DE3808506A1 - Axial-rotary piston engine with sinusoidal stroke path - Google Patents

Axial-rotary piston engine with sinusoidal stroke path

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Publication number
DE3808506A1
DE3808506A1 DE19883808506 DE3808506A DE3808506A1 DE 3808506 A1 DE3808506 A1 DE 3808506A1 DE 19883808506 DE19883808506 DE 19883808506 DE 3808506 A DE3808506 A DE 3808506A DE 3808506 A1 DE3808506 A1 DE 3808506A1
Authority
DE
Germany
Prior art keywords
stroke
sinusoidal
piston
axial
pistons
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.)
Ceased
Application number
DE19883808506
Other languages
German (de)
Inventor
Des Erfinders Auf Nennung Verzicht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuehner Hubert Dipl-Ing (fh) 7993 Kressbronn De
Original Assignee
Kuehner Hubert Dipl-Ing (fh) 7993 Kressbronn De
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kuehner Hubert Dipl-Ing (fh) 7993 Kressbronn De filed Critical Kuehner Hubert Dipl-Ing (fh) 7993 Kressbronn De
Priority to DE19883808506 priority Critical patent/DE3808506A1/en
Priority to DE19883832133 priority patent/DE3832133A1/en
Priority to DE19883832140 priority patent/DE3832140A1/en
Priority to DE19883832139 priority patent/DE3832139C2/en
Priority to DE19883832141 priority patent/DE3832141C2/en
Priority to DE19883832138 priority patent/DE3832138A1/en
Priority to DE19883832134 priority patent/DE3832134C2/en
Priority to DE19883832132 priority patent/DE3832132A1/en
Priority to DE19883832135 priority patent/DE3832135C2/en
Publication of DE3808506A1 publication Critical patent/DE3808506A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/06—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Axial-rotary piston engine with sinusoidal stroke path. The stroke path is sinusoidal (10) and has the function: stroke = H/2<*> sine (alpha> Where H is equal to the overall stroke and alpha extends from 0 to 720 degrees over 2 full sine periods. For an internal combustion engine running fully balanced (without additional mass weights), 4 or more pistons (6) are uniformly arranged in a circular cylindrical housing (1) concentrically with the rotatably mounted central axis (2) and are guided over one or more curved paths (9) so that at each revolution of the cylindrical housing (1) each piston (6) performs two full sinusoidal movements corresponding to four working strokes. The charge cycle is controlled by way of inlet ports (15) and exhaust ports (16) in the cylinder cover (11), in which the spark plug (12) is also located so that at each revolution of the cylindrical housing (1) each piston (6) performs a full working cycle of four strokes. <IMAGE>

Description

Titel:Title:

Axial-Kreiskolbenmotor mit sinusförmigem Hubverlauf.Axial rotary piston motor with sinusoidal stroke.

Gattung:Genus:

Die Erfindung betrifft einen Otto- oder Dieselmotor nach dem Oberbegriff des Anspruchs 1.The invention relates to a gasoline or diesel engine according to the preamble of claim 1.

Angaben zur Gattung:Information on the genus:

Der vorgegebene Motor ermöglicht, durch den unmittelbar aufeinander folgenden Ablauf von vier Arbeitstakten mit innerer Verbrennung, die Umwandlung von in flüssigem oder gasförmigem Brennstoff enthaltener chemischer Enerie in mechanische Energie, die als Drehmoment von der rotierenden Motorwelle abgenommen wird.The given engine enables through the immediate successive sequence of four work cycles with internal combustion, the conversion of into containing liquid or gaseous fuel chemical energy into mechanical energy, which as Torque removed from the rotating motor shaft becomes.

Stand der Technik:State of the art:

Es ist bekannt, daß zur Verwendung als Brennkraftmaschine mit intermittierender innerer Verbrennung hauptsächlich Hubkolbenmotoren in Reihen-, V- oder Boxer-Bauform in Viertakt-Bauart mit Ventilssteuerung und dann noch Kreiskolbenmotoren in Trochoidenbauart verwendet werden. Die vielen anderen Arbeitsräume bildenden Bauarten, welche im Laufe der Zeit bekannt wurden, sind in dem Buch "Einteilung der Rotationskolbenmaschinen" von Felix Wankel (Deutsche Verlagsanstalt 1963) enthalten.It is known to be used as an internal combustion engine with intermittent internal combustion mainly reciprocating engines in series, V or Boxer design in four-stroke design with valve control and then trochoidal rotary piston engines be used. The many other work rooms educational designs that have become known over time are in the book "Classification of rotary piston machines" by Felix Wankel (German publishing house 1963) included.

