EP3458694B1 - Dispositif à piston libre - Google Patents

Dispositif à piston libre Download PDF

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Publication number
EP3458694B1
EP3458694B1 EP17726216.9A EP17726216A EP3458694B1 EP 3458694 B1 EP3458694 B1 EP 3458694B1 EP 17726216 A EP17726216 A EP 17726216A EP 3458694 B1 EP3458694 B1 EP 3458694B1
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EP
European Patent Office
Prior art keywords
piston
housing
fresh gas
free
accordance
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.)
Active
Application number
EP17726216.9A
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German (de)
English (en)
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EP3458694A1 (fr
Inventor
Stephan Schneider
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.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
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Deutsches Zentrum fuer Luft und Raumfahrt eV
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Publication of EP3458694A1 publication Critical patent/EP3458694A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/007—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means
    • 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
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/02—Equalising or cushioning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F02B63/041—Linear electric generators

Definitions

  • fresh gas is understood to mean a gas or gas mixture (in particular air) for internal combustion in the combustion chamber, whereby a fuel can also be mixed into the gas.
  • fresh gas can therefore also refer to a gas-fuel mixture that can flow into the combustion chamber via the at least one inlet opening.
  • exhaust gas refers to a combustion product of internal combustion.
  • a generic free piston device is in the DE 31 11 419 A1 described.
  • the object of the present invention is to provide a free piston device of the type mentioned at the outset, in which the supply of fresh gas is improved with a view to optimized combustion.
  • fresh gas flowing in via the supply line first reaches the calming chamber, which is formed by the housing.
  • the flow of fresh gas can be calmed in the calming room.
  • any pulsations and turbulences can be dampened. Only after calming down does the fresh gas enter the combustion chamber, whereby the flow ratio in the combustion chamber can be adjusted in an improved manner for the purpose of optimized combustion.
  • a swirling movement or a tumble movement of the fresh gas can be implemented in a better way.
  • the housing is preferably designed in such a way that the calming space completely surrounds the piston receptacle in the circumferential direction of the axis. In this way, the largest possible calming space is provided in order to calm the fresh gas before it enters the combustion chamber. Even if there are a plurality or multiplicity of inlet openings in the wall, the fresh gas entering through them can be calmed down beforehand.
  • the housing includes, for example, a wall surrounding the piston receptacle in the circumferential direction of the axis.
  • the housing has through openings through which the piston receptacle passes axially through the housing.
  • through openings for the housing are provided in axial end walls, and a circumferential (side) wall connects the end walls to one another.
  • the at least one inlet opening is arranged in the wall axially between the end walls.
  • the end walls can contact the wall laterally next to the at least one inlet opening.
  • a sealing element can be provided at a respective through opening, which seals between the wall and the housing.
  • the housing is cuboid or toroidal.
  • a cuboid housing for example, has a cross section that is square or essentially square with respect to the axis.
  • the housing is advantageously designed in such a way that the calming space is designed in a ring shape.
  • this can be understood in particular to mean that the calming space completely surrounds the wall in the circumferential direction of the axis.
  • the housing is designed in such a way that the calming space is designed to be point-symmetrical with respect to the axis and/or mirror-symmetrical with respect to at least one plane of symmetry containing the axis.
  • the supply line is connected to the housing radially with respect to the axis of the piston device.
  • a plurality of inlet openings are provided, with the calming space surrounding all inlet openings and opening into the combustion chamber via these. Fresh gas that enters the combustion chamber via each of the inlet openings is previously calmed down in the calming chamber.
  • the free piston device comprises an energy coupling device that is coupled to the piston device and can be coupled out via the energy of the piston device or can be coupled into the piston device via the energy.
  • taxes must be interpreted to mean “regulate” as an alternative or supplement.
  • control can therefore be understood as “control and/or regulation”.
  • the energy coupling device which can be carried out by a control device of the free-piston device, the operating point of the free-piston device can be set during operation. For this purpose, if necessary, energy can be transferred from the energy coupling device to the piston device or energy can be taken from the piston device via the energy coupling device.
  • the piston device can be assigned two linear generators with a respective rotor arrangement and a respective stator arrangement.
  • a respective linear generator can, for example, be positioned laterally next to the piston receptacle and form one of the units of the energy coupling device mentioned below.
  • the energy coupling device is preferably positioned laterally next to the piston receptacle and the housing. This allows a compact design of the free piston device to be achieved. The length of the piston receptacle from the combustion chamber via a piston rod of the piston device to any springback device can be kept relatively short. The energy coupling device is positioned laterally next to the piston holder and the housing for fresh gas and the free piston device is therefore made compact.
  • the housing is advantageous for the housing to be arranged completely within an outer contour of a housing of the free piston device that accommodates the energy coupling device.
  • the piston receptacle is preferably also positioned within the outer contour.
