EP4314531A1 - Hot-fluid machine - Google Patents

Hot-fluid machine

Info

Publication number
EP4314531A1
EP4314531A1 EP22717338.2A EP22717338A EP4314531A1 EP 4314531 A1 EP4314531 A1 EP 4314531A1 EP 22717338 A EP22717338 A EP 22717338A EP 4314531 A1 EP4314531 A1 EP 4314531A1
Authority
EP
European Patent Office
Prior art keywords
fluid
hot
fluid machine
cylinder
machine according
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.)
Pending
Application number
EP22717338.2A
Other languages
German (de)
French (fr)
Inventor
Fritz HOFBAUER
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
Publication of EP4314531A1 publication Critical patent/EP4314531A1/en
Pending legal-status Critical Current

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
    • F02G1/045—Controlling
    • F02G1/05—Controlling by varying the rate of flow or quantity of the working gas
    • 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
    • F02G1/044—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 having at least two working members, e.g. pistons, delivering power output
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers

Definitions

  • two displacement cylinder units (1, 2) interact in opposite directions with an expander (3) connected in between with a generator coupled thereto.
  • Cylinder and piston end faces are profiled, which increases the heat transfer surface and increases stability;
  • the expansion side of the cylinder aggregates is heated, the compression side is cooled.
  • the recuperators (18,19) in the displacement pistons (4,5) are heated on the expansion side and cooled on the compression side.
  • the fluid for example ethanol
  • the fluid is injected into the expansion chamber one (12) of the displacement cylinder one (1) by means of an injection system (9), evaporates, and the vapor flows through the expander (3), for example a scroll expander, in the Displacement cylinder two (2) condenses through the regenerator (17) into the compression chamber (15) and the fluid collects in the fluid pan (7).
  • the displacement pistons (4,5) are pivoted by means of a pivoting lever (8), fluid is pumped into the expansion space (13) of the displacement ; Cylinder two (2) injected, evaporated, the vapor flows through the expander (3), through the regenerator (16) of the displacement cylinder one (l) in its compression chamber (1.4), condensed and the fluid collected .sich in the. fluid pan(6).
  • the flow through the expander (3) is only possible in one direction by means of valves, for example reed valves.
  • the performance is further increased by charging with non-condensable gases. .
  • the displacer pistons are moved discontinuously, for example by means of a servomotor. Joints on the displacer cylinder and on the displacer piston prevent thermal bridges. ’ .
  • regenerators in the displacement pistons are constructed in multiple layers to achieve a temperature cascade.
  • the working fluid only flows through the recuperators in the displacement pistons in one direction due to the reed valves.
  • the seal between the expansion space and the compression space is achieved by means of a membrane seal (10), preferably a folded membrane, which is stretched between the cylinder wall and the displacement piston.
  • the heat transfer fluids are fed through the hollow pivoted lever (8) into the displacement pistons and discharged from them.
  • the heater (11) can be equipped with a burner or heated by solar heat or waste heat.
  • the coolers for the heat transfer fluid including the recuperators of the displacement pistons on the compression space side, are preferably designed as heaters, for example for space heating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a hot-fluid machine consisting of two displacement cylinder assemblies (1, 2) with an interposed expander (3) comprising a coupled generator, said assemblies cooperating in opposite directions. The expansion side is heated, and the compression side is cooled. The recuperators (18, 19) of the displacement pistons (4, 5) are also heated on the expansion side and are cooled on the compression side. The fluid is injected into the expansion chamber (12) of the first cylinder (1) and is evaporated, the steam flows through the expander (3) and the regenerator (17) of the second cylinder (2) and into the compression chamber (15) thereof and is condensed, and the fluid is collected in a fluid pan (7). The displacement pistons (4, 5) are pivoted by a pivoting lever (8), fluid is injected into the expansion chamber (13) of the second cylinder (2) and is evaporated, the steam flows through the expander (3) and the regenerator (16) and into the compression chamber (14) of the first cylinder (1) and is condensed, and the fluid is collected in a fluid pan (6). The displacement pistons are pivoted back and the process is repeated.

Description

Heissfluidmaschine hot fluid machine
Bisher bekannte Flachplatten-Heissluftmotoren,auch Flachplatten- Stirling genannt»konnten sich wegen der geringen Leistung nicht durchsetzen. Previously known flat-plate hot-air engines, also known as flat-plate Stirling, could not establish themselves because of their low power.
Hier setzt obige Erfindung an und es wird eine Maschine be- schrieben die vor allem durch den Phasenübergang des Fluids eine wesentlich höhere Leistung erreicht. This is where the above invention comes into play and a machine is described that achieves a significantly higher performance, primarily due to the phase transition of the fluid.
Dazu wird vorgeschlagen,daß.zwei Verdrängerzylinderaggregate(1,2) unter Zwischenschaltung eines Expanders(3) mit angekuppeltem Generator gegenläufig zusammenwirken. To this end, it is proposed that two displacement cylinder units (1, 2) interact in opposite directions with an expander (3) connected in between with a generator coupled thereto.
Zylinder-und Kolbenstirnseiten sind profiliert,dadurch wird die Wärmeübergangsfläche vergrössert und die Stabilität erhöht; Die Expansionsseite der Zylinderaggregate wird erhitzt,die Kompressionsseite wird gekühlt. Weiters werden die Rekuperatoren(18,19) in den Verdrängerkolben(4,5) auf der Expansionsseite erhitzt und auf der Kompressionsseite gekühlt. Cylinder and piston end faces are profiled, which increases the heat transfer surface and increases stability; The expansion side of the cylinder aggregates is heated, the compression side is cooled. Furthermore, the recuperators (18,19) in the displacement pistons (4,5) are heated on the expansion side and cooled on the compression side.
Das Fluid,Stirn Beispiel Ethanol,wird in den Expansionsraum eins (12) des Verdrängerzylinders eins(1) mittels Elnspritzan- lage(9) eingespritzt,verdampft,der Dampf strömt durch den Expander (3),zum Beispiel einen Scroll-Expander,im Verdränger- zylinder zwei (2) durch den Regenerator (17) in den Kompressions- raum (15) kondensiert und das Fluid sammelt sich in der Fluidwanne (7). Die Verdrängerkolben(4,5) werden mittels Schwenkhebel(8) umge- schwenkt,Fluid wird in den Expansionsraum (13) des Verdränger-; Zylinders zwei(2) eingespritzt,verdampft,der Dampf strömt durch den Expander(3),durch den Regenerator(16) des Verdränger- zylinders eins(l) in dessen Kompressionsraum(1.4),kondensiert und das Fluid sammelt .sich in der.Fluidwanne(6). The fluid, for example ethanol, is injected into the expansion chamber one (12) of the displacement cylinder one (1) by means of an injection system (9), evaporates, and the vapor flows through the expander (3), for example a scroll expander, in the Displacement cylinder two (2) condenses through the regenerator (17) into the compression chamber (15) and the fluid collects in the fluid pan (7). The displacement pistons (4,5) are pivoted by means of a pivoting lever (8), fluid is pumped into the expansion space (13) of the displacement ; Cylinder two (2) injected, evaporated, the vapor flows through the expander (3), through the regenerator (16) of the displacement cylinder one (l) in its compression chamber (1.4), condensed and the fluid collected .sich in the. fluid pan(6).
•Die Verdrängerkolben(4,5) werden zurückgeschwenkt und der . Vorgang wird wiederholt. •The displacement pistons (4.5) are swung back and the . process is repeated.
Der Durchfluss durch den Expander(3) wird mittels Ventilen, zum Beispiel Flatterventilen,nur in eine Richtung ermöglicht, Die Leistung wird durch Aufladung mit nicht kondensierbaren Gasen weiter gesteigert. . The flow through the expander (3) is only possible in one direction by means of valves, for example reed valves. The performance is further increased by charging with non-condensable gases. .
Die Verdrängerkolben werden diskontinuierlich bewegt,zum Bei- spiel mittels Stellmotor, Trennfugen am Verdrängerzylinder und am Verdrängerkolben ver- hindern Wärmebrücken. ’ . The displacer pistons are moved discontinuously, for example by means of a servomotor. Joints on the displacer cylinder and on the displacer piston prevent thermal bridges. ’ .
Die Regeneratoren in den Verdrängerkolben sind zur Erreichung einer Temperaturkaskade,mehrschichtig aufgebaut. The regenerators in the displacement pistons are constructed in multiple layers to achieve a temperature cascade.
Die Rekuperatoren in den Verdrängerkolben werden vom Arbeitsfluid, bedingt durch Flatterventile,nur in eine Richtung durchströmt. Die Abdichtung zwischen Expansionsraum und Kompressionsraum erfolgt mittels Membrandichtung(10).bevorzugt einer Falten- membran,welche zwischen Zylinderwand und Verdrängerkolben gespannt ist. : The working fluid only flows through the recuperators in the displacement pistons in one direction due to the reed valves. The seal between the expansion space and the compression space is achieved by means of a membrane seal (10), preferably a folded membrane, which is stretched between the cylinder wall and the displacement piston. :
DieWärmeträgerf lüssigkeiten werden durch die hohlen Schwenk- hebel(8) in die Verdrängerkolben zu und von diesen abgeführt. Der Erhitzer(11) kann mit einem Brenner ausgestattet oder durch Sonnenwärme oder Abwärme erhitzt werden. The heat transfer fluids are fed through the hollow pivoted lever (8) into the displacement pistons and discharged from them. The heater (11) can be equipped with a burner or heated by solar heat or waste heat.
Die Kühler für die Wärmeträgerflüssigkeitaua den kompressions- raumseitigen Rekuperatoren der Verdrängerkolben werden bevorzugt als Heizkörper,zum Beispiel zur Raumheizung,ausgeführt. The coolers for the heat transfer fluid, including the recuperators of the displacement pistons on the compression space side, are preferably designed as heaters, for example for space heating.

