WO2009082997A2 - Régénérateur pour circulation du gaz de travail non symétrique du cylindre dans un moteur stirling - Google Patents

Régénérateur pour circulation du gaz de travail non symétrique du cylindre dans un moteur stirling Download PDF

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Publication number
WO2009082997A2
WO2009082997A2 PCT/DE2008/002113 DE2008002113W WO2009082997A2 WO 2009082997 A2 WO2009082997 A2 WO 2009082997A2 DE 2008002113 W DE2008002113 W DE 2008002113W WO 2009082997 A2 WO2009082997 A2 WO 2009082997A2
Authority
WO
WIPO (PCT)
Prior art keywords
regenerator
working gas
holes
longitudinal channels
cylinder
Prior art date
Application number
PCT/DE2008/002113
Other languages
German (de)
English (en)
Other versions
WO2009082997A3 (fr
WO2009082997A4 (fr
Inventor
Lutz Pasemann
Original Assignee
Lutz Pasemann
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 Lutz Pasemann filed Critical Lutz Pasemann
Priority to DE112008003748T priority Critical patent/DE112008003748A5/de
Priority to EP08869049A priority patent/EP2288801A2/fr
Publication of WO2009082997A2 publication Critical patent/WO2009082997A2/fr
Publication of WO2009082997A3 publication Critical patent/WO2009082997A3/fr
Publication of WO2009082997A4 publication Critical patent/WO2009082997A4/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot 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
    • F02G1/053—Component parts or details
    • F02G1/057—Regenerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2257/00—Regenerators

Definitions

  • the invention relates to a regenerator for short-term storage and Wiederabgabe the heat of a gas flowing alternately in two directions in a working according to the Stiriingkar heat engine. It is known that in a Stiriingmotor regenerators are used, which are flowed through by the working gas, which is pushed back and forth between a hot and a cold room. By means of a corresponding mechanism, the volume of the working gas is thereby changed by expansion and compression in such a way that mechanical energy is generated. Heat is removed from the hot side by this process and heat is supplied to the cold side, which is compensated on the one hand by external heat input on the hot side and on the other hand by cooling on the cold side.
  • the invention relates to such a heat storage for the working gas of a Stiriingkar operated heat engine, in which, for example, in the case of a gamma-type Stiriingmotors in a known manner controlled by a crank gear reciprocating displacer the shifting operations of hot after cold and vice versa, wherein the flow guidance of the working gas is designed so that the gas must flow through the annular space around the displacer regenerator.
  • a branching connecting channel to a working piston with its oscillating motion, which coincides with the
  • Displacer piston is tuned, solely for expansion and compression of the working gas in the machine ensures.
  • the main task of the regenerator is to give as much as possible in the working gas after leaving the heater entrained heat to the material of the regenerator before the working gas enters the cooler. If, in the next step of the work cycle, the working gas cooled in the cooler flows back, the heat previously stored in the regenerator material should again be as completely as possible released to the working gas before it enters the heater. This function results in a permanently hot side and a permanently cold side of the regenerator. As a result, heat conduction through the regenerator material from the hot to the cold side is to be prevented as much as possible. At the same time, it is necessary to keep the resistance to the flowing working gas by the regenerator structure as low as possible.
  • regenerator structures which consist for example of steel wool or the like loose webs. These only partially meet the requirements;
  • the disadvantage here is in particular the not exactly reproducible homogeneous density and low mechanical stability, so that the structures can change significantly by the acting flow forces during a longer operation.
  • the deformability of the material not only results in the formation of preferred flow paths through the structure during operation, which reduce efficiency, but also to break up fine fibers which subsequently spread through all the gas paths and at the rubbing and sealing points of the engine severely damage the engine life causing damage.
  • regenerator structures for example superimposed fine wire mesh, while avoiding some of the disadvantages described above, but they can be produced only with great effort and to fix in the correct position.
  • Other specially developed special structures are also characterized by high prices, since they are not a mass product. In the commercial exploitation of the Stiriing technique, however, the cost argument plays an important role.
  • a further embodiment consists in a cylindrical Ringregenerator- element having a continuous from one end face to another material structure, which is designed so that the working gas (eg., Air), the regenerator from one end face to the other in the desired Flowed through way.
  • the working gas eg., Air
  • the regenerator from one end face to the other in the desired Flowed through way.
  • a Gamma-type Stiflingmotor can form the inner Zylinde ⁇ nantel
  • a suitable regenerator structure is achieved, for example, by a large number of tubes and rods that fill the annular space and arranged in the direction of flow, or by winding band-shaped material which is wound with wire (according to DE 931 015) or by winding threads, a fabric band or perforated sheet (according to DE 38 12427 A1).
  • a cylindrical annular regenerator is known, the structure of which has an end face of the annular body to the other leading longitudinal channels, which are formed from a spiral winding two superimposed films, of which one corrugated and the other is flat.
  • a gamma-type Stiriing engine for example, it depends on how the displacement cylinder and cylinder are arranged to each other to determine the azimuthal distribution of the flow-through longitudinal channels of the regenerator, the criterion being that the engine efficiency is optimized.
  • the inlet and outlet openings of those longitudinal channels, which are not to be flowed through, are closed at the two end faces of the regenerator by suitable glue or solder.
  • Another embodiment of the solution according to the invention consists in positioning on each end face of the regenerator a perforated ring element made of high-temperature-resistant material (eg stainless steel) above the channel inlet or outlet openings in such a way that the working gas only through the holes in the not covered by the ring member, parallel to the longitudinal axis of the cylindrical regenerator extending longitudinal channels can pass, wherein the holes in the ring element in their distribution and size are designed so that arise for the working gas flowing through the regenerator Strömungsvorzugsraumen. Fig.
  • FIG. 1 shows a cross section through a Stirling engine in the so-called gamma-type construction.
  • a crankshaft 2 is mounted, which moves via the connecting rods 3 and 4, the displacer 5 and the working piston 6 back and forth.
  • the working gas flows from the hot chamber 12 through the heater head 7 and its outer heat-receiving tube 8, and further through the regenerator 16 mounted around the displacer 5, which consists of the regenerative element 9 having its specific structure and the ring member 14 of the present invention
  • Regenerator input and output forms and regulates the working gas flow through the regenerative element 9.
  • the working gas continues to flow through the annular cooler element 10, whose inner circumferential surface forms the cylinder jacket surface of the cold chamber 11 of the displacer in which the displacer 5 runs, and from there via a connecting channel 13 branched off at the bottom of the cold chamber 11 into the working cylinder with the working piston 6.
  • a connecting channel 13 branched off at the bottom of the cold chamber 11 into the working cylinder with the working piston 6.
  • Fig. 2 shows an annular, cylindrical regenerator with a determined by longitudinal channels Regenerator Modell 9 and the invention, the working gas flow regulating, provided with holes ring elements 14 as separately mountable and replaceable modules, wherein the regeneratively effective structure 9 between an outer cylinder 15 and an inner cylinder 16 is embedded.
  • Fig. 3 shows the end view of a regenerator structure, which is formed from numerous tubes arranged in the flow direction. The working gas flows both internally through the tubes and through the interstices formed at the colliding outer diameters of the tubes.
  • Fig. 4. shows the end view of a regenerator structure formed of numerous wires arranged in the flow direction or thin rods. The working gas flows through the interstices formed at the butting outer diameters of the rods.
  • Fig. 5 shows the end view of a regenerator structure, which is formed from the winding of a respective corrugated and a flat film in superimposed numerous layers. The working gas flows through the longitudinal channels formed thereby.
  • Fig. 6 shows the end-face view of a ring member 14 according to the invention, the holes through which the working gas can flow, are exemplary holes with the same diameter.
  • the flow cross-section is on the side of the regenerator, which is opposite to the branching connection channel 13 of FIG. 1, increased by the fact that the holes are mounted closer together.
  • Fig. 7 shows the ring element 14 according to the invention in cross section. From one side to the other lead by way of example bores through which the working gas can flow into the channels of the regenerator 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Accessories For Mixers (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un régénérateur pour le gaz de travail d'une machine thermique fonctionnant suivant le principe Stirling, le régénérateur étant configuré en tant que corps annulaire de forme cylindrique, dont la structure présente des conduits longitudinaux s'étendant d'une face du corps annulaire à l'autre, caractérisé en ce que les entrées et les sorties d'un nombre sélectionné des conduits longitudinaux sont fermées sur les faces du régénérateur, de telle façon qu'une distribution non symétrique du cylindre des conduits longitudinaux parcourus par le courant de gaz de travail soit obtenue par rapport à l'axe longitudinal du régénérateur.
PCT/DE2008/002113 2007-12-28 2008-12-22 Régénérateur pour circulation du gaz de travail non symétrique du cylindre dans un moteur stirling WO2009082997A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112008003748T DE112008003748A5 (de) 2007-12-28 2008-12-22 Regenerator für nicht-zylindersymmetrische Arbeitsgasströmung in einem Stirlingmotor
EP08869049A EP2288801A2 (fr) 2007-12-28 2008-12-22 Régénérateur pour circulation du gaz de travail non symétrique du cylindre dans un moteur stirling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007018211.2 2007-12-28
DE200720018211 DE202007018211U1 (de) 2007-12-28 2007-12-28 Regenerator für nicht-zylindersymmetrische Arbeitsgasströmung in einem Stirlingmotor

