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DE4307211A1 - Rotary displacement Stirling engine - has rotating compressor, mounted on crank shaft, and working piston with rear pressure charging - Google Patents

Rotary displacement Stirling engine - has rotating compressor, mounted on crank shaft, and working piston with rear pressure charging

Info

Publication number
DE4307211A1
DE4307211A1 DE19934307211 DE4307211A DE4307211A1 DE 4307211 A1 DE4307211 A1 DE 4307211A1 DE 19934307211 DE19934307211 DE 19934307211 DE 4307211 A DE4307211 A DE 4307211A DE 4307211 A1 DE4307211 A1 DE 4307211A1
Authority
DE
Germany
Prior art keywords
protection
cylinder
motor according
displacer
working
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Withdrawn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
DE19934307211
Other languages
German (de)
Inventor
Dieter Schager
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 DE19934307211 priority Critical patent/DE4307211A1/en
Publication of DE4307211A1 publication Critical patent/DE4307211A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00Hot gas positive-displacement engine plants
    • F02G1/04Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00Constructional features
    • F02G2270/85Crankshafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The Stirling motor has a displacement compressor (2), which rotates and does not oscillate. The compressor is single- or multi-sectional, and is mounted directly on the crankshaft (6) so that it does not require a control mechanism.The compressor is semi-circular, symmetrical or asymmetrical, to create space for the working medium. It is arranged so that it acts as a flywheel. The compressor cylinder (3) is longitudinally divided into two semi-shells, which are pressure-proof, and relatively thermally isolated. The working cylinder is mounted directly on the compressor cylinder. The working piston (4) is pressure charged from the rear and not from the front. USE/ADVANTAGE - for stationary pumps, generators, etc,with low vibration and no sealing problems.

Description

Der Rotationsverdränger-Stirlingmotor ist im Grunde ein Heißluftmotor. Er arbeitet nach dem von R. Stirling bereits im Jahre 1816 erfundenen und nach ihm benannten Prinzip. Motore nach diesem Arbeitsprinzip sind heute in viel­ fältigen Ausführungen, Größen und Anwendungen bekannt, und ihre Funktions­ weise gehört heute wohl zum technischen Allgemeinwissen.The rotary displacement Stirling engine is basically a hot air engine. He works after and invented by R. Stirling as early as 1816 principle named after him. Engines based on this working principle are in a lot today known designs, sizes and applications, and their functionalities wise is now part of general technical knowledge.

Die Neuerung besteht nun im Wesentlichen darin, daß der Verdränger nicht mehr längs oszilliert sondern radial rotiert. Hierdurch werden mehrere Vorteile erzielt und einige Nachteile vermieden. So benötigt der Motor kein Schwung­ rad mehr. Er hat zwei freie Wellenenden und läuft in jeder Raumlage. Der ro­ tierende Verdränger läßt sich sehr gut auswuchten, wodurch ein sehr leiser und vibrationsarmer Lauf erzielt wird. Die Bauweise ist fast völlig geschlos­ sen, wodurch die sonst oft sehr lästigen Dichtungsprobleme entfallen, und der Motor aufgeladen, d. h. mit höherem Innendruck betrieben werden kann. Es sind nur noch zwei hin- und hergehende Maschinenteile vorhanden (Arbeitskolben und Pleuel), so daß durch diese sehr vereinfachte Mechanik bereits bei mitt­ leren Temperatur-Differenzen recht hohe Drehzahlen erreicht werden. Durch ein­ fache Verdrehung des Verdrängers auf der Welle ist Rechts- wie Linkslauf glei­ chermaßen möglich.The innovation now essentially consists in the fact that the displacer is no longer oscillates longitudinally but rotates radially. This has several advantages achieved and avoided some disadvantages. So the engine does not need momentum bike more. It has two free shaft ends and runs in any position. The ro ting displacer can be balanced very well, which makes it very quiet and low vibration running is achieved. The construction is almost completely closed sen, which eliminates the otherwise very annoying sealing problems, and the Engine charged, i. H. can be operated with higher internal pressure. There are only two reciprocating machine parts are left (working piston and connecting rods), so that this very simplified mechanics already at mitt fairly high speed differences can be achieved. By a The twist of the displacer on the shaft is clockwise and counterclockwise possible.

