DE102010009516A1 - Device for power generation for driving auxiliary units in internal combustion engine, has generator connected with crankshaft of Stirling engine and driven by Stirling engine and generates electrical energy for driving auxiliary units - Google Patents
Device for power generation for driving auxiliary units in internal combustion engine, has generator connected with crankshaft of Stirling engine and driven by Stirling engine and generates electrical energy for driving auxiliary units Download PDFInfo
- Publication number
- DE102010009516A1 DE102010009516A1 DE102010009516A DE102010009516A DE102010009516A1 DE 102010009516 A1 DE102010009516 A1 DE 102010009516A1 DE 102010009516 A DE102010009516 A DE 102010009516A DE 102010009516 A DE102010009516 A DE 102010009516A DE 102010009516 A1 DE102010009516 A1 DE 102010009516A1
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- stirling engine
- combustion engine
- engine
- stirling
- 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.)
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Classifications
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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
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
-
- 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
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
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- 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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Energieerzeugung zum Antreiben von Nebenaggregaten in Verbrennungskraftmaschinen, wie Klimakompressor, Lenkhilfepumpe, Wasserpumpe, Pumpe zur Niveauregulierung und dergleichen aus der Wärmeenergie der Abgase der Verbrennungskraftmaschine.The invention relates to a device for generating energy for driving ancillaries in internal combustion engines, such as air conditioning compressor, power steering pump, water pump, pump for level control and the like from the heat energy of the exhaust gases of the internal combustion engine.
Es ist bekannt, dass bei Kraftfahrzeugen ein deutlicher Kraftstoffverbrauch durch die sogenannten Nebenaggregate, wie Klimakompressor, Lenkhilfepumpe, Wasserpumpe, Pumpe zur Niveauregulierung erzeugt wird. Außerdem wird bei hohen Außentemperaturen z. B. durch den Klimakompressor und durch den Betrieb der Klimagebläse insbesondere im städtischen Betrieb von Personenfahrzeugen ein deutlicher Kraftstoffverbrauch verursacht. Der Antrieb von Nebenaggregaten von Fahrzeugantriebsmotoren wird heute mit Riementrieben realisiert. Dabei treibt eine Kurbelwelle über eine mit ihr verbundene Riemenscheibe über einen Riementrieb die Lenkhilfepumpe, den Klimakompressor, die Wasserpumpe, den Generator und dergleichen an. Dabei muss von der Verbrennungskraftmaschine, je nachdem wie stark die Nebenaggregate belastet sind, ein Drehmoment zum Antrieb dieser Aggregate aufgebracht werden, das einen erheblichen Anteil des effektiven Drehmoments, das die Verbrennungskraftmaschine zum Antrieb des Fahrzeugs bereitstellen kann, benötigt. Bei modernen Fahrzeugen werden heute bereits mehrere Nebenaggregate elektrisch angetrieben, dabei handelt es sich um elektrisch angetriebene Lenkhilfepumpen, elektrisch angetriebene Klimakompressoren und elektrisch angetriebene Wasserpumpen. Nur der Generator muss weiterhin von der Verbrennungskraftmaschine direkt angetrieben werden.It is known that in motor vehicles a significant fuel consumption by the so-called ancillaries, such as air compressor, power steering pump, water pump, pump for level control is generated. In addition, at high outside temperatures z. B. caused by the air conditioning compressor and by the operation of Klimagebläse especially in urban operation of passenger vehicles a significant fuel consumption. The drive of auxiliary units of vehicle drive motors is realized today with belt drives. A crankshaft drives the power steering pump, the air conditioning compressor, the water pump, the generator and the like via a pulley connected to it via a belt drive. It must be applied by the internal combustion engine, depending on how much the ancillaries are loaded, a torque to drive these units, which requires a significant proportion of the effective torque that can provide the internal combustion engine to drive the vehicle. In modern vehicles, several ancillaries are already electrically driven, these are electrically powered power steering pumps, electrically driven air conditioning compressors and electrically driven water pumps. Only the generator must continue to be driven directly by the internal combustion engine.