Kritik des Standes der Technik:Critique of the state of the art:

Die Kolbenmotoren als Brennkraftmaschinen erzeugen durch die endliche Pleuellänge im Kurbeltrieb freie Massenkräfte, welche durch einen besonderen Massenausgleich kompensiert werden müssen.Generate the piston engines as internal combustion engines due to the finite connecting rod length in the crank mechanism  Mass forces, which through a special mass balance must be compensated.

Zur Steuerung des Gaswechsels im Viertakt-Verfahren ist die Ventilsteuerung üblich. Diese wiederum braucht einen eigenen Antrieb mit Nockenwelle, um die oszillierend bewegten Teile anzutreiben.For controlling the gas change in the four-stroke process valve control is common. This in turn needs its own camshaft drive to oscillate to drive moving parts.

Trochoidenmaschinen in Kreiskolbenbauart haben diese Nachteile nicht. Ihre Nachteile sind: Ungünstige Brennraumform, nur Liniendichtung an zwei Seiten des Brennraumes und große Überschneidung der Steueröffnungen für die am Umfang angeordneten Ein- und Auslaßöffnungen.Trochoidal machines of the rotary piston type have this No disadvantages. Their disadvantages are: unfavorable Combustion chamber shape, only line seal on two sides of the Combustion chamber and large overlap of the control openings for the inlet and outlet openings arranged on the circumference.

Aufgabe:Task:

Der Erfindung liegt die Aufgabe zu Grunde, in völligem Massenausgleich, ohne statische oder dynamische Unwucht nach außen, die aufwendige und die Drehzahl begrenzende Ventilsteuerung zu vermeiden und mittels Steueröffnungen, ohne die oben angeführten Nachteile der Trochoidenmaschinen, eine kompakte Brennkraftmaschine mit vorzugsweise vier, oder mehr einfach-, bzw. doppelt wirkenden Kolben zu ermöglichen.The invention is based on the object in complete Mass balance, without static or dynamic Imbalance to the outside, the complex and the speed to avoid limiting valve control and by means of Control openings without the disadvantages mentioned above the trochoidal machines, a compact internal combustion engine with preferably four or more simple, or to enable double-acting pistons.

Lösung:Solution:

Die Aufgabe wird nach Fig. 1, Fig. 2 und Fig. 3 erfindungsgemäß dadurch gelöst, daß in einem drehenden Zylindergehäuse (1), auf einem zur Drehachse (2) konzentrischen Teilkreis (3), eine Anzahl von vier oder mehr Zylindern (4) gleichmäßig verteilt sind.The object is achieved according to Fig. 1, Fig. 2 and Fig. 3 according to the invention characterized in that in a rotating cylinder housing (1), on a concentric axis of rotation (2) partial circle (3), a plurality of four or more cylinders (4 ) are evenly distributed.

In Fig. 1 sind es fünf doppelt wirkende in gleicher Teilung angeordnete Kolben (6) und Zylinder (4).In Fig. 1 there are five double-acting pistons ( 6 ) and cylinders ( 4 ) arranged in the same division.

Die Zylinderachsen (5) sind vorzugsweise parallel zur Drehachse (2) angeordnet.The cylinder axes ( 5 ) are preferably arranged parallel to the axis of rotation ( 2 ).

