DE1401994A1 - Rotary piston internal combustion engine in trochoid design - Google Patents
Rotary piston internal combustion engine in trochoid designInfo
- Publication number
- DE1401994A1 DE1401994A1 DE19621401994 DE1401994A DE1401994A1 DE 1401994 A1 DE1401994 A1 DE 1401994A1 DE 19621401994 DE19621401994 DE 19621401994 DE 1401994 A DE1401994 A DE 1401994A DE 1401994 A1 DE1401994 A1 DE 1401994A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- internal combustion
- combustion engine
- area
- flank
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 10
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000004886 process control Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 8
- SGPGESCZOCHFCL-UHFFFAOYSA-N Tilisolol hydrochloride Chemical compound [Cl-].C1=CC=C2C(=O)N(C)C=C(OCC(O)C[NH2+]C(C)(C)C)C2=C1 SGPGESCZOCHFCL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
Classifications
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- 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
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/14—Shapes or constructions of combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
-
- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
-
- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B2053/005—Wankel engines
-
- 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
- F02B2730/00—Internal-combustion engines with pistons rotating or oscillating with relation to the housing
- F02B2730/01—Internal-combustion engines with pistons rotating or oscillating with relation to the housing with one or more pistons in the form of a disk or rotor rotating with relation to the housing; with annular working chamber
- F02B2730/018—Internal-combustion engines with pistons rotating or oscillating with relation to the housing with one or more pistons in the form of a disk or rotor rotating with relation to the housing; with annular working chamber with piston rotating around an axis passing through the gravity centre, this piston or the housing rotating at the same time around an axis parallel to the first axis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
Rotationskolben-Brennkraftmaschine in TrochoidenbauartRotary piston internal combustion engine in trochoid design
Die Erfindung bezieht sich auf eine Rotationskolben-Brennkraftmaschine in Trochoidenbauart, bei welcher innerhalb eines Gehäuses mit Seitenteilen und mit einem Umschließungskörper mit einer mehrbogigen inneren Mantelfläche, die zwei aehsnahe Zonen aufweist, ein mehreckiger, mit Kolbenmulden an seinen Flanken versehener Kolben auf dem Exzenter einer Exzenterwelle gelagert ist, der bei seiner Bewegung relativ zum Umschließungskörper und zur Exzenterwelle mit seinen Ecken an der inneren Mantelfläche entlanggleitet und dabei im Bereich einer achsnahen Zone angeordnete Gaswechselkanäle steuert.The invention relates to a rotary piston internal combustion engine in trochoid design, in which within a housing with side parts and with an enclosing body with a multi-arched inner lateral surface, which has two near-axis zones, a polygonal one with piston depressions on its Flanked piston is mounted on the eccentric of an eccentric shaft, which moves relative to the surrounding body during its movement and to the eccentric shaft slides with its corners along the inner lateral surface and thereby in the area of a near-axis Zone arranged gas exchange channels controls.
Bei Brennkraftmaschinen dieser Art, die als Maschinen mit fremdzündung betrieben werden und bei denen im Bereich einer achsnahen Zone eine Zündkerze am Umsehließungskörper angeordnet ist, ragen die Elektroden der Zündkerze in eine Bohrung, die an der inneren Mantelfläche des Umschließungskörpers mündet. Es wurde nun beobachtet, daß Brenngase, die sich in dieser Bohrung befinden, ,nicht nach der Kolbenmulde hin entweichen können, wenn der Kolben, sich in einer Stellung befindet, in welcher er mit seiner Flanke die Zündkerzenbohrung abdeckt. Die heißen Grase blasen dann, wenn die folgende Radialdichtung über die Zündkerzenbohrung hinweggelaufen ist, in die nachfolgende Arbeitskammer hinein. Dadurch tritt dort eine örtliche YOrverbrennung der Itischgase ein. Außerdem wird die Radialdichtung thermisch hoch belastet. Um dies mit einfachen Mitteln zu vermeiden, sieht die Erfindung vor, an jeder Kolbenflanke eine von der Kolbenmulde ausgehende und sieh bis in den Bereich der nachlaufenden Kolbenecke erstreckendeIn internal combustion engines of this type, which are operated as machines with external ignition and in which a spark plug is arranged on the surrounding body in the area of a zone close to the axis, the electrodes of the spark plug protrude into a bore that opens on the inner surface of the surrounding body. It has now been observed that combustion gases that are located in this bore cannot escape to the piston bowl when the piston is in a position in which it covers the spark plug bore with its flank. The hot grass then blows into the following working chamber when the following radial seal has run over the spark plug bore. As a result, local Yorburning of the Itisch gases occurs there. In addition, the radial seal is subject to high thermal loads. To avoid this in simple terms, the invention provides for an outgoing of the piston bowl and look into the area of the trailing piston area extending at each piston edge
-2 --2 -
809809/0146809809/0146
- 2 - Daim 5968/4 - 2 - Daim 5968/4
Hute anzuordnen. Mittels einer solchen -Hute können die in der Zündkerzenbohrung sich befindenden heißen Grase während der Expansion nach der Kolbenmulde hin entweichen. Ss erfolgt keine wesentliche Überströmung in die nachfolgende Arbeitskammer, die sich auf der Irischgasseite nachteilig auswirken könnte. Die Radialdichtung bleibt damit kühler, so daß das Spiel verkleinert werden kann. Die Möglichkeit eines Yerkokens und eines Festklemmens wird vermindert.To arrange hats. With such a hat, those in the Hot gases located in the spark plug bore escape during the expansion towards the piston bowl. Ss does not occur substantial overflow into the subsequent working chamber, which could have a detrimental effect on the Irish Gas side. The radial seal remains cooler so that the game is reduced can be. The possibility of yerkokin and sticking is reduced.
