JPS6282263A - Heat exchanger for stirling engine - Google Patents

Heat exchanger for stirling engine

Info

Publication number
JPS6282263A
JPS6282263A JP60222410A JP22241085A JPS6282263A JP S6282263 A JPS6282263 A JP S6282263A JP 60222410 A JP60222410 A JP 60222410A JP 22241085 A JP22241085 A JP 22241085A JP S6282263 A JPS6282263 A JP S6282263A
Authority
JP
Japan
Prior art keywords
regenerator
heat exchanger
stirling engine
unit
chamber
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.)
Pending
Application number
JP60222410A
Other languages
Japanese (ja)
Inventor
Michio Fujiwara
通雄 藤原
Kazuhiko Kawajiri
和彦 川尻
Yoshio Kazumoto
数本　芳男
Yoichi Hisamori
洋一 久森
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP60222410A priority Critical patent/JPS6282263A/en
Publication of JPS6282263A publication Critical patent/JPS6282263A/en
Pending legal-status Critical Current

Links

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
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • 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
    • F02G2257/00—Regenerators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Landscapes

  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To prevent working gas from leaking out of the outer circumference of a regenerator by making the regenerator of a Stirling engine into an unit in such a way that the outer circumference of the regenerator is joined with a regenerator chamber when the unit is fitted into the chamber. CONSTITUTION:A regenerator which is provided between a heater tube 2 and a cooler 4, is constructed in such a way that the plural number of metal mesh plates 7 in a flat plate form is piled up, and is integrated together with a cylinder made of a sintered metal 8 to from a regenerator unit 10, and then is fitted into a regenerator chamber in a cylinder block. In fitting, a space between the outer circumference of the regenerator unit 10 and the regenerator chamber is brazed with a brazing material 9 for making them hermetic so as to allow no working gas to pass through this portion.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、スターリングエンジンの熱交換器に関し、
特にその再生器の改善に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a heat exchanger for a Stirling engine,
In particular, it concerns improvements to the regenerator.

〔従来の技術〕[Conventional technology]

第３図は、従来のスターリングエンジンのアニエラー型
熱交換器を示す断面図であり、図において、１はシリン
ダ、２はこのシリンダ１にロウ付され、その中を動作流
体が流れるヒータ管であり、これは複数本設けられてい
る。３はステンレス（５ＵＳ）村などの金網からなる再
生器、４は低温側熱交換器であるクーラー、５はクーラ
ー４を固定するためのホルダ、６は送気ピストン（図示
せず）が摺動するライナである。また、第４図は従来の
アニユラ−型再生器を示す平面図である。FIG. 3 is a sectional view showing a conventional Stirling engine Annieler type heat exchanger. In the figure, 1 is a cylinder, and 2 is a heater tube that is brazed to the cylinder 1 and through which the working fluid flows. , this is provided in multiple numbers. 3 is a regenerator made of wire mesh such as stainless steel (5US), 4 is a cooler that is a low temperature side heat exchanger, 5 is a holder for fixing the cooler 4, and 6 is an air supply piston (not shown) on which it slides. This is Raina. Further, FIG. 4 is a plan view showing a conventional annular type regenerator.

次に動作について説明する。上記スターリングエンジン
のアニエラー型熱交換器では、まず多数のヒータ管２に
高温燃焼ガスが接触することによって該ヒータ管２内の
動作流体が加熱され、次に動作流体が再生器３を流れる
間に徐々に熱が奪われ、クーラー４によって、さらに動
作流体が冷却される。以上が動作流体が高温側から低温
側へ流れる場合であるが、低温側から高温側へ流れる場
合はこれと逆の動作になる。Next, the operation will be explained. In the Stirling engine Annieler type heat exchanger, first, the working fluid in the heater tubes 2 is heated by the high temperature combustion gas coming into contact with a large number of heater tubes 2, and then while the working fluid flows through the regenerator 3, the working fluid is heated. Heat is gradually removed, and the working fluid is further cooled by the cooler 4. The above is the case where the working fluid flows from the high temperature side to the low temperature side, but when it flows from the low temperature side to the high temperature side, the operation is the opposite.

