EP1272738B1 - Rotary piston engine - Google Patents

Rotary piston engine Download PDF

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Publication number
EP1272738B1
EP1272738B1 EP01911339A EP01911339A EP1272738B1 EP 1272738 B1 EP1272738 B1 EP 1272738B1 EP 01911339 A EP01911339 A EP 01911339A EP 01911339 A EP01911339 A EP 01911339A EP 1272738 B1 EP1272738 B1 EP 1272738B1
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EP
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Prior art keywords
rotary piston
tooth
pistons
rotary
piston engine
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EP01911339A
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German (de)
French (fr)
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EP1272738A1 (en
Inventor
Hubert Tomczyk
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DIRO Konstruktions GmbH and Co KG
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DIRO Konstruktions GmbH and Co KG
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    • 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
    • F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
    • F01C3/02—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees
    • F01C3/025—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

Definitions

  • the invention relates to a rotary piston engine with at least two each formed as a gear piston, the right-axis in a housing that seals them on both sides and on their circumference are rotatably mounted and at one point in sliding, mutually sealing tooth mesh with each other.
  • DE 33 17 089 A1 DE 33 17 330 C2, DE 27 31 534, DE 33 21 461 C2, DE-OS 2 104 595, DE 26 55 649 A1, DE-OS 2 034 300, DE-PS 260 704, EP O 091 975 A1 as well as AT-PS 227 054 and GB-PS 17,535.
  • WO 91/02145 A describes such a rotary piston engine according to the preamble of claim 1.
  • the disadvantages are incomplete fuel combustion and harmful emissions. To extend the mixture preparation and combustion of available time often takes place Mixing the fuel with air in a carburetor, well ahead of it Combustion chamber, or - in the case of fuel injection - in the intake duct.
  • the invention is therefore based on the object of a rotary piston engine to develop, which has the advantages of a miniature motor, so one permits the most complete possible fuel combustion and emissions harmful emissions reduced.
  • the mixture preparation is thus temporally and spatially separated from the processes previously common in internal combustion engines by a "processing cycle" is created.
  • a "processing cycle” is created with a Arrangement of successively working combustion chambers in one Rotary pistons.
  • the compressed medium is also in a rotary piston provided combustion chamber pressed, the following for the The "processing cycle” mentioned above remains closed.
  • the necessary pressure for the subsequent working stroke comes from the in the rotary piston leading combustion chamber, in which the entire The preparation process and the combustion have just been completed.
  • the combustion chambers provided in the rotary piston arrive successively via channels formed in the motor housing Working volumes in connection formed by the interdental spaces are.
  • any fuels especially hydrogen or alcohol, or Fuel mixtures such as Naphtha with water.
  • Fuel mixtures such as Naphtha with water.
  • the through holes forming the combustion chambers with Catalysts or inserts equipped for flameless combustion are.
  • hydrogen water injection can be used be worked while settling on a naphtha / water mixture Nickel insert is suitable.
  • the rotary piston engine according to the invention is not only suitable as Airplane, ship or car engine but also for electricity generators.
  • the Intake opening the opposite exhaust opening over a partial angular width covered. It is also advantageous if the Intake opening over the angular width of more than one Interdental space extends.
  • Figure 1 shows a schematic representation with the omission of a Housing cover the rotating parts of a rotary piston engine with internal combustion.
  • the output of the motor is designed as an internal gear 1 Rotating piston formed, which also has an external toothing 2 for Rotation of one downstream of the engine, in the drawing Gear not shown.
  • the internal gear 1 is in one only schematically indicated housing part 3 rotatably mounted about an axis 4. In this housing part 3 incisions 5 are provided, each with a an external toothing 6 provided rotary piston 7 is used, the has a smaller diameter than the internal gear 1, all Rotary pistons with the internal gear 1 are each in meshing 8 and with their axes of rotation 9 in the approximately through the housing part shown 3 formed diameter plane of symmetry of the internal gear 1. Each of these axes of rotation 9 is thus perpendicular to the axis 4 of the Internal gear 1.
  • the inner teeth 10 of the internal gear 1 and the outer teeth 11 of the Rotary pistons 7 are each set at 45 °, show slightly helical flanks and form each Single pistons, the rotation of the rotary pistons 1, 7 in the Interdental spaces 12 of the respectively assigned rotary piston slide immerse, which exactly the shape of the inner and outer teeth 10, 11th have the corresponding inner contour and preparation or Form compression chambers.
  • the tooth flanks are over their respective radial height straight, but somewhat helical in the axial direction twisted trained.
  • Each tooth 10, 11 is provided in the rotary piston 1, 7, one Combustion chamber forming through hole 13 associated with the the opposite rotary piston circular surfaces 1a, 7a opens out and here from opposite one another, a rotary piston 1, 7 sandwiched between enclosing housing walls 14, 15 or 16, 17 sealing over a certain angle of rotation range is kept closed (see e.g. Figure 2).
  • a rotary piston 1, 7 sandwiched between enclosing housing walls 14, 15 or 16, 17 sealing over a certain angle of rotation range is kept closed (see e.g. Figure 2).
  • only with regard to the course of the through hole 13 modified embodiment connects the inclined fürgangsborhung 13 a tooth space 12 with each second subsequent interdental space.
  • each tooth engagement 8 is in the housing walls 14, 16 for the in the rotary pistons 1, 7 shown in Figures 2 to 9 each have a first Connection channel 18 is provided, which rotates past it Interdental space 12 with a through hole 13 fluidly connects and this with compressed air or compressed fuel mixture fills.
  • a second connecting channel 19 is provided, which the past him rotating through bore 13 with one of the following Interdental spaces 12 fluidly connects, into which the Filling of the through hole 13 expands.
  • an exhaust opening 20 is provided, which in the housing walls 15, 17 each with a (in the drawing not shown) connected air or fuel mixture supply Suction port 21 is opposite so that the exhaust port 20 and assigned suction opening 21 one after the other with the past rotating tooth space 12 fluidically connected become.
  • the suction opening 21 can be the opposite one Cover exhaust opening 20 over only a partial angular range a.
  • the Intake opening 21 extends over the angular width b two successive interdental spaces 12.
  • Figure 2 for the interdental space located in front of the tooth engagement 8 Compression 3/4 and for those just emerging from the tooth mesh 8 Interdental space indicates 1/4 work.
  • Figure 4 shows for the lower one Interdental space the end of compaction and for the upper one Interdental space 2/4 work.
  • Figure 6 results for the lower subsequent tooth space a compression of 1/4 and for the upper interdental space a work of 3/4; in the case of FIG. 8
  • the following cycle shown takes place in the lower interdental space Compression of 2/4, while for the upper, completely from the Tooth engagement area emerged between the teeth the end of work is specified.
  • the workflow is therefore carried out in a modified 5-stroke process 1st bar Exhaust 2nd bar Intake (exhaust and intake - as with a two-stroke engine - can be done dynamically in one process) 3rd bar compression 4 tact Evaporation (mixture preparation and combustion initiation) 5th bar Job.
  • Compressed air or a compressed fuel mixture according to the invention valve-less via a "window” (first connecting channel 18) pressed into a rotating combustion chamber (through hole 13), where the processed fuel mixture burned and then valveless again via a “window” (second connecting channel 19) rotating working volume (interdental space 12) is shifted. there can initiate the combustion without or with the help of ignition or Glow plugs are made.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Toys (AREA)
  • Rotary Pumps (AREA)

