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WO2007104087A1 - Moteur à vapeur - Google Patents

Moteur à vapeur Download PDF

Info

Publication number
WO2007104087A1
WO2007104087A1 PCT/AU2007/000292 AU2007000292W WO2007104087A1 WO 2007104087 A1 WO2007104087 A1 WO 2007104087A1 AU 2007000292 W AU2007000292 W AU 2007000292W WO 2007104087 A1 WO2007104087 A1 WO 2007104087A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
water
air
driven engine
heated
Prior art date
Application number
PCT/AU2007/000292
Other languages
English (en)
Inventor
David Ernest Ide
Original Assignee
David Ernest Ide
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
Priority claimed from AU2006901224A external-priority patent/AU2006901224A0/en
Application filed by David Ernest Ide filed Critical David Ernest Ide
Priority to AU2007225001A priority Critical patent/AU2007225001B2/en
Publication of WO2007104087A1 publication Critical patent/WO2007104087A1/fr

Links

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
    • 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
    • F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
    • 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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating

Definitions

  • the present invention relates to a steam driven engine, and in particular an internal steam generating engine, a system incorporating the engine, and a method of operation for said engine.
  • a steam driven engine including a piston reciprocating in a chamber, and means to generate steam in the chamber to drive the piston.
  • the means to generate steam includes a means for heating a water supply, a means for heating an air supply, and a means for mixing the heated air and water in order to create the steam to drive the piston.
  • the invention may be said to reside in a steam driven engine including a reciprocating piston, a means for heating a water supply, a means for heating an air supply, and a means for mixing the heated air and water in order to create the steam to drive the piston, at or near the piston face.
  • the means for heating the air does so by pressurising the air.
  • the means for heating the air does so by compressing the air.
  • the means for heating the air is the compressor of a turbo charger.
  • the means for heating the air is an air compressor.
  • the air is heated to a temperature above the boiling temperature of the water.
  • the means for preheating the water heats the water to a temperature approaching boiling temperature, but not to boiling temperature.
  • the means for preheating the water is an electric heater.
  • the means for preheating the water is a heat exchanger.
  • the piston reciprocates within a chamber, the chamber including an air inlet, a water inlet, and a steam outlet.
  • the heat exchanger utilises steam exhausted from the chamber to heat water prior to its release into the chamber.
  • supplementary heating of the air may be achieved by directing the air through this heat exchanger.
  • the air and the water are mixed in the chamber.
  • the air and water are mixed in the region directly above the piston in the chamber.
  • the means for mixing the heated air and water releases the air into a mist of water to create steam.
  • the means for mixing the heated air and water releases a mist of water into the heated air.
  • the means of mixing the heated air and water releases these simultaneously.
  • the steam outlet is a valve-closed port.
  • the air inlet is a valve-closed port
  • the water inlet is an injector
  • the air inlet is an injector.
  • the invention may be said to reside in a steam driven engine including a piston reciprocating in a chamber, wherein water and heated air are mixed in the chamber so as to generate steam, the generation of which drives the piston.
  • the invention may be said to reside in a method of operation of the steam driven engine above, including the steps of releasing heated, compressed air into the chamber, releasing the heated, misted water into the air creating steam, which then expands and drives the piston down.
  • the air is compressed by the piston prior to the water being released therein.
  • the method includes the steps of releasing the heated, misted water into the chamber, releasing the heated, compressed air into the water creating steam, which then expands and drives the piston down.
  • the method includes the steps of releasing the heated, misted water into and the heated, compressed air into the chamber simultaneously, thereby creating steam, which then expands and drives the piston down.
  • the method further includes the step of shutting off water and air supply to the chamber.
  • the method further includes the step of opening the valve to the exhaust port, and allowing the piston to drive the vapour out of the chamber.
  • the method further includes the step of inducing a fresh charge of air and/or water by utilising the partial vacuum created by the downwardly traveling piston.
  • Figure 1 is a schematic diagram of a system incorporating the engine and its ancillary equipment
  • FIGS 2 through 5 are schematic diagrams illustrating the operating cycle of the engine. in Figure 1 ;
  • Figure 6 is a schematic diagram of a system incorporating the engine and its ancillary equipment according to a further embodiment of the invention.
  • FIG 1 where there is illustrated a steam driven engine 1 , having a piston 2 that is adapted to reciprocate within a bore 4 of an engine block 6, so as to define a closed chamber 8, the volume of which changes as the piston 2 reciprocates.