次に再生器３について考案すると、第４図に示したよう
に、アニエラー型再生器はＳＵＳ材などの金網をプレス
で打ち抜いたものであり、その切り口が揃わず、寸法誤
差も大きい。従ってこのような再生器３を熱交換器に充
填すると、第５図に示すように、シリンダ１と再生器３
間、ライチロと再生器３間の円周の一部にすきまａが生
ずることになる。このことは、再生器３が十分に作用し
ない、即ち再生層効率の低下を意味し、ひいては熱交換
器全体の効率の低下につながる。Next, considering the regenerator 3, as shown in FIG. 4, the Annieler type regenerator is made by punching out a wire mesh made of SUS material using a press, and the cut edges are not aligned and there are large dimensional errors. Therefore, when the heat exchanger is filled with such a regenerator 3, as shown in FIG.
During this period, a gap a will be created in a part of the circumference between the lithograph and the regenerator 3. This means that the regenerator 3 does not function sufficiently, that is, the efficiency of the regeneration layer decreases, which in turn leads to a decrease in the efficiency of the heat exchanger as a whole.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来のアニユラ−型熱交換器は以上のように構成されて
いるので、再生器の横もれを防止し、効率の低下を防止
するためには再生器メツシュの寸法誤差を厳しくするこ
とが必要である。しかるにメツシュをドーナツ状に高精
度に打ち抜くことは困難であり、また組立時にも、シワ
にならないように充填していく必要があり、そのため再
生器の組立に非常に手間がかかる。さらに、シリンダラ
イナ再生器メソシュュ、シリンダのそれぞれの線膨張係
数が異なるため、仮に再生器メツシュを精度良く形成し
たとしても加熱時に再生器間にすきまが生じ、やはり効
率が低下してしまうなどの問題があった。Since the conventional annular heat exchanger is configured as described above, it is necessary to tighten the dimensional tolerance of the regenerator mesh in order to prevent side leakage of the regenerator and prevent a decrease in efficiency. It is. However, it is difficult to punch out the mesh into a donut shape with high precision, and it is also necessary to fill the mesh so that it does not wrinkle during assembly, making it extremely time-consuming to assemble the regenerator. Furthermore, since the linear expansion coefficients of the cylinder liner regenerator mesh and the cylinder are different, even if the regenerator mesh is formed with high precision, gaps will occur between the regenerators during heating, which will still reduce efficiency. was there.

この発明は、上記のような問題点を解消するためになさ
れたもので、再生器の横もれが完全になくなるとともに
、その組立が容易となり、加熱時にも再生器間にスキマ
が発生せず、再生層効率を大幅に向上させることのでき
るスターリングエンジンの熱交換器を得ることを目的と
する。This invention was made to solve the above-mentioned problems, and it completely eliminates side leakage of the regenerator, makes assembly easier, and eliminates gaps between the regenerators even when heated. The object of the present invention is to obtain a heat exchanger for a Stirling engine that can significantly improve the regeneration layer efficiency.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係るスターリングエンジンの熱交換器は、再
生画周縁を再生器室内壁にロウ付等により接合するよう
にしたものであり、しかもその際、再生器メツシュを複
数枚重ね、その周縁を焼結金属等で被覆して再生器ユニ
ットを構成し、該再生゛　　器ユニットを再生器室壁に
ロウ付して、再生器の横もれすきまをなくしたものであ
る。In the heat exchanger for a Stirling engine according to the present invention, the periphery of the recycled image is joined to the inner wall of the regenerator by brazing or the like, and at that time, a plurality of regenerator meshes are stacked and the periphery is burned. The regenerator unit is constructed by covering the regenerator with a compacted metal, and the regenerator unit is brazed to the wall of the regenerator chamber, thereby eliminating the lateral leakage gap of the regenerator.

