WO1999025956A1 - Method for operating a steam engine by injecting water into a heated working area - Google Patents
Method for operating a steam engine by injecting water into a heated working area Download PDFInfo
- Publication number
- WO1999025956A1 WO1999025956A1 PCT/DE1998/003318 DE9803318W WO9925956A1 WO 1999025956 A1 WO1999025956 A1 WO 1999025956A1 DE 9803318 W DE9803318 W DE 9803318W WO 9925956 A1 WO9925956 A1 WO 9925956A1
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- WIPO (PCT)
- Prior art keywords
- water
- pressure
- cylinder
- injected
- dead center
- Prior art date
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Classifications
-
- 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
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/02—Steam engine plants not otherwise provided for with steam-generation in engine-cylinders
-
- 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
- F01B29/00—Machines or engines with pertinent characteristics other than those provided for in preceding main groups
- F01B29/08—Reciprocating-piston machines or engines not otherwise provided for
- F01B29/10—Engines
- F01B29/12—Steam engines
Definitions
- the invention relates to a method for operating a steam engine with the injection of water into a heated work space according to the preamble of the main claim.
- Generic steam engines are previously known from the documents DE-PS 828 988 and DE 27 43 584 A1 in whose cylinder-piston unit, after metered water injection, steam is generated with the supply of heat in a heated cylinder chamber.
- the heat is supplied to the cylinder-piston element via cylinder ribs by means of an open burner on the cylinder head and on the cylinder in the stroke area of an insulated heat head which is arranged on the piston and is insulated towards the inside.
- the heat is supplied via a heated pipe arrangement which is arranged in the cylinder head and the spaces between which form the compression space of the cylinder element.
- the steam charge is expanded with the supply of heat from the cylinder head and the cylinder element.
- the outlet for the expanding steam forms in the area of bottom dead center through the pistons released slots.
- Pressure and temperature can be so high that the water is injected into the cylinder chamber in a supercritical, quasi-liquid vapor state.
- the injected, quasi-liquid vapor evaporates with high compression in the upper cylinder area, the compressed residual charge of the previous work cycle is also heated, increasing the pressure
- the work on the piston is carried out by the expansion of the charge in the cylinder, which consists of the water injected and then evaporated at this work cycle and the remaining charge
- the invention has for its object to provide a working method for a steam engine with both high internal and external process heat supply, the operating parameters are adapted to mechanical engineering and material technology as well as low-pollution combustion conditions for heat generation This object is achieved by the process parameters mentioned in the characterizing part of the main claim.
- the combination according to the invention of the application of supplying internal process heat by injecting supercritical water vapor in its quasi-liquid form and external process heat by supplying heat via the cylinder and cylinder head into the working cylinder permits rapid power modulation from work cycle to work cycle With a delay, the internal and external power supply rates can be changed for the same power, for example to optimize the overall efficiency of the machine
- the method according to the invention is used for steam engines which are operated with the injection of water in the area of top dead center into a heated cylinder or work space.
- the water is evaporated in the work space and the evaporated water is released in the area around bottom dead center Exhaust valves
- the amount of water injected can be varied according to the set load.
- water is injected as water vapor in the quasi-liquid, supercritical state at high admission pressure and high temperature into the cylinder chamber when the piston is in the area of top dead center against the pressure in the cylinder chamber still the external heat supply to the cylinder piston unit and thus to the work space and its charge.
- the temperature in the compression space is thus high when passing through the area around top dead center and in the work space when relaxation begins r as the temperature of the vapor injected in the quasi-liquid state Residual filling and compression as well as the cylinder pressure in the TDC position of the piston and the compression temperature can be adjusted for the purpose of regulating the performance of the machine by means of a variable exhaust control
- a temperature of up to 1000 ° C can be set in the heated compression and working chamber of the cylinder-piston unit when the piston is in the TDC position. This is possible if ceramic or carbon-containing materials are preferably used for the displacer on the piston
- preheated water is demanded in a heated pressure storage circuit with such a high temperature and high pre-pressure that it is heated to a quasi-liquid, supercritical vapor state
- the quasi-liquid vapor is injected from this pressure storage circuit into the cylinder space and from this charge, which is subsequently heated and expanded
- the steam injected in the supercritical liquid state can be conditioned in the range of over 220.4 bar pressure and with temperatures above 374 ° C. In these areas of pressure and temperature, common metallic materials can be used for the necessary pressure accumulator or the high pressure generator.