  • the piston 2 is connected by a connecting rod 10 to a crankshaft 12 so as to convert the reciprocal motion of the piston 2 into rotary motion at the crankshaft 12.
  • the steam utilised to drive the piston 2 is generated in the chamber 8 by mixing heated air and water; but we will consider this process in further detail below.
  • the water supply is pumped from a water reservoir 20 by a pump 22 and through a sequence that includes a water filter 24, a heat exchanger 26 (where the water is heated to a temperature just below boiling temperature), and then a water atomiser/injector 28, which outlets the water as a fine mist into the chamber 8.
  • the air supply is drawn from atmosphere and passed through a sequence that includes an air filter 3O 1 a compressor 32 of a turbocharger 34 (in which the air is pressurised and heated in accordance with Charles's law: "when a gas is compressed its temperature is raised"), over an electric heating element 35, and then to an inlet valve closed port 36 of the chamber 8.
  • a sequence that includes an air filter 3O 1 a compressor 32 of a turbocharger 34 (in which the air is pressurised and heated in accordance with Charles's law: "when a gas is compressed its temperature is raised"), over an electric heating element 35, and then to an inlet valve closed port 36 of the chamber 8.
  • the compressor 32 of the turbocharger 34 should be designed and sized so as to heat the air to a temperature higher than the boiling temperature of water.
  • the electric heating element 25 then is positioned just before the air inlet port 36. Its purpose is to compensate for any heat losses that might occur between the compressor 32 and the inlet port 36, and to ensure that the air is hot enough to create steam when it mixes with the mist of water in the chamber 8.
  • the exhaust steam is exhausted via a valve-closed exhaust port 40 and then through a sequence that includes a turbine 33 of the turbocharger 34, and the heat exchanger 26.
  • the steam is condensed in the heat exchanger 26, and the water is returned to the reservoir 20.
  • a pressure relief valve ensures that pressure in the reservoir is maintained at an acceptable level.
  • the heat exchanger 26 then transfers heat between exhaust steam from the engine 1 and the water supply to the engine.
  • the mechanisms for driving and timing the operation of the inlet and exhaust valves is the same as that used for a conventional internal combustion engine, namely, either one or more overhead camshafts 50, or alternatively a combination of pu ⁇ hrods and rockers, that are mechanically driven by and synchronised with the crankshaft 12.
  • the inlet port 36 is then closed by its valve, and the piston 1 travels upward, further compressing and heating the air (see Figure 3).
  • the hot water 60 is injected into the hot air filled chamber 8 by injector 28 when the piston is at or near top dead centre (TDC), instantly generating steam (or more correctly, water vapour); the resultant expansion in volume (steam has up to 1600 times the volume of water) drives the piston 2 downwards creating a work output at the crankshaft (see Figure 4).
  • TDC top dead centre
  • the exhaust port 40 is opened, and the upward travel of piston 1 , which is derived from the momentum carried by the rotating components, drives the water vapour (air and steam mixture) out of the chamber 8.
  • the exhaust port 40 closes, the inlet port 36 opens, and a fresh charge of heated air is induced, and the cycle restarts.
  • an electric heater 60 is incorporated into the heat exchanger, and an electric motor is used to drive the pump and the compressor.
  • These electric items would be powered by a battery at start up, but it is anticipated that they would be switched of automatically once the system had reached operating pressures and temperatures i.e. all ancillary equipment would then be powered by the engine 1 itself.
  • FIG. 6 where the turbocharger has been replaced by a mechanical or electric air compressor 100 having a storage tank 102.
  • This air compressor may be driven either directly or indirectly (in the case of an electric compressor) by the engine 1.
  • a charge of compressed air from the compressor 100 would then be introduced into the chamber by way of the valve closed inlet port or indeed a suitable injector 104, at the same point in the cycle as described above.
  • air may also be introduced during the exhaust stroke so as to help evacuate the steam or water vapour from the chamber 8.
  • the compressed air supply line may run relative to the water supply line as shown at 108 so that some heating of the water supply takes place, thereby acting in effect, as a heat exchanger.
  • compressed air may be stored in the compressors tank 102 so that it may be used to assist in starting the engine with an air starter (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention concerne un moteur à vapeur comprenant un piston conçu pour aller et venir à l'intérieur d'une chambre et un moyen destiné à mélanger une alimentation en air chauffé et une alimentation en eau chauffée au niveau ou près de la face du piston, afin de produire de la vapeur qui entraînera le piston.
PCT/AU2007/000292 2006-03-10 2007-03-08 Moteur à vapeur WO2007104087A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2007225001A AU2007225001B2 (en) 2006-03-10 2007-03-08 A steam driven engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2006901224A AU2006901224A0 (en) 2006-03-10 A steam driven engine
AU2006901224 2006-03-10

