CH671433A5 - - Google Patents
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- Publication number
- CH671433A5 CH671433A5 CH3302/86A CH330286A CH671433A5 CH 671433 A5 CH671433 A5 CH 671433A5 CH 3302/86 A CH3302/86 A CH 3302/86A CH 330286 A CH330286 A CH 330286A CH 671433 A5 CH671433 A5 CH 671433A5
- Authority
- CH
- Switzerland
- Prior art keywords
- internal combustion
- combustion engine
- rotary piston
- engine according
- intake
- Prior art date
Links
Classifications
-
- 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
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
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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
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/04—Engines with prolonged expansion in main 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
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/14—Shapes or constructions of combustion chambers
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
A rotor (2) turns in a casing (1), of which the internal peripheral surface comprises several inlet and combustion chambers (4, 5) which are swept, during rotation of the rotor, by radially mobile slides (7, 8). Since the combustion chambers are considerably larger than the inlet chambers, the combustion gases can expand more than in a piston engine, thereby increasing the output of the engine not equipped with pistons.
Description
BESCHREIBUNG
Bei den n bekannten Kolbenmotoren und auch beim Wan- kelmotor sind Ansaugraum und Verbrennungsraum stets gleich gross. Betrachtet man die Verhältnisse beim Kolbenmotor, so sieht man, dass am Ende eines Arbeitstaktes, wenn der Kolben sich im unteren Totpunkt befindet, sich immer noch relativ heisse Verbrennungsgase unter hohem Druck im Zylinder befinden. Es ist klar, dass man weitere Energie gewinnen könnte, wenn es möglich wäre, den Kolben weiter nach unten zu führen und das Gas weiter expandieren zu lassen, n. a. W. wenn man den Verbrennungsraum vergrössern könnte.
Die Erfindung stellt sich die Aufgabe, diese beträchtliche Restenergie weiter auszunützen, also einen Motor zu schaffen, bei dem Ansaugraum und Verbrennungsraum voneinander getrennt sind und letzterer wesentlich grösser als der erstere ist.
Die X esentlichen Merkmale der Erfindung ergeben sich aus dem Patentanspruch 1.
Ein j 5usführungsbeispiel des erfindungegemässen Motors wird anhand der Zeichnung näher erläutert, in dieser zeigen:
Fig. ¯ einen Schnitt durch den Motor, senkrecht zur Drehkolbenachse,
Fig. 2 einen Schnitt längs der Linie II-II von Fig. 1.
Im Gehäuse 1 ist ein auf der Welle 3 sitzender Drehkolben 2 untergebracht, wobei das Spiel zwischen diesen beiden Teilen möglichst gering gehalten ist. Auf der Innenseite des Gehäuses 1 sind mehrere Ansaugräume 4 und Verbrennungsräume 5 ausgespart. Die Verbrennungsräume 5 sind vorzugsweise mehrfach grösser als die Ansaugräume 4. In Drehrichtung ist hinter jedem Ansaugraum 4 eine Zündkerze 6 angebracht. Zum Abgrenzen der im Betrieb periodisch zu variierenden Volumina von Ansaug- und Verbrennungsräumen dienen die Schieber 7 und 8. Die Schieber sind in radialen Nuten des Drehkolbens beweglich und sind mit seitlichen Zapfen 11 versehen, die in Nutenbahnen 9 bzw. 10 der Gehäuseseitenwände geführt sind.
Die Nutenbahnen verlaufen konzentrisch zur Drehkolbenachse, und zwar so, dass der Verlauf der Bahn 9 dem peripheren Umrissverlauf der Ansaugräume entspricht und derjenige der Bahn 10 demjenigen der Verbrennungsräume. Damit wird erreicht, dass die Schieber 7 die Ansaugräume 4 exakt abdichtend überstreichen, wärend die Schieber 8 dasselbe bei den Verbrennungsräumen 5 bewirken. Zwischen je einem Paar von Schiebern ist am Drehkolben eine Abdichtlippe 14 vorgesehen, welche eine gasdichte Trennung zwischen Ansaugund Verbrennungsräumen gewährleistet.