Der Rotationsverdränger-Stirlingmotor eignet sich grundsätzlich für alle Wär­ mequellen und Einsatzgebiete, die auch seither schon für Heißluftmotore in Frage kamen. Besonders würde er sich für den stationären Betrieb von Pumpen, el. Generatoren und Kältemaschinen im Solarbetrieb eignen. Auch könnte man sich ihn sehr gut in einer Wärme-Kraft-Kopplung vorstellen, wobei eine zwei­ te Verdrängeranordnung im Gegentakt auf den Arbeitskolben wirken könnte.The rotary displacement Stirling engine is basically suitable for all types of heat sources and areas of application that have been used for hot air motors in Question came. He would particularly like the stationary operation of pumps, electric generators and chillers in solar operation. You could too imagine it very well in a cogeneration, one being two te displacer arrangement could act on the working piston in push-pull.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is shown in the drawing and is explained in more detail below.

Der Motor besteht aus einem länglichen, in Längsrichtung in zwei gleiche Halbschalen geteilten Blechzylinder 1 (Verdrängerzylinder). Die beiden Halb­ schalen sind über zwei gut dichtende aber thermisch schlecht leitende Brüc­ ken miteinander verbunden. Die untere Halbschale stellt die heiße Seite, die obere Halbschale die kalte Seite dar. An den Stirnseiten ist der Verdränger­ zylinder 1 mit ebenfalls schlecht wärmeleitenden Deckeln verschlossen, die zugleich die Lagerschilde 5 für die zentrisch den Verdrängerzylinder 1 durch­ ziehende Kurbelwelle 6 bilden. In der Mitte der Kurbelwelle 6 befindet sich die Kurbel für den Arbeitskolben 4, dessen Zylinder 3 in der Mitte der kalten Verdrängerhalbschale senkrecht angeordnet ist.The motor consists of an elongated sheet metal cylinder 1 (displacer cylinder ) divided in the longitudinal direction into two equal half-shells. The two half-shells are connected to each other via two good-sealing but thermally poorly conductive bridges. The lower half-shell, the hot side, the upper half-shell constitutes the cold side. On the end faces of the displacer cylinder 1 also poor heat conductive lids is closed, at the same time 5 constitute the end shields for the centric the displacer cylinder 1 by withdrawing the crankshaft 6. In the center of the crankshaft 6 is the crank for the working piston 4 , the cylinder 3 of which is arranged vertically in the middle of the cold displacement half-shell.

Der aus zwei Teilen bestehende zylinderförmige Verdränger 2, ist auf der Kur­ belwelle 6 beiderseits der Kurbel verstellbar aufgezogen (Drehrichtung). Er füllt bis auf einen sehr kleinen Luftspalt am Umfang und an den Stirnseiten den gesamten Verdrängerzylinder 1 aus. Jedoch entsteht durch das Zurücksetzen des Verdrängers 2 auf dem halben Umfang die Hälfte eines Hohlzylinders, in dem sich das Arbeitsmedium (Luft, H2, He o. a.) befindet.The two-part cylindrical displacer 2 , is adjustable on the cure belwelle 6 on both sides of the crank (direction of rotation). It fills the entire displacement cylinder 1 except for a very small air gap on the circumference and on the end faces. However, by resetting the displacer 2 on half the circumference, half of a hollow cylinder in which the working medium (air, H 2 , He or the like) is located.

Beim Betrieb wird nun dieser gasgefüllte halbe Hohlzylinder im Kreislauf ab­ wechselnd an der kalten und heißen Seite des Verdrängerzylinders 1 vorbeige­ schoben. Die durch die rhythmischen Temperaturänderungen auftretenden Druck­ schwankungen des Arbeitsmediums werden nun auf den Arbeitskolben 4 übertra­ gen. Dieser ist ein konventioneller Hubkolben, der aber jetzt im Gegensatz zu seitherigen Konstruktionen nicht von vorn sondern von hinten druckbeaufschlagt wird, d. h., daß bei einem Arbeitshub der Kolben 4 über das Kugelgelenk 10 und das Pleuel 9 nicht auf die Kurbel drückt sondern an ihr zieht.During operation, this gas-filled half hollow cylinder is pushed past the alternating cold and hot side of the displacement cylinder 1 in the circuit. The pressure fluctuations in the working medium caused by the rhythmic changes in temperature are now transferred to the working piston 4. This is a conventional piston, but in contrast to previous designs, it is now not pressurized from the front but from the rear, ie that during a working stroke the piston 4 on the ball joint 10 and the connecting rod 9 does not press on the crank but pulls on it.

Durch die Lüftungsschraube 7 wird ein Druckausgleich im Verdrängerzylinder 1 erreicht. An den beiden Wellenenden 8 kann die mechanische Energie abgenom­ men werden.A pressure equalization in the displacement cylinder 1 is achieved by the ventilation screw 7. At the two shaft ends 8 , the mechanical energy can be removed.

Claims (7)

1. Rotationsverdränger-Stirlingmotor dadurch gekennzeichnet, daß der Ver­ dränger (2) nicht wie üblich oszilliert sondern rotiert.1. Rotational displacement Stirling engine characterized in that the United displacer ( 2 ) does not oscillate as usual but rotates. 2. Motor nach Schutzanspruch 1 dadurch gekennzeichnet, daß der Verdränger (2) ein- oder mehrteilig direkt auf der Kurbelwelle (6) aufgezogen ist und so­ mit keine weitere Steuermechanik benötigt.2. Motor according to protection claim 1, characterized in that the displacer ( 2 ) is mounted in one or more parts directly on the crankshaft ( 6 ) and thus requires no further control mechanism. 3. Motor nach Schutzanspruch 1-2 dadurch gekennzeichnet, daß der Verdränger (2) eine mehr oder weniger halbkreisförmige symmetrische oder asymmetri­ sche Ausarbeitung hat, um Raum für das Arbeitsmedium (Luft, H, He o. a.) zu schaffen.3. Motor according to protection claim 1-2, characterized in that the displacer ( 2 ) has a more or less semicircular symmetrical or asymmetrical elaboration to create space for the working medium (air, H, He oa). 4. Motor nach Schutzanspruch 1-3 dadurch gekennzeichnet, daß der Verdränger (2) in seiner Auswuchtung und Masse so ausgelegt ist, daß er die Aufgabe des Schwungrades übernimmt.4. Motor according to protection claims 1-3, characterized in that the displacer ( 2 ) is designed in its balance and mass so that it takes over the task of the flywheel. 5. Motor nach Schutzanspruch 1-4 dadurch gekennzeichnet, daß der Verdrän­ gerzylinder (1) längs in zwei Halbschalen geteilt ist, die zwar druckdicht aber andererseits gut thermisch gegeneinander isoliert sind.5. Motor according to protection claim 1-4, characterized in that the displacement cylinder ( 1 ) is divided lengthwise into two half-shells, which are pressure-tight but on the other hand well thermally insulated from one another. 6. Motor nach Schutzanspruch 1-5 dadurch gekennzeichnet, daß der Arbeits­ zylinder (3) direkt auf dem Verdrängerzylinder (1) angeordnet ist, und der Arbeitskolben (4) daher von hinten und nicht wie allgemein üblich von vorne druckbeaufschlagt wird.6. Motor according to protection claim 1-5, characterized in that the working cylinder ( 3 ) is arranged directly on the displacement cylinder ( 1 ), and the working piston ( 4 ) is therefore pressurized from behind and not, as is customary, from the front. 7. Motor nach Schutzanspruch 1-6 dadurch gekennzeichnet, daß eine zweite Verdrängeranordnung entsprechend 1, 2, 5, 6, 7, 8, 9, und 10 im Gegen­ takt auf den Arbeitskolben (4) wirkt, und der Arbeitszylinder (3) wesentli­ ches Verbindungselement beider Verdrängerzylinder (1) ist, so daß eine vollkommene Kapselung des Systems erreicht wird (Aufladbarkeit).7. Motor according to protection claims 1-6, characterized in that a second displacement arrangement corresponding to 1, 2, 5, 6, 7, 8, 9, and 10 in counteract on the working piston ( 4 ), and the working cylinder ( 3 ) is essential Ches connecting element of both displacement cylinder ( 1 ), so that a complete encapsulation of the system is achieved (chargeability).
DE19934307211 1993-03-08 1993-03-08 Rotary displacement Stirling engine - has rotating compressor, mounted on crank shaft, and working piston with rear pressure charging Withdrawn DE4307211A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934307211 DE4307211A1 (en) 1993-03-08 1993-03-08 Rotary displacement Stirling engine - has rotating compressor, mounted on crank shaft, and working piston with rear pressure charging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934307211 DE4307211A1 (en) 1993-03-08 1993-03-08 Rotary displacement Stirling engine - has rotating compressor, mounted on crank shaft, and working piston with rear pressure charging