Abstract

A rotary piston engine having at least two rotary pistons formed as gearwheels mounted in a rotatable fashion on mutually perpendicular axes in a housing that provides a closed seal for the pistons on both faces as well as around their circumferences, is at one point in a sliding, mutually sealing engagement of gear, teeth with each other. The two rotary pistons have different diameters and the teeth forming the individual pistons make contact at an angle of 45° in each case and have slightly helical flanks. The tooth spaces forming a carburetion chamber, a compression chamber and a working chamber have an inside contour precisely matching the shape of the teeth. Each of the internal and external teeth are assigned through-flow bores where each through-flow bores opens into an outlet on a circular surface area of the rotary pistons which lie opposite to each other.

Description

Die Erfindung betrifft einen Rotationskolbenmotor mit zumindest zwei jeweils als Zahnrad ausgebildeten Rotationskolben, die rechtwinkelachsig in einem sie jeweils beidseitig und auf ihrem Umfang abdichtenden Gehäuse drehbar gelagert sind und an einer Stelle in gleitendem, sich gegenseitig abdichtenden Zahneingriff miteinander stehen.The invention relates to a rotary piston engine with at least two each formed as a gear piston, the right-axis in a housing that seals them on both sides and on their circumference are rotatably mounted and at one point in sliding, mutually sealing tooth mesh with each other.

Zum allgemeinen Stand der Technik kann verwiesen werden auf die DE 33 17 089 A1, DE 33 17 330 C2, DE 27 31 534, DE 33 21 461 C2, DE-OS 2 104 595, DE 26 55 649 A1, DE-OS 2 034 300, DE-PS 260 704, EP O 091 975 A1 sowie die AT-PS 227 054 und die GB-PS 17,535.Regarding the general state of the art, reference can be made to DE 33 17 089 A1, DE 33 17 330 C2, DE 27 31 534, DE 33 21 461 C2, DE-OS 2 104 595, DE 26 55 649 A1, DE-OS 2 034 300, DE-PS 260 704, EP O 091 975 A1 as well as AT-PS 227 054 and GB-PS 17,535.

Insbesondere beschreibt die WO 91/02145 A einen solchen Rotationskolbenmotor nach dem Oberbegriff des Anspruchs 1.In particular, WO 91/02145 A describes such a rotary piston engine according to the preamble of claim 1.

Die meisten dieser vorbekannten Vorschläge gehen aus von zwei ineinandergreifenden Kolbenringen, deren Achsen sich in der Kolbenringmitte schneiden, so.dass beide Kolbenringe den gleichen Mittelpunkt aufweisen, oder aber von zwei Kolbenringen, deren Kolben nur auf der Ringaußenfläche ausgebildet sind. Bei Ausführungsformen, bei denen ein Kolbenring im Innenraum eines zweiten Kolbenringes rotiert, sind zwar für beide Kolbenringe die sphärischen Dichtflächen gleich, jedoch ist die Abdichtung in Drehrichtung in einer von zwei Schnittstellen nicht gewährleistet. Auch bei der zweiten der vorstehend genannten Ausführungsformen ist die Dichtung in Drehrichtung nicht gewährleistet; zusätzlich ungünstig sind überdies die Abmessungen und das Gewicht des Motors.Most of these known proposals are based on two interlocking piston rings, the axes of which are in the center of the piston ring cut so that both piston rings have the same center, or of two piston rings, the pistons of which are only on the outer surface of the ring are trained. In embodiments in which a piston ring in the The interior of a second piston ring rotates for both Piston rings have the same spherical sealing surfaces, but the seal is in Direction of rotation in one of two interfaces not guaranteed. Also at the second of the above embodiments is the seal not guaranteed in the direction of rotation; in addition, the Dimensions and weight of the engine.

