EP0890022B1 - Stirlingmotor - Google Patents

Stirlingmotor Download PDF

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Publication number
EP0890022B1
EP0890022B1 EP97914283A EP97914283A EP0890022B1 EP 0890022 B1 EP0890022 B1 EP 0890022B1 EP 97914283 A EP97914283 A EP 97914283A EP 97914283 A EP97914283 A EP 97914283A EP 0890022 B1 EP0890022 B1 EP 0890022B1
Authority
EP
European Patent Office
Prior art keywords
stirling engine
engine according
ceramic
tubes
radial ribs
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
EP97914283A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0890022A1 (de
Inventor
Tim Lohrmann
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.)
Sipra Patententwicklungs und Beteiligungs GmbH
Original Assignee
Sipra Patententwicklungs und Beteiligungs GmbH
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 Sipra Patententwicklungs und Beteiligungs GmbH filed Critical Sipra Patententwicklungs und Beteiligungs GmbH
Publication of EP0890022A1 publication Critical patent/EP0890022A1/de
Application granted granted Critical
Publication of EP0890022B1 publication Critical patent/EP0890022B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F02G1/055—Heaters or coolers
    • 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
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • F02G2243/02—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder
    • 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
    • F02G2255/00—Heater tubes
    • F02G2255/20—Heater fins

Definitions

  • the invention is directed to a Stirling engine with a heated cylinder head with a variety of approximately U-shaped curved heater tube and with a cooler for the working gas.
  • Stirling engines are known in a variety of designs, here is an example of DE-40 16 238-C2 as a combination of such an engine with a boiler system.
  • the basic principle of such a Stirling engine is that a constant gas volume (today mostly helium used) within the Stirling engine, by two pistons is pushed back and forth. On the one hand it will Helium through the flame of a gas burner in the heater tube heated and on the other hand by a cooler cooled down. In between is a regenerator, the the gas on its way from the hot to the cold side withdrawn and fed back in the event of backflows.
  • a gear connects the two pistons so that power e.g. about Generators can be removed.
  • the pistons are there alternately moved in parallel or against each other, whereby the Gas is compressed by one piston and after the supply of heat is relaxed again by the other.
  • the heat sink with an external, spiral, cooling medium flowed through groove are provided.
  • spiral Grooved heat sinks are comparatively complex in the manufacture, with the fact that the Coolant continues to heat up as it goes through the spiral groove, so that such heat sinks are not optimally designed can be.
  • the object of the invention is to optimize the energy balance with a Stirling engine, especially the creation a solution that allows the heat transfer to the heater tubes and improves the performance of the cooler becomes.
  • a heater points to the one discussed here Design two coaxial rows of tubes that are circular arranged concentrically and U-shaped via pipe elbows Heater tubes are grouped together, with the tubes on one end with the expansion space and at the other end with are connected to the regenerator.
  • the rows of tubes arranged in a ring are on the inside
  • the outer rows of tubes are due to the geometric Given automatically spread apart next to each other, so that the exhaust gas flow slows down in the spaces and the heat transfer deteriorates.
  • the outer tubes have been used as finned tubes to design such that, for example, heat transfer fins to be soldered, which is necessarily significant Costs and therefore not economical in themselves is justifiable.
  • the elements of the ceramic deposit are expedient approximately T-shaped ceramic profile elements, the T-web between adjacent tubes of faces inwards from outside and the T-head in some areas Tubes covered on the outside.
  • Flow control elements on cooling tubes known per se are, as shown for example in JP 61-226 547-A are.
  • the invention provides in an embodiment that the Inner surface especially in the transition area from the T-leg to the T-head to form flow or flow gaps is provided with spacers. With such spacers can be small cast into the ceramic Trade bridges, possibly also selectively applied ceramic nocks or ceramic pox or the like.
  • the head curvature area the heater tube with a ceramic ring lid is provided, whereby to optimize the cross flow through the free spaces of the outer tubes of the ceramic ring cover with a round head with flow webs like this is provided that no distance between the inner surface of the Ring cover and outer surface of the head curvature areas.
  • the invention provides for optimizing the cooling capacity of the cooler before that the cooler flows as cooling water Light metal body with radial ribs inside a cup-shaped Housing is formed, the distance of the Radial ribs to each other is larger than the gap between Inner pot wall and outer radial rib boundary wall.
  • This Cooling block thus enables particularly good cooling, that the full flow of the gap between the radial ribs is guaranteed.
  • the invention provides that at least the scope two grooves bridging all radial ribs to form the Coolant inflow or coolant outflow provided are.
  • the cooling water can flow into the cooler through one groove be distributed to all gaps between the cooling fins and the cooling water is drawn off on the opposite groove be, so that again cooling water portion the cooler practical flows over half a circular arc. Long ways, such as in known spirally arranged cooling fins thus safely avoided.
  • the heat sink can be displaced inwards Through bores or axial ribs for what is to be cooled Working gas may be provided.
  • the invention provides that the heat sink at least on its bottom surface corresponding to the bottom of the pot is provided with ring seals.
  • the invention provides in an embodiment that the edge area of the radiator cooperating with the collar Housing is provided with a drainage.
  • Stirling engine designated 1 has one of a burner flame heated cylinder head, generally designated 3, on with a variety of U-shaped heater tubes 4, an indicated regenerator 5, one itself subsequent heat sink 6, a displacer 7, a Piston 8 and a gear 9, it here on the latter doesn't get any closer.
  • the cylinder head 3 heated by the flame 2 has how already said above, a large number of heating tubes 4 on that of, in relation to the cylinder head, straight inside Heater partial tubes 4a, a respective elbow 4b and outer partial tubes 4c are formed, wherein lead the partial tubes 4a into the expansion space 7a, while the outer partial tubes 4c the regenerator 5 act upon.
  • the inner Partial tubes 4a geometrically comparatively close together, while the outer tubes 4c comparatively are arranged widely spread.
  • the inner tubes 4a offer good flow conditions for the exhaust gases Flow pattern with an arrow 10 in FIGS. 1 and 2 is indicated.
  • This ceramic deposit 11 consists of individual, cross-sectional approximately T-shaped ceramic profile elements 12 with a T-web 12a arranged from the inside out and one T-head 12b, which is located on the outside of the partial tube 4c Maintains a gap.
  • This gap formation is achieved in that the inner surface the ceramic profile elements 12 in the transition area from T-leg 12a to the head 12b has ribs 13, which place directly on the partial tubes 4c. With that same flow conditions when flushing the partial tubes 4c reached by the exhaust gas, as when washing around the inner partial tubes 4a.
  • a favorable cross flow in the area of the partial tubes 4c, a ceramic ring cover is to be achieved according to the invention 14 put on top of a fixing collar 15 for the head area of the ceramic elements 12.
  • FIG. 5 shows how the foot area of the individual Ceramic elements 12 positioned in the housing wall 17 is, where a fixing collar 18 may be provided who holds the corresponding foot areas.
  • the cooler 6 of the Stirling engine shown in FIGS. 7 and 8 1 essentially consists of a light metal cooling block 20, which is housed in a pot-shaped housing 21 which is not the inflow 22 and in Fig. 8 Cooling water outflow shown in more detail opposite having.
  • the cooling block 20 is designed as a light metal body and has a plurality of radial ribs running around parallel on the outside 23, which form flow channels 24 between them and the one relative to the inner wall of the housing 21 form small gap 25, the significantly smaller is than the width of the respective flow channel 24.
  • Both sides in the area of the cooling water inlet 22 and the opposite cooling water outlet are in the heat sink 20 two axial grooves bridging all radial ribs 23 26 provided through which the cooling water to the individual Flow channels 24 distributed or from which it is not removed becomes.
  • the cooling block 20 is offset further inwards Variety of axial bores 28, which is also a variety of ribs can act on the corresponding one Represent flow channels for the working medium to be cooled.
  • the one with the collar 32 of the heat sink 20 cooperating edge region 33 of the housing 21 as well the one between the two pot base seals 29 Area 34 may be provided with a drainage groove or the like in order to Leakage cooling water to drain, which is only hinted at in Fig. 8 is reproduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP97914283A 1996-03-29 1997-03-21 Stirlingmotor Expired - Lifetime EP0890022B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19612616 1996-03-29
DE19612616A DE19612616C2 (de) 1996-03-29 1996-03-29 Stirlingmotor
PCT/EP1997/001428 WO1997037119A1 (de) 1996-03-29 1997-03-21 Stirlingmotor

Publications (2)

Publication Number Publication Date
EP0890022A1 EP0890022A1 (de) 1999-01-13
EP0890022B1 true EP0890022B1 (de) 2001-06-13

Family

ID=7789903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914283A Expired - Lifetime EP0890022B1 (de) 1996-03-29 1997-03-21 Stirlingmotor

Country Status (11)

Country Link
US (1) US6161381A (ja)
EP (1) EP0890022B1 (ja)
JP (1) JP2000506583A (ja)
CN (1) CN1100203C (ja)
AT (1) ATE202185T1 (ja)
AU (1) AU736605B2 (ja)
CA (1) CA2250224C (ja)
DE (3) DE19612616C2 (ja)
DK (1) DK0890022T3 (ja)
NO (1) NO984511L (ja)
WO (1) WO1997037119A1 (ja)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282895B1 (en) * 1997-07-14 2001-09-04 Stm Power, Inc. Heat engine heater head assembly
US6694731B2 (en) * 1997-07-15 2004-02-24 Deka Products Limited Partnership Stirling engine thermal system improvements
FR2780505B1 (fr) * 1998-06-26 2000-09-15 Montupet Sa Banc d'essai de fatigue thermique de culasses de moteurs a combustion, et procedes associes
EP1126153A3 (de) 2000-02-16 2002-10-23 Josef Ing. Frauscher Stirlingmaschine
US7469760B2 (en) * 2000-03-02 2008-12-30 Deka Products Limited Partnership Hybrid electric vehicles using a stirling engine
US6543215B2 (en) 2001-06-15 2003-04-08 New Power Concepts Llc Thermal improvements for an external combustion engine
US7111460B2 (en) * 2000-03-02 2006-09-26 New Power Concepts Llc Metering fuel pump
KR100374653B1 (ko) * 2000-08-16 2003-03-04 주식회사 뉴로스 개방형 스터링 사이클 방식으로 작동하는 초소형 운반체용외연기관
DE60215319T2 (de) 2001-02-20 2007-05-24 Kasmer, Thomas E. Hydristor-wärmepumpe
US6701708B2 (en) 2001-05-03 2004-03-09 Pasadena Power Moveable regenerator for stirling engines
US7308787B2 (en) * 2001-06-15 2007-12-18 New Power Concepts Llc Thermal improvements for an external combustion engine
US6455781B1 (en) * 2001-08-23 2002-09-24 Chartered Semiconductor Manufacturing Ltd. Thermocouple ceramic bead insulator
DE10243178B4 (de) * 2002-09-18 2004-08-05 Daimlerchrysler Ag Vorrichtung zur Versorgung eines Klimaaggregates sowie von elektrischen Verbrauchern in einem Fahrzeug mit Energie
CN101658740B (zh) 2002-11-13 2014-06-04 迪卡产品合伙有限公司 压力蒸汽循环液体蒸馏器
US8511105B2 (en) 2002-11-13 2013-08-20 Deka Products Limited Partnership Water vending apparatus
US8069676B2 (en) 2002-11-13 2011-12-06 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
US7325399B2 (en) * 2003-02-10 2008-02-05 New Power Concepts Llc Coolant penetrating cold-end pressure vessel
US7484944B2 (en) * 2003-08-11 2009-02-03 Kasmer Thomas E Rotary vane pump seal
KR20050087380A (ko) * 2004-02-26 2005-08-31 사종엽 로터리 방식 스털링 엔진
US7934926B2 (en) 2004-05-06 2011-05-03 Deka Products Limited Partnership Gaseous fuel burner
US7607299B2 (en) * 2005-08-09 2009-10-27 Pratt & Whitney Rocketdyne, Inc. Thermal cycle engine with augmented thermal energy input area
GB0522309D0 (en) * 2005-11-01 2005-12-07 Microgen Energy Ltd An annular burner assembly
US11826681B2 (en) 2006-06-30 2023-11-28 Deka Products Limited Partneship Water vapor distillation apparatus, method and system
AT504666B1 (de) * 2007-05-03 2008-07-15 Frauscher Josef Wärmetauscher
US11884555B2 (en) 2007-06-07 2024-01-30 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
KR101967001B1 (ko) 2007-06-07 2019-04-08 데카 프로덕츠 리미티드 파트너쉽 증류 장치 및 압축기
CN101463775B (zh) * 2007-12-19 2011-06-15 孔令斌 斯特林可逆热机
MX354085B (es) 2008-08-15 2018-02-09 Deka Products Lp Aparato expendedor de agua.
CN102072044A (zh) * 2011-01-24 2011-05-25 新疆阳光动力能源科技有限公司 水冷装置及具有该水冷装置的外燃机
WO2014018896A1 (en) 2012-07-27 2014-01-30 Deka Products Limited Partnership Control of conductivity in product water outlet for evaporation apparatus
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
AT515025B1 (de) * 2013-10-31 2015-12-15 Frauscher Holding Ges M B H Wärmetauscher für eine thermodynamische Maschine
RU182024U1 (ru) * 2017-12-26 2018-07-31 Федор Андреевич Шустров Охладитель двигателя Стирлинга

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JPS5593939A (en) * 1979-01-09 1980-07-16 Tokyo Gas Co Ltd Heat exchanger in external combustion engine
JPS6097351U (ja) * 1983-12-09 1985-07-03 アイシン精機株式会社 スタ−リング機関用スワラ−
JPS6146447A (ja) * 1984-08-11 1986-03-06 Toshiba Corp スタ−リングエンジン
JPS61226547A (ja) * 1985-03-29 1986-10-08 Aisin Seiki Co Ltd スタ−リング機関用燃焼器
JPS62226547A (ja) * 1986-03-28 1987-10-05 Nippon Kokan Kk <Nkk> Ｘ線螢光増倍管
DE4016238A1 (de) * 1990-05-19 1991-11-21 Stirling Motors Gmbh Vorrichtung zur erzeugung elektrischer und heizenergie
DE4232555A1 (de) * 1992-09-29 1994-04-07 Hemscheidt Maschf Hermann Heißgasmotor mit äußerer Verbrennung und geschlossenem Kreisprozeß
JPH06146447A (ja) * 1992-10-31 1994-05-27 Nippon Kentetsu Co Ltd カ−テンウォ−ルのユニット目地パッキンクロス部分のシ−ル方法および装置
DE4401247C2 (de) * 1994-01-18 1998-10-08 Bosch Gmbh Robert Wärmeübertrager
US5664945A (en) * 1996-04-05 1997-09-09 Mechanical Technology Incorporated Pressurized wick burner
US5755100A (en) * 1997-03-24 1998-05-26 Stirling Marine Power Limited Hermetically sealed stirling engine generator

Also Published As

Publication number Publication date
DK0890022T3 (da) 2001-09-03
DE19612616A1 (de) 1997-10-02
US6161381A (en) 2000-12-19
CA2250224C (en) 2004-02-03
JP2000506583A (ja) 2000-05-30
CN1100203C (zh) 2003-01-29
NO984511D0 (no) 1998-09-28
AU736605B2 (en) 2001-08-02
NO984511L (no) 1998-11-30
DE29620914U1 (de) 1997-07-03
AU2158997A (en) 1997-10-22
CN1217765A (zh) 1999-05-26
WO1997037119A1 (de) 1997-10-09
DE19612616C2 (de) 2002-03-07
CA2250224A1 (en) 1997-10-09
DE59703803D1 (de) 2001-07-19
EP0890022A1 (de) 1999-01-13
ATE202185T1 (de) 2001-06-15

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