WO2020198768A1 - Combined internal combustion and steam engine - Google Patents

Combined internal combustion and steam engine Download PDF

Info

Publication number
WO2020198768A1
WO2020198768A1 PCT/AT2020/000008 AT2020000008W WO2020198768A1 WO 2020198768 A1 WO2020198768 A1 WO 2020198768A1 AT 2020000008 W AT2020000008 W AT 2020000008W WO 2020198768 A1 WO2020198768 A1 WO 2020198768A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
internal combustion
steam engine
combined
engine according
Prior art date
Application number
PCT/AT2020/000008
Other languages
German (de)
French (fr)
Inventor
Fritz HOFBAUER
Original Assignee
Hofbauer Fritz
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 Hofbauer Fritz filed Critical Hofbauer Fritz
Publication of WO2020198768A1 publication Critical patent/WO2020198768A1/en

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Classifications

    • 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
    • F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
    • F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/04—Engines with prolonged expansion in main cylinders
    • 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
    • F02B75/021—Engines characterised by their cycles, e.g. six-stroke having six or more strokes per cycle
    • 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
    • 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

Definitions

  • Cylinders flow through a recuperator.
  • An internal combustion engine is designed as a six-stroke engine.
  • Regenerator outlet valves (5 and 6) are closed, hot water heated in the cooler circuit heat exchanger is fed into the
  • the water from the condenser is treated and returned

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)

Abstract

Up to now, the waste heat from internal combustion engines has not been used, or has not been used sufficiently, to improve efficiency. The present invention relates to a new solution for increasing efficiency. In a six-stroke internal combustion engine, the exhaust gas from each cylinder flows through a downstream regenerator and further into the exhaust. The exhaust valves in the cylinder head remain open, the regenerator valves are closed, hot water is injected into the regenerator, evaporates, and the steam flows into the cylinder and drives the piston in the fifth stroke. The steam outlet valves open and, in the sixth stroke, the steam flows through the steam turbine and into the condenser and is liquefied. The water from the condenser is treated and reused.

Description

Kombinierter Verbrennungs-und Dampfmotor Combined combustion and steam engine
Beschreibung description
Es gibt in der Patentliteratur zahlreiche Vorschläge zur There are numerous suggestions in the patent literature for
Verbesserung des Wirkungsgrades bei Verbrennungsmotoren Improving the efficiency of internal combustion engines
durch Nutzung der Abwärme .Meist handelt es sich dabei um by using the waste heat. Most of the time it is
Einspritzen von Wasser oder Treibstoff-Wasser Gemisch in Injecting water or a fuel-water mixture into
den Zylinder oder um Erzeugung von Dampf mittels indirektem the cylinder or to generate steam by means of indirect
Wärmetauscher (Rekuperator),wobei die Abgase aus allen Heat exchanger (recuperator), the exhaust gases from all
Zylindern durch einen Rekuperator strömen. Cylinders flow through a recuperator.
Weiters ist der Vorschlag des Einbaues beweglicher Regene= Furthermore, the suggestion of installing movable rain =
ratoren in die Zylinderräume bekannt. known rators in the cylinder chambers.
Es konnte aber kein Verfahren die erwarteten Wirkungsgrad= But no method could achieve the expected efficiency =
Verbesserungen erbringen . Make improvements.
Nach wie vor wird bei Verbrennungsmotoren die Abwärme nicht As before, there is no waste heat in internal combustion engines
oder nicht ausreichend zur Wirkungsgraderhöhung genutzt. or not used sufficiently to increase efficiency.
Hier setzt obige Erfindung an und es wird eine neue, effizientere Lösung zur Wirkungsgraderhöhung vorgeschlagen. This is where the above invention comes into play and a new, more efficient solution for increasing efficiency is proposed.
Ein Verbrennungsmotor wird dabei als Sechstaktmotor ausgefuhrt. An internal combustion engine is designed as a six-stroke engine.
Beim vierten Takt,dem Abgas-Ausschieben strömt das Abgas aus jedem Zylinder(l) durch einen diesem nachgeschalteten Regenera= tor(2) und weiter in den Auspuff(3). During the fourth stroke, the exhaust gas expulsion, the exhaust gas flows out of each cylinder (1) through a regenerator (2) connected downstream of this and then into the exhaust (3).
Die Auspuffventile im Zylinderkopf(4) bleiben geöffnet,die The exhaust valves in the cylinder head (4) remain open
Regenerator-Auslassventile(5 und6)werden geschlossen,heißes, im Kühlerkreislauf-Wärmetauscher erhitztes Wasser wird in den Regenerator outlet valves (5 and 6) are closed, hot water heated in the cooler circuit heat exchanger is fed into the
Regenerator eingespritzt(7) und verdampft .Überdruckventile(8) verhindern Schäden.Der Dampf strömt durch die Auspuffventile im Zylindierkopf(4) in den Zylinder und treibt im fünften Takt den Kolben(9) an.Dabei wird der Dämpf im Zylinderraum(1) überhitzt. Die Dampfauslassventile(6)werden geöffnet und der Dampf strömt im sechsten Takt durch die Dämpfturbine( 10) wird dort entspannt, strömt weiter in den Kondensator(11 ) und wird verflüssigt. Regenerator injected (7) and vaporized. Pressure relief valves (8) prevent damage. The steam flows through the exhaust valves in the cylinder head (4) into the cylinder and drives the piston (9) in the fifth cycle. The damping in the cylinder chamber (1) is overheated. The steam outlet valves (6) are opened and the steam flows in the sixth cycle through the steam turbine (10), where it is expanded, flows further into the condenser (11) and is liquefied.
Das Wasser aus dem Kondensator wird aufbereitet und wieder The water from the condenser is treated and returned
verwendet . used.
Die Abwärme aus Abgas, Zylinderraum und Kühlflüssigkeit wird The waste heat from exhaust gas, cylinder space and cooling liquid is
genutzt. used.
Dadurch wird der Gesamtwirkungsgrad im kombinierten Verbrennungs- und Dampfmotor wesentlich erhöht. This increases the overall efficiency of the combined combustion and steam engine significantly.

Claims

Patentansprüche Claims
1.Kombinierter Verbrennungs-und Dampfmotor mit Regeneratoren in Gehäusen, Wassereinspritzung in diese,Ventile zur Steuerung und Sicherheit und Dampfturbine, 1. Combined combustion and steam engine with regenerators in housings, water injection in these, valves for control and safety and steam turbine,
dadurch gekennzeichnet , daß das Abgas aus jedem Zylinder durch einen diesem nachgeschalteten Regenerator strömt. characterized in that the exhaust gas from each cylinder flows through a regenerator connected downstream of it.
2.Kombinierter Verbrnnungs-und Dampfmotor nach Anspruch 1, dadurch gekennzeichnet,daß die Regeneratoren mit druckfesten Gehäusen versehen sind. 2. Combined combustion and steam engine according to claim 1, characterized in that the regenerators are provided with pressure-resistant housings.
3.Kombinierter Verbrennungs-und Dampfmotor nach Anspruch 1 oder 2, dadurch gekennzeichnet ,daß die Motorabgase aus den Regeneratoren Uber Ventile in den Abgasatrang strömen. 3. Combined internal combustion and steam engine according to claim 1 or 2, characterized in that the engine exhaust gases from the regenerators flow into the exhaust system via valves.
4.Kombinierter Verbrennungs-und Dampfmotor nach einem der Ansprüche 1 bis 3,dadurch gekennzeichnet, daß der Dampf über Ventile in die Dampfturbine strömt. 4. Combined internal combustion and steam engine according to one of claims 1 to 3, characterized in that the steam flows into the steam turbine via valves.
5.Kombinierter Verbrennungs-und Dampfmotor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet , daß die Regeneratoren mit Sicherheitsüberdruckventilen versehen sind. 5. Combined combustion and steam engine according to one of claims 1 to 4, characterized in that the regenerators are provided with safety pressure relief valves.
6.Kombinierter Verbrennungs-und Dampfmotor nach einem der Ansprüche 1 bis 5,dadurch gekennzeichnet, daß die Regeneratoren mit Wassereinspritzdüsen ausgestattet sind. 6. Combined combustion and steam engine according to one of claims 1 to 5, characterized in that the regenerators are equipped with water injection nozzles.
7. Kombinierter Verbrennungs-und Dampfmotor nach Anspruch 6, dadurch gekennzeichnet,daß nach dem Abgas-Ausströmen eine Einspritzung von Wasser in den Regenerator erfolgt. 7. Combined combustion and steam engine according to claim 6, characterized in that after the exhaust gas flows out, water is injected into the regenerator.
8.Kombinierter Verbrennungs-und Dampfmotor nach einem der Ansprüche 1 bis 7,dadurch gekennzeichnet, daß der Dampf in einer Dampfturbine expandiert. 8. Combined internal combustion and steam engine according to one of claims 1 to 7, characterized in that the steam expands in a steam turbine.
PCT/AT2020/000008 2019-03-29 2020-03-27 Combined internal combustion and steam engine WO2020198768A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA118/2019A AT522308B1 (en) 2019-03-29 2019-03-29 Combined combustion and steam engine
ATA118/2019 2019-03-29

Publications (1)

Publication Number Publication Date
WO2020198768A1 true WO2020198768A1 (en) 2020-10-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2018358A (en) * 1978-04-05 1979-10-17 Maschf Augsburg Nuernberg Ag Exhaust-gas turbocharged internal combustion engine
FR2502692A1 (en) * 1981-03-27 1982-10-01 Bergounhoux Marcel Turbine-assisted internal combustion engine - uses gas or steam vaporised by heat of exhaust gases to drive turbine
EP3095984A1 (en) * 2015-05-20 2016-11-23 Volvo Car Corporation An internal combustion engine and a method for controlling such an internal combustion engine
CN108150304A (en) * 2017-12-14 2018-06-12 郭保玉 A kind of utilization method of internal combustion engine and its high-temp waste gas

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB125395A (en) * 1918-04-09 Jean Berruet Henri Improvements in or relating to Internal Combustion Engines.
DE2926970A1 (en) * 1979-07-04 1981-01-15 Wilhelm Haeberle Reciprocating IC engine with water injection - has regenerative heat exchanger in exhaust valve port to raise steam to increase output
EP0142580A1 (en) * 1983-11-21 1985-05-29 Olof Alfred Hallstrom, Jr. Combination internal combustion and steam engine
WO2010030864A2 (en) * 2008-09-11 2010-03-18 Will Weldon Mathews Hybrid combustion energy conversion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2018358A (en) * 1978-04-05 1979-10-17 Maschf Augsburg Nuernberg Ag Exhaust-gas turbocharged internal combustion engine
FR2502692A1 (en) * 1981-03-27 1982-10-01 Bergounhoux Marcel Turbine-assisted internal combustion engine - uses gas or steam vaporised by heat of exhaust gases to drive turbine
EP3095984A1 (en) * 2015-05-20 2016-11-23 Volvo Car Corporation An internal combustion engine and a method for controlling such an internal combustion engine
CN108150304A (en) * 2017-12-14 2018-06-12 郭保玉 A kind of utilization method of internal combustion engine and its high-temp waste gas

Also Published As

Publication number Publication date
AT522308B1 (en) 2021-02-15
AT522308A1 (en) 2020-10-15

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