In weiterer Ausgestaltung des Erfindungsgedankens kann an jeder Kolbenflanke außerdem noch eine von der Kolbenmulde ausgehende und sich bis in den Bereich der vorlaufenden Kolbenecke erstrecken» de Wüte vorgesehen sein. Biese Anordnung erweist sich als besonders vorteilhaft, wenn in den Kolbenflanken nicht langgestreckte, sondern kompakte Kolbenmulden vorgesehen sind, weil sich zwischen der Kolbenflanke und der inneren Mantelfläche des Umschließungskörpers bei bestimmten Stellungen des Kolbens von der Kolbenmulde abgetrennte Säume ergeben. In dem in Umlauf richtung des Kolbens vorderen Saum findet nach der Zündung Expansion statt,, während der nacheilende Raum weiter komprimiert. Der Druck der Gase in diesen beiden Räumen will sich ausgleichen und findet dazu lediglich das Spiel zwischen der Kolbenflanke und der inneren Mantelfläche vor. Dadurch entstehen erhebliche Drosselverluste, die durch die beiden erfindungsgemäßen Nuten vermieden werden« Außerdem trägt die Hut zu der nachlaufenden Kolbenecke dazu bei, daß beim plötzlichen Herüberdrücken des Kompressionsrestvolumens zusätzlich eine stärkere Durchwirbelung der Gase in der Kolbenmulde stattfindet. Auch bei Anordnung von Torkammern oder Wirbelkammern bei Dieselmaschinen wirken sieh erfindungsgemäSe Hüten in den Kolbenflanken vorteilhaft aus.In a further refinement of the inventive concept, one can also have one extending from the piston recess on each piston flank and extend into the area of the leading piston corner » de rage be provided. This arrangement proves to be special advantageous if not elongated, but rather compact piston recesses are provided in the piston flanks, because between the piston flank and the inner lateral surface of the enclosing body in certain positions of the piston from the piston bowl severed hems result. In the front edge in the direction of rotation of the piston, expansion takes place after the ignition, during the trailing space is further compressed. The pressure of the gases in these two rooms wants to balance each other out and finds it only the play between the piston flank and the inner one Outer surface in front. This creates considerable throttle losses, which are avoided by the two grooves according to the invention «In addition, the hat contributes to the trailing piston corner, that when the compression residual volume is suddenly pushed over In addition, a stronger turbulence of the gases in the piston bowl takes place. Even with the arrangement of gate chambers or vortex chambers In the case of diesel engines, hats according to the invention are effective advantageous in the piston flanks.
Vorteilhaft können die Hüten in Richtung nach der KoIt»©necke zu einen kontinuierlich abnehmenden Querschnitt aufweisen.Advantageously, the hats can be turned towards the KoIt »© necke have a continuously decreasing cross-section.
In der Zeichnung ist der Segenstand der Erfindung in zwei ' Ausführungebeispielen dargestellt·In the drawing the subject matter of the invention is divided into two ' Execution examples shown
- 3 - Palm 5968/4 - 3 - Palm 5968/4
Es zeigernShow it
Fig· 1 eine Rotationskolben-Brennkraftmaschine mit langgestreckten Kolbenmulden in den. Kolbenflanken,Fig. 1 shows a rotary piston internal combustion engine elongated piston bowls in the. Piston flanks,
Fig. 2 eine Draufsicht auf eine Kolbenflanke in größerem Maßstab,2 shows a plan view of a piston flank on a larger scale,
Fig. 5 eine Rotationskolben-Brennkraftmaschine mit kompakten Kolbenmulden in den Kolbenflanken und5 shows a rotary piston internal combustion engine with compact piston recesses in the piston flanks and
Fig. 4 eine Draufsicht auf eine Kolbenflanke in größerem Maßstab.4 shows a plan view of a piston flank on a larger scale.
