve |
| CN105840822B (en) * | 2016-05-27 | 2017-08-15 | 杭州中亚机械股份有限公司 | A kind of filling valve piston |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA9632004A (en) | 2005-11-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| MM01 | Lapse because of not paying annual fees |
Effective date: 20131115 |