DE3641146A1 - Rotary engine with combustion spaces of any design - Google Patents

Rotary engine with combustion spaces of any design

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Publication number
DE3641146A1
DE3641146A1 DE19863641146 DE3641146A DE3641146A1 DE 3641146 A1 DE3641146 A1 DE 3641146A1 DE 19863641146 DE19863641146 DE 19863641146 DE 3641146 A DE3641146 A DE 3641146A DE 3641146 A1 DE3641146 A1 DE 3641146A1
Authority
DE
Germany
Prior art keywords
rotor
design
housing
combustion
rotary engine
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Withdrawn
Application number
DE19863641146
Other languages
German (de)
Inventor
David Kunkel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19863641146 priority Critical patent/DE3641146A1/en
Publication of DE3641146A1 publication Critical patent/DE3641146A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/104—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

The invention relates to an internal combustion engine, in which a shortened two-lobed epicycloid ("trochoid") rotates in a trefoil-like housing and the gas feed is from inside through the rotor. Each of the 3 different combustion spaces can be placed in freely selectable form on each chamber. Due to the good combustion space, uniform movement and good mechanical efficiency, the consumption would be bound to be less than that of reciprocating and Wankel engines. Furthermore the life of the spark plugs is considerably increased due to the low heat load.

Description

Titeltitle

Kreiskolbenmotor mit beliebig konstruier­ baren VerbrennungsräumenRotary piston engine with any design combustible rooms

Gattung des AnmeldungsgegenstandesGenre of the object of registration

Die Erfindung betrifft einen Verbrennungsmotor, der ein Benzin-Luft-Gemisch entzündet, ver­ brennt und dabei Arbeit leistet.The invention relates to an internal combustion engine, which ignites a gasoline-air mixture, ver burns and does work.

Angaben zur GattungInformation on the genus

Der Verbrennungsmotor gehört zur Gattung der Kreiskolbenmotoren.The internal combustion engine belongs to the genus Rotary piston engines.

Stand der TechnikState of the art

Es ist bekannt, daß der Kreiskolbenmotor NSU- Wankel unbestritten viele Vorteile bietet, wie zum Beispiel: Einfachheit (keine Ventile), hohe Leistungskonzentration auf kleinem Raum, geräuscharmer und nahezu vibrationsfreier Lauf. It is known that the NSU Undoubtedly, Wankel offers many advantages, such as: simplicity (no valves), high power concentration in a small space, low-noise and almost vibration-free running.  

Kritik des Standes der TechnikCritique of the state of the art

Der "Wankelmotor" fällt unangenehm auf durch seinen hohen spezifischen Kraftstoffverbrauch, der auf den ungünstigen, langen und sichel­ förmigen Verbrennungsraum ("Mövenschwingen") zurückzuführen ist. Außerdem ist die Zündkerze dauernd wärmebelastet und hat eine entsprechend kürzere Lebensdauer.The "Wankel engine" falls through unpleasantly its high specific fuel consumption, the one on the awkward, long and sickle shaped combustion chamber ("gull swing") is due. In addition, the spark plug constantly exposed to heat and has a corresponding shorter lifespan.

Aufgabetask

Das Ziel der Erfindung ist, den Verbrauch zu senken und eine längere Lebensdauer der Zündkerze zu erreichen, aber trotzdem keinen Vorteil des "Wankelmotors" zu streichen.The aim of the invention is consumption lower and longer life of the To reach the spark plug, but still none Eliminate the advantage of the "Wankel engine".

Lösungsolution

Zur Lösung der Aufgabe mußte ein neuer Kreis­ kolbenmotor konstruiert werden. Eine verkürzte zweibogige Epizykloide ("Trochoide") kreist in einem kleeblattähnlichen Gehäuse. Der Ver­ brennungsraum ist in frei wählbarer Form an frei wählbarer Stelle plaziert (in meinem Ausführungsbeispiel wurde ein verbrennungs­ günstiger, halbkugeliger Verbrennungsraum gewählt). Dadurch, daß in jedem Verbrennungs­ raum eine eigene Zündkerze plaziert ist, und sie nicht dauernd der Wärmebelastung ausge­ setzt ist, hat sie eine über dreifache Lebens­ dauer gegenüber einer "Wankelzündkerze" (sie wird ja auch nur 1/3mal so oft beansprucht).To solve the problem, a new circular piston engine had to be constructed. A shortened double-arched epicycloid ("trochoid") circles in a shamrock-like housing. The combustion chamber is placed in a freely selectable position at a freely selectable position (in my embodiment, a combustion-favorable, hemispherical combustion chamber was chosen). Because space in each combustion a separate spark plug is in place, and they are not permanently connected to the heat load being set is, it has a three-fold service life compared with a "Wankelzündkerze" (it is also only 1/3 times as often claimed).