Die in den Zylindern (4) gleitenden, doppelt wirkenden Kolben (6) werden über ihre Kolbenstege (7) und den daran angebrachten Rollen (8) auf einer gemeinsamen, mit dem Außengehäuse (14) fest verbundenen Kurvenbahn (9) so geführt, daß bei einer Umdrehung des Zylindergehäuses (1) jeder Kolben (6) einen sinusförmigen (10) Hubverlauf von genau vier Takten und dementsprechend zwei Sinusperioden ausführt. Dazu ist die obere und untere Kurvenbahn (9) als Hüllkurve zu einer Sinuskurve (10) ausgebildet. Die Form der Kurvenbahn (9) ist abhängig vom Durchmesser und vom Abstand der beiden Rollen (8). Der Hubverlauf der Kolben (6) über dem abgewickelten Teilkreis (3) nach Fig. 1 entspricht somit einer Sinuskurve (10) mit genau zwei Perioden.The double-acting pistons ( 6 ) sliding in the cylinders ( 4 ) are guided via their piston webs ( 7 ) and the rollers ( 8 ) attached to them on a common cam track ( 9 ) firmly connected to the outer housing ( 14 ) so that with one revolution of the cylinder housing ( 1 ) each piston ( 6 ) executes a sinusoidal ( 10 ) stroke course of exactly four cycles and accordingly two sine periods. For this purpose, the upper and lower curved path ( 9 ) is designed as an envelope curve for a sine curve ( 10 ). The shape of the cam track ( 9 ) depends on the diameter and the distance between the two rollers ( 8 ). The stroke course of the pistons ( 6 ) over the developed pitch circle ( 3 ) according to FIG. 1 thus corresponds to a sine curve ( 10 ) with exactly two periods.

Die Steuerung des Gaswechsels erfolgt über in den Zylinderdeckeln (11) angebrachten Kanälen mit Öffnungen für Ein- (15) und Auslaß (16) unter denen, durch die Drehbewegung des Zylindergehäuses (1), die Arbeitsräume der Kolben (6) vorbeigeführt werden. In den Zylinderdeckeln (11) ist außerdem auch je eine Zündkerze (12), oder bei Dieselversionen die Einspritzdüse, eingebaut. Abgedichtet werden die Arbeitsräume zwischen Kolben (6) und Zylinderwand (4) durch die üblichen Kolbenringe. Zur Abdichtung zwischen Zylinder (4) und Zylinderdeckel (11) sind in den oberen Planseiten der Zylinderlaufbuchsen (4) konzentrische Dichtringe (13) angeordnet.The gas exchange is controlled via channels in the cylinder covers ( 11 ) with openings for inlet ( 15 ) and outlet ( 16 ) below which, through the rotary movement of the cylinder housing ( 1 ), the working spaces of the pistons ( 6 ) are guided past. A spark plug ( 12 ) or, in the case of diesel versions, the injection nozzle is also installed in the cylinder covers ( 11 ). The working spaces between the piston ( 6 ) and the cylinder wall ( 4 ) are sealed by the usual piston rings. To seal between the cylinder ( 4 ) and cylinder cover ( 11 ), concentric sealing rings ( 13 ) are arranged in the upper plane sides of the cylinder liners ( 4 ).

Der Kühlwasserzu- und -ablauf erfolgt über die Drehachse (2) in das rotierende Zylindergehäuse (1) hinein. Die Kraftübertragung durch den jeweils den Arbeitstakt ausführenden Kolben (6) erfolgt über die Schräge der ruhenden Kurvenbahn (9), auf der die Kolben (6) in sinusförmigem (10) Hubverlauf geführt werden und dabei eine tangentiale Kraftkomponente am Zylinderteilkreis (3) hervorrufen, welche zusammen mit dem Teilkreisradius des Zylindergehäuses (1) ein antreibendes Dehmoment um die Drehachse (2) erzeugt.The cooling water inlet and outlet take place via the axis of rotation ( 2 ) into the rotating cylinder housing ( 1 ). The force transmission through the piston ( 6 ) executing the work cycle takes place via the slope of the resting cam track ( 9 ), on which the pistons ( 6 ) are guided in a sinusoidal ( 10 ) stroke and thereby cause a tangential force component on the cylinder pitch circle ( 3 ). which generates, together with the pitch circle radius of the cylinder housing (1) a driving Torque Note around the rotation axis (2).