- the admission pressure and temperature in the heated pressure storage circuit for the steam injected in the quasi-liquid state can be regulated depending on the set output, the temperature state of the cylinder-piston unit, and the cylinder pressure before TDC.This means that less effort can be achieved for the heat supply and pressure generation in the operating range of part load
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a method for operating a steam engine by injecting water into a heated working area in the region of the upper dead center and by successive release of pressure and load alleviation in the region around the upper dead center, whereby the injected water quantity can be varied according to the load setting. The aim of the invention is to provide a working method with both a higher internal and external processed heat conduction whose operating parameters are adapted to engine construction and material technology conditions as well as to low-polluting combustion conditions for the generation of heat. According to the invention, this is achieved by the following characteristics: Water is injected in an overheated quasi liquid state, under high initial pressure and subjected to a high temperature into the cylinder area with a pressure which exceeds that of the cylinder area when the piston is located near the upper dead center. In the region of the upper dead center and at the beginning of tension release, the temperature of the cylinder piston unit is higher than that of the water in the overheated quasi liquid state.
Description
Verfahren zum Betreiben einer Dampfkraftmaschine mit Einspritzung von Wasser in einen beheizten ArbeitsraumMethod for operating a steam engine with the injection of water into a heated work space
Die Erfindung betrifft ein Verfahren zum Betreiben einer Dampfkraftmaschine mit Einspritzung von Wasser in einen beheizten Arbeitsraum gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a method for operating a steam engine with the injection of water into a heated work space according to the preamble of the main claim.
Vorbekannt sind gattungsgemäße Dampfkraftmaschinen durch die Schriften DE-PS 828 988 und DE 27 43 584 A1 in deren ZylinderKolbeneinheit nach dosierter Wassereinspritzung die Dampferzeugung unter Wärmezufuhr in einem beheizten Zylinderraum erfolgt.Generic steam engines are previously known from the documents DE-PS 828 988 and DE 27 43 584 A1 in whose cylinder-piston unit, after metered water injection, steam is generated with the supply of heat in a heated cylinder chamber.
Bei der Konstruktion gemäß der Schrift DE-PS 828 988 erfolgt die Wärmezufuhr zum Zylinder-Kolbenelement über Zylinderrippen mittels eines offenen Brenners am Zylinderkopf und am Zylinder im Hubbereich eines isolierten Wärmekopfes, der auf dem Kolben angeordnet und nach seiner Innenseite hin isoliert ist. Bei der Maschine gemäß der Schrift DE 27 43 584 A1 erfolgt die Wärmezufuhr über eine geheizte Rohranordnung, die im Zylinderkopf angeordnet ist und deren Zwischenräume den Verdichtungsraum des Zylinderelementes bilden.In the construction according to the document DE-PS 828 988, the heat is supplied to the cylinder-piston element via cylinder ribs by means of an open burner on the cylinder head and on the cylinder in the stroke area of an insulated heat head which is arranged on the piston and is insulated towards the inside. In the machine according to the document DE 27 43 584 A1, the heat is supplied via a heated pipe arrangement which is arranged in the cylinder head and the spaces between which form the compression space of the cylinder element.
Bei beiden Dampfkraftmaschinenausführungen erfolgt eine Expansion der Dampfladung unter Wärmezufuhr von dem Zylinderkopf und dem Zylinderelement. Den Auslaß für den expandierenden Wasserdampf bilden im Bereich des unteren Totpunktes durch den Kolben freigegebene Schlitze.In both steam engine designs, the steam charge is expanded with the supply of heat from the cylinder head and the cylinder element. The outlet for the expanding steam forms in the area of bottom dead center through the pistons released slots.
Nachteilig ist, daß die spezifisch hohe Verdampfungswärmemenge für das dosiert eingespritzte Wasser durch Wärmezufuhr über die beheizten Zylinderraumflächen bzw. Wärmetauscherflächen im Verdichtungsraum zugeführt werden muß.