Fig. 1 zeigt eine Rotationskolben-Brennkraftmaschine, bei welcher innerhalb des Umschließungskörpers 1 mit der zweibogigen inneren Mantelfläche 2 der dreieckige Kolben 3 in Pfeilrichtung 4 umlaufend angeordnet ist. Im Bereich der achsnahen Zone 5 sind am Umschließungskörper 1 der Einlaßkanal 6 und der Auslaßkanal 7 und im Bereich der gegenüberliegenden achsnahen Zone 8 ist die Zündkerze 9 angeordnet. Da der Kolben 3 mit den an seinen Ecken vorgesehenen Radialdichtungen 10 an der Mantelfläche 2 entlanggleitet, ragen die Elektroden der Zündkerze 9 nicht aus der Mantelfläche 2 hervor, sondern liegen zurückgesetzt in einer mehr oder weniger großen Bohrung 11. An jeder Kolbenflanke 12 befindet sich eine langgestreckte Kolbenmulde 13. Damit nun die in der Bohrung 11 sich befindenden heißen Grase nicht durch die Kolbenflanke 12 abgeschlossen werden, wenn der Kolben 3 die dargestellte Lage einnimmt, ist in den Kolbenflanken eine Nute angeordnet, welche den jeweils nachlaufenden Flankenteil des Kolbens mit der Kolbenmulde 13 direkt verbindet. Die Gase in der Bohrung 11 können sich dann durch die Nute 14 nach der Kolben- ' mulde hin entspannen.Fig. 1 shows a rotary piston internal combustion engine, in which within the enclosing body 1 with the two-arched inner Circumferential surface 2 of the triangular piston 3 in the direction of arrow 4 is arranged. In the area of the near-axis zone 5, the inlet channel 6 and the outlet channel 7 and in the enclosing body 1 are located The spark plug 9 is arranged in the opposite, near-axis zone 8. Since the piston 3 with the at its corners provided radial seals 10 slides along the lateral surface 2, the electrodes of the spark plug 9 do not protrude from the jacket surface 2, but are set back in a more or less large bore 11. On each piston flank 12 there is an elongated piston recess 13. So now the hot grass located in the bore 11 does not pass through the piston flank 12 are closed when the piston 3 assumes the position shown, there is a groove in the piston flanks arranged, which connects the trailing flank part of the piston with the piston recess 13 directly. The gases in the Bore 11 can then relax through the groove 14 towards the piston 'recess.
Wie näher aus Fig. 2 hervorgeht, kann die Breite der Nute 14 von der Kolbenmulde 13 an nach der Kolbenecke zu kontinuierlich abnehmen· Auch die Tiefe der Nute nimmt nach der Kolbenecke zu laufend ab.As can be seen in more detail from Fig. 2, the width of the groove 14 of the piston bowl 13 to continuously after the piston corner decrease · The depth of the groove also increases after the piston corner ongoing.
— 4 809809/0U6- 4 809809 / 0U6
- 4 - !Daim 5968/4 \ - 4 - ! Daim 5968/4 \
Sofern die Zündkerze 9 nicht in einer mittleren Querebene des Umsehließungskörpers 1 angeordnet ist, sondern versetzt dazu, müssen die Nuten 14 in den Kolbenflanken 12 ebenfalls versetzt angeordnet werden.If the spark plug 9 is not in a central transverse plane of the Enclosure body 1 is arranged, but offset thereto, the grooves 14 in the piston flanks 12 must also be offset to be ordered.
Ist der Kolben 3 nach den Fig· 3 und 4 mit einer kompakten Kolbenmulde 13' in jeder Kolbenflanke 12 ausgestattet, empfiehlt es sich, zu der Hute 14 nach der nacheilenden Kolbenecke hin noch eine Hute 14' nach der voreilenden Kolbenecke hin anzuordnen. Dadurch wird ein Absperren von Räumen, das durch ein nahes Heranlaufen der Kolbenflanke an die innere Mantelfläche auftritt, vermieden, so daß die Gase in diesen Räumen sich nach der Kolbenmulde 131 hin entspannen können und sie zu einer Wirbelbildung in der Kolbenmulde beitragen.If the piston 3 according to FIGS. 3 and 4 is equipped with a compact piston recess 13 'in each piston flank 12, it is advisable to arrange a hat 14' after the leading piston corner in addition to the hat 14 after the trailing piston corner. This avoids the blocking of spaces caused by the piston flank approaching the inner circumferential surface, so that the gases in these spaces can relax after the piston bowl 13 1 and they contribute to the formation of eddies in the piston bowl.
