EP0778917A1 - Moteur a basse temperature - Google Patents

Moteur a basse temperature

Info

Publication number
EP0778917A1
EP0778917A1 EP95924967A EP95924967A EP0778917A1 EP 0778917 A1 EP0778917 A1 EP 0778917A1 EP 95924967 A EP95924967 A EP 95924967A EP 95924967 A EP95924967 A EP 95924967A EP 0778917 A1 EP0778917 A1 EP 0778917A1
Authority
EP
European Patent Office
Prior art keywords
gas
pump
piston
pressure
line
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.)
Withdrawn
Application number
EP95924967A
Other languages
German (de)
English (en)
Inventor
Georg Rauscher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0778917A1 publication Critical patent/EP0778917A1/fr
Withdrawn legal-status Critical Current

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
    • 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

Definitions

  • NTM Low-temperature motor
  • TTM low-temperature motor
  • KM refrigeration engine
  • the solution is a low-temperature heat engine, a low-temperature engine (NTM) or low-temperature engine (TTM), which can also be referred to as a cold engine (KKM), as described in the claims, which not only increases the thermal energy to the usual high, but also to can implement a low temperature level so that usable mechanical energy is obtained.
  • a liquid gas is pumped to a higher pressure level in a closed circuit with a pump 1, then evaporated in an evaporator 4, relaxed in a relaxation machine 8 that delivers useful power, thereby cooled, liquefied in the relaxation machine 8 or in a subsequent expansion device 24 and kept ready in a liquid collector 10 for recirculation.
  • a high-pressure circuit with the bypass line 45 and the bypass valve 44 is operated with liquid gas, which according to (FIG. 5) is supplied by a separate delivery rate from the pump.
  • the pump only has to deliver the small volume of liquid while
  • SPARE BLADE the expansion machine, for example a turbine that processes large gaseous volumes, but the volume ratio is still reduced in accordance with the set back pressure.
  • the gas (boiling or condensation temperature and pressure) as well as the pressure and the pressure drop on the relaxation machine 8 and the temperature level are interrelated and must be matched to the vapor pressure curve.
  • the pump 1 is driven by the expansion machine 8 via a separate motor 14 or from a power take-off.
  • liquid gas In the liquid collector 10 on the low-pressure side, liquid gas must be at a pressure and a temperature at which the gas is liquid in accordance with its vapor pressure curve, so that this becomes
  • the pump 1 with pressure valves 3 pumps a liquid gas from the suction or low pressure line 11 on the LP side into the kHD line 2 on the HP side and into the heat exchanger or evaporator 4.
  • the pressure valves 3 ensure that no gas flows back from the kHD line 2 or the bypass line 45 if the pump design cannot prevent this. So much heat energy 5 is supplied to the evaporator 4 that the gas evaporates even under this increased pressure.
  • the heat of evaporation required for this is absorbed by the evaporator 4 from the environment, from the air, water or other gases, liquids or solids or from a work machine. According to (Fig. 5), the thermal energy for evaporation can at least partly come from the gas itself by converting the rotational energy of the molecules and atoms into thermal motion.
  • the performance of the air heat exchanger can be reduced to a minimum with insulated outer sides and closed and also insulated flaps or blinds.
  • the devices for limiting the temperature of the evaporator 4 are controlled by a heat sensor directly or via a central control.
  • the vaporized gas flows through the WHD line 6 through the throttle element 7 into the expansion machine 8. With the throttle element 7, the gas stream can be heated
  • SPARE BL ⁇ 17 (RULE 26) HD line 6 can be reduced and also shut off.
  • the pressure energy in the gas is reduced to the necessary counter pressure and mechanical work is carried out on the shaft 16.
  • the gas gets colder.
  • the complete expansion down to the low back pressure in the liquid collector 10 and the liquefaction should take place only after the further expansion stage in the expansion element 24 in order to avoid damage, for example due to cavitation in the expansion machine. Liquefaction can be facilitated by the back pressure.
  • liquid gas is additionally expanded via the bypass line 45 and the bypass valve 44.
  • the bypass valve 26 can also open automatically if the pressure in the wHD line 6 is too high, and it also serves as a high-pressure safety valve. If required, a preset portion of the pump output can also be discharged via the bypass line 45 and the bypass valve 44.
  • the bypass valve 44 also serves as an overflow or maximum pressure safety valve if, for example, the pressure in the kHD line 2 or wHD line 6 increases due to the closing of the throttle element 7 as in the bypass line 45 and gas flows through the backflow preventer 43 into the bypass line 45.
  • bypass lines 25 and 45 are also possible when the expansion machine is at a standstill in order to keep the machine cold and ready for operation.
  • the pump 1 is switched on by a pressure or temperature monitor or also by a central control unit when the machine is at a standstill or the output of the pump 1 is increased when the machine is running in order to regulate the self-cooling .
  • the pressure and temperature drop an opposite reaction is triggered.
  • the liquid gas can be heated close to or completely up to the boiling point in the case of severe subcooling in an additional HP heat exchanger 29 after the pump 1, in order to thereby achieve cooling capacity e.g. to use for cooling purposes.
  • An environmentally friendly generator that supplies one or more houses can enforce the decentralized power supply.
  • the heating can also be done electrically instead of gas or oil. Electric heating instead of hot water makes house installation easier and cheaper.
  • SPARE BLADE (RULE 26) The energy dependency on a particular country or region is eliminated. The nuclear hazard and harmful and disruptive high-voltage energy routes as well.
  • NTM NTM
  • working machine e.g. current generator
  • ERSATZBLAH Low-temperature motor (NTM), low-temperature motor (TTM) or refrigeration machine (KKM)
  • Heat exchanger or evaporator 4 is pumped, the power of which can be regulated and evaporated therein or in a plurality of heat exchangers, heat being absorbed by a heat source 5, for example heat from the ambient air or by a working machine 30, then through a wHD line 6 into a nozzle or a throttle element 7, which can be regulated and flows into a relaxation machine 8, is relaxed there and does work, and after the relaxation machine 8, directly or through an additional relaxation stage in a relaxation element 24 in the LP line 9 in a liquid collector 10 flows, and characterized in that by means of a bypass line 25 (FIG. 4) in a parallel circuit past the expansion machine 8, the expansion of vaporized gas in a expansion element, the bypass valve 26 (FIG.
  • bypass valve 44 for example a pressure maintaining valve
  • gas to flow from the kHD line 2 into the bypass line 45, that it flows according to (FIG. 5) via a backflow preventer 43 overflows that the expansion into the LP line 9 or directly into the liquid collector 10 takes place, that according to (FIG. 5) a preset portion of the still liquid gas flows through this bypass line 45 so that this portion flows through the