Alle vorbekannten Lösungen basieren auf dem üblichen System der Brenngemischvorbereitung mit nachfolgendem Verbrennungsvorgang. Systembedingt nachteilig ist hierbei die kurze Zeit, die für die Vorbereitung des Brennstoffgemisches und für dessen Verbrennung zur Verfügung steht. Zusätzliche Nachteile erbringen die meist erforderlichen Ventilsteuerungen. All previously known solutions are based on the usual system of Mixture preparation with subsequent combustion process. The short time required for the preparation is a disadvantage of the system of the fuel mixture and for its combustion is available. The usually required valve controls have additional disadvantages.

Als Nachteile ergeben sich eine unvollständige Kraftstoffverbrennung und damit schädliche Abgase. Zur Verlängerung der für die Gemischvorbereitung und -verbrennung zur Verfügung stehenden Zeit erfolgt häufig eine Mischung des Kraftstoffes mit Luft in einem Vergaser, also weit vor der Verbrennungskammer, oder aber - bei Kraftstoffinjektion - im Ansaugkanal.The disadvantages are incomplete fuel combustion and harmful emissions. To extend the mixture preparation and combustion of available time often takes place Mixing the fuel with air in a carburetor, well ahead of it Combustion chamber, or - in the case of fuel injection - in the intake duct.

Bei den bisher bekanntgewordenen Lösungen werden jeweils möglichst große Brennräume angestrebt, was jedoch systembedingte Nachteile hervorruft. Die vorliegende Erfindung geht daher von der Erkenntnis aus, dass Kleinstmotoren das beste Leistungsverhältnis aufweisen und bessere Verbrennungsbedingungen ermöglichen.In the case of the solutions that have become known so far, as far as possible aimed at large combustion chambers, but this has system-related disadvantages causes. The present invention is therefore based on the knowledge that that small engines have the best performance ratio and better ones Allow combustion conditions.

Der Erfindung liegt somit die Aufgabe zugrunde, einen Rotationskolbenmotor zu entwickeln, der die Vorteile eines Kleinstmotors aufweist, also eine möglichst vollständige Kraftstoffverbrennung zulässt und den Ausstoß schädlicher Abgase verringert.The invention is therefore based on the object of a rotary piston engine to develop, which has the advantages of a miniature motor, so one permits the most complete possible fuel combustion and emissions harmful emissions reduced.

Ausgehend von dem eingangs beschriebenen Rotationskolbenmotor wird diese Aufgabe erfindungsgemäß durch folgende Merkmale gelöst:

  • a) Die zumindest zwei Rotationskolben weisen unterschiedliche Durchmesser auf;
  • b) die Einzelkolben bildenden Zähne sind jeweils unter 45° angestellt und weisen leicht schraubenflächenförmig gestaltete Flanken auf;
  • c) die Aufbereitungs-, Verdichtungs- und Arbeitskammern bildenden Zahnzwischenräume weisen eine genau der Zahnform entsprechende Innenkontur auf;
  • d) jedem Zahn ist eine im Rotationskolben vorgesehene, eine Verbrennungskammer bildende Durchgangsbohrung zugeordnet, die in den sich gegenüberliegenden Rotationskolben-Kreisflächen ausmündet und hier von sich gegenüberliegenden, einen Rotationskolben sandwichartig zwischen sich einschließenden Gehäusewandungen über einen bestimmten Drehwinkelbereich abdichtend verschlossen gehalten ist;
  • e) vor dem Zahneingriff ist in den genannten Gehäusewandungen für jeden Rotationskolben jeweils ein erster Verbindungskanal vorgesehen, der den an ihm vorbei drehenden Zahnzwischenraum mit einer Durchgangsbohrung strömungstechnisch verbindet und diese mit verdichteter Luft bzw. Kraftstoffgemisch füllt;
  • f) hinter dem Zahneingriff ist in den genannten Gehäusewandungen für jeden Rotationskolben jeweils ein zweiter Verbindungskanal vorgesehen, der die an ihm vorbei drehende Durchgangsbohrung mit einem der nachfolgenden Zahnzwischenräume strömungstechnisch verbindet, in den hinein die Füllung der Durchgangsbohrung expandiert;
  • g) in den genannten Gehäusewandungen sind jeweils vor und hinter dem Zahneingriff eine Auspufföffnung sowie eine dieser gegenüberliegende, mit einer Luft- oder Kraftstoffgemisch-Zufuhr verbundene Ansaugöffnung vorgesehen, die mit dem jeweils vorbei drehenden Zahnzwischenraum nacheinander strömungstechnisch verbunden sind.
    • Starting from the rotary piston engine described in the introduction, this object is achieved according to the invention by the following features:
  • a) The at least two rotary pistons have different diameters;
  • b) the teeth forming the individual pistons are each set at 45 ° and have slightly helical flanks;
  • c) the preparation, compression and working chambers forming interdental spaces have an inner contour that corresponds exactly to the tooth shape;
  • d) each tooth is assigned a through-bore, which is provided in the rotary piston and forms a combustion chamber, which opens out into the opposite rotary piston circular surfaces and is here sealed off from opposite, sandwiched housing walls enclosing a rotary piston over a specific angle of rotation range;
  • e) before the tooth engagement, a first connecting channel is provided for each rotary piston in the housing walls, which fluidically connects the tooth space rotating past it with a through hole and fills it with compressed air or fuel mixture;
  • f) behind the tooth engagement, a second connecting channel is provided in the housing walls for each rotary piston, which fluidically connects the through bore rotating past it with one of the subsequent tooth spaces into which the filling of the through bore expands;
  • g) in the housing walls mentioned, an exhaust opening and an intake opening opposite this, connected to an air or fuel mixture supply, are provided in each case in front of and behind the tooth engagement, which are connected in terms of flow technology in succession to the intermediate tooth space rotating past.