80 9 80S/0U680 9 80S / 0U6
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0039452 | 1962-07-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1401994A1 true DE1401994A1 (en) | 1968-11-21 |
Family
ID=7044749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19621401994 Withdrawn DE1401994A1 (en) | 1962-07-25 | 1962-07-25 | Rotary piston internal combustion engine in trochoid design |
Country Status (2)
Country | Link |
---|---|
US (1) | US3297005A (en) |
DE (1) | DE1401994A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013017232A3 (en) * | 2011-08-04 | 2013-10-10 | Avl List Gmbh | Shaping the piston recess of a rotary piston engine |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3487815A (en) * | 1968-02-15 | 1970-01-06 | Gen Motors Corp | Rotary engine with means for causing mixture turbulence |
US3610209A (en) * | 1968-03-06 | 1971-10-05 | Krupp Gmbh | Rotary piston internal combustion engine |
GB1269042A (en) * | 1968-03-29 | 1972-03-29 | Rolls Royce | Improvements in or relating to rotary piston internal combustion engines |
DE1927840A1 (en) * | 1968-06-06 | 1969-12-11 | Toyo Kogyo Company Ltd | Rotary piston internal combustion engine |
FR2038520A5 (en) * | 1969-03-18 | 1971-01-08 | Panhard & Levassor | |
US3872838A (en) * | 1970-11-30 | 1975-03-25 | Volkswagenwerk Ag | Combustion engine having a rotary type piston arrangement |
US3739753A (en) * | 1971-04-15 | 1973-06-19 | Gen Motors Corp | Rotary combustion engine ignition |
JPS5125603Y1 (en) * | 1973-02-19 | 1976-06-30 | ||
JPS53137316A (en) * | 1977-05-06 | 1978-11-30 | Tadakatsu Ishimi | Rotary engine |
WO2005071230A2 (en) | 2004-01-12 | 2005-08-04 | Liquidpiston, Inc. | Haybrid cycle combustion engine and methods |
CA2657959A1 (en) * | 2006-08-02 | 2008-02-07 | Liquidpiston, Inc. | Hybrid cycle rotary engine |
US20080141972A1 (en) * | 2006-12-15 | 2008-06-19 | United Technologies Corporation | Rotors having flow-modifying members for use in rotary engines |
WO2008134550A1 (en) * | 2007-04-27 | 2008-11-06 | Power Source Technologies, Inc. | Rotary engine combustion chamber |
EP2691607B1 (en) | 2011-03-29 | 2016-07-20 | LiquidPiston, Inc. | Cycloid rotor engine |
US9027345B2 (en) * | 2011-07-28 | 2015-05-12 | Pratt & Whitney Canada Corp. | Compound engine system with rotary engine |
SG10201708784YA (en) * | 2013-01-25 | 2017-12-28 | Liquidpiston Inc | Air-cooled rotary engine |
US10082029B2 (en) | 2016-07-08 | 2018-09-25 | Pratt & Whitney Canada Corp. | Internal combustion engine with rotor having offset peripheral surface |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3081753A (en) * | 1960-03-10 | 1963-03-19 | Curtiss Wright Corp | Rotary combustion engines |
US3190269A (en) * | 1961-07-07 | 1965-06-22 | Yanmar Diesel Engine Co | Combustion chambers for rotary engines |
FR1328707A (en) * | 1962-07-11 | 1963-05-31 | Yanmar Diesel Engine Co | Combustion system for rotary type diesel engines |
US3213836A (en) * | 1962-12-10 | 1965-10-26 | Kloeckner Humboldt Deutz Ag | Rotary piston internal combustion engine |
-
1962
- 1962-07-25 DE DE19621401994 patent/DE1401994A1/en not_active Withdrawn
-
1963
- 1963-07-17 US US295632A patent/US3297005A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013017232A3 (en) * | 2011-08-04 | 2013-10-10 | Avl List Gmbh | Shaping the piston recess of a rotary piston engine |
Also Published As
Publication number | Publication date |
---|---|
US3297005A (en) | 1967-01-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |