EP0665941B1 - Wärme- und kältemaschine - Google Patents

Wärme- und kältemaschine Download PDF

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Publication number
EP0665941B1
EP0665941B1 EP94926850A EP94926850A EP0665941B1 EP 0665941 B1 EP0665941 B1 EP 0665941B1 EP 94926850 A EP94926850 A EP 94926850A EP 94926850 A EP94926850 A EP 94926850A EP 0665941 B1 EP0665941 B1 EP 0665941B1
Authority
EP
European Patent Office
Prior art keywords
heat
housing
working volume
dividing wall
heating
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.)
Expired - Lifetime
Application number
EP94926850A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0665941A1 (de
Inventor
Peter Hofbauer
Klaus Heikrodt
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.)
Robert Bosch GmbH
Viessmann Werke GmbH and Co KG
Original Assignee
Robert Bosch GmbH
Viessmann Werke GmbH and Co KG
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 Robert Bosch GmbH, Viessmann Werke GmbH and Co KG filed Critical Robert Bosch GmbH
Publication of EP0665941A1 publication Critical patent/EP0665941A1/de
Application granted granted Critical
Publication of EP0665941B1 publication Critical patent/EP0665941B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling 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
    • 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
    • F02G1/044—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 having at least two working members, e.g. pistons, delivering power output
    • F02G1/0445—Engine plants with combined cycles, e.g. Vuilleumier
    • 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
    • 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
    • F02G1/053—Component parts or details
    • F02G1/057—Regenerators
    • 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
    • F02G2250/00—Special cycles or special engines
    • F02G2250/18—Vuilleumier cycles

Definitions

  • the invention relates to a regenerative Gas cycle heat and chiller working with two In a pressure-tight housing, the piston moves linearly together limit a warm work volume and of which the one piston in the housing is a hot one, with warmth applied working volume and the other piston cold working volume limited, the three Working volumes with the interposition of regenerators and heat exchangers are interconnected and a Drive and / or a control for the pistons provided is, and wherein the hot working volume, the heat is supplied via a partition which also forms part of a pressure-tight housing.
  • U.S. Patent No. 5,214,923 discloses a Vuilleumier heat pump described, consisting essentially of a double-walled cylindrical housing is constructed, the inner Cylinder chamber takes up the two displacement pistons while in the outer cylinder space that the individual working volumes assigned regenerators and heat exchangers are.
  • the object is a heat and Chiller of the type defined in the beginning to further develop that there is a good entry of heat into the hot working volume with small external dimensions and high Compressive strength of the components involved results in that a little to improve heat transfer Should have wall thickness.
  • the solution to this problem by the invention is characterized in that the partition as rotationally symmetrical conic section, in particular hemisphere, executed and connected to the housing in a heat-insulating manner and that a heat generator is provided, the one Has reaction surface that the operation of the Heat generator glows, so that a large part of the entered Heat is transmitted through radiation.
  • the shape of the partition is obtained with high compressive strength heat transfer surface on the one hand given Outside dimensions large surface and on the other hand the Possibility to choose a small wall thickness to the To improve heat input. Due to the thermal insulation of the arched partition opposite the housing becomes a Efficient heat dissipation from the partition prevented in the housing and thus to the environment. Of the Heat generator for the heat to be entered has a Reaction surface on the operation of the heat generator glows. This means that a large part of the heat to be introduced is removed Radiation transmitted, which changes the dimensions of the can reduce the heating and cooling machine according to the invention.
  • the hot piston according to the invention one adapted to the contour of the curved partition Piston bottom executed, whereby by the curvature of the Piston bottom with the same strength at the same time Wall thickness can be reduced so that the weight of the hot Piston can be reduced.
  • the machine shown in longitudinal section in Fig. 1 comprises a pressure-tight housing 1 designed as a circular cylinder, which is provided with a flange la at one end, to which a motor housing 2 with a corresponding flange 2a is screwed on.
  • the motor housing 2 is only partially shown.
  • the pressure-tight housing 1 with one Provided housing cover 4, which in the exemplary embodiment Thread is screwed to the cylindrical housing 1 and in which a heat generator in the form of a gas burner 5 is arranged.
  • This gas burner comprises a cylindrical one Supply pipe 5a for the fuel gas, the outlet side with a metering hemisphere 5b is provided.
  • Concentric too this dosing hemisphere 5b is a reaction surface acting burner surface 5c made of a stainless steel mesh arranged, which limits the gas inflow chamber and at Operation of the gas burner glows, so that the gas burner 5 one Most of the heat generated is emitted by radiation.
  • the resulting flue gases become hemispherical Burner surface 5c surrounding combustion chamber 5d through an exhaust pipe 5e deducted, the supply pipe 5a of the gas burner 5 concentric surrounds.
  • the heat generated by the gas burner 5 is generated by radiation and Convection given to a partition 6, which is rotationally symmetrical Conic section, in the embodiment as Hemisphere is designed and located inside the case 1 bulges.
  • a partition 6, which is rotationally symmetrical Conic section, in the embodiment as Hemisphere is designed and located inside the case 1 bulges.
  • the partition designed as part of the pressure-tight housing 1 6 is attached to a support ring 6a, which has a membrane-like extension 6b with the end of the cylindrical Housing 1 is connected. In the embodiment both connections by welding.
  • Isolation rings 7a and 7b each on one side of the membrane-like extension 6b on the one hand to the housing cover 4 and on the other hand to the housing 1, the Heat dissipation from that heated by the gas burner 5 Partition 6 to the housing 1 and its housing cover 4 and thus significantly reduced to the environment.
  • the heat generated by the gas burner 5 and absorbed by the partition is given off from the inside of the partition 6 to a working medium, preferably helium, which is in a hot working volume V h .
  • This hot working volume is limited on the one hand by the partition 6 and on the other hand by the piston crown 8a of a piston 8 which is arranged in the housing 1 so as to be linearly movable.
  • This piston 8 is connected via a piston rod 8b to a motor or controller arranged in the motor housing 2, which are not shown in the drawing.
  • These three volumes are interconnected with the interposition of regenerators R h , R k and heat exchangers W w , W k .
  • the regenerator R h arranged in the hot part of the housing 1 stores part of the heat given off to the hot working volume V h during the course of the regenerative gas cycle process; the regenerator R k arranged in the cold part of the housing 1 performs the corresponding function with regard to the cold working volume V k .
  • the heat exchanger W k which is arranged in a stationary manner on the base 3 within the cold piston 9, is continuously supplied with a medium taken from the environment via a line 3 a arranged in the base 3, which medium is returned to the environment via a line 3 b after a portion of its heat content has been extracted becomes.
  • the heat exchanger W w is fed through connecting lines 10a, 10b with a heat transfer medium, the heating of which, when the machine is used, serves as a heat machine for generating energy.
  • the curvature of the partition 6 into the interior of the pressure-tight housing 1 not only results in an increased compressive strength due to the geometric shape, which enables a reduction in the wall thickness of the partition 6 belonging to the pressure-tight housing 1, but also an increase in the heat-transferring area between the gas burner 5 and the hot working volume V h .
  • the small wall thickness of the partition 6 improves the heat transfer from the gas burner 5 to the working medium V h in the hot working volume.
  • the heat insulation formed in the exemplary embodiment by the insulating rings 7a and 7b and the membrane-like extension 6b between the partition wall 6 and the housing 1 simultaneously reduces heat dissipation from the partition wall 6 into the housing 1 and thus to the environment, which results in a further improvement in efficiency.
  • the shape of the piston crown 8a of the hot piston 8 is adapted to the shape of the curved partition 6.
  • the shape of the piston crown 8a of the hot piston 8 is adapted to the shape of the curved partition 6.
  • FIG. 1 shows an alternative or additional possibility for improving the heat transfer from the inner wall of the partition 6 to the working medium located in the hot working volume V h in the form of a guide plate 11 arranged in the edge region of the partition 6.
  • This guide plate 11 forms in the edge region of the Partition 6 flow channels with a small flow cross-section, so that the working medium leaving the hot working volume V h is passed at high flow velocity over the edge region of the partition 6 before the working medium enters the regenerator R h .
  • This measure is also associated with an improvement in efficiency.
  • baffle 11 is also enlarged representation of a partition 6 according to the second 2 according to the embodiment.
  • This alternative Embodiment also shows on the outside of the arched partition 6 arranged baffles 12 through which the flue gases leaving the combustion chamber 5d are forced to high flow velocity over the majority of the outside Surface of the partition 6 to flow, so that a good transfer of heat from the heat-emitting flue gas to the heat-absorbing partition 6 sets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)
EP94926850A 1993-08-28 1994-08-19 Wärme- und kältemaschine Expired - Lifetime EP0665941B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4328992 1993-08-28
DE4328992A DE4328992A1 (de) 1993-08-28 1993-08-28 Wärme- und Kältemaschine
PCT/EP1994/002754 WO1995006848A1 (de) 1993-08-28 1994-08-19 Wärme- und kältemaschine

Publications (2)

Publication Number Publication Date
EP0665941A1 EP0665941A1 (de) 1995-08-09
EP0665941B1 true EP0665941B1 (de) 1999-03-10

Family

ID=6496258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94926850A Expired - Lifetime EP0665941B1 (de) 1993-08-28 1994-08-19 Wärme- und kältemaschine

Country Status (8)

Country Link
US (1) US5715683A (ja)
EP (1) EP0665941B1 (ja)
JP (1) JP3353072B2 (ja)
KR (1) KR100337751B1 (ja)
BR (1) BR9405560A (ja)
DE (2) DE4328992A1 (ja)
ES (1) ES2133574T3 (ja)
WO (1) WO1995006848A1 (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6093504A (en) * 1996-12-03 2000-07-25 Bliesner; Wayne Thomas Electro-chemical-thermal rechargeable energy storage cell (ECT cell)
GB2357121B (en) * 1997-05-23 2001-09-12 Sustainable Engine Systems Ltd Stirling cycle machine
US6526750B2 (en) 1997-11-15 2003-03-04 Adi Thermal Power Corp. Regenerator for a heat engine
US6263671B1 (en) 1997-11-15 2001-07-24 Wayne T Bliesner High efficiency dual shell stirling engine
US6041598A (en) * 1997-11-15 2000-03-28 Bliesner; Wayne Thomas High efficiency dual shell stirling engine
CA2292684A1 (en) 1999-12-17 2001-06-17 Wayne Ernest Conrad Self-contained light and generator
US6286310B1 (en) 1999-12-17 2001-09-11 Fantom Technologies Inc. Heat engine
US6279318B1 (en) 1999-12-17 2001-08-28 Fantom Technologies Inc. Heat exchanger for a heat engine
US6332319B1 (en) 1999-12-17 2001-12-25 Fantom Technologies Inc. Exterior cooling for a heat engine
US6336326B1 (en) 1999-12-17 2002-01-08 Fantom Technologies Inc. Apparatus for cooling a heat engine
US6311490B1 (en) 1999-12-17 2001-11-06 Fantom Technologies Inc. Apparatus for heat transfer within a heat engine
US6345666B1 (en) * 1999-12-17 2002-02-12 Fantom Technologies, Inc. Sublouvred fins and a heat engine and a heat exchanger having same
US6293101B1 (en) 2000-02-11 2001-09-25 Fantom Technologies Inc. Heat exchanger in the burner cup of a heat engine
WO2003006812A1 (en) * 2001-07-13 2003-01-23 Wayne Thomas Bliesner Dual shell stirling engine with gas backup
TW200514914A (en) * 2003-09-19 2005-05-01 Chrysalis Tech Inc Threaded sealing flange for use in an external combustion engine and method of sealing a pressure vessel
EP2836772B1 (en) 2012-04-11 2021-05-05 Thermolift Inc. Heat pump with electomechanically-actuated displacers
CN103016204A (zh) * 2012-12-12 2013-04-03 优华劳斯汽车系统（上海）有限公司 一种热交换器及加热和冷却装置
CN103047045B (zh) * 2012-12-18 2014-09-10 成都宇能通能源开发有限公司 一种蓄热式斯特林发动机
CN103967647A (zh) * 2013-01-31 2014-08-06 优华劳斯汽车系统（上海）有限公司 一种制热制冷设备
WO2019060890A1 (en) * 2017-09-25 2019-03-28 Thermolift, Inc. LINEAR ACTUATORS LOCATED AT THE CENTER TO DRIVE TRAVEL ELEMENTS IN A THERMODYNAMIC APPARATUS

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DE4206957A1 (de) * 1992-03-05 1993-09-16 Viessmann Werke Kg Aussenbeheizte, regenerative, nach dem vuilleumier-kreisprozess arbeitende waerme- und kaeltemaschine
KR950002624B1 (ko) * 1993-04-29 1995-03-23 주식회사금성사 스터링 기기의 열손실 방지장치

Also Published As

Publication number Publication date
WO1995006848A1 (de) 1995-03-09
BR9405560A (pt) 1999-09-08
DE4328992A1 (de) 1995-03-02
ES2133574T3 (es) 1999-09-16
US5715683A (en) 1998-02-10
KR100337751B1 (ko) 2002-11-07
EP0665941A1 (de) 1995-08-09
JP3353072B2 (ja) 2002-12-03
KR950704660A (ko) 1995-11-20
JPH08503063A (ja) 1996-04-02
DE59407923D1 (de) 1999-04-15

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