Erzielbare VorteileAchievable advantages

Die mit der Erfindung erzielbaren Vorteile bestehen darin, daß der Kraftstoffverbrauch eines Kreiskolbenmotors wesentlich gesenkt werden könnte. Außerdem wird eine über dreimal so lange Lebensdauer der einzelnen Zündkerzen erwartet (allerdings müssen dann immer drei Zündkerzen auf einmal ausgetauscht werden). Die Erfindung eignet sich voraussichtlich auch für Dieselkraftstoffbetrieb, bei ent­ sprechender Erhöhung der Verdichtung. Denk­ bar wäre auch ein Drehkolbenmotor, bei dem sich Rotor und Gehäuse jeweils um ihre Mittel­ punktachse drehen. Die Folge wäre ein turbinen­ artiger, vibrationsfreier Lauf, der durch die voll auswuchtbare reine Drehbewegung zustande käme.The advantages achievable with the invention  are that fuel consumption a rotary piston engine significantly reduced could be. It also gets over three times so long life of the individual spark plugs expected (but then always three Spark plugs can be replaced at once). The invention is likely to be suitable also for diesel fuel operation, at ent speaking increase in compaction. Think bar would also be a rotary piston engine in which rotor and housing each around their means rotate the point axis. The result would be a turbine well-behaved, vibration-free run, which by the fully balanced, pure rotary movement would come.

Beschreibung und Erläuterung eines Ausführungs­ beispielsDescription and explanation of an execution for example

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im fol­ genden näher beschrieben. Es zeigtAn embodiment of the invention is in the drawings and is shown in fol described in more detail. It shows

Fig. 1: Rotor bei 0°-Stellung, Fig. 1: rotor at the 0 ° position,

Fig. 2: Rotor bei 30°-Stellung, FIG. 2 rotor at 30 ° position,

Fig. 3: Rotor bei 180°-Stellung, Fig. 3: rotor at 180 ° position,

Fig. 4: Rotor bei 210°-Stellung, FIG. 4 rotor at 210 ° position,

Fig. 5: Motorgehäuse ohne Rotor (die ge­ strichelte Fläche stellt die Ver­ tiefung des Auslaßkanals dar), Fig. 5: the motor housing without the rotor (ge the dashed area represents the indentation of the outlet channel Ver group),

Fig. 6: Schnitt von Fig. 1 an der Symmetrie­ linie. Fig. 6: Section of Fig. 1 on the line of symmetry.

Es folgt die Erläuterung der Erfindung anhand der Zeichnungen nach Aufbau und Wirkungsweise der dargestellten Erfindung. The following is an explanation of the invention based on the drawings according to structure and mode of operation of the illustrated invention.  

Der große Kreis stellt ein innenverzahntes Zahnrad dar, das oberhalb des Rotors fest am Gehäuse befestigt ist.The large circle represents an internal gear Gear wheel that is fixed above the rotor is attached to the housing.

Der kleine Kreis stellt ein außenverzahntes Zahnrad dar, das über den Rotor hinausragt (bis zum innenverzahnten Zahnrad) und fest am Rotor befestigt ist.The small circle represents an external gear Gear wheel that protrudes beyond the rotor (up to the internal gear) and firmly is attached to the rotor.

Das Verhältnis von großem zu kleinem Zahnrad muß 3 : 2 betragen.The ratio of large to small gear must be 3: 2.

Die Zahlen in den einzelnen Kammern geben die Zahl des jeweiligen Verbrennungstaktes an:The numbers in the individual chambers indicate the Number of combustion cycles to:

  • 1. Takt - ansaugen,1st stroke - suck in,
  • 2. Takt - verdichten,2nd stroke - compress,
  • 3. Takt - arbeiten,3rd bar - work,
  • 4. Takt - ausschieben.4th cycle - slide out.

Zwischen 2. und 3. Takt wird das Gemisch ge­ zündet (evtl. geringe Vorzündung).Between the 2nd and 3rd cycle, the mixture is ge ignites (possibly slight pre-ignition).

Der Einlaß (durch EIN gekennzeichnet) ist nach oben (zum Betrachter hin) an einen dreieckähnlichen Ansaugkanal angeschlossen. Der Auslaß (durch AUS gekennzeichnet) ist nach unten (vom Betrachter weg) an einen ebenfalls dreieckähnlichen Auslaßkanal ange­ schlossen.The inlet is (marked by ON) upwards (towards the viewer) to one triangular-like intake duct connected. The outlet (indicated by OFF) is down (away from the viewer) to one also triangle-like outlet channel closed.