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

L'invention a pour objet un moteur à basse température pouvant produire, en fonctionnant à basse température, de l'énergie mécanique à partir d'énergie thermique. Son montage peut être réalisé sous forme monobloc ou à partir de ses éléments. Un gaz liquéfié est refoulé, en circuit fermé, par une pompe à plusieurs cylindres (1), sous pression élevée, dans un évaporateur (4) où il est évaporé par alimentation de chaleur (par exemple, chaleur perdue ou chaleur provenant de l'environnement). Le fluide, en phase vapeur ou gazeuse, ainsi formé entraîne un moteur à détente (8) et est refroidi à très basse température et liquéfié par chute de pression élevée. Le gaz peut être envoyé au moteur à détente (8) en passant par un conduit de dérivation (25). Le gaz liquéfié peut déborder dans un conduit de dérivation (45). Les domaines d'application sont comparables à ceux des moteurs à combustion interne de types connus (propulsion automobile, moteurs stationnaires et dispositifs d'alimentation en énergie). Un autre domaine d'application est l'utilisation du moteur à basse température comme machine à énergie frigorifique.
EP95924967A 1994-07-04 1995-07-03 Moteur a basse temperature Withdrawn EP0778917A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1994/002179 WO1996001362A1 (fr) 1994-07-04 1994-07-04 Moteur thermique a basse temperature, moteur a basse temperature