Zwischen den Schiebern jedes Paares ist am Drehkolbenumfang eine Ausnehmung 13 vorgesehen, die den Kompressionsraum darstellt, dessen Grösse so bemessen ist, dass sich ein vorgegebenes Kompressionsverhältnis ergibt. Nachfolgend wird die Arbeitsweise des Motors näher erläutert.
Durch die Ansaugöffnung 12 wird das Gemisch im Fall eines Vergasermotors, bzw. die Luft eines Einspritzmotors, durch die Bewegung des Schiebers 7 angesaugt und in den Kompressionsraum 13 gepresst, anschliessend durch die Kerze 6 gezündet worauf die Verbrennung im Raum 5 erfolgt. Der Verbrennungsraum wird durch den Schieber 8 abgedichtet, auf den durch expandierende Gase die tangential gerichtete Antriebskraft ausgeübt wird. Da dieser Raum 5 wesentlich grösser als der Ansaugraum 4 ist, kann die bei der Expansion frei werdende Energie wesentlich weiter als bei normalen Kolbemotoren ausgenützt werden. Eine Rückwirkung des hohen Gasdrucks im Verbrennungsraum auf den vorangehenden Ansaugraum wird durch die Abdichtlippe 14 verhindert.
Im gezeigten Beispiel sind 12 Schieberpaare 7, 8 in Winkelabständen von 30O vorhanden, so dass bei einer Umdrehung des Drehkolbens in jedem Verbrennungsraum 12 Arbeitstakte stattfinden, insgesamt bei vier Ansaug- und Verbrennungsräumen 48 Arbeitstakte, was einen sehr ruhigen und vibrationsfreien Lauf des Motors ergibt.
Es ist möglich mehrere der beschriebenen Motoreinheiten auf einer gemeinsamen Welle zu kombinieren. In einem solchen Fall wird man die Ansaug- und Verbrennungeräume der Motoreinheiten winkelversetzt zueinander anordnen, wodurch sich eine weitere Erhöhung der Laufruhe des Motors erzielen lässt.
Es ist für den Fachmann klar, dass sich der Motor auch als Dieselmotor ausbilden lässt.
DESCRIPTION
In the known piston engines and also in the rotary engine, the intake space and combustion chamber are always the same size. If you look at the conditions of the piston engine, you can see that at the end of a work cycle, when the piston is at bottom dead center, there are still relatively hot combustion gases under high pressure in the cylinder. It is clear that more energy could be gained if it were possible to lower the piston and allow the gas to expand further, n.a. W. if you could enlarge the combustion chamber.
The object of the invention is to further utilize this considerable residual energy, ie to create an engine in which the intake space and the combustion space are separated from one another and the latter is substantially larger than the former.
The essential features of the invention result from patent claim 1.
A sample embodiment of the motor according to the invention is explained in more detail with reference to the drawing, in which:
Fig. ¯ a section through the motor, perpendicular to the rotary lobe axis,
2 shows a section along the line II-II of FIG. 1st
In the housing 1, a rotary piston 2 seated on the shaft 3 is accommodated, the play between these two parts being kept as small as possible. On the inside of the housing 1, several suction chambers 4 and combustion chambers 5 are left out. The combustion chambers 5 are preferably several times larger than the intake chambers 4. In the direction of rotation, a spark plug 6 is fitted behind each intake chamber 4. The slides 7 and 8 serve to delimit the volumes of intake and combustion chambers which have to be varied periodically during operation. The slides are movable in radial grooves of the rotary piston and are provided with lateral pins 11 which are guided in groove tracks 9 and 10 of the housing side walls.
The groove tracks run concentrically to the rotary piston axis, in such a way that the course of the track 9 corresponds to the peripheral contour course of the intake spaces and that of the track 10 corresponds to that of the combustion spaces. It is thereby achieved that the slides 7 pass over the suction spaces 4 in an exactly sealing manner, while the slides 8 do the same for the combustion spaces 5. Between each pair of sliders, a sealing lip 14 is provided on the rotary piston, which ensures a gas-tight separation between the intake and combustion chambers.