Um die bei Kraftfahrzeugen auftreten energiereichen Abgase einerseits direkt wieder zu nutzen und gleichzeitig die damit verbundenen Wärmeverluste der Verbrennungskraftmaschinen niedrig zu halten, so dass die Kosten für den Betrieb der Kraftfahrzeuge verbessert werden und zusätzlich ein größerer Umweltschutz erreicht wird, werden derzeitig viele Anstrengungen unternommen. So ist aus der
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Einrichtung zu schaffen, die den Kraftstoffverbrauch von Verbrennungskraftmaschinen zum Antrieb eines Kraftfahrzeuges reduziert, indem die Nebenaggregate des Kraftfahrzeuges nicht mehr direkt von der Verbrennungskraftmaschine angetrieben werden und dadurch eine Kraftstoffreduzierung und eine Steigerung des Wirkungsgrades der Verbrennungskraftmaschine erreicht wird.Based on this prior art, the present invention seeks to provide a device that reduces the fuel consumption of internal combustion engines for driving a motor vehicle by the auxiliary units of the motor vehicle are no longer driven directly from the internal combustion engine and thereby a fuel reduction and an increase of Efficiency of the internal combustion engine is achieved.
Um den Wirkungsgrad der Verbrennungskraftmaschine zum Antrieb eines Kraftfahrzeuges zu steigern und gleichzeitig den Kraftstoffverbrauch zu reduzieren, schlägt die vorliegende Erfindung eine Einrichtung zur Energieerzeugung zum Antreiben von Nebenaggregaten in Verbrennungskraftmaschinen vor, indem die Einrichtung einen Stirlingmotor zur Umwandlung von thermischer in mechanische Energie umfasst, der zur Entnahme von Wärmeenergie aus Abgasen der Verbrennungskraftmaschine direkt mit einem Abgaskrümmer der Verbrennungskraftmaschine verbundenen ist, wobei der Stirlingmotor die Wärmeenergie der Abgase der Verbrennungskraftmaschine nutzt, um einen von der Verbrennungskraftmaschine getrennt vorgesehenen Generator, der direkt mit der Kurbelwelle des Stirlingmotors verbunden ist, anzutreiben. Die Entnahme von Wärmeenergie aus Abgasen der Verbrennungskraftmaschine ist dabei nicht nur auf den Abgaskrümmmer beschränkt, sondern dieser Wärmeentzug kann auch an jeder anderen Stelle des Abgasstranges mittels eines geeigneten Wärmetauschers erfolgen.In order to increase the efficiency of the internal combustion engine for driving a motor vehicle and at the same time to reduce fuel consumption, the present invention proposes a device for generating energy for driving ancillaries in internal combustion engines by the device comprises a Stirling engine for the conversion of thermal energy into mechanical energy Removal of heat energy from exhaust gases of the internal combustion engine is directly connected to an exhaust manifold of the internal combustion engine, the Stirling engine uses the heat energy of the exhaust gases of the internal combustion engine to separately from the internal combustion engine provided generator, which is directly connected to the crankshaft of the Stirling engine to drive. The removal of heat energy from exhaust gases of the internal combustion engine is not limited only to the Abgaskrümmmer, but this heat extraction can also be done at any other point of the exhaust system by means of a suitable heat exchanger.
Der Generator versorgt die Nebenaggregate der Verbrennungskraftmaschine mit Strom, bzw. lädt die Batterie des Fahrzeuges auf. Beim Starten, wenn die Verbrennungskraftmaschine noch kalt ist, und der Stirlingmotor deshalb noch kein Nutzdrehmoment abgibt, werden die Nebenaggregate durch Strom aus der Batterie versorgt. Da der Generator über ein Getriebe und/oder eine schaltbare Kupplung mit der Kurbelwelle der Verbrennungskraftmaschine verbindbar ist, kann er dadurch, falls notwendig, auch direkt von der Verbrennungskraftmaschine angetrieben werden.The generator supplies the ancillaries of the internal combustion engine with electricity, or charges the battery of the vehicle. When starting, when the internal combustion engine is still cold, and the Stirling engine therefore still no useful torque, the ancillaries are powered by electricity from the battery. Since the generator can be connected to the crankshaft of the internal combustion engine via a gearbox and / or a shiftable clutch, it can thereby, if necessary, also be driven directly by the internal combustion engine.
Durch die Entnahme vom Wärme aus dem Abgaskrümmer wird außerdem die Abgastemperatur abgesenkt. Dadurch kann auch die Anreicherung von Kraftstoff an der Volllast der Verbrennungskraftmaschine, der so genannte Bauteilschutz entfallen. Des Weiteren wird es möglich, an der Volllast Zündwinkel einzustellen, die einen besseren Wirkungsgrad der Verbrennungskraftmaschine zur Folge haben. Beide Maßnahmen reduzieren den Kraftstoffverbrauch. Zur Zeit kann dies nicht erfolgen, da ansonsten der Abgasturbolader thermisch überlastet würde. By removing the heat from the exhaust manifold also the exhaust gas temperature is lowered. As a result, the enrichment of fuel at the full load of the internal combustion engine, the so-called component protection accounts. Furthermore, it becomes possible to set firing angles at the full load, which result in better efficiency of the internal combustion engine. Both measures reduce fuel consumption. At present, this can not be done because otherwise the exhaust gas turbocharger would be thermally overloaded.