Vorbekannt ist durch die Schrift DE 30 49 024 A1 ein Kolbenmotor, bei dem aus einem beheizten Drucksystem erhitztes Wasser unter einem solchen Druck in den Verdichtungsraum einspritzt wird, daß ein Ausdampfen vor dem Einspritzen in den Zylinderraum unterbleibt und erst eine Expansion und ein Verdampfen im Zylinderraum erfolgtIt is disadvantageous that the specifically high amount of evaporation heat for the metered injected water has to be supplied by supplying heat via the heated cylinder space surfaces or heat exchanger surfaces in the compression space. Known from the document DE 30 49 024 A1 is a piston engine, in which water heated from a heated pressure system is injected into the compression chamber under such a pressure that evaporation before injection into the cylinder chamber is prevented and expansion and evaporation in the cylinder chamber are not carried out he follows
Druck und Temperatur können so hoch sein, daß das Wasser in einem überkritischen, quasi flussigen Dampfzustand in den Zylinderraum eingespritzt wird Beim Verdampfen des eingespritzten, quasi flussigen Dampfes bei hoher Verdichtung im oberen Zylinderbereich wird auch die verdichtete Restladung des vorherigen Arbeitstaktes unter Druckerhohung erhitztPressure and temperature can be so high that the water is injected into the cylinder chamber in a supercritical, quasi-liquid vapor state.When the injected, quasi-liquid vapor evaporates with high compression in the upper cylinder area, the compressed residual charge of the previous work cycle is also heated, increasing the pressure
Die Arbeitsabgabe an den Kolben erfolgt durch die Expansion der Ladung im Zylinder, die aus dem zu diesem Arbeitstakt eingespritzten und dann verdampften Wasser und der Restladung bestehtThe work on the piston is carried out by the expansion of the charge in the cylinder, which consists of the water injected and then evaporated at this work cycle and the remaining charge
Bei dieser Maschinenausfuhrung wird zwar Dampf im quasi flussigen Zustand mit mit hohem Warme- und Druckniveau dem Zylinderrraum zugeführt, jedoch die Flachen des Arbeitsraumes werden nicht zur Warmezufuhrung genutztWith this type of machine, steam is supplied to the cylinder space in a quasi-liquid state with a high level of heat and pressure, but the surfaces of the work space are not used to supply heat
Der Erfindung liegt die Aufgabe zugrunde, für eine Dampfkraftmaschine ein Arbeitsverfahren mit sowohl hoher innerer und äußerer Prozeßwarmezufuhrung zu schaffen, dessen Betriebsparameter maschinenbau- und materialtechnischen Gegebenheiten sowie schadstoffarmen Verbrennungsbedingungen für die Warmeerzeugung angepaßt sind
Diese Aufgabe wird durch die im kennzeichnenden Teil des Hauptanspruches genannten Verfahrensparameter gelost Die erfindungsgemaße Kombination der Anwendung von Zufuhrung innerer Prozeßwarme durch Einspritzen von überkritischen Wasserdampf in seiner quasi flussigen Form und äußerer Prozeßwarme durch die Warmezufuhrung über den Zylinder und Zylinderkopf in den Arbeitszylinder gestattet eine schnelle Leistungsmodulation von Arbeitspiel zu Arbeitsspiel Mit zeitlichem Verzug können die inneren und äußeren Leistungszufuhrungsraten für gleiche Leistung verändert werden, um beispielsweise den Gesamtwirkungsgrad der Maschine zu optimierenThe invention has for its object to provide a working method for a steam engine with both high internal and external process heat supply, the operating parameters are adapted to mechanical engineering and material technology as well as low-pollution combustion conditions for heat generation This object is achieved by the process parameters mentioned in the characterizing part of the main claim. The combination according to the invention of the application of supplying internal process heat by injecting supercritical water vapor in its quasi-liquid form and external process heat by supplying heat via the cylinder and cylinder head into the working cylinder permits rapid power modulation from work cycle to work cycle With a delay, the internal and external power supply rates can be changed for the same power, for example to optimize the overall efficiency of the machine
Die in den Unteranspruchen genannten Einzelheiten zur Verfahrensdurchfuhrung und -beeinflusssung werden in der nachfolgenden Beschreibung zusammen mit ihren Wirkungen erläutertThe details given in the subclaims for carrying out and influencing the method are explained in the following description together with their effects