Erzielbare Vorteile:Achievable advantages:

Die mit der Erfindung erzielbaren Vorteile bestehen darin, daß die gleichmäßig verteilten Kolben (6) einen sinusförmigen (10) Hubverlauf haben. Somit ist insgesamt nach außen ein vollständiger Massenausgleich ohne zusätzliche Ausgleichsgewichte gewährleistet. Denn ein zweimaliges Differenzieren des sinusförmigen (10) Hubverlaufs ergibt nämlich einen wiederum sinusförmigen Beschleunigungsverlauf.The advantages that can be achieved with the invention are that the evenly distributed pistons ( 6 ) have a sinusoidal ( 10 ) stroke profile. Overall, a complete mass balance is thus ensured without additional counterweights. This is because differentiating the sinusoidal ( 10 ) stroke curve twice results in a sinusoidal acceleration curve.

Die Summe aller axialen Beschleunigungen, der über die zweifache Sinuskurve (10) gleichmäßig verteilten Kolben (6), ergibt aber in jeder beliebigen Winkelstellung Alpha des Zylindergehäuses (1) immer den Wert Null.The sum of all axial accelerations of the pistons ( 6 ), which are evenly distributed over the double sine curve ( 10 ), always results in the value zero in any angular position Alpha of the cylinder housing ( 1 ).

Die Formel lautet:The formula is:

"N" ist die Anzahl der gleichmäßig angeordneten Kolben (6) und muß < 2 sein. "Z" ist die "Numerierung" vom Anfang = 0 bis zum vorletzten Kolben (6) = N-1." N " is the number of pistons ( 6 ) arranged evenly and must be <2. " Z " is the "numbering" from the beginning = 0 to the penultimate piston ( 6 ) = N -1.

Ebenfalls vorteilhaft ist, daß um die Drehachse (2) des Zylindergehäuses (1) keinerlei dynamische Unwucht durch die sinusförmig auf und ab bewegten Kolben (6) entsteht, wenn deren gleichmäßig verteilte Anzahl N mindestens vier oder mehr (untereinander gleichen) Kolben (6) entspricht. Auch hier ist in jeder beliebigen Winkelstellung der Drehachse (2) die Summe der Unwuchtmomente in radialer Richtung gleich Null.It is also advantageous that there is no dynamic imbalance around the axis of rotation ( 2 ) of the cylinder housing ( 1 ) due to the pistons ( 6 ) moving up and down sinusoidally, if their evenly distributed number N has at least four or more pistons ( 6 ) which are the same as one another. corresponds. Here too, the sum of the unbalance moments in the radial direction is zero in any angular position of the axis of rotation ( 2 ).

Die Formel dafür lautet:The formula for this is:

"N" und "Z" haben wieder die gleiche Bedeutung wie oben. Nur "N" muß jetzt < 3 sein." N " and " Z " again have the same meaning as above. Only " N " must now be <3.

Die Steuerung des Gaswechsels erfolgt ohne zusätzlich bewegte Teile nur über Ein- (15) und Auslaß-Kanäle (16) im Zylinderdeckel, so daß dabei keine schädlichen Überschneidungen, Lineardichtungen oder ungünstige Brennraumformen wie bei Trochoidenmaschinen in Kauf genommen werden müssen.The gas exchange is controlled without additional moving parts only via inlet ( 15 ) and outlet channels ( 16 ) in the cylinder cover, so that no harmful overlaps, linear seals or unfavorable combustion chamber shapes as with trochoidal machines have to be accepted.

Claims (1)