Between the slides of each pair, a recess 13 is provided on the circumference of the rotary piston, which represents the compression space, the size of which is dimensioned such that a predetermined compression ratio results. The operation of the engine is explained in more detail below.
In the case of a carburetor engine or the air of an injection engine, the mixture is sucked in through the movement of the slide 7 and pressed into the compression space 13, then ignited by the candle 6, whereupon the combustion takes place in the space 5. The combustion chamber is sealed by the slide 8, on which the tangentially directed driving force is exerted by expanding gases. Since this space 5 is considerably larger than the suction space 4, the energy released during the expansion can be used much further than in normal piston engines. A reaction of the high gas pressure in the combustion chamber to the preceding intake chamber is prevented by the sealing lip 14.
In the example shown, there are 12 pairs of sliders 7, 8 at angular intervals of 30 °, so that 12 working cycles take place in each combustion chamber with one revolution of the rotary piston, 48 working cycles in total for four intake and combustion chambers, which results in very smooth and vibration-free running of the engine.
It is possible to combine several of the motor units described on a common shaft. In such a case, the intake and combustion chambers of the engine units will be arranged at an angular offset from one another, whereby a further increase in the smoothness of the engine can be achieved.
It is clear to the person skilled in the art that the engine can also be designed as a diesel engine.
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3302/86A CH671433A5 (en) | 1986-08-20 | 1986-08-20 | |
PCT/CH1987/000105 WO1988001336A1 (en) | 1986-08-20 | 1987-08-19 | Internal combustion engine without pistons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3302/86A CH671433A5 (en) | 1986-08-20 | 1986-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH671433A5 true CH671433A5 (en) | 1989-08-31 |
Family
ID=4253049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH3302/86A CH671433A5 (en) | 1986-08-20 | 1986-08-20 |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH671433A5 (en) |
WO (1) | WO1988001336A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1013927A3 (en) * | 2001-01-19 | 2002-12-03 | Aic | Internal combustion engine with single rotor operates on Wankel principle, but has even number of rotor arms, each of which bounds one combustion chamber |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2258013B (en) * | 1991-07-18 | 1994-12-14 | James Macmahon | Rotary piston internal combustion engine |
ES2136550B1 (en) * | 1997-08-01 | 2000-07-01 | Jimenez Ontiveros Solis Jose I | INTERNAL COMBUSTION ENGINE ROTARY OPTIMIZED THERMODYNAMIC CYCLE. |
JP2014504691A (en) * | 2010-12-31 | 2014-02-24 | ロドリゲズ,ヴィクトル ガルシア | Rotary heat engine |
US10202894B2 (en) * | 2012-03-20 | 2019-02-12 | Mair's—Drehschiebenmotor, Inc. | Internal combustion rotary engine |
IT201700094241A1 (en) | 2017-08-17 | 2019-02-17 | Angelo Bracalente | ROTARY ENDOTHERMAL ENGINE. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2118253A (en) * | 1933-12-05 | 1938-05-24 | Dallas J Larsen | Rotary motor |
FR1384755A (en) * | 1963-11-26 | 1965-01-08 | Rotary internal combustion engine | |
DE2316529A1 (en) * | 1973-04-03 | 1974-10-24 | Alfons Lugauer | POWER MACHINE, E.G. COMBUSTION OR HYDRAULIC MOTOR OR PUMP |
US3865085A (en) * | 1973-06-08 | 1975-02-11 | Joseph Stenberg | Rotary engine |
-
1986
- 1986-08-20 CH CH3302/86A patent/CH671433A5/de not_active IP Right Cessation
-
1987
- 1987-08-19 WO PCT/CH1987/000105 patent/WO1988001336A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1013927A3 (en) * | 2001-01-19 | 2002-12-03 | Aic | Internal combustion engine with single rotor operates on Wankel principle, but has even number of rotor arms, each of which bounds one combustion chamber |
Also Published As
Publication number | Publication date |
---|---|
WO1988001336A1 (en) | 1988-02-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |