EP3301287A1 - Moteur à cycle fermé de type stirling à piston flottant à double action pourvu de générateur linéaire - Google Patents

Moteur à cycle fermé de type stirling à piston flottant à double action pourvu de générateur linéaire Download PDF

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Publication number
EP3301287A1
EP3301287A1 EP17187947.1A EP17187947A EP3301287A1 EP 3301287 A1 EP3301287 A1 EP 3301287A1 EP 17187947 A EP17187947 A EP 17187947A EP 3301287 A1 EP3301287 A1 EP 3301287A1
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EP
European Patent Office
Prior art keywords
section
working
pressure housing
stirling
regenerators
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Withdrawn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
EP17187947.1A
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German (de)
English (en)
Inventor
Daniel Bertschi
Jörg Mafli
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.)
Smart Conversion GmbH
Original Assignee
MAFLI JOERG
Mafli Jorg
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 MAFLI JOERG, Mafli Jorg filed Critical MAFLI JOERG
Publication of EP3301287A1 publication Critical patent/EP3301287A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • F02G1/0435—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 the engine being of the free piston type
    • 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
    • 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
    • F02G1/053—Component parts or details
    • F02G1/0535—Seals or sealing arrangements
    • 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
    • F02G2243/02—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder
    • 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
    • F02G2243/02—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder
    • F02G2243/20—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder each having a single free piston, e.g. "Beale engines"
    • 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
    • F02G2280/00—Output delivery
    • F02G2280/10—Linear generators

Definitions

  • the invention relates to a Stirling engine according to the preamble of patent claim 1.
  • the Stirling engine or free piston Stirling cycle machine comprising a housing with a linear generator which separates the two with working gas filled chambers in the middle.
  • the invention converts thermal energy into electrical energy.
  • the name Stirling machine In the text is used for simplicity, instead of the free-piston circulating machine, the name Stirling machine.
  • Stirling cycle refrigerators are used to convert mechanical energy into pumping heat energy from a cooler temperature to a warmer temperature. These refrigerators are often connected to a linear motor or alternator.
  • a Stirling engine may drive a linear alternator to generate electrical power.
  • a linear alternator can also drive a Stirling engine to produce refrigeration.
  • a hermetically sealed housing is very important.
  • the efficiency of the Stirling engine is dependent on the highest possible output pressure of the working gas.
  • the Stirling engine described in the above patent is considered to be the closest prior art. Due to the complex internal structure of the document DE 10 2008 041 076 described Stirling engine, the technology must be enclosed in a pressure-resistant, parent housing.
  • This pressure-resistant housing developed specifically for this Stirling engine, represents a high cost factor because it is exposed to a double load due to the internal gas pressure and the external heat energy of about 500 ° C. Therefore, the use of high quality and therefore expensive materials is mandatory, which additionally complicate the weight of the Stirling engine.
  • the aim of the inventive Stirling engine was therefore to introduce the construction in a simple geometric shape, which withstands the pressures occurring and is available in commercially available dimensions and shapes.
  • the Stirling engine according to the invention can dispense with a spring or the like, since pressure forces are alternately generated by heating the working gas on both sides of the working piston or linear generator. Therefore, the Stirling engine according to the invention is also referred to as double-acting.
  • the double action of the Stirling engine causes a much more harmonious run, as the movement of the working piston from one side to the other done in the same way and no differences occur in the acceleration and deceleration. On a vibration compensation as in the document DE10 2008 041 076 can therefore be dispensed with.
  • connection of the working piston with the displacement piston by means of degree of inertia has the disadvantage that the displacement piston is significantly slowed down when changing direction, in order to accelerate slowly thereafter. This slowdown reduces the efficiency of the Stirling engine.
  • the displacer can not be used independently of the working piston for power control.
  • connection of the displacer piston and the working piston by means of the degree of inertia requires moving mechanical components in the form of e.g. Ball bearings are subjected to mechanical and thermal stresses and make the production more expensive. Also, these components are maintenance intensive and therefore have a negative impact on the maintenance costs.
  • the present invention has the object to overcome the above-mentioned disadvantages and to develop a Stirling engine, which has an increased efficiency and achieves an increased efficiency at already low temperature differences, so that can be dispensed with high working gas pressures and working gas temperatures.
  • the aim of the inventive Stirling engine is not to achieve a very high output power, but to be able to use low temperature differences below 100 ° C. As a result, the building materials used are not exposed to high temperatures, which leads to lower production costs and to an extension of the service life.
  • the displacement piston can be moved independently of the working piston. This movement takes place by means of an electromagnetic field, which is generated by a coil outside the housing and by the change of polarities forces the displacer to a linear movement in the desired cycle.
  • the Stirling engine according to the invention thus opens up completely new areas of application and can finally emancipate itself from fuels such as wood, oil or gas.
  • existing Stirling engines are still heated by conventional fuels to achieve the necessary temperature difference. This deteriorates the CO2 balance and leads to further particulate matter pollution by the combustion.
  • the Stirling engine according to the invention is suitable, since part of the waste heat energy can be exploited.
  • FIGS. 1 to 5 An embodiment of a free-piston Stirling cycle machine 0 or a Stirling engine 0 is in the FIGS. 1 to 5 shown.
  • the Stirling engine 0 has three sections divided into section I, section II and section II ', all three sections penetrating a hollow cylindrical pressure housing 3 which is hermetically sealed and has closed end surfaces.
  • the pressure housing 3 holds in the interior of the section I, a linear generator 1, which consists of a working piston 11 'with a plurality of integrated permanent magnets and is sealed with piston sealing rings 13', and a stator with windings 12 '.
  • the working piston 11 ' is the rotor of the linear generator 1.
  • the stator or the windings 12' surround the working piston 11 ', spaced therefrom in the section I of the linear generator 1.
  • regenerators 2 and displacer 2 are disposed within the pressure housing and the interior of the pressure housing 3 is filled with a working gas 11.
  • the regenerators 2 further consist of a permanent magnet 21 'and slip rings 22' made of abrasion-resistant plastic.
  • the pressure housing 3 has at the two end faces in each case a filling opening 16 for the working gas 11.
  • the working gas 11 is distributed in the interior of the sections II, II ', the pressure housing 3 and is filled once in the production before thermal insulation on the pressure housing 3 are arranged.
  • the Stirling engine 0 presented here can be defined as a gamma type, since working pistons 11 'and both regenerators 2 are accommodated in the same cylindrical interior of the pressure housing 3.
  • the working piston 11 'and the regenerators 2 are mounted linearly movable in the direction of the axis R in the pressure housing interior, wherein there is no mechanical connection between the working piston 11' and regenerators 2. Both Regenerators 2 and the working piston 11 'are in the position according to Fig. 1a maximally deflected to the left.
  • the induction coil 5 is operated as an electromagnet, wherein a magnetic field is generated by current application, which is used to move the regenerators 2.
  • the induction coil 5 divides a heat transfer medium 14, here in the form of foamed metal 14, into two parts. Since heat energy is to be transferred as efficiently as possible to the working gas 11 in the pressure housing 3 in the second sections II, II ', the heat transfer means 14 are important.
  • a jacket 22 surrounds the foamed metal 14 and the induction coils 5 along the second sections II and II '.
  • the jacket 22 is enclosed by a surrounding thermal insulation 13, the heat supply regions 9 and heat dissipation regions 10.
  • a control module 6 with integrated interfaces such as WLAN and Bluetooth, a rechargeable battery 7 and a frequency converter 8 is positioned.
  • An electric line 21 carries the power of the frequency converter 8 to the outside.
  • lines 19 are arranged for a heat transfer fluid, preferably water. These lines 19 include solenoid valves 18 and sensors 17, wherein the lines 19 extend substantially parallel to the axis R.
  • a closed panel 12 surrounds the Stirling engine 0 in the second sections II and II ', surrounding the thermal insulation 13.
  • the lines 19 for the fluid are mounted within the panel 12 in the second sections II, II 'extending.
  • the first section I in which the linear generator 1 is arranged, encloses a perforated casing 20, which is a cooling of the first Section I allowed. Between the perforated panel 20 and the pressure housing 3 cooling fins 4 are arranged at right angles to the axis R, which improve the heat output of the linear generator 1 to the room air
  • Fig. 1a is shown in the sections II and II ', in the heat supply regions 9, on the outer two sides of the Stirling engine 0, heat supplied T2.
  • heat supplied T2 In the heat dissipation regions 10, left and right of the first section I and the linear generator 1 with working piston 11 ', heat is dissipated T1.
  • the lines 19 are provided, through which hot and cold water is conducted or discharged into the heat supply regions 9 and heat dissipation regions 10.
  • FIG. 1b puts the Stirling engine 0 over the Fig. 1a
  • the regenerator 2 of the second section II is deflected maximally in the direction of the working piston 11 ', while the regenerator 2 of the second section II' is at a maximum away from the working piston 11 'in the direction of the outer edge of the pressure housing 3 is deflected.
  • Fig. 1c represents the section I with the linear generator 1, opposite Fig. 1a enlarged, with a working piston 11 'consisting of permanent magnets which are movable with the working piston 11'.
  • Piston rings 13 ' are arranged on the left and right at the outer end of the working piston 11', whereby the linear movement of the working piston 11 'is simplified.
  • the linear generator 1 also has a stator with a plurality of windings 12 '.
  • the linear generator 1 is completely enclosed in the pressure housing 3.
  • the pressure housing 3 has the outer wall in the region of the linear generator 1, cooling fins 4. Through the region of the cooling fins 4, the lines 19 are arranged performed.
  • FIG. 2 represents a cross section 90 ° to the axis R of in Fig. 1a shown Stirling engine 0, in section II, at the height of a regenerator 2 in the heat supply region 9, with the permanent magnet 21 '.
  • the regenerator 2 is located within the pressure housing 3, this in turn is surrounded by the foamed metal 14 as a heat transfer means 14.
  • the sheath 22 closes the foamed metal 14 from the heat insulation 13 from.
  • the lines 19 and the electric line 21 are guided. All components are in turn enclosed within the panel 12.
  • the lines 19 and the electrical lines 21 are embedded in the thermal insulation 13 only in contact with ambient air and not with the heat transfer fluid flowing through the lines 19 and is introduced through the jacket 22 in the heat transfer means 14.
  • FIG. 3 shows the section 2, in section I, transverse to the linear generator 1.
  • the working piston 11 ' comprising permanent magnets, which is surrounded by a gap spaced from the stator with windings 12'.
  • the pressure housing 3 is in turn surrounded by the cooling fins 4. Through the cooling fins 4, the lines 19 are guided for the heat transfer fluid. All described components are in turn enclosed in the perforated panel 20.
  • a heat source is necessary, which introduces thermal energy within the sections II and II 'into the heat supply regions 9 by increased temperature T2.
  • warm fluid for example, water is supplied via the lines 19 as a heat transfer fluid.
  • the flow rate is measured by means of sensors 17. These data go to the control module 6, which turn by means of solenoid valves 18 can regulate the flow.
  • the supplied heat passes via the lines 19 in the region of the heat transfer means 14 in the form of the metal foams 14, the metal foams 14 transfer the heat energy from the heat transfer fluid through the pressure housing 3 to the working gas 11.
  • the metal foams 14 can also normal slats made of metal as a heat transfer medium 14 are used.
  • the pressure housing 3 is created in three parts, which are then joined together. This ensures that the linear generator 1 can be mounted or replaced.
  • the regenerator 2 displaces the working gas 11 from the elevated-temperature heat supply regions 9 into the low-temperature heat dissipation region 10.
  • the working gas 11 releases the heat energy via the pressure housing 3 to the metal foam 14 again. Since the metal foam 14 is flushed by the heat transfer fluid, such as water, the heat energy is dissipated.
  • the working gas 11 thereby cools and the internal pressure on the side of the section II of the linear generator 1 decreases.
  • the regenerator 2 displaces the working gas 11 from the cold area 10 with T1 to the warm area 9 T2 of the pressure housing 3 Fig. 1a described positions of the regenerators 2, arises in section II a pressure reduction because heat led away and in section II 'an increase in pressure because heat is supplied. This pressure gradient forces the working piston 11 'to move along the axis R in the direction of section II.
  • the regenerators 2 as in Fig. 1b shown on the respective opposite side, within the sections II and II ', along the axis R by means of a reversal of the polarity of the magnetic field of the induction coil 5 moves.
  • the regenerators 2 are short-term heat storage and absorb heat energy on the one hand on the working gas 11 in order to give you back to the working gas 11 on the opposite side.
  • the regenerators 2 are made of material with high heat capacity. Since the regenerators 2, temporally delay this heat flow, a higher temperature gradient between the working gas volume 11 left and right of the regenerators 2. This causes the working gas 11 expands and acts along the axis R on the end face of the working piston 11 'of the linear generator. 1 By the piston ring 13 'is achieved that the working gas 11 does not penetrate into the linear generator 1. Between the divided by the linear generator 1 cavity of the pressure housing 3, now creates a pressure gradient of the working gas 11. The forces acting on the piston 11 'forces set this parallel to the axis R in motion.
  • the working piston 11 ' provided with permanent magnets induces an electric voltage by means of its magnetic field via the stator with windings 12'.
  • This tension is achieved by means of Electric lines 21 supplied to the frequency converter 8, this increases the frequency to the usual 50 Hz so that the power generated can be supplied to an external consumer.
  • the double action of the Stirling engine 0 is achieved in that the working gas 11 can act alternately on both sides of the linear generator 1 on the working piston 11 'by being exposed to different temperatures simultaneously on both sides of the linear generator 1 as described above and the pressure is applied to the one side increased, sinking simultaneously on the opposite side.
  • the induction coil 5 generates a directional magnetic field for moving the regenerators 2, it consists of a copper wire winding and is supplied via the control module 6 with power.
  • the induction coils 5 thus form an electromagnet with which a controlled positioning of the regenerators 2 is possible.
  • the regenerators 2 must therefore be permanently magnetic or, as shown, be provided with a permanent magnet 21 '.
  • slip rings 22 'made of metal or plastic are used.
  • the battery 7 is charged during operation of the Stirling engine 0 by means of specially generated electrical energy to provide the necessary starting energy after a standstill, for the movement of the regenerators 2 by means of the induction coil fifth
  • the control module 6 monitors by means of the sensors 17, the heat flow which is supplied through the line 19 for the fluid in the Stirling engine from the outside.
  • the control module 6 consists of a processor for processing appropriate data such as temperature, flow rate, voltage and current. Based on The control module 6 regulates the flow of the fluid by means of the solenoid valves 18.
  • the control module 6 provides an interface, optionally via Bluetooth, WLAN, or USB interface. This interface is used to control, monitor and adjust the Stirling engine 0 for the user.
  • the Stirling engine 0 is completed in section I to the linear generator 1 with a perforated panel 20 to ensure that the waste heat of the linear generator 1 can be discharged through the cooling fins 4 and through the perforated panel 20 to the ambient air.