Axial-Kreiskolbenmotor mit sinusförmigem Hubverlauf. Insbesondere als Otto- oder Dieselmotor für Fahrzeuge oder stationären Betrieb vorgesehen. Dazu sind in einem drehbar gelagerten Zylindergehäuse (1) vier oder mehr einfach, bzw. doppelt wirkende Kolben (6) auf einem zur Drehachse (2) konzentrischen Teilkreis (3) gleichmäßig verteilt und werden axial auf einer doppelhubigen Kurvenbahn (9) über Rollen (8) geführt. Dadurch gekennzeichnet, daß der Hubverlauf der Kolben (6) im drehenden Zylindergehäuse sinusförmig (10) ist, wodurch sich die freien Massenkräfte und Unwuchtmomente der einzelnen Kolben (6), sowohl in axialer als auch in radialer Richtung insgesamt vollständig ausgleichen und dabei eine Umdrehung des Zylindergehäuses (1) einem Viertakt-Ablauf von genau zwei Sinusperioden entspricht.Axial rotary piston motor with sinusoidal stroke. In particular provided as a gasoline or diesel engine for vehicles or stationary operation. For this purpose, four or more single or double-acting pistons ( 6 ) are evenly distributed in a rotatably mounted cylinder housing ( 1 ) on a pitch circle ( 3 ) concentric to the axis of rotation ( 2 ) and are axially on a double-stroke cam track ( 9 ) via rollers ( 8 ) led. Characterized in that the stroke course of the piston (6) is in the rotating cylinder housing sinusoidal (10), whereby the free inertia forces and unbalanced moments of the individual pistons (6), both in the axial and in the radial direction generally completely offset and thereby a revolution of the Cylinder housing ( 1 ) corresponds to a four-stroke cycle of exactly two sine periods.
DE19883808506 1987-03-28 1988-03-15 Axial-rotary piston engine with sinusoidal stroke path Ceased DE3808506A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19883808506 DE3808506A1 (en) 1987-03-28 1988-03-15 Axial-rotary piston engine with sinusoidal stroke path
DE19883832133 DE3832133A1 (en) 1988-03-15 1988-09-22 Charge stratification in axial flow rotary engines by utilising the intake flow and the centrifugal forces
DE19883832140 DE3832140A1 (en) 1988-03-15 1988-09-22 Mounting of the pistons for absorption of their centrifugal forces on axial flow rotary engines
DE19883832139 DE3832139C2 (en) 1988-03-15 1988-09-22 Hydrostatic bearings to absorb the centrifugal forces of the pistons of axial piston motors
DE19883832141 DE3832141C2 (en) 1988-03-15 1988-09-22 Rolling bearing guidance of the pistons of axial piston motors
DE19883832138 DE3832138A1 (en) 1988-03-15 1988-09-22 Piston roller bearing for absorption of the radial forces on axial flow rotary engines
DE19883832134 DE3832134C2 (en) 1988-03-15 1988-09-22 Axial piston internal combustion engine
DE19883832132 DE3832132A1 (en) 1988-03-15 1988-09-22 Wrapping of the pistons to absorb the radial forces on axial flow rotary engines
DE19883832135 DE3832135C2 (en) 1988-03-15 1988-09-22 Compression adjustment device for single-acting axial piston motors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3710400 1987-03-28
DE19883808506 DE3808506A1 (en) 1987-03-28 1988-03-15 Axial-rotary piston engine with sinusoidal stroke path

Publications (1)

Publication Number Publication Date
DE3808506A1 true DE3808506A1 (en) 1988-11-17

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Application Number Title Priority Date Filing Date
DE19883808506 Ceased DE3808506A1 (en) 1987-03-28 1988-03-15 Axial-rotary piston engine with sinusoidal stroke path

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DE (1) DE3808506A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832139A1 (en) * 1988-03-15 1990-03-29 Kuehner Hubert Hydrostatic bearing of the pistons for absorbing the centrifugal forces on axial flow rotary engines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6806197U (en) * 1968-11-09 1970-08-13 Rudolf Maxein K G Maschb HYDRAULIC MOTOR.
EP0079750A1 (en) * 1981-11-12 1983-05-25 WALLER, Francis E. Parallel cylinder internal combustion engine
DE3408447A1 (en) * 1984-03-08 1985-09-12 Reinhold Dipl.-Hdl. 7590 Achern Starck Drive-shaft-controlled engine with sinusoidal power transmission surfaces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6806197U (en) * 1968-11-09 1970-08-13 Rudolf Maxein K G Maschb HYDRAULIC MOTOR.
EP0079750A1 (en) * 1981-11-12 1983-05-25 WALLER, Francis E. Parallel cylinder internal combustion engine
DE3408447A1 (en) * 1984-03-08 1985-09-12 Reinhold Dipl.-Hdl. 7590 Achern Starck Drive-shaft-controlled engine with sinusoidal power transmission surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832139A1 (en) * 1988-03-15 1990-03-29 Kuehner Hubert Hydrostatic bearing of the pistons for absorbing the centrifugal forces on axial flow rotary engines

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