  • the housing of the free piston device accommodates the energy coupling device, which is arranged at least on one side laterally next to the piston receptacle and the housing for fresh gas.
  • the housing for fresh gas can be arranged within the outer contour of the housing of the free piston device, preferably also the piston receptacle.
  • the housing for fresh gas advantageously does not protrude in any spatial direction beyond the outer contour of the housing of the free piston device, or only insignificantly, for example with a connection element for the supply line.
  • the housing for fresh gas can preferably completely or substantially completely utilize the installation space of the free piston device.
  • the housing for fresh gas preferably does not protrude beyond the outer contour of the housing of the free piston device, but advantageously uses the installation space within the outer contour as much as possible. With a compact design of the free piston device, the largest possible space within the outer contour can be used as a calming space for the fresh gas.
  • the housing of the free piston device can comprise an upper wall, a lower wall and a circumferential side wall and can preferably be designed as a flat housing.
  • the piston is at least partially movable over the at least one inlet opening, which can be at least partially released by the piston when the bottom dead center is reached.
  • the piston can form a valve body for the at least one inlet opening.
  • a separate valve can be saved.
  • fresh gas can flow in from the calming chamber through the at least one inlet opening for flushing the combustion chamber.
  • the free piston device can comprise a further springback device which is assigned to the further piston device.
  • the springback device can include a gas spring and/or be designed mechanically.
  • the further piston device can also be assigned an energy coupling device, which is preferably positioned laterally next to the piston receptacle.
  • the energy coupling device can include a linear generator.
  • two units of the further energy coupling device are provided, each positioned laterally next to the piston receptacle. Each unit can be formed by a linear generator.
  • the piston of the further piston device is preferably at least partially movable via the at least one outlet opening, which can be at least partially released by the piston when the bottom dead center is reached. This allows the piston to form a valve body for the at least one outlet opening. A separate valve can be saved. At bottom dead center of the piston, exhaust gas can flow out of the combustion chamber through the at least one outlet opening.
  • a piston device can (precisely) be provided.
  • At least one valve that can be controlled by a control device of the free piston device for releasing or blocking the at least one outlet opening is preferably arranged on the at least one outlet opening.
  • the control device can use the at least one valve to release the at least one outlet opening and thereby carry out the gas exchange.
  • the at least one outlet opening is arranged, for example, on the front side of the wall of the combustion chamber and lies opposite a piston surface of the piston.
  • the drawing shows an advantageous embodiment of a free-piston device according to the invention, designated by reference number 10, which forms a free-piston engine 12.
  • the free piston device 10 comprises an outer housing 14, which in the present case is cuboid and is designed as a flat housing.
  • the housing 14 includes an upper wall 141, a lower wall 143 and a circumferential side wall 145 and defines an outer contour of the free piston device 10.
  • the walls 141, 143 and 145 enclose a receiving space 147.
  • a piston receptacle 16 is arranged in the receiving space 147.
  • the piston receptacle 16 is elongated and defines an axis 18 of the free-piston device 10.
  • the piston receptacle 16 has a housing 20 of approximately hollow cylindrical shape, which is divided into individual sections.
  • a piston liner 22 of the piston receptacle 16 is arranged in the housing 20.
  • the piston liner 22 is essentially hollow cylindrical and is inserted into a central section of the housing 20 ( Figures 3 to 5 ).
  • the inlet openings 26 are axially spaced from the outlet openings 28. “Axial” and “radial” in this case refer to axis 18.
  • the respective inlet openings 26 are formed in essentially the same position in the wall 24 in the circumferential direction of the axis 18. The same applies to the outlet openings 28.
  • the inlet openings 26 and the outlet openings 28 are, for example, slot-shaped or shaft-shaped.
  • the piston rod 36 connects the piston 34 to the counter-piston 38, with both pistons 34, 38 being held on the piston rod 36 in a tiltable manner.
  • a rigid connection is also conceivable.
  • projections 44 project from the piston rod 36 on opposite sides. The projections 44 emerge from the housing 20.
  • the piston rod 36 therefore has an approximately cross-shaped shape ( Figure 4 ).
  • the free-piston device 10 comprises a spring-back device 46 assigned to each piston device 30, 32.
  • the spring-back device 46 in the present case comprises a gas spring 48 with a spring-back space.
  • the springback space is formed by the housing 20 and is arranged at the end thereof.
  • the free-piston device 10 works according to the two-stroke process.
  • Combustion in the combustion chamber 42 drives the pistons 34 apart starting from top dead center, so that they are axially displaced in the piston liner 22. The displacement takes place up to a respective bottom dead center of the pistons 34. If the pistons 34 occupy the bottom dead center, the inlet openings 26 are released by the piston 34 of the piston device 30, and the outlet openings 28 are released by the piston 34 of the piston device 32. This is in the Figures 4 and 5 shown.
  • Fresh gas that enters the housing 68 via the supply line 66 can relax in the calming room 76. Pulsations and turbulences are dampened. It can be seen that by providing the housing 68 with the calming chamber 76, the inflow of fresh gas through the inlet openings 26 is optimized with regard to combustion in the combustion chamber 42.
  • the housing 68 is also arranged completely within the outer contour of the housing 14 of the free piston device 10 ( Figures 1 and 3 ).
  • the units 54, 56 are positioned laterally next to the housing 68, and in a transverse direction thereto and transverse to the axis 18, the housing 68 remains within the outer contour defined by the housing 14, in which the units 54, 56 are also accommodated.