Claims

Patentansprüche patent claims
1.Heissfluidmaschine,bestehend aus Verdrängerzylinder(1,2), Verdrängerkolben(4,5)mit integriertem Regenerator(16,17)und Rekuperatoren(18,19),Erhitzer (11),Kühler,Expander(3)mit Generator , Fluideinspritzanlage(9),Fluidwanne(6 ,7)und Membrandichtung(10), dadurch gekennzeichnet dass jeder Verdrängerkolben(4,5)mittels mindestens zwei Schwenkhebel(8)bewegbar ist. 1. Hot fluid machine consisting of displacement cylinder (1,2), displacement piston (4,5) with integrated regenerator (16,17) and recuperators (18,19), heater (11), cooler, expander (3) with generator, fluid injection system (9), fluid pan (6, 7) and membrane seal (10), characterized in that each displacement piston (4, 5) can be moved by means of at least two pivoting levers (8).
2.Heissfluidmaschine nach Anspruch eins,dadurch gekennzeichnet dass die Verdrängerkolbenflächen(4,5)profiliert sind. 2. Hot-fluid machine according to claim one, characterized in that the displacement piston surfaces (4, 5) are profiled.
3.Heissfluidmaschinenach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass die Zylinderstirnflächen (1,2)profiliert sind. 3. Hot-fluid machine according to one of the preceding claims, characterized in that the cylinder faces (1, 2) are profiled.
4.Heissfluidmaschine nach einem der vorhergehenden Ansprüche,dadurch gekennzeichnet dass im Verdrängerkolben(4,5)ein mehrschichtiger Regenerator(16,17) integriert ist. 4. Hot-fluid machine according to one of the preceding claims, characterized in that a multi-layer regenerator (16, 17) is integrated in the displacement piston (4, 5).
5.Heissfluidmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass im Verdrängerkolben(4,5)mindestens ein Rekuperator(.18,19)integriert ist. 5. Hot-fluid machine according to one of the preceding claims, characterized in that at least one recuperator (.18, 19) is integrated in the displacement piston (4.5).
6.Heissfluidmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass zwischen Zylinderwand und Ver- drängerkolben(4,5) eine Membrandichtung(10)gespannt ist. 6. Hot-fluid machine according to one of the preceding claims, characterized in that a membrane seal (10) is clamped between the cylinder wall and displacement piston (4.5).
7.Heissfluidmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass die Membrandichtung (10)als Faltenmembran ausgeführt ist. 7. Hot-fluid machine according to one of the preceding claims, characterized in that the membrane seal (10) is designed as a folded membrane.
8.Heissfluidmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass die Schwenkhebel(8)hohl sind, 8. Hot-fluid machine according to one of the preceding claims, characterized in that the pivoting levers (8) are hollow,
9Heissfluidmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass eine Einspritzung von Fluid erfolgt. 9. Hot-fluid machine according to one of the preceding claims, characterized in that fluid is injected.
10.Heissfluidmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass das Arbeitsfluid die Rekuperatoren (18,19)nur in eine Richtung durchstromt . 10. Hot-fluid machine according to one of the preceding claims, characterized in that the working fluid flows through the recuperators (18, 19) in one direction only.
EP22717338.2A 2021-03-26 2022-03-25 Hot-fluid machine Pending EP4314531A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA66/2021A AT524890B1 (en) 2021-03-26 2021-03-26 hot fluid machine
PCT/AT2022/000002 WO2022198246A1 (en) 2021-03-26 2022-03-25 Hot-fluid machine

Publications (1)

Publication Number Publication Date
EP4314531A1 true EP4314531A1 (en) 2024-02-07

Family

ID=81326788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22717338.2A Pending EP4314531A1 (en) 2021-03-26 2022-03-25 Hot-fluid machine

Country Status (3)

Country Link
EP (1) EP4314531A1 (en)
AT (1) AT524890B1 (en)
WO (1) WO2022198246A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB769368A (en) * 1955-03-30 1957-03-06 James Windrum Improvements in hot gas reciprocating engines
JPH0493559A (en) * 1990-08-10 1992-03-26 Naoji Isshiki Reverse stirling refrigeration machine having circulating oil
AT505645B1 (en) * 2007-09-11 2009-05-15 Schlager Leopold HEAT ENGINE
DE102008048639B4 (en) * 2008-09-24 2010-10-07 WÜRZ, Raimund Heat engine and method of operating the same
DE102016122156B4 (en) * 2016-08-10 2018-06-14 Yves-Michael Kiffner Heat cycle machine
DE202020000902U1 (en) * 2020-02-25 2020-04-06 Jens Bernd Lindner Stirling engine, designed as a large-volume flat plate double Stirling with only one crankshaft in a gas-pressurized housing

Also Published As

Publication number Publication date
WO2022198246A1 (en) 2022-09-29
AT524890A1 (en) 2022-10-15
AT524890B1 (en) 2023-01-15

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