Das erfindungsgemaße Verfahren wird für Dampfkraftmaschinen eingesetzt, die mit Einspritzung von Wasser im Bereich des oberen Totpunktes in einen beheizten Zylinder- bzw Arbeitsraum betrieben werden Im Arbeitsraum erfolgt ein Verdampfen des Wassers und eine Entspannung des verdampften Wassers Im Bereich um den unteren Totpunkt erfolgt eine Entlastung über Auslaßsch tze Entsprechend der eingestellten Last ist die eingespritzte Wassermenge variierbar Erfindungsgemaß wird Wasser als Wasserdampf im quasi flussigen, überkritischen Zustand bei hohem Vordruck und hoher Temperatur in den Zylinderraum bei einer Stellung des Kolbens im Bereich des oberen Totpunktes gegen den Druck im Zylinderraum eingespritzt Zusätzlich erfolgt jedoch noch die äußere Warmezufuhrung zur Zylinderkolbenemheit und damit zum Arbeitsraum und dessen Ladung Die Temperatur ist hierdurch im Verdichtungsraum beim Durchlaufen des Bereiches um den oberen Totpunkt und im Arbeitsraum beim Beginnen des Entspannens hoher als die Temperatur des im quasi flussigen Zustand eingespritzten Dampfes
Restfullung und Verdichtung sowie damit der Zylinderdruck in OT-Stellung des Kolbens und die Verdichtungstemperatur können zum Zwecke einer Leistungsregelung der Maschine mittels einer variablen Auslaßsteuerung eingestellt werdenThe method according to the invention is used for steam engines which are operated with the injection of water in the area of top dead center into a heated cylinder or work space. The water is evaporated in the work space and the evaporated water is released in the area around bottom dead center Exhaust valves The amount of water injected can be varied according to the set load. According to the invention, water is injected as water vapor in the quasi-liquid, supercritical state at high admission pressure and high temperature into the cylinder chamber when the piston is in the area of top dead center against the pressure in the cylinder chamber still the external heat supply to the cylinder piston unit and thus to the work space and its charge. The temperature in the compression space is thus high when passing through the area around top dead center and in the work space when relaxation begins r as the temperature of the vapor injected in the quasi-liquid state Residual filling and compression as well as the cylinder pressure in the TDC position of the piston and the compression temperature can be adjusted for the purpose of regulating the performance of the machine by means of a variable exhaust control
Im beheizten Verdichtungs- und Arbeitsraum der Zylinder-Kolbeneinheit ist bei OT- Stellung des Kolbens eine Temperatur bis 1000°C einstellbar Dies ist bei vorzugsweiser Verwendung von keramischen bzw kohlenstoffhaltigen Materialien für den Verdranger auf den Kolben möglichA temperature of up to 1000 ° C can be set in the heated compression and working chamber of the cylinder-piston unit when the piston is in the TDC position. This is possible if ceramic or carbon-containing materials are preferably used for the displacer on the piston
Temperaturen von 1000°C können wirtschaftlich mit fast schadstoffreien Brennverfahren erreicht werdenTemperatures of 1000 ° C can be reached economically with almost pollutant-free combustion processes
Vorgewärmtes Wasser wird im flussigen Zustand lastabhangig mengenbemessen in einen beheizten Druckspeicherkreis mit so hoher Temperatur und hohem Vordruck gefordert, daß es in diesem auf einen quasi flussigen, überkritischen Dampfzustand erwärmt wirdDepending on the load, preheated water is demanded in a heated pressure storage circuit with such a high temperature and high pre-pressure that it is heated to a quasi-liquid, supercritical vapor state
Aus diesem Druckspeicherkreis erfolgt vor bzw bei Beginn eines Arbeitstaktes eine Einspritzung des quasi flussigen Dampfes in den Zylinderraum und daraus Ladung, die nachfolgend erwärmt und expandiert wirdBefore or at the start of an operating cycle, the quasi-liquid vapor is injected from this pressure storage circuit into the cylinder space and from this charge, which is subsequently heated and expanded
Der im überkritischen flussigen Zustand eingespritzte Dampf ist im Bereich von über 220,4 bar Druck und mit Temperaturen oberhalb von 374°C zu konditionieren In diesen Bereichen von Druck und Temperatur sind übliche metallische Werkstoffe für den notwendigen Druckspeicher bzw den Hochdruckerzeuger einsetzbar
Vordruck und Temperatur im beheizten Druckspeicherkreis für den im quasi flussigen Zustand eingespritzten Dampf können in Abhängigkeit der eingestellten Leistung, des Temperaturzustandes der Zylinder-Kolbeneinheit, des Zylinderdruckes vor OT geregelt werden Damit ist geringerer Leistungsaufwand für die Wärmezufuhr und die Druckerzeugung im Betriebsbereich von Teillast erzielbar
The steam injected in the supercritical liquid state can be conditioned in the range of over 220.4 bar pressure and with temperatures above 374 ° C. In these areas of pressure and temperature, common metallic materials can be used for the necessary pressure accumulator or the high pressure generator The admission pressure and temperature in the heated pressure storage circuit for the steam injected in the quasi-liquid state can be regulated depending on the set output, the temperature state of the cylinder-piston unit, and the cylinder pressure before TDC.This means that less effort can be achieved for the heat supply and pressure generation in the operating range of part load
Claims
Patentansprücheclaims
1 Verfahren zum Betreiben einer Dampfkraftmaschine mit Einspritzung von Wasser in einen beheizten Arbeitsraum im Bereich des oberen Totpunktes und nachfolgender Entspannung und Ladungsentlastung im Bereich um den unteren Totpunkt, wobei entsprechend der Laststellung die eingespritzte Wassermenge variierbar ist, dadurch gekennzeichnet durch folgende Merkmale1 Method for operating a steam engine with injection of water into a heated work area in the area of top dead center and subsequent relaxation and charge relief in the area around bottom dead center, the amount of water injected being variable according to the load position, characterized by the following features
- Wasser wird im überhitzten quasi flussigen Zustand unter hohem Vordruck und hoher Temperatur in den Zylinderraum bei einer Stellung des Kolbens um den oberen Totpunkt mit Überdruck gegenüber dem Zylinderraum eingespritzt, (die Temperatur der Zylinderkolbenemheit ist im Bereich des oberen Totpunktes und beim Beginnen des Entspannens hoher als die des Wassers im überhitzten quasi flussigen Zustand- Water is injected into the cylinder chamber in the superheated, quasi-liquid state under high pre-pressure and high temperature when the piston is positioned around top dead center with overpressure relative to the cylinder chamber, (the temperature of the cylinder piston unit is higher in the area of top dead center and when starting to relax than that of the water in the overheated quasi-liquid state
2 Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß vorgewärmtes Wasser im flussigen Zustand lastabhangig bemessen in einen beheizten Druckspeicherkreis mit hoher Temperatur und hohem Vordruck gefordert wird und aus diesem für jeden Zylinderarbeitstakt in den Zylinderraum eingespritzt wird2 The method according to claim 1, characterized in that preheated water in the liquid state, depending on the load, is required in a heated pressure storage circuit with high temperature and high admission pressure and is injected therefrom into the cylinder space for each cylinder working cycle
3 Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß im beheizten Druckspeicherkreis Vordruck und Temperatur für das im quasi flussigen Zustand einzuspritzende Wasser einstellbar sind
Verfahren nach einem oder mehreren der vorherigen Ansprüche dadurch gekennzeichnet, daß Vordruck und Temperatur im beheizten Druckspeicherkreis für das im flussigen Zustand einzuspritzende Wasser in Abhängigkeit der Zylindertemperatur einstellbar sind3 The method according to claim 1 and 2, characterized in that in the heated pressure storage circuit admission pressure and temperature for the water to be injected in the quasi-liquid state are adjustable Method according to one or more of the preceding claims, characterized in that the admission pressure and temperature in the heated pressure storage circuit can be set as a function of the cylinder temperature for the water to be injected in the liquid state
Verfahren nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß mittels einer variablen Auslaßsteuerung der Zylinderdruck vor OT einstellbar istMethod according to one or more of the preceding claims, characterized in that the cylinder pressure can be adjusted before TDC by means of a variable exhaust control
Verfahren nach einem oder mehreren der vorherigen Ansprüche dadurch gekennzeichnet, daß Vordruck und Temperatur im beheizten Druckspeicherkreis für das im flussigen Zustand einzuspritzende Wasser in Anbhangigkeit des Zylinderdruckes vor OT einstellbar sindMethod according to one or more of the preceding claims, characterized in that the admission pressure and temperature in the heated pressure storage circuit for the water to be injected in the liquid state can be set in relation to the cylinder pressure before TDC