  • a double action of the Stirling engine 0 is achieved here by the fact that the two displacement sections II, II 'are arranged on both sides of the working section I, wherein the pressure housing 3 encloses an interior, in which the working gas 11, the working piston 11' and both regenerators 2 linearly are movably arranged.
  • the regenerators 2 move on both sides of the working section I and thus on both sides of the linear generator 1.
  • the working gas 11 should not compensate for the sections II and II 'on the working section I.
  • the piston rings 13 'and slip rings 22' prevent the working gas 11 from leaving sections II and II 'and entering section I.
  • the pressure housing 3 is built around the linear generator 1 to keep the working gas 11 flowing past the piston ring 13 'and slip rings 22' in the closed system.
  • the Stirling engine 0 can be designed such that the linear generator 1 has the axis R and the pressure housing 3 is designed angled in the region of the two regenerators 2 by an angle greater 0 ° relative to the axis R. Accordingly, then the displacement sections II, II 'are arranged angled to the first section I, preferably at an angle relative to the axis R, which forms a zero line. In the case of a bend, an angle of 90 ° would preferably be selected so that the Stirling engine 0 has a U-shape.
  • stator 12 ' With tests have shown, it is possible or advantageous to arrange the stator 12 'with windings outside of the pressure housing 3, in contrast to those in FIGS FIG. 1a and 1b presented version.
  • the stator 12 ' is arranged outside of a here designed tubular pressure housing 3 with a constant cross-section. In this case, the windings of the stator 12 ', the pressure housing 3 enclosing, wound. This is in FIG. 4 recognizable.
  • control module 6 In a modified form here are the control module 6 and various electrical lines 21 outside the Stirling engine 0 are arranged, wherein the electric wires 21 are guided to the pressure housing 3 to the induction coils 5.
  • a plurality of cooling fins 4 are provided on the pressure housing 3 here.
  • a series connection of at least two Stirling machines 0 is provided.
  • both Stirling machines are 0, a single closed pressure housing 3 having, aligned along the axis R, arranged.
  • pressure housing 3 By one filled with working gas 11 pressure housing 3 is an operative connection of the sections I, I ', II. II', II “, II '” reachable. All displacer sections II, II ', II “, II'” with regenerators 2, 2 ', 2 ", 2'” and all working sections I, I 'are spaced from one another in the same pressure housing 3.
  • a plurality of induction coils 5 surround the displacer sections II, II ', II ", II'” at least partially. The induction coils 5 are arranged outside the pressure housing 3 as close as possible to the wall of the pressure housing 3 within the panel 12.
  • Stirling machines have long been used for cooling in cryotechnology to reach very low temperatures.
  • the delta Stirling 0 shown here can be used anywhere, the simple delta design is ideal for small designs, the fridge and the Air conditioning are mandatory. Its unique functionality is efficient, cost-effective and environmentally friendly.
  • the condensation pressure In the case of a conventional refrigerant, the condensation pressure must always be reached via a compressor, the condensation pressure being dependent on the refrigerant, so that it can be evaporated at the desired temperature.
  • Stirling machines 0 here also small delta temperatures can be driven. The regulation runs only over the compression ratio (gas) and the clock frequency of the regenerator or the regenerators.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP17187947.1A 2016-09-27 2017-08-25 Moteur à cycle fermé de type stirling à piston flottant à double action pourvu de générateur linéaire Withdrawn EP3301287A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01262/16A CH712956B1 (de) 2016-09-27 2016-09-27 Doppelwirkende Freikolben-Stirling-Kreislaufmaschine mit Lineargenerator.

Publications (1)

Publication Number Publication Date
EP3301287A1 true EP3301287A1 (fr) 2018-04-04

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EP17187947.1A Withdrawn EP3301287A1 (fr) 2016-09-27 2017-08-25 Moteur à cycle fermé de type stirling à piston flottant à double action pourvu de générateur linéaire

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US (1) US20180087473A1 (fr)
EP (1) EP3301287A1 (fr)
CH (1) CH712956B1 (fr)

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US10774783B2 (en) * 2018-04-20 2020-09-15 Stratum Ventures, Llc Liquid piston stirling engine with linear generator

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FR1407682A (fr) * 1964-05-22 1965-08-06 Snecma Perfectionnements aux machines thermiques à pistons libres
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WO2020236885A3 (fr) * 2019-05-21 2021-01-21 General Electric Company Appareil de conversion d'énergie et système de commande
US11174814B2 (en) 2019-05-21 2021-11-16 General Electric Company Energy conversion apparatus
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US11629663B2 (en) 2019-05-21 2023-04-18 General Electric Company Energy conversion apparatus
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