An den 3 Ecken, an denen der Rotor ständig anliegt, muß eine Dichtleiste (bekannt vom "Wankelmotor" her) eingesetzt werden. Ebenso müssen auf der Innenseite des Gehäuses Dicht­ streifen verlegt werden (rote Kennzeichnung). Die Schraffierung in Fig. 5 soll eine Ver­ tiefung darstellen, die als Auslaßkanal dient. Dieser wird an beliebiger Stelle "angezapft", um die Abgase über einen Schalldämpfer ins Freie zu entlassen. Von derselben Form ist auch der Einlaßkanal auf der oberen Seite des Gehäuses, über den das Gasgemisch vom Vergaser in den Einlaß, und anschließend in die einzelnen Kammern strömt. Denkbar wäre auch die Möglichkeit des Direkteinspritzens, wobei der Kraftstoff direkt in den Verbrennungs­ raum eingespritzt und anschließend entzündet würde.A sealing strip (known from the "Wankel engine") must be used at the 3 corners where the rotor is always in contact. Sealing strips must also be laid on the inside of the housing (red marking). The hatching in Fig. 5 is intended to represent a recess that serves as an outlet channel. This is "tapped" at any point in order to discharge the exhaust gases into the open via a silencer. The inlet duct on the upper side of the housing, through which the gas mixture flows from the carburetor into the inlet and then into the individual chambers, is of the same shape. The possibility of direct injection would also be conceivable, with the fuel being injected directly into the combustion chamber and then ignited.

Der Mittelpunkt des kleinen Zahnrads beschreibt einen Kreis innerhalb des großen Zahnrads. An dieser Stelle (Mittelpunkt des kleinen Zahn­ rads) wird die Leistung über eine Kurbelwelle abgenommen.The center of the small gear describes a circle inside the big gear. At this point (center of the small tooth rads) is the power via a crankshaft decreased.

Vorteile gegenüber dem HubkolbenmotorAdvantages over the reciprocating piston engine

Freiheit in der Gestaltung des Einlaßsystems mit mehreren Öffnungen durch räumliche Trennung der Arbeitstakte auf dem RotorFreedom in the design of the intake system with multiple openings due to spatial separation the work cycles on the rotor

  • - keine Ventile, dadurch bessere Füllung und sehr breites Leistungsmaximum,- No valves, therefore better filling and very wide maximum power,
  • - konstante Steuerzeiten, durch Lage der Öff­ nungen,- constant timing, due to the position of the public mentions,
  • - kleinere Reibungsfläche, dadurch besserer mechanischer Wirkungsgrad,- smaller friction surface, therefore better mechanical efficiency,
  • - durch unversperrte Auslaßöffnungen gute Re­ sonanzwellen-Aufladung möglich.- Good Re through unblocked outlet openings Sound wave charging possible.

Vorteile gegenüber dem "Wankelmotor"Advantages over the "Wankel engine"

  • - längere Lebensdauer der Zündkerzen, durch keine dauernde Wärmebelastung,- longer spark plug life, due to no permanent heat load,
  • - günstiger, frei wählbarer Verbrennungsraum.- Favorable, freely selectable combustion chamber.

Vorteil gegenüber Hubkolben- und "Wankelmotoren"Advantage over reciprocating and "Wankel engines"

  • - geringerer Treibstoffverbrauch durch guten Verbrennungsraum und mechanischen Wirkungs­ grad.- lower fuel consumption through good Combustion chamber and mechanical effects Degree.

Claims (1)

Kreiskolbenmotor mit beliebig konstruierbaren Verbrennungsräumen, dadurch gekennzeichnet, daß eine verkürzte, zweibogige Epizykloide ("Trochoide") in einem kleeblattähnlichen Gehäuse kreist und die Gaszufuhr von innen durch den Rotor statt­ findet.Rotary piston engine with combustion chambers of any design, characterized in that a shortened, double-arched epicycloid ("trochoid") circles in a cloverleaf-like housing and the gas supply takes place from the inside through the rotor.
DE19863641146 1986-12-02 1986-12-02 Rotary engine with combustion spaces of any design Withdrawn DE3641146A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863641146 DE3641146A1 (en) 1986-12-02 1986-12-02 Rotary engine with combustion spaces of any design

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863641146 DE3641146A1 (en) 1986-12-02 1986-12-02 Rotary engine with combustion spaces of any design

Publications (1)

Publication Number Publication Date
DE3641146A1 true DE3641146A1 (en) 1988-06-16

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DE19863641146 Withdrawn DE3641146A1 (en) 1986-12-02 1986-12-02 Rotary engine with combustion spaces of any design

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995012053A1 (en) * 1993-10-29 1995-05-04 Pieter Adolf De Geus Rotary piston machine (r.p.m)
EP1503035A1 (en) * 2003-07-28 2005-02-02 Jose Luis Fernandez Gonzalez Rotary thermal volumetric internal combustion engine (rotinmotor (rim))
CN104234828A (en) * 2014-09-04 2014-12-24 霍勇贤 Three-cylinder four-stroke rotor engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995012053A1 (en) * 1993-10-29 1995-05-04 Pieter Adolf De Geus Rotary piston machine (r.p.m)
EP1503035A1 (en) * 2003-07-28 2005-02-02 Jose Luis Fernandez Gonzalez Rotary thermal volumetric internal combustion engine (rotinmotor (rim))
CN104234828A (en) * 2014-09-04 2014-12-24 霍勇贤 Three-cylinder four-stroke rotor engine

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