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

Claims (15)

  1. Dispositif à piston libre comprenant :
    - un boîtier externe (14) du dispositif à piston libre avec un contour externe,
    - un logement de piston (16), qui comprend ou forme une chambre de combustion (42) délimitée par une paroi (24), dans laquelle sont formées au moins une ouverture d'entrée (26) pour l'alimentation en gaz frais et, distante de celle-ci dans la direction axiale, au moins une ouverture de sortie (28) pour l'évacuation du gaz d'échappement, dans lequel du gaz frais peut être introduit par l'intermédiaire d'une conduite d'alimentation (66),
    - au moins un dispositif à piston (30) avec un piston (34) qui est disposé dans le logement de piston de manière mobile avec un mouvement de va-et-vient le long d'un axe (18) et
    - un boîtier (68) raccordé, dans la direction d'écoulement du gaz frais, à la conduite d'alimentation (66), pour le gaz frais,
    caractérisé en ce que
    le dispositif à piston libre (10) comprend un dispositif de couplage d'énergie (52), couplé avec le dispositif à piston (30), par l'intermédiaire duquel l'énergie peut être extraite du dispositif à piston (30) et par l'intermédiaire duquel l'énergie peut être introduite dans le dispositif à piston (30),
    et le boîtier (68) pour le gaz frais forme une chambre de stabilisation (76), entourant au moins à certains endroits le logement de piston (16) au niveau de l'au moins une ouverture d'entrée (26) dans la direction périphérique de l'axe (18), pour le gaz frais, qui débouche, par l'intermédiaire de l'au moins une ouverture d'entrée (26), dans la chambre de combustion (42),
    dans lequel le boîtier (68) pour le gaz frais est disposé entièrement à l'intérieur du contour externe.
  2. Dispositif à piston libre selon la revendication 1, caractérisé en ce que le boîtier (68) pour le gaz frais est conçu de sorte que la chambre de stabilisation (76) entoure entièrement le logement de piston (16) dans la direction périphérique de l'axe (18) et/ou en ce que le boîtier (68) pour le gaz frais présente des ouvertures de passage à travers lesquelles le logement de piston (16) traverse axialement le boîtier (68) pour le gaz frais.
  3. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le boîtier (68) pour le gaz frais présente une forme parallélépipédique ou torique et/ou en ce que le boîtier (68) pour le gaz frais est conçu de sorte que la chambre de stabilisation (76) présente une forme annulaire.
  4. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le boîtier (68) pour le gaz frais est orienté de manière coaxiale par rapport au logement de piston (16).
  5. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le boîtier (68) pour le gaz frais est conçu de sorte que la chambre de stabilisation (76) est réalisée avec une symétrie ponctuelle par rapport à l'axe (18) et/ou avec une symétrie en miroir par rapport à au moins un plan de symétrie contenant l'axe (18).
  6. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que la conduite d'alimentation (66) est raccordée au boîtier (68) pour le gaz frais transversalement par rapport à la direction du déplacement du dispositif à piston (30), plus particulièrement en ce que la conduite d'alimentation (66) est raccordée, de manière radiale par rapport à l'axe (18), au boîtier (68) pour le gaz frais et/ou en ce qu'une pluralité d'ouverture d'entrée (26) sont prévues et en ce que la chambre de stabilisation (76) entoure toutes les ouvertures d'entrée (26) et débouche, par l'intermédiaire de celles-ci, dans la chambre de combustion (42).
  7. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que l'extension de la chambre de stabilisation (76) dans le boîtier (68) pour le gaz frais dans la direction axiale est plus petite que l'extension de la chambre de stabilisation (76) dans le boîtier (68) pour le gaz frais dans une direction orientée transversalement par rapport à l'axe (18) et/ou en ce que l'extension de l'au moins une ouverture d'entrée (26) dans la direction axiale représente approximativement un quart de l'extension de la chambre de stabilisation (76) dans le boîtier (68) pour le gaz frais dans la direction axiale, de préférence au moins un tiers de l'extension de la chambre de stabilisation (76).
  8. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le dispositif de couplage d'énergie (52) comprend au moins un générateur linéaire (58).
  9. Dispositif à piston libre selon la revendication 8, caractérisé en ce que le dispositif de couplage d'énergie (52) est positionné latéralement à côté du logement de piston (16) et du boîtier (68) pour le gaz frais.
  10. Dispositif à piston libre selon la revendication 8 ou 9, caractérisé en ce que le dispositif de couplage d'énergie (52) comprend une première unité (54) et une deuxième unité (56), qui sont positionnées chacune latéralement à côté du logement de piston (16) et du boîtier (68) pour le gaz frais, dans lequel le logement de piston (16) et le boîtier (68) pour gaz frais sont disposés entre les unités (54, 56) du dispositif de couplage d'énergie (52).
  11. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le logement de piston (16) est également positionné à l'intérieur du contour externe.
  12. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le logement de piston (16) comprend un boîtier (20) et une chemise de piston (22) qui est insérée dans le boîtier (20) et qui comprend ou forme la paroi (24), dans lequel le piston (34) peut se déplacer avec un mouvement de va-et-vient dans la chemise de piston (22) et l'au moins une ouverture d'entrée (26) est réalisée dans la chemise de piston (22).
  13. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le piston (34) peut se déplacer au moins partiellement au-dessus de l'au moins une ouverture d'entrée (26) et en ce que celle-ci peut être dégagée au moins partiellement lorsque le piston (34) se trouve au point mort inférieur.
  14. Dispositif à piston libre selon l'une des revendications précédentes, caractérisé en ce que le dispositif à piston libre (10) comprend un autre dispositif à piston (32) avec un piston (34), dans lequel les pistons (34) des deux dispositifs à pistons (30, 32) sont positionnés dans une disposition de contre-pistons, dans lequel la chambre de combustion (42) est réalisée entre les pistons (34), de préférence le piston (34) de l'autre dispositif à piston (32) peut se déplacer au moins partiellement au-dessus de l'au moins une ouverture de sortie (28) et en ce que celle-ci peut être dégagée au moins partiellement lorsque le piston (34) se trouve au point mort inférieur.
  15. Dispositif à piston libre selon l'une des revendications 1 à 13, caractérisé en ce qu'un dispositif à piston est prévu, dans lequel, au niveau de l'au moins une ouverture de sortie, est disposée au moins une soupape, pouvant être contrôlée par un dispositif de commande du dispositif à piston libre, pour le dégagement ou le blocage de l'au moins une ouverture de sortie.
EP17726216.9A 2016-05-17 2017-05-12 Dispositif à piston libre Active EP3458694B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016109038.7A DE102016109038A1 (de) 2016-05-17 2016-05-17 Freikolbenvorrichtung
PCT/EP2017/061495 WO2017198569A1 (fr) 2016-05-17 2017-05-12 Dispositif à piston libre