Publications (1)

Publication Number Publication Date
DE4307211A1 true DE4307211A1 (en) 1993-08-26

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Family Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924762A1 (en) * 2007-12-05 2009-06-12 Pascot Philippe Thermodynamic machine e.g. heat pump, has displacers successively passing chambers in front of heat exchanging surfaces, where each chamber contains constant quantity of working gas that is totally stable with respect to displacers
DE102008004075A1 (en) * 2008-01-12 2009-07-30 Suer, Peter, Dipl.-Ing (FH) Stirling engine
DE102008027158A1 (en) 2008-06-06 2009-12-10 Maiß, Martin Stirling engine, particularly hot-air engines for converting heat into mechanical work, has rotating displacement body, which has multiple extensions for working medium to remove imbalance, and to reduce speed of displacement body
DE102009017493A1 (en) 2009-04-16 2011-01-20 Verplancke, Philippe, Dr. Heat engine
DE102010019611A1 (en) 2010-05-06 2011-11-17 Gangolf Jobb Transducer e.g. thermoelectric transducer, for converting temperature difference into pressure difference in stirling engine of ship, has revolving door mechanism precluding direct flow of working fluid between entry port and exit orifice
WO2013135289A1 (en) * 2012-03-14 2013-09-19 Unterreitmeier, Christian Energy converter with constant working volume

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924762A1 (en) * 2007-12-05 2009-06-12 Pascot Philippe Thermodynamic machine e.g. heat pump, has displacers successively passing chambers in front of heat exchanging surfaces, where each chamber contains constant quantity of working gas that is totally stable with respect to displacers
WO2009103871A3 (en) * 2007-12-05 2009-11-05 Pascot, Philippe Thermodynamic machine, particularly of the carnot and/or stirling type
DE102008004075A1 (en) * 2008-01-12 2009-07-30 Suer, Peter, Dipl.-Ing (FH) Stirling engine
DE102008004075B4 (en) * 2008-01-12 2013-12-24 Peter Suer Stirling engine
DE102008027158A1 (en) 2008-06-06 2009-12-10 Maiß, Martin Stirling engine, particularly hot-air engines for converting heat into mechanical work, has rotating displacement body, which has multiple extensions for working medium to remove imbalance, and to reduce speed of displacement body
DE102009017493A1 (en) 2009-04-16 2011-01-20 Verplancke, Philippe, Dr. Heat engine
DE102009017493B4 (en) 2009-04-16 2014-08-21 Philippe Verplancke Heat engine
DE102010019611A1 (en) 2010-05-06 2011-11-17 Gangolf Jobb Transducer e.g. thermoelectric transducer, for converting temperature difference into pressure difference in stirling engine of ship, has revolving door mechanism precluding direct flow of working fluid between entry port and exit orifice
WO2013135289A1 (en) * 2012-03-14 2013-09-19 Unterreitmeier, Christian Energy converter with constant working volume

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Legal Events

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OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8122 Nonbinding interest in granting licenses declared
8110 Request for examination paragraph 44
8130 Withdrawal