〔作用〕[Effect]

この発明においては、再生器がシリンダライナとシリン
ダ等で構成される再生器室にロウ付されることにより、
再生器の横もれが完全になくなり、また再生器が再生器
室であるシリンダライナ及びシリンダと一体になること
により、線膨張係数の相違による伸びを再生器メッシェ
部が吸収することとなり、加熱時にも再生器の周りにす
きまが生しることもなく、さらに再生器の組み立ても非
常に容易になる。In this invention, the regenerator is brazed to the regenerator chamber composed of the cylinder liner, cylinder, etc.
Since side leakage of the regenerator is completely eliminated, and the regenerator is integrated with the cylinder liner and cylinder, which is the regenerator chamber, the mesh part of the regenerator absorbs the elongation due to the difference in linear expansion coefficient. There are no gaps around the regenerator, and the regenerator is also very easy to assemble.

〔実施例〕〔Example〕

以下、この発明の一実施例を図について説明する。第１
図は本発明の一実施例によるスターリングエンジンの熱
交換器の断面構成図を示し、図において１〜６は第３図
に示した従来装置と同様の部品であり、１はシリンダ、
２はヒータ管、４は低温側熱交換器であるクーラ、５は
クーラ４を固定するためのホルダ、６は送気ピストン（
図示せず）が摺動するライナである。また、７はＳＵＳ
のドーナツ状金網からなる再生器メソシュ、８はこの再
生器メツシュアを複数枚重ねたものの内。An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure shows a cross-sectional configuration diagram of a heat exchanger for a Stirling engine according to an embodiment of the present invention. In the figure, 1 to 6 are parts similar to the conventional device shown in FIG. 3, and 1 is a cylinder;
2 is a heater tube, 4 is a cooler which is a low temperature side heat exchanger, 5 is a holder for fixing the cooler 4, and 6 is an air supply piston (
) is the sliding liner. Also, 7 is SUS
8 is a regenerator mesh consisting of a donut-shaped wire mesh.

外径を被覆して再生器をユニット化するための耐熱性材
料としての焼結金属である。つまり、再生器ユニット１
０は上記複数の再生器メツシュアの周りに金属の粉末を
まき、焼結させ、その後シリンダ１とライナ６のはめ合
いにおいてロウ付に必要なギャップが生じるように内外
径を切削等によって仕上げてなるものである。９はこの
再生器ユニット１０を、シリンダ１とライナ６にすきま
なく接合するために用いられたロウ材である。This is a sintered metal used as a heat-resistant material to cover the outer diameter and unitize the regenerator. In other words, regenerator unit 1
0 is made by sprinkling metal powder around the plurality of regenerator meshures and sintering them, and then finishing the inner and outer diameters by cutting etc. to create a gap necessary for brazing when fitting the cylinder 1 and liner 6. It is something. 9 is a brazing material used to join the regenerator unit 10 to the cylinder 1 and liner 6 without any gaps.

次に作用効果について説明する。第１図において、高温
燃焼ガスによって加熱されたヒータ管２内の動作流体は
再生器ユニット１０に流れこむ。Next, the effects will be explained. In FIG. 1, the working fluid in the heater tube 2 heated by the high temperature combustion gas flows into the regenerator unit 10. In FIG.

そのときシリンダ１と再生器ユニット１０間、ライナ６
と再生器ユニット１０間がロウ材で完全にシールされて
いるので、従来のように再生器効率が低下することはな
く、従って熱交換器の効率向上を図ることができる。ま
た、ロウ材されているため加熱時にもすきまが生じるこ
ともなく、線膨張係数の違いによる伸びは再生器メツシ
ュアによって吸収され、このためロウ付部に割れが発生
することもない。At that time, between the cylinder 1 and the regenerator unit 10, the liner 6
Since the space between the regenerator unit 10 and the regenerator unit 10 is completely sealed with the brazing material, the regenerator efficiency does not decrease as in the conventional case, and therefore the efficiency of the heat exchanger can be improved. In addition, since it is made of brazing material, no gaps are created during heating, and elongation due to differences in linear expansion coefficients is absorbed by the regenerator mesh, so that cracks do not occur in the brazed portion.

なお、上記実施例では焼結金属の種類を規定していない
が、これはその線膨張係数がシリンダ。Although the above embodiment does not specify the type of sintered metal, its linear expansion coefficient is similar to that of a cylinder.

ライナの線膨張係数に近い材料が好ましい。また、上記
実施例では金属の粉末を焼結させたが、金属の代わりに
セラミックスの粉末を再生器メツシュの内、外径にまき
、焼結させ、その後内、外径を切削によって仕上げるよ
うにしてもよい。A material with a coefficient of linear expansion close to that of the liner is preferred. Further, in the above embodiment, metal powder was sintered, but instead of metal, ceramic powder was sprinkled on the inner and outer diameters of the regenerator mesh, sintered, and then the inner and outer diameters were finished by cutting. It's okay.

また、再生器メツシュの材質及び線径と目の荒さは規定
するものではなく、再生器メツシュの枚数も規定するも
のではない。さらに、焼結金属の内、外径の仕上げは切
削加工に限定されるものではない。Further, the material, wire diameter, and roughness of the regenerator mesh are not specified, nor is the number of regenerator meshes. Furthermore, the finishing of the inner and outer diameters of the sintered metal is not limited to cutting.

また、上記実施例におけるロウ材の種類は限定されるも
のではなく、再生器ユニットとシリンダ及びライナとを
接合する方法は溶接など他の接合方法でもよい。Furthermore, the type of brazing material used in the above embodiments is not limited, and the regenerator unit, cylinder, and liner may be joined by other joining methods such as welding.

さらに、上記実施例ではアニユラ−型再生器ユニットの
場合について説明したが、第２図のようにキャニスタ型
再生器ユニットとしてもよい。この第２図の例において
は、各再生器メツシュアは円板状に形成され、その外周
が上記実施例と同様に焼結金属８で被覆されている。そ
してこのようにして形成された再生器ユニット１０は所
定の寸法に仕上げられ、再生器ケース１１に充填されて
該ユニット１０の外周と再生器ケース１１の内壁とはロ
ウ材により接合されている。このようなキャニスタ型の
ものにおいても上記実施例と同様の効果が得られるのは
言うまでもない。Further, in the above embodiments, an annular type regenerator unit has been described, but a canister type regenerator unit may be used as shown in FIG. In the example shown in FIG. 2, each regenerator meshure is formed into a disk shape, and its outer periphery is covered with sintered metal 8 as in the above embodiment. The regenerator unit 10 thus formed is finished to a predetermined size, filled in the regenerator case 11, and the outer periphery of the unit 10 and the inner wall of the regenerator case 11 are joined by brazing material. It goes without saying that the same effects as in the above embodiment can be obtained also in such a canister type.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば、再生器をユニ７）化
するとともに、該再生画周縁を再生器室内壁に接合した
ので、動作ガスが再生器の外周部から漏れるのを防止で
き、再生器効率を大幅に向上できる。また加熱時にも再
生器と再生器室との間にすきまが発生することもなく、
しがち組立を簡単にｊテなうことができる効果がある。As described above, according to the present invention, since the regenerator is made into a unit 7) and the peripheral edge of the regenerated image is joined to the inner wall of the regenerator, it is possible to prevent the working gas from leaking from the outer periphery of the regenerator. Regenerator efficiency can be greatly improved. Also, there is no gap between the regenerator and the regenerator chamber during heating.
This has the effect of making the assembly process easier.

【図面の簡単な説明】 第１図は本発明の一実施例によるスターリングエンジン
の熱交換器の要部断面構成図、第２図は本発明の他の実
施例であるキャニスタ−型再生器を使用した熱交換器の
要部の断面構成図、第３図は従来のスターリングエンジ
ンのアニユラ−型熱交換器を示す断面図、第４図は従来
の再生器の平面図、第５図は従来の再生器の問題点を説
明するための図である。 １・・・シリンダ、６・・・ライナ、７・・・再生器メ
ンシュ、８・・・焼結金属、９・・・ロウ材、１０・・
・再生器ユニット、１１・・・再生器ケース。 なお図中同一符号は同−又は相当部分を示す。[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a sectional view of the main parts of a Stirling engine heat exchanger according to an embodiment of the present invention, and Fig. 2 is a canister-type regenerator according to another embodiment of the present invention. Figure 3 is a cross-sectional view of the main parts of the heat exchanger used. Figure 3 is a cross-sectional view of a conventional Stirling engine annular heat exchanger. Figure 4 is a plan view of a conventional regenerator. Figure 5 is a conventional regenerator. FIG. 2 is a diagram for explaining problems with the regenerator. DESCRIPTION OF SYMBOLS 1... Cylinder, 6... Liner, 7... Regenerator mensch, 8... Sintered metal, 9... Brazing material, 10...
- Regenerator unit, 11... regenerator case. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (5)

【特許請求の範囲】[Claims] （１）スターリングエンジンにおける動作流体の熱交換
を行なう熱交換器において、 再生器の周縁を、再生器室内壁との間にすきまが生じな
いよう該再生器室内壁に接合してなることを特徴とする
スターリングエンジンの熱交換器。(1) A heat exchanger for exchanging heat of a working fluid in a Stirling engine, characterized in that the periphery of the regenerator is joined to the inner wall of the regenerator so that no gap is created between the regenerator and the inner wall of the regenerator. Stirling engine heat exchanger. （２）上記再生器周縁と再生器室内壁との接合はロウ付
けにより行なわれることを特徴とする特許請求の範囲第
１項記載のスターリングエンジンの熱交換器。(2) A heat exchanger for a Stirling engine according to claim 1, wherein the regenerator periphery and the regenerator interior wall are joined by brazing. （３）上記再生器周縁と再生器室内壁との接合は溶接に
より行なわれるものであることを特徴とする特許請求の
範囲第１項記載のスターリングエンジンの熱交換器。(3) The heat exchanger for a Stirling engine according to claim 1, wherein the regenerator periphery and the regenerator interior wall are joined by welding. （４）上記再生器は、ドーナツ状に形成された再生器メ
ッシュを複数枚重ね、その周縁を耐熱性材料で被覆し、
かつその内外径が切削仕上げされてなるものであること
を特徴とする特許請求の範囲第１項ないし第３項のいず
れかに記載のスターリングエンジンの熱交換器。(4) The regenerator has a plurality of donut-shaped regenerator meshes stacked on top of each other, the periphery of which is covered with a heat-resistant material,
A heat exchanger for a Stirling engine according to any one of claims 1 to 3, characterized in that its inner and outer diameters are machined and finished. （５）上記再生器は、円板状に形成された再生器メッシ
ュを複数枚重ね、その周縁を耐熱性材料で被覆し、かつ
その外径が切削仕上げされてなるものであることを特徴
とする特許請求の範囲第１項ないし第３項のいずれかに
記載のスターリングエンジンの熱交換器。(5) The regenerator is characterized in that a plurality of disc-shaped regenerator meshes are stacked one on top of the other, the periphery of the regenerator mesh is covered with a heat-resistant material, and the outer diameter of the regenerator mesh is machined. A heat exchanger for a Stirling engine according to any one of claims 1 to 3.
JP60222410A 1985-10-04 1985-10-04 Heat exchanger for stirling engine Pending JPS6282263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60222410A JPS6282263A (en) 1985-10-04 1985-10-04 Heat exchanger for stirling engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60222410A JPS6282263A (en) 1985-10-04 1985-10-04 Heat exchanger for stirling engine

Publications (1)

Publication Number Publication Date
JPS6282263A true JPS6282263A (en) 1987-04-15

Family

ID=16781942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60222410A Pending JPS6282263A (en) 1985-10-04 1985-10-04 Heat exchanger for stirling engine

Country Status (1)

Country Link
JP (1) JPS6282263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015132246A (en) * 2014-01-15 2015-07-23 本田技研工業株式会社 Stirling engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015132246A (en) * 2014-01-15 2015-07-23 本田技研工業株式会社 Stirling engine

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