Vorteilhaft ist vorgesehen, dass der Stirlingmotor insbesondere als Alpha-, Beta- oder Gammatyp ausgebildet und möglichst nahe an dem Abgaskrümmer der Verbrennungskraftmaschine angeordnet ist. Der Stirlingmotor ist vorzugsweise direkt an dem Kurbelgehäuse der Verbrennungskraftmaschine angeflanscht ist, wobei die Kurbelwelle des Stirlingmotors über ein Getriebe und eine schaltbare Kupplung mit dem Generator verbunden ist. Bevorzugt ist die Kurbelwelle des Stirlingmotors insbesondere in Keramiklagern gelagert.It is advantageously provided that the Stirling engine is designed in particular as an alpha, beta or gamma type and is arranged as close as possible to the exhaust manifold of the internal combustion engine. The Stirling engine is preferably flanged directly to the crankcase of the internal combustion engine, wherein the crankshaft of the Stirling engine is connected via a gear and a shiftable clutch to the generator. Preferably, the crankshaft of the Stirling engine is mounted in particular in ceramic bearings.
Eine vorteilhafte Ausführungsform der Einrichtung wird darin gesehen, dass der Abgaskrümmer der Verbrennungskraftmaschine insbesondere zweischalig ausgebildet und der Stirlingmotor mit dem Abgaskrümmer gasdicht verbunden ist, wobei ein Hohlraum zwischen der inneren und der äußeren Schale des Abgaskrümmers und die Verbindungsleitungen zu dem Expansionszylinder und dem Kompressionszylinder des Stirlingmotors mit einem Arbeitsgas, vorzugsweise Kohlendioxyd oder Helium, gefüllt sind und wobei das Arbeitsgas des Stirlingmotors unter einem Druck steht, der höher als der Umgebungsdruck ist, da sich dadurch ein höherer Wirkungsgrad des Stirlingmotors erreichen lässt.An advantageous embodiment of the device is seen in that the exhaust manifold of the internal combustion engine is formed in particular bivalve and the Stirling engine gas-tightly connected to the exhaust manifold, wherein a cavity between the inner and the outer shell of the exhaust manifold and the connecting lines to the expansion cylinder and the compression cylinder of the Stirling engine are filled with a working gas, preferably carbon dioxide or helium, and wherein the working gas of the Stirling engine is under a pressure which is higher than the ambient pressure, as this can achieve a higher efficiency of the Stirling engine.
Bevorzugt ist vorgesehen, dass zur besseren Wärmeübertragung die Oberfläche der inneren Schale des Abgaskrümmers entweder eine Beschichtung zur Vergrößerung der Oberfläche aufweist oder die Oberfläche ist durch zusätzliche Bleche vergrößerbar. Weiterhin ist vorgesehen, dass zusätzlich die Oberflächen der Verbindungsleitungen zwischen dem Stirlingmotor und dem Abgaskrümmer mit dem Kühlmittel der Verbrennungskraftmaschine kühlbar sind, wobei das umschlossene Volumen der Verbindungsleitungen möglichst klein ist.It is preferably provided that for better heat transfer, the surface of the inner shell of the exhaust manifold either has a coating to increase the surface or the surface can be increased by additional sheets. It is further provided that in addition the surfaces of the connecting lines between the Stirling engine and the exhaust manifold with the coolant of the internal combustion engine can be cooled, wherein the enclosed volume of the connecting lines is as small as possible.
Die Erfindung wird nachfolgend anhand eines schematisch in einer Zeichnung dargestellten Ausführungsbeispieles näher erläutert.The invention will be explained in more detail with reference to an embodiment schematically illustrated in a drawing.