Publications (2)

Publication Number Publication Date
EP3458694A1 EP3458694A1 (fr) 2019-03-27
EP3458694B1 true EP3458694B1 (fr) 2023-10-18

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Country Link
US (1) US10890070B2 (fr)
EP (1) EP3458694B1 (fr)
CN (1) CN109072778B (fr)
DE (1) DE102016109038A1 (fr)
WO (1) WO2017198569A1 (fr)

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DE102016120354B4 (de) 2016-10-25 2022-02-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Freikolbenvorrichtung
DE102017115171B4 (de) 2017-07-06 2020-11-05 Deutsches Zentrum für Luft- und Raumfahrt e.V. Freikolbenvorrichtung und Verfahren zum Betreiben einer Freikolbenvorrichtung
DE102017127650A1 (de) 2017-11-23 2019-05-23 Deutsches Zentrum für Luft- und Raumfahrt e.V. Freikolbenvorrichtung und Verfahren zum Betreiben einer Freikolbenvorrichtung
DE102018117066A1 (de) * 2018-07-13 2020-01-16 Simon Neukom Verfahren zum Betreiben eines Freikolbenlineargenerators
DE102018219946A1 (de) * 2018-11-21 2020-01-09 Mtu Friedrichshafen Gmbh Freikolbenvorrichtung
CN109779747B (zh) * 2019-01-17 2020-11-17 上海交通大学 自由活塞式内燃发电装置
CN112196669B (zh) * 2020-12-02 2021-04-30 中国科学院宁波材料技术与工程研究所 具有多级回复装置的自由活塞发电系统

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Publication number Publication date
US20190085694A1 (en) 2019-03-21
CN109072778A (zh) 2018-12-21
US10890070B2 (en) 2021-01-12
EP3458694A1 (fr) 2019-03-27
DE102016109038A1 (de) 2017-11-23
CN109072778B (zh) 2021-07-27
WO2017198569A1 (fr) 2017-11-23

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