Verfahren nach einem oder mehreren der vorherigen Ansprüche dadurch gekennzeichnet, daß das im quasi flussigen Zustand einzuspritzende Wasser mit einem Druck im Bereich über 220,4 bar Druck und mit Temperaturen im Bereich oberhalb 374°C konditionierbar istMethod according to one or more of the preceding claims, characterized in that the water to be injected in the quasi-liquid state can be conditioned with a pressure in the range above 220.4 bar and with temperatures in the range above 374 ° C
Verfahren nach einem oder mehreren der vorherigen Ansprüche dadurch gekennzeichnet, im beheizten Arbeitsraum im Bereich des oberen Totpunktes eine Temperatur bis 1000°C einstellbar ist
Method according to one or more of the preceding claims, characterized in that a temperature of up to 1000 ° C can be set in the heated work area in the area of top dead center
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19750360.8 | 1997-11-14 | ||
| DE1997150360 DE19750360A1 (en) | 1997-11-14 | 1997-11-14 | Water-injection steam engine operating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999025956A1 true WO1999025956A1 (en) | 1999-05-27 |
Family
ID=7848651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1998/003318 WO1999025956A1 (en) | 1997-11-14 | 1998-11-12 | Method for operating a steam engine by injecting water into a heated working area |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19750360A1 (en) |
| WO (1) | WO1999025956A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105288A1 (en) * | 2009-03-15 | 2010-09-23 | Ivec Pty Ltd | Thermal engine using an external heat source |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104087A1 (en) * | 2006-03-10 | 2007-09-20 | David Ernest Ide | A steam driven engine |
| AU2007225001B2 (en) * | 2006-03-10 | 2012-03-22 | Bluegreen Power Technologies Pty Ltd | A steam driven engine |
| US10018078B2 (en) * | 2009-05-21 | 2018-07-10 | Richard E. Aho | Apparatus for recovering energy from water |
| DE102013013807A1 (en) * | 2013-07-23 | 2015-01-29 | Fikret Güloglu | Evaporation reciprocating engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE689961C (en) * | 1937-08-06 | 1940-04-10 | Kloeckner Humboldt Deutz Akt G | Steam engine with steam formation in the cylinder |
| CH243903A (en) * | 1944-09-23 | 1946-08-15 | Treiber Hermann | Method and device for operating steam engines. |
| DE828988C (en) | 1949-11-01 | 1952-01-21 | Siegfried Grantz Dr Ing | Steam engine with steam generation in the cylinder |
| DE1909007A1 (en) * | 1969-02-22 | 1970-08-27 | Augsburg Nuernberg Ag Zweignie | Method and device for operating a reciprocating thermal engine |
| US4077214A (en) * | 1976-08-16 | 1978-03-07 | Burke Jr Jerry Allen | Condensing vapor heat engine with constant volume superheating and evaporating |
| DE2743584A1 (en) | 1977-09-28 | 1979-04-05 | Cycle Ass | High performance reciprocating steam engine - has indirect heater in cylinder head to vaporise water with controlled exhaust quantity |
| DE3049024A1 (en) | 1980-08-18 | 1982-03-25 | Thermal Systems Ltd., Grand Cayman, Cayman Islands, Britisch Westindien | "INTERNAL COMBUSTION ENGINE WITH EXTERNAL COMBUSTION" |
-
1997
- 1997-11-14 DE DE1997150360 patent/DE19750360A1/en not_active Withdrawn
-
1998
- 1998-11-12 WO PCT/DE1998/003318 patent/WO1999025956A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE689961C (en) * | 1937-08-06 | 1940-04-10 | Kloeckner Humboldt Deutz Akt G | Steam engine with steam formation in the cylinder |
| CH243903A (en) * | 1944-09-23 | 1946-08-15 | Treiber Hermann | Method and device for operating steam engines. |
| DE828988C (en) | 1949-11-01 | 1952-01-21 | Siegfried Grantz Dr Ing | Steam engine with steam generation in the cylinder |
| DE1909007A1 (en) * | 1969-02-22 | 1970-08-27 | Augsburg Nuernberg Ag Zweignie | Method and device for operating a reciprocating thermal engine |
| US4077214A (en) * | 1976-08-16 | 1978-03-07 | Burke Jr Jerry Allen | Condensing vapor heat engine with constant volume superheating and evaporating |
| DE2743584A1 (en) | 1977-09-28 | 1979-04-05 | Cycle Ass | High performance reciprocating steam engine - has indirect heater in cylinder head to vaporise water with controlled exhaust quantity |
| DE3049024A1 (en) | 1980-08-18 | 1982-03-25 | Thermal Systems Ltd., Grand Cayman, Cayman Islands, Britisch Westindien | "INTERNAL COMBUSTION ENGINE WITH EXTERNAL COMBUSTION" |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105288A1 (en) * | 2009-03-15 | 2010-09-23 | Ivec Pty Ltd | Thermal engine using an external heat source |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19750360A1 (en) | 1999-05-20 |
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