    • Erfindungsgemäß wird somit die Gemischaufbereitung zeitlich und räumlich von den bisher in Verbrennungsmotoren üblichen Abläufen getrennt, indem ein "Aufbereitungstakt" geschaffen wird. Erreicht wird dies mit einer Anordnung von nacheinander arbeitenden Verbrennungskammern in einem Drehkolben. Während eines Verdichtungstaktes in einem Zahnzwischenraum wird das verdichtete Medium in eine ebenfalls im Rotationskolben vorgesehene Verbrennungskammer gepresst, die nachfolgend für den vorstehend genannten "Aufbereitungstakt" geschlossen bleibt. Der notwendige Druck für den nachfolgenden Arbeitshub stammt aber aus der im Rotationskolben vorlaufenden Verbrennungskammer, in der der gesamte Aufbereitungsvorgang sowie die Verbrennung gerade abgeschlossen sind. Die in dem Rotationskolben vorgesehenen Verbrennungskammern gelangen nacheinander über im Motorgehäuse ausgeformte Kanäle mit Arbeitsvolumina in Verbindung, die durch die Zahnzwischenräume gebildet sind.According to the invention, the mixture preparation is thus temporally and spatially separated from the processes previously common in internal combustion engines by a "processing cycle" is created. This is achieved with a Arrangement of successively working combustion chambers in one Rotary pistons. During a compression cycle in an interdental space the compressed medium is also in a rotary piston provided combustion chamber pressed, the following for the The "processing cycle" mentioned above remains closed. The necessary pressure for the subsequent working stroke comes from the in the rotary piston leading combustion chamber, in which the entire The preparation process and the combustion have just been completed. The combustion chambers provided in the rotary piston arrive successively via channels formed in the motor housing Working volumes in connection formed by the interdental spaces are.

    Erfindungsgemäß werden somit viele sehr kleine Verbrennungsräume geschaffen; gleichzeitig erhält man ausreichend Zeit und Raum für die Brenngemischaufbereitung und ihre Verbrennung. Erzielt werden dadurch eine bessere Energieausbeutung und eine Verringerung des Schadstoffausstoßes. In konstruktiver Hinsicht erweist es sich als vorteilhaft, dass der erfindungsgemäße Rotationskolbenmotor ohne Kurbelwelle, Pleuel und Ventile auskommt.According to the invention, many very small combustion chambers become created; at the same time you get enough time and space for that Fuel mixture preparation and its combustion. Be achieved through this better energy exploitation and a reduction in Pollutant emissions. In constructive terms, it turns out to be advantageous that the rotary piston engine according to the invention without Crankshaft, connecting rods and valves get along.

    Für den Betrieb des erfindungsgemäßen Rotationskolbenmotors eignen sich beliebige Kraftstoffe, insbesondere Wasserstoff oder Alkohol, oder Kraftstoffgemische wie z.B. Naphtha mit Wasser. Hierfür ist es vorteilhaft, wenn die die Verbrennungskammern bildenden Durchgangsbohrungen mit Katalysatoren oder Einsätzen für flammenlose Verbrennung ausgestattet sind. Bei Verwendung von Wasserstoff kann mit Wassereinspritzung gearbeitet werden, während sich bei einem Naphtha/Wasser-Gemisch ein Nickeleinsatz eignet.Are suitable for the operation of the rotary piston engine according to the invention any fuels, especially hydrogen or alcohol, or Fuel mixtures such as Naphtha with water. For this it is advantageous if the through holes forming the combustion chambers with Catalysts or inserts equipped for flameless combustion are. When using hydrogen, water injection can be used be worked while settling on a naphtha / water mixture Nickel insert is suitable.

    Der erfindungsgemäße Rotationskolbenmotor eignet sich nicht nur als Flugzeug-, Schiffs- oder Automotor sondern auch für Stromgeneratoren.The rotary piston engine according to the invention is not only suitable as Airplane, ship or car engine but also for electricity generators.

    Zur Bildung der einzelnen Taktfolgen ist es zweckmäßig, wenn die Ansaugöffnung die gegenüberliegende Auspufföffnung über eine Teil-Winkelbreite überdeckt. Außerdem ist es vorteilhaft, wenn sich die Ansaugöffnung über die Winkelbreite von mehr als einem Zahnzwischenraum erstreckt.To form the individual clock sequences, it is useful if the Intake opening the opposite exhaust opening over a partial angular width covered. It is also advantageous if the Intake opening over the angular width of more than one Interdental space extends.

    Zur Verlängerung der Standzeit ist es vorteilhaft, wenn die die Verbrennungskammern bildenden Durchgangsbohrungen und gegebenenfalls auch die zweiten Verbindungskanäle mit einer wärmeisolierenden Schicht ausgekleidet sind. To extend the service life, it is advantageous if the Combustion chambers forming through holes and, if necessary also the second connection channels with a heat-insulating layer are lined.

    Weitere Vorteile der Erfindung werden anhand eines Ausführungsbeispieles näher erläutert.Further advantages of the invention will become apparent from an exemplary embodiment explained in more detail.

    In der Zeichnung ist eine als Beispiel dienende Ausführungsform der Erfindung dargestellt. Es zeigen

    Figur 1
    in schematischer perspektivischer Darstellung ein den Abtrieb eines Rotationskolbenmotors bildendes Innenzahnrad 1, das mehrere jeweils mit einer Außenverzahnung versehene Rotationskolben kleineren Durchmessers umschließt, die alle in einem nur teilweise angedeuteten Motorgehäuse gelagert sind;
    Figur 2
    in Innenansicht und zum Teil im Schnitt den Bereich eines Zahneingriffs zwischen dem Innenzahnrad und einem mit einer Außenverzahnung versehenen Rotationskolben;
    Figur 3
    die Ansicht gemäß Figur 2 in schaubildlicher Darstellung;
    Figuren 4, 6 und 8
    die auf die Darstellung gemäß Figur 2 folgenden drei Takte des Arbeitsablaufes;
    Figuren 5, 7 und 9
    die jeweils schaubildliche Darstellung der Figuren 4, 6 und 8 und
    Figuren 10 und 11
    Darstellungen gemäß den Figuren 6 und 7 mit geändertem Verlauf der Durchgangsbohrungen.
    In the drawing, an exemplary embodiment of the invention is shown. Show it
    Figure 1
    a schematic perspective representation of an output gear of a rotary piston motor forming internal gear 1, which encloses several rotary pistons each with an external toothing of smaller diameter, all of which are mounted in an only partially indicated motor housing;
    Figure 2
    inside view and partly in section the area of a tooth engagement between the internal gear and a rotating piston provided with external teeth;
    Figure 3
    the view of Figure 2 in a graphical representation;
    Figures 4, 6 and 8
    the three bars of the workflow following the representation according to FIG. 2;
    Figures 5, 7 and 9
    the respective graphical representation of Figures 4, 6 and 8 and
    Figures 10 and 11
    Representations according to Figures 6 and 7 with a changed course of the through holes.

    Figur 1 zeigt in schematischer Darstellung unter Weglassung einer Gehäuseabdeckung die drehbeweglichen Teile eines Rotationskolbenmotors mit Innenverbrennung.Figure 1 shows a schematic representation with the omission of a Housing cover the rotating parts of a rotary piston engine with internal combustion.

    Der Abtrieb des Motors wird durch einen als Innenzahnrad 1 ausgebildeten Rotationskolben gebildet, der auch eine Außenverzahnung 2 aufweist zur Drehbeaufschlagung eines dem Motor nachgeschalteten, in der Zeichnung nicht näher dargestellten Getriebes. Das Innenzahnrad 1 ist in einem nur schematisch angedeuteten Gehäuseteil 3 um eine Achse 4 drehbar gelagert. In diesem Gehäuseteil 3 sind Einschnitte 5 vorgesehen, in die jeweils ein mit einer Außenverzahnung 6 versehener Rotationskolben 7 eingesetzt ist, der einen kleineren Durchmesser aufweist als das Innenzahnrad 1, wobei alle Rotationskolben mit dem Innenzahnrad 1 jeweils im Zahneingriff 8 stehen und mit ihren Drehachsen 9 in der etwa durch den dargestellten Gehäuseteil 3 gebildeten Durchmesser-Symmetrieebene des Innenzahnrades 1 liegen. Jede dieser Drehachsen 9 liegt somit rechtwinkelachsig zu der Achse 4 des Innenzahnrades 1.The output of the motor is designed as an internal gear 1 Rotating piston formed, which also has an external toothing 2 for Rotation of one downstream of the engine, in the drawing Gear not shown. The internal gear 1 is in one only schematically indicated housing part 3 rotatably mounted about an axis 4. In this housing part 3 incisions 5 are provided, each with a an external toothing 6 provided rotary piston 7 is used, the has a smaller diameter than the internal gear 1, all Rotary pistons with the internal gear 1 are each in meshing 8 and with their axes of rotation 9 in the approximately through the housing part shown 3 formed diameter plane of symmetry of the internal gear 1. Each of these axes of rotation 9 is thus perpendicular to the axis 4 of the Internal gear 1.

    Die Innenzähne 10 des Innenzahnrades 1 sowie die Außenzähne 11 der Rotationskolben 7 sind jeweils unter 45° angestellt, weisen leicht schraubenflächenförmig gestaltete Flanken auf und bilden jeweils Einzelkolben, die bei Drehung der Rotationskolben 1, 7 in die Zahnzwischenräume 12 des jeweils zugeordneten Rotationskolbens gleitend eintauchen, die eine genau der Form der Innen- bzw. Außenzähne 10, 11 entsprechende Innenkontur aufweisen und Aufbereitungs- bzw. Verdichtungskammern bilden. Die Zahnflanken sind über ihre jeweilige radiale Höhe gerade, in axialer Richtung aber etwas schraubenförmig verdreht ausgebildet.The inner teeth 10 of the internal gear 1 and the outer teeth 11 of the Rotary pistons 7 are each set at 45 °, show slightly helical flanks and form each Single pistons, the rotation of the rotary pistons 1, 7 in the Interdental spaces 12 of the respectively assigned rotary piston slide immerse, which exactly the shape of the inner and outer teeth 10, 11th have the corresponding inner contour and preparation or Form compression chambers. The tooth flanks are over their respective radial height straight, but somewhat helical in the axial direction twisted trained.

    Jedem Zahn 10, 11 ist eine im Rotationskolben 1, 7 vorgesehene, eine Verbrennungskammer bildende Durchgangsbohrung 13 zugeordnet, die in den sich gegenüberliegenden Rotationskolben-Kreisflächen 1a, 7a ausmündet und hier von sich gegenüberliegenden, einen Rotationskolben 1, 7 sandwichartig zwischen sich einschließenden Gehäusewandungen 14, 15 bzw. 16, 17 über einen bestimmten Drehwinkelbereich abdichtend verschlossen gehalten ist (siehe z.B. Figur 2). In der in den Figuren 10 und 11 dargestellten, nur hinsichtlich des Verlaufs der Durchgangsbohrung 13 abgewandelten Ausführungsform verbindet die schräg verlaufende Durchgangsborhung 13 einen Zahnzwischenraum 12 mit dem jeweils zweiten nachfolgenden Zahnzwischenraum.Each tooth 10, 11 is provided in the rotary piston 1, 7, one Combustion chamber forming through hole 13 associated with the the opposite rotary piston circular surfaces 1a, 7a opens out and here from opposite one another, a rotary piston 1, 7 sandwiched between enclosing housing walls 14, 15 or 16, 17 sealing over a certain angle of rotation range is kept closed (see e.g. Figure 2). In the in Figures 10 and 11, only with regard to the course of the through hole 13 modified embodiment connects the inclined Durchgangsborhung 13 a tooth space 12 with each second subsequent interdental space.

    Vor jedem Zahneingriff 8 ist in den Gehäusewandungen 14, 16 für die in den Figuren 2 bis 9 dargestellten Rotationskolben 1, 7 jeweils ein erster Verbindungskanal 18 vorgesehen, der den an ihm vorbei drehenden Zahnzwischenraum 12 mit einer Durchgangsbohrung 13 strömungstechnisch verbindet und diese mit verdichteter Luft bzw. verdichtetem Kraftstoffgemisch füllt. Hinter dem Zahneingriff 8 ist in den Gehäusewandungen 15, 17 für jeden der beiden Rotationskolben 1, 7 jeweils ein zweiter Verbindungskanal 19 vorgesehen, der die an ihm vorbei drehende Durchgangsbohrung 13 mit einem der nachfolgenden Zahnzwischenräume 12 strömungstechnisch verbindet, in den hinein die Füllung der Durchgangsbohrung 13 expandiert.Before each tooth engagement 8 is in the housing walls 14, 16 for the in the rotary pistons 1, 7 shown in Figures 2 to 9 each have a first Connection channel 18 is provided, which rotates past it Interdental space 12 with a through hole 13 fluidly connects and this with compressed air or compressed fuel mixture fills. Behind the meshing 8 is in the Housing walls 15, 17 for each of the two rotary pistons 1, 7 in each case a second connecting channel 19 is provided, which the past him rotating through bore 13 with one of the following Interdental spaces 12 fluidly connects, into which the Filling of the through hole 13 expands.

    In den Gehäusewandungen 14, 16 sind jeweils vor und hinter dem dargestellten Zahneingriff 8 eine Auspufföffnung 20 vorgesehen, denen in den Gehäusewandungen 15, 17 jeweils eine mit einer (in der Zeichnung nicht näher dargestellten) Luft- oder Kraftstoffgemisch-Zufuhr verbundene Ansaugöffnung 21 so gegenüberliegt, dass die Auspufföffnung 20 und die zugeordnete Ansaugöffnung 21 nacheinander mit dem jeweils vorbeidrehenden Zahnzwischenraum 12 strömungstechnisch verbunden werden. Dabei kann die Ansaugöffnung 21 die gegenüberliegende Auspufföffnung 20 über nur einen Teil-Winkelbereich a überdecken. Die Ansaugöffnung 21 erstreckt sich über die Winkelbreite b zweier aufeinanderfolgender Zahnzwischenräume 12.In the housing walls 14, 16 are in front of and behind the shown meshing 8 an exhaust opening 20 is provided, which in the housing walls 15, 17 each with a (in the drawing not shown) connected air or fuel mixture supply Suction port 21 is opposite so that the exhaust port 20 and assigned suction opening 21 one after the other with the past rotating tooth space 12 fluidically connected become. The suction opening 21 can be the opposite one Cover exhaust opening 20 over only a partial angular range a. The Intake opening 21 extends over the angular width b two successive interdental spaces 12.

    In den Figuren 2 bis 9 geben die Pfeile 22 die Drehrichtung des Innenzahnrades 1 und die Pfeile 23 die Drehrichtung des in diesen Figuren dargestellten Rotationskolbens 7 im Bereich des dargestellten Zahneingriffs 8 an.In Figures 2 to 9, the arrows 22 indicate the direction of rotation of the Internal gear 1 and arrows 23 indicate the direction of rotation in these figures shown rotary piston 7 in the region of the tooth engagement shown 8 on.

    Bei der Positionsdarstellung gemäß Figur 2 wurde der rechts außen dargestellte Zahnzwischenraum 12 des Innenzahnrades 1 bereits von dem unter leichtem Überdruck stehenden Verbrennungsabgas entleert (siehe Pfeil "Auspuff") und über die Ansaugöffnung 21 bereits wieder mit Verbrennungsluft oder einem Kraftstoffgemisch zumindest teilweise befüllt (siehe den Pfeil "Ansaug"), wobei der vorlaufende Zahnzwischenraum 12 über die Ansaugöffnung 21 noch weiter mit Verbrennungsluft bzw. einem Kraftstoffgemisch versorgt wird. Der in Figur 2 von rechts gesehen dritte Zahnzwischenraum 12 wird zunehmend einer Verdichtung unterworfen, die bei der in Figur 2 dargestellten Position 1/4, in Figur 4 2/4 und in Figur 6 3/4 beträgt. Figur 8 zeigt für diesen Zahnzwischenraum 12 das Verdichtungsende, also die Maximalverdichtung. Der Zahnzwischenraum 12 des Innenzahnrades 1, der bereits weitgehend den Bereich des Zahneingriffs 8 verlassen hat, leistet bei der Position gemäß Figur 2 3/4 Arbeit, während bei der nachfolgenden, in Figur 4 dargestellten Position bereits das Arbeitsende erreicht ist. Figur 6 zeigt dann für den nachfolgenden, aus dem Zahneingriffsbereich 8 austretenden Zahnzwischenraum 1/4 Arbeit und in Figur 8 2/4 Arbeit. Dabei lässt Figur 6 erkennen, dass die sich vor dem Zahneingriff 8 befindliche Durchgangsbohrung 13 in strömungstechnische Verbindung kommt mit dem in der Gehäusewandung 14 angedeuteten ersten Verbindungskanal 18, über den die Befüllung der Durchgangsbohrung 13 aus dem vorlaufenden Zahnzwischenraum 12 erfolgt. In gleicher Weise zeigt Figur 6, dass die sich links vom Zahneingriff 8 befindliche Durchgangsbohrung 13 über den zweiten, in der Gehäusewandung 15 vorgesehenen Verbindungskanal 19 in den gerade aus dem Zahneingriffsbereich austretenden Zahnzwischenraum hinein entspannt und dabei Arbeit leistet.In the positional representation according to FIG. 2, this was on the right shown tooth space 12 of the internal gear 1 already from the Combustion exhaust gas under slight overpressure is emptied (see arrow "Exhaust") and already with the intake port 21 again Combustion air or a fuel mixture at least partially filled (see the arrow "suction"), the leading interdental space 12 via the intake opening 21 even further with combustion air or a Fuel mixture is supplied. The third seen from the right in Figure 2 Interdental space 12 is increasingly subjected to compression, which in the position 1/4 shown in FIG. 2, 2/4 in FIG. 4 and in FIG. 6 Is 3/4. Figure 8 shows this for this tooth space 12 Compression end, i.e. the maximum compression. Interdental space 12 of the internal gear 1, which already largely covers the area of meshing 8 has left, does 3/4 work in the position according to FIG. 2, while in the subsequent position shown in FIG. 4, this already End of work is reached. Figure 6 then shows for the following, from the Tooth mesh area 8 exiting tooth space 1/4 work and in Figure 8 2/4 work. Figure 6 shows that the before Gear engagement 8 through bore 13 in fluidic Connection comes with that indicated in the housing wall 14 first connecting channel 18, through which the filling of the through hole 13 takes place from the leading tooth space 12. In the same way FIG. 6 shows that the one to the left of the tooth engagement 8 Through hole 13 through the second one in the housing wall 15 provided connection channel 19 in the straight from the Intermediate tooth space exiting and relaxed doing work.

    Analog sind die Verhältnisse hinsichtlich des Rotationskolbens 7, für den Figur 2 für den vor dem Zahneingriff 8 befindlichen Zahnzwischenraum eine Verdichtung 3/4 und für den gerade aus dem Zahneingriff 8 austretenden Zahnzwischenraum eine Arbeit 1/4 angibt. Figur 4 zeigt für den unteren Zahnzwischenraum das Ende der Verdichtung und für den oberen Zahnzwischenraum 2/4 Arbeit. Gemäß Figur 6 ergibt sich für den unteren nachfolgenden Zahnzwischenraum eine Verdichtung von 1/4 und für den oberen Zahnzwischenraum eine Arbeit von 3/4; bei dem in Figur 8 dargestellten folgenden Takt erfolgt in dem unteren Zahnzwischenraum eine Verdichtung von 2/4, während für den oberen, vollständig aus dem Zahneingriffsbereich ausgetretenen Zahnzwischenraum das Arbeitsende angegeben ist.The relationships with respect to the rotary piston 7 are similar Figure 2 for the interdental space located in front of the tooth engagement 8 Compression 3/4 and for those just emerging from the tooth mesh 8 Interdental space indicates 1/4 work. Figure 4 shows for the lower one Interdental space the end of compaction and for the upper one Interdental space 2/4 work. According to Figure 6 results for the lower subsequent tooth space a compression of 1/4 and for the upper interdental space a work of 3/4; in the case of FIG. 8 The following cycle shown takes place in the lower interdental space Compression of 2/4, while for the upper, completely from the Tooth engagement area emerged between the teeth the end of work is specified.

    Der Arbeitsablauf erfolgt somit in einem modifizierten 5-Takt-Verfahren 1. Takt Auspuff 2. Takt Ansaugen (wobei Auspuff und Ansaugen - wie bei einem Zweitaktmotor - dynamisch in einem Vorgang erfolgen können) 3. Takt Verdichtung 4. Takt Verdampfung (Gemischaufbereitung und Verbrennungseinleitung) 5. Takt Arbeit. The workflow is therefore carried out in a modified 5-stroke process 1st bar Exhaust 2nd bar Intake (exhaust and intake - as with a two-stroke engine - can be done dynamically in one process) 3rd bar compression 4 tact Evaporation (mixture preparation and combustion initiation) 5th bar Job.