Es zeigt:It shows:
In
Die Erfindung beschränkt sich nicht auf das Ausführungsbeispiel, sondern ist in der Ausgestaltung des Abgaskrümmers
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- VerbrennungskraftmaschineInternal combustion engine
- 22
- Abgaskrümmerexhaust manifold
- 33
- StirlingmotorStirling engine
- 44
- Generatorgenerator
- 55
- äußere Schaleouter shell
- 66
- innere Schaleinner shell
- 77
- Hohlraumcavity
- 88th
- Kompressionszylindercompression cylinder
- 99
- Kühlercooler
- 1010
- Regeneratorregenerator
- 1111
- Wärmetauscherheat exchangers
- 1212
- Expansionszylinderexpansion cylinder
- 1313
- Verbindungsleitungconnecting line
- 1414
- Verbindungsleitungconnecting line
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 4340872 A1 [0003] DE 4340872 A1 [0003]
- DE 102007062096 A1 [0003] DE 102007062096 A1 [0003]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010009516A DE102010009516A1 (en) | 2010-02-26 | 2010-02-26 | Device for power generation for driving auxiliary units in internal combustion engine, has generator connected with crankshaft of Stirling engine and driven by Stirling engine and generates electrical energy for driving auxiliary units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010009516A DE102010009516A1 (en) | 2010-02-26 | 2010-02-26 | Device for power generation for driving auxiliary units in internal combustion engine, has generator connected with crankshaft of Stirling engine and driven by Stirling engine and generates electrical energy for driving auxiliary units |
Publications (1)
Publication Number | Publication Date |
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DE102010009516A1 true DE102010009516A1 (en) | 2011-09-01 |
Family
ID=44501931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102010009516A Withdrawn DE102010009516A1 (en) | 2010-02-26 | 2010-02-26 | Device for power generation for driving auxiliary units in internal combustion engine, has generator connected with crankshaft of Stirling engine and driven by Stirling engine and generates electrical energy for driving auxiliary units |
Country Status (1)
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DE (1) | DE102010009516A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVR20110187A1 (en) * | 2011-10-04 | 2013-04-05 | Damiano Giuriato | HIGH EFFICIENCY MACHINE FOR THE PRODUCTION OF ENERGY FROM AN EXTERNAL ENERGY SOURCE |
DE102011117356A1 (en) * | 2011-10-29 | 2013-05-02 | Wabco Gmbh | Motor coupling unit e.g. reciprocating piston machine connected with internal combustion engine, has coupling unit that couples torque transmission unit to motor, such that vapor pressure of process fluid of expander is vaporized |
CN103114939A (en) * | 2012-02-20 | 2013-05-22 | 摩尔动力(北京)技术股份有限公司 | Air cylinder phase cycle engine |
CN103114940A (en) * | 2012-02-20 | 2013-05-22 | 摩尔动力(北京)技术股份有限公司 | Air cylinder phase cycle engine |
CN112648106A (en) * | 2019-10-10 | 2021-04-13 | 天津工业大学 | Beta type stirling drive free piston seawater desalination pressurization system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4340872A1 (en) | 1993-12-01 | 1994-06-16 | Heinz Dr Ing Mueller | Engine unit for motor vehicles, generators, etc - with exhaust and heat losses of IC engine used in Stirling motor |
DE102007062096A1 (en) | 2007-12-21 | 2009-06-25 | Siemens Ag | Aggregate e.g. climatic compressor, driving device for e.g. passenger car, has cooling device cooling engine, and another engine that stands in thermal contact with sections of cooling circuit |
-
2010
- 2010-02-26 DE DE102010009516A patent/DE102010009516A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4340872A1 (en) | 1993-12-01 | 1994-06-16 | Heinz Dr Ing Mueller | Engine unit for motor vehicles, generators, etc - with exhaust and heat losses of IC engine used in Stirling motor |
DE102007062096A1 (en) | 2007-12-21 | 2009-06-25 | Siemens Ag | Aggregate e.g. climatic compressor, driving device for e.g. passenger car, has cooling device cooling engine, and another engine that stands in thermal contact with sections of cooling circuit |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVR20110187A1 (en) * | 2011-10-04 | 2013-04-05 | Damiano Giuriato | HIGH EFFICIENCY MACHINE FOR THE PRODUCTION OF ENERGY FROM AN EXTERNAL ENERGY SOURCE |
DE102011117356A1 (en) * | 2011-10-29 | 2013-05-02 | Wabco Gmbh | Motor coupling unit e.g. reciprocating piston machine connected with internal combustion engine, has coupling unit that couples torque transmission unit to motor, such that vapor pressure of process fluid of expander is vaporized |
CN103114939A (en) * | 2012-02-20 | 2013-05-22 | 摩尔动力(北京)技术股份有限公司 | Air cylinder phase cycle engine |
CN103114940A (en) * | 2012-02-20 | 2013-05-22 | 摩尔动力(北京)技术股份有限公司 | Air cylinder phase cycle engine |
CN103114940B (en) * | 2012-02-20 | 2014-12-17 | 摩尔动力(北京)技术股份有限公司 | Air cylinder phase cycle engine |
CN103114939B (en) * | 2012-02-20 | 2015-01-21 | 摩尔动力(北京)技术股份有限公司 | Air cylinder phase cycle engine |
CN112648106A (en) * | 2019-10-10 | 2021-04-13 | 天津工业大学 | Beta type stirling drive free piston seawater desalination pressurization system |
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