Publications (1)

Publication Number Publication Date
EP0778917A1 true EP0778917A1 (fr) 1997-06-18

Family

ID=8165869

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94924714A Withdrawn EP0775250A1 (fr) 1994-07-04 1994-07-04 Moteur thermique a basse temperature, moteur a basse temperature
EP95924967A Withdrawn EP0778917A1 (fr) 1994-07-04 1995-07-03 Moteur a basse temperature

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP94924714A Withdrawn EP0775250A1 (fr) 1994-07-04 1994-07-04 Moteur thermique a basse temperature, moteur a basse temperature

Country Status (4)

Country Link
EP (2) EP0775250A1 (fr)
AU (2) AU7490894A (fr)
DE (1) DE4481032D2 (fr)
WO (2) WO1996001362A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007113062A1 (fr) * 2006-03-31 2007-10-11 Klaus Wolter Procédé, dispositif et système de conversion d'énergie
EP2044318A1 (fr) * 2006-07-26 2009-04-08 Turner, Geoffrey Russell Systeme d'alimentation en energie
DE102007027572A1 (de) * 2007-06-08 2009-01-08 Samak, Nabil Temperatur-Differenz betriebener Stromgenerator = TDSG
BE1018868A3 (nl) * 2009-08-26 2011-10-04 Schutter Rotterdam B V Inrichting voor de conversie van afvalwarmte van een productieproces naar elektrische energie.
DE102010056196B4 (de) * 2010-12-24 2022-01-27 Daimler Ag Abwärmenutzungsvorrichtung und zugehöriges Betriebsverfahren
DE102011054400B4 (de) * 2011-10-11 2016-11-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Stickstoff-basierter Kreisprozess zur Energiegewinnung während einer lunaren Nacht
FR2996252A1 (fr) * 2012-09-28 2014-04-04 Francois Kneider Dispositif et procede de conversion d'energie thermique en energie cinetique a basse temperature
DE102017105613A1 (de) 2017-03-16 2018-09-20 Volkswagen Aktiengesellschaft Kolbenmaschine und Kreisprozessvorrichtung
DE112018003305A5 (de) 2017-06-30 2020-04-16 Ingo Tjards Kraftwerk zur erzeugung von elektrischer energie

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951352A (en) * 1931-04-24 1934-03-20 Doble Warren Feed fluid controller
FR868124A (fr) * 1940-08-22 1941-12-18 Turbine à gaz
FR992219A (fr) * 1944-05-30 1951-10-16 Procédé et appareil pour la production de force motrice
US3287901A (en) * 1963-11-22 1966-11-29 Atmospheric Energy Ltd Closed cycle power generating apparatus
US3878683A (en) * 1969-07-01 1975-04-22 Kenji Imai Method of cooling substance or generating power by use of liquefied gas
US3681609A (en) * 1970-12-03 1972-08-01 Harold L Boese Non-pollution motors including cryogenic fluid as the motive means
FR2326596A1 (fr) * 1975-10-01 1977-04-29 Piechocki Kurt Moteur thermo-cyclo-moleculaire fonctionnant a l'energie thermique de la temperature ambiante
FR2485085A1 (fr) * 1979-01-29 1981-12-24 Clavier Philippe Machine thermodynamique
DE3602896A1 (de) * 1986-01-31 1987-08-06 Wilhelm Haeberle Verfahren und vorrichtung zur umwandlung von waermeenergie in mechanische energie
DE3943161A1 (de) * 1989-12-28 1991-07-04 Walter Diel Fluessiggasdampfmotoren/-turbinen mit luftwaerme, erdwaerme, wasserwaerme als energietraeger zur krafterzeugung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9601363A1 *

Also Published As

Publication number Publication date
AU2926795A (en) 1996-01-25
WO1996001362A1 (fr) 1996-01-18
WO1996001363A1 (fr) 1996-01-18
EP0775250A1 (fr) 1997-05-28
AU7490894A (en) 1996-01-25
DE4481032D2 (de) 1997-10-02

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