    Verdichtete Luft oder ein verdichtetes Kraftstoffgemisch wird erfindungsgemäß ventillos über ein "Fenster" (erster Verbindungskanal 18) in eine rotierende Verbrennungskammer (Durchgangsbohrung 13) gedrückt, wo das aufbereitete Kraftstoffgemisch verbrannt und dann ventillos wiederum über ein "Fenster" (zweiter Verbindungskanal 19) in ein rotierendes Arbeitsvolumen (Zahnzwischenraum 12) verschoben wird. Dabei kann die Einleitung der Verbrennung ohne oder aber mit Hilfe von Zünd- oder Glühkerzen erfolgen.Compressed air or a compressed fuel mixture according to the invention valve-less via a "window" (first connecting channel 18) pressed into a rotating combustion chamber (through hole 13), where the processed fuel mixture burned and then valveless again via a "window" (second connecting channel 19) rotating working volume (interdental space 12) is shifted. there can initiate the combustion without or with the help of ignition or Glow plugs are made.

    Claims (7)

    1. Rotary piston engine having at least two rotary pistons (1, 7), both being formed as gearwheels mounted in a rotatable fashion on mutually perpendicular axes in a housing (3, 14, 15, 16, 17) providing a closed seal for the pistons on both faces as well as around their circumferences, and being at one point in a sliding, mutually sealing engagement of gear teeth (8) with each other, having the following features:
      a) the at least two rotary pistons (1, 7) have different diameters;
      b) the teeth (10, 11) forming the individual pistons make contact at an angle of 45° in each case and have slightly helical flanks;
      c) the tooth spaces (12) whichs forms the chambers for carburetion and compression and the working chamber have an inside contour precisely matching the shape of the teeth;
      d) each tooth (10, 11) is assigned a throughflow bore (13), the latter forming a combustion chamber and being incorporated in the rotary piston (1, 7), which bore opens into an outlet on the circular surface areas of the rotary piston (1a, 7a) which lie opposite each other, a closed seal being provided through certain angles of rotation for the bore at these points by means of opposing housing walls (14, 15, 16, 17) which enclose one rotary piston (1, 7) in a sandwich arrangement;
      e) ahead of the tooth engagement point (8) lies a first connecting duct (18) for each rotary piston (1, 7) in the aforementioned housing walls (14, 16), which duct provides a flow connection between the tooth space (12) rotating past it and throughflow bore (13) and fills the latter with compressed air or a fuel mixture;
      f) behind the tooth engagement point (8) lies a second connecting duct (19) for each rotary piston (1, 7) in the aforementioned housing walls (15, 17), which duct provides a flow connection between the throughflow bore (13) rotating past and one of the subsequent tooth spaces (12), into which the charge in the throughflow bore (13) expands;
      g) the aforementioned housing walls (14, 16 and 15, 17) incorporate exhaust openings (20) both before and after the tooth engagement point (8) as well as intake openings (21) lying opposite the exhaust openings (20), with the intake openings being connected to an air intake or a fuel mixture intake, which openings are flow-connected in sequence to the tooth spaces (12) passing by, characterized in that the intake opening (21) overlaps the opposite-lying exhaust opening (20) for a partial angle of rotation (a).
    2. Rotary piston engine according to Claim 1, characterized in that the intake opening (21) extends across an angular width (b) of more than one tooth space (12).
    3. Rotary piston engine according to Claim 1 or 2, characterized in that the throughflow bores (13) forming the combustion chambers are coated with a layer of heat insulating material.
    4. Rotary piston engine according to Claim 3, characterized in that the second connecting ducts (19) are also coated with a layer of heat insulating material.
    5. Rotary piston engine according to one of the preceding claims, characterized in that the throughflow bores (13) forming the combustion chambers are equipped with catalysts or inserts for flameless combustion.
    6. Rotary piston engine according to one of the above claims, characterized in that a rotary piston is formed as an internal ring gear (1) having a large diameter and enclosing a plurality of rotary pistons (7), each being of a smaller diameter and having external toothing (6), and each being in tooth engagement (8) with the internal ring gear (1) and having their axes of rotation (9) lying in a diametrically symmetrical plane of the internal ring gear (1), the latter forming the output of the engine.
    7. Rotary piston engine according to Claim 6, characterized in that the internal ring gear (1) also has external toothing (2) for the transfer of torque to a transmission connected after the engine.
    EP01911339A 2000-03-28 2001-01-11 Rotary piston engine Expired - Lifetime EP1272738B1 (en)

    Applications Claiming Priority (3)

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    DE10015388A DE10015388C2 (en) 2000-03-28 2000-03-28 Rotary piston engine
    DE10015388 2000-03-28
    PCT/DE2001/000083 WO2001077498A1 (en) 2000-03-28 2001-01-11 Rotary piston engine

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    EP1272738A1 EP1272738A1 (en) 2003-01-08
    EP1272738B1 true EP1272738B1 (en) 2004-07-14

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    WO2005096769A2 (en) * 2004-04-05 2005-10-20 Mechanology, Inc. Highly supercharged regenerative gas turbine
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    DE10015388A1 (en) 2001-10-18
    EP1272738A1 (en) 2003-01-08
    ATE271184T1 (en) 2004-07-15
    JP3831254B2 (en) 2006-10-11
    JP2003535249A (en) 2003-11-25
    US20030111040A1 (en) 2003-06-19
    WO2001077498A1 (en) 2001-10-18
    US6729295B2 (en) 2004-05-04
    DE50102854D1 (en) 2004-08-19
    DE10015388C2 (en) 2003-05-22

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