Publications (3)

Publication Number Publication Date
WO2009082997A2 true WO2009082997A2 (fr) 2009-07-09
WO2009082997A3 WO2009082997A3 (fr) 2009-10-29
WO2009082997A4 WO2009082997A4 (fr) 2009-12-30

Family

ID=39155198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/002113 WO2009082997A2 (fr) 2007-12-28 2008-12-22 Régénérateur pour circulation du gaz de travail non symétrique du cylindre dans un moteur stirling

Country Status (3)

Country Link
EP (1) EP2288801A2 (fr)
DE (2) DE202007018211U1 (fr)
WO (1) WO2009082997A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018206412A1 (fr) 2017-05-09 2018-11-15 Frauscher Holding Gmbh Machine à gaz chaud à piston étagé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009017731U1 (de) 2009-11-15 2010-05-12 Quasar Engineering Gmbh Segmentierter Regenerator für das Arbeitsgas eines Stirlingmotors in Sandwich Bauweise

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1385929A (fr) * 1964-03-10 1965-01-15 Philips Nv Machine à pistons à gaz chaud
JPS61237874A (ja) * 1985-04-15 1986-10-23 Mitsubishi Electric Corp デイスプレ−サ形スタ−リング機関の熱交換器
JPH01240759A (ja) * 1988-03-22 1989-09-26 Toshiba Corp スターリングエンジン用再生器
JPH06249066A (ja) * 1993-02-24 1994-09-06 Aisin Seiki Co Ltd スターリング機関用蓄熱器
US6131644A (en) * 1998-03-31 2000-10-17 Advanced Mobile Telecommunication Technology Inc. Heat exchanger and method of producing the same
DE10234401A1 (de) * 2002-07-29 2004-02-12 Epas Ressourcenschonende Produkte Gmbh Regenerator für das Arbeitsgas eines Stirlingmotors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1385929A (fr) * 1964-03-10 1965-01-15 Philips Nv Machine à pistons à gaz chaud
JPS61237874A (ja) * 1985-04-15 1986-10-23 Mitsubishi Electric Corp デイスプレ−サ形スタ−リング機関の熱交換器
JPH01240759A (ja) * 1988-03-22 1989-09-26 Toshiba Corp スターリングエンジン用再生器
JPH06249066A (ja) * 1993-02-24 1994-09-06 Aisin Seiki Co Ltd スターリング機関用蓄熱器
US6131644A (en) * 1998-03-31 2000-10-17 Advanced Mobile Telecommunication Technology Inc. Heat exchanger and method of producing the same
DE10234401A1 (de) * 2002-07-29 2004-02-12 Epas Ressourcenschonende Produkte Gmbh Regenerator für das Arbeitsgas eines Stirlingmotors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018206412A1 (fr) 2017-05-09 2018-11-15 Frauscher Holding Gmbh Machine à gaz chaud à piston étagé
DE102017109967B4 (de) 2017-05-09 2018-11-29 Frauscher Holding Gmbh Stirlingmaschine mit stufenkolben
DE102017109967B9 (de) 2017-05-09 2020-05-07 Frauscher Holding Gmbh Stirlingmaschine mit stufenkolben
US11215139B2 (en) 2017-05-09 2022-01-04 Frauscher Holding Gmbh Hot gas engine having a step piston
US11725607B2 (en) 2017-05-09 2023-08-15 Frauscher Holding Gmbh Hot air engine having a step piston
EP4273393A2 (fr) 2017-05-09 2023-11-08 Frauscher Holding GmbH Machine à gaz chaud à piston étagé

Also Published As

Publication number Publication date
EP2288801A2 (fr) 2011-03-02
DE112008003748A5 (de) 2010-11-25
WO2009082997A3 (fr) 2009-10-29
WO2009082997A4 (fr) 2009-12-30
DE202007018211U1 (de) 2008-03-06

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