Publications (1)

Publication Number Publication Date
WO2007104087A1 true WO2007104087A1 (fr) 2007-09-20

Family

ID=38508957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/000292 WO2007104087A1 (fr) 2006-03-10 2007-03-08 Moteur à vapeur

Country Status (2)

Country Link
CN (1) CN101400946A (fr)
WO (1) WO2007104087A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011082620A1 (de) * 2011-09-13 2013-03-14 Norbert Kuhl Hubkolbendampfmaschine mit innerer kühlung
CN108266719A (zh) * 2018-02-07 2018-07-10 新昌县海格赛斯贸易有限公司 一种蒸汽余热回收系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106870035B (zh) * 2017-02-24 2018-08-31 河北老贞科技有限责任公司 混合动力外燃式发动机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2255465A2 (en) * 1973-12-05 1975-07-18 Frayret Rene Steam engine with compression cylinders - injects water into cylinders at temp higher than hundred degrees centigrade
US4322950A (en) * 1980-09-22 1982-04-06 Jepsen Marshall P Combined internal combustion and steam engine
GB2110305A (en) * 1981-11-26 1983-06-15 Kershaw H A Apparatus for vaporising a liquid by hot compressed gas to produce power
DE19528900A1 (de) * 1994-08-08 1997-07-24 Christian Kurpiers Dampfmotor
AU5040296A (en) * 1996-03-29 1997-10-02 Samuel Arthur Thomas Woodbridge Multi-cylinder engine
DE19750360A1 (de) * 1997-11-14 1999-05-20 Iav Gmbh Verfahren zum Betreiben einer Dampfkraftmaschine mit Einspritzung von Wasser in einen beheizten Arbeitsraum

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008501083A (ja) * 2004-06-01 2008-01-17 アルバート， ヘンリー ボウ， 機関

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2255465A2 (en) * 1973-12-05 1975-07-18 Frayret Rene Steam engine with compression cylinders - injects water into cylinders at temp higher than hundred degrees centigrade
US4322950A (en) * 1980-09-22 1982-04-06 Jepsen Marshall P Combined internal combustion and steam engine
GB2110305A (en) * 1981-11-26 1983-06-15 Kershaw H A Apparatus for vaporising a liquid by hot compressed gas to produce power
DE19528900A1 (de) * 1994-08-08 1997-07-24 Christian Kurpiers Dampfmotor
AU5040296A (en) * 1996-03-29 1997-10-02 Samuel Arthur Thomas Woodbridge Multi-cylinder engine
DE19750360A1 (de) * 1997-11-14 1999-05-20 Iav Gmbh Verfahren zum Betreiben einer Dampfkraftmaschine mit Einspritzung von Wasser in einen beheizten Arbeitsraum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011082620A1 (de) * 2011-09-13 2013-03-14 Norbert Kuhl Hubkolbendampfmaschine mit innerer kühlung
DE102011082620B4 (de) * 2011-09-13 2014-08-28 Norbert Kuhl Hubkolbendampfmaschine mit innerer kühlung
CN108266719A (zh) * 2018-02-07 2018-07-10 新昌县海格赛斯贸易有限公司 一种蒸汽余热回收系统

Also Published As

Publication number Publication date
CN101400946A (zh) 2009-04-01

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