JPH0654099B2 - Heat exchanger for displacer type Stirling engine - Google Patents

Heat exchanger for displacer type Stirling engine

Info

Publication number
JPH0654099B2
JPH0654099B2 JP60079582A JP7958285A JPH0654099B2 JP H0654099 B2 JPH0654099 B2 JP H0654099B2 JP 60079582 A JP60079582 A JP 60079582A JP 7958285 A JP7958285 A JP 7958285A JP H0654099 B2 JPH0654099 B2 JP H0654099B2
Authority
JP
Japan
Prior art keywords
dome
regenerator
concentric annular
displacer
shaped cylinder
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 - Fee Related
Application number
JP60079582A
Other languages
Japanese (ja)
Other versions
JPS61237871A (en
Inventor
通雄 藤原
芳男 数本
有 野間口
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 JP60079582A priority Critical patent/JPH0654099B2/en
Priority to US06/851,443 priority patent/US4662176A/en
Priority to EP86302802A priority patent/EP0202034B1/en
Priority to DE8686302802T priority patent/DE3672685D1/en
Publication of JPS61237871A publication Critical patent/JPS61237871A/en
Publication of JPH0654099B2 publication Critical patent/JPH0654099B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • F02G2253/00—Seals
    • F02G2253/03—Stem seals
    • 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
    • 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
    • F02G2256/00—Coolers
    • F02G2256/04—Cooler tubes
    • 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
    • F02G2270/00—Constructional features
    • F02G2270/85—Crankshafts

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、ディスプレーサ形スターリング機関の熱交
換器に関し、特に、従来に比して熱効率及び耐久性の向
上を図ることができるディスプレーサ形スターリング機
関の熱交換器に関するものである。Description: TECHNICAL FIELD The present invention relates to a heat exchanger of a displacer type Stirling engine, and more particularly to a displacer type Stirling engine capable of improving thermal efficiency and durability as compared with conventional heat exchangers. Of the heat exchanger of.

〔従来の技術〕[Conventional technology]

第２図は特開昭52−25952 号公報に記載された従来のデ
ィスプレーサ形スターリング機関の熱交換器の構成を示
す断面図であり、図において、１は高温シリンダ、１ａ
は膨張室、２は高温シリンダ１の周囲に同心円環状に構
成された再生器ハウジング、３は該再生器ハウジング２
に対し、オーリングシール３ｂと固定ボルト１０２とに
より密閉固定されている低温シリンダ、３ａは圧縮室、
４は上記高温シリンダ１のヘッド部から上記再生器ハウ
ジング２のヘッド部へ放射状に配管された複数のヒータ
管、５は金網等で構成された同心円環状の再生器充填
物、６は該再生器充填物５の下方に配置された同心円環
状クーラ、６ａは該同心円環状クーラ６にロウ付等で組
み立てられた冷却管、６ｂ，６ｃは上記同心円環状クー
ラ６を外気と密閉するためのオーリングシール、７，８
はクーラ６を冷却するための冷却水入口管，冷却水出口
管，９は中空密閉状のディスプレーサ、１０はディスプ
レーサ９に装着されたガスシールリング、１０１は上記
動力ピストン１１の中心軸部に設けられ、ディスプレー
サロッド１３をシールするロッドシール、１４は上記動
力ピストン１１に固定された動力ピストンロッドであ
る。ここで、低温動力シリンダ３の下部は上記ディスプ
レーサ９と上記動力ピストン１１とを所定の位相差で往
復動させるクランク機構及び各々のコンロッドを備えた
クランクケースとなっている。FIG. 2 is a cross-sectional view showing the structure of the heat exchanger of the conventional displacer type Stirling engine described in JP-A-52-25952, in which 1 is a high temperature cylinder and 1a.
Is an expansion chamber, 2 is a regenerator housing formed in a concentric annular shape around the high temperature cylinder 1, and 3 is the regenerator housing 2
On the other hand, the low temperature cylinder 3a hermetically fixed by the O-ring seal 3b and the fixing bolt 102 is a compression chamber,
Reference numeral 4 denotes a plurality of heater tubes radially piped from the head portion of the high temperature cylinder 1 to the head portion of the regenerator housing 2, 5 is a concentric annular regenerator filling made of wire mesh, and 6 is the regenerator. A concentric annular cooler arranged below the filling 5, a cooling pipe 6a assembled to the concentric annular cooler 6 by brazing, and 6b and 6c an O-ring seal for sealing the concentric annular cooler 6 with the outside air. , 7, 8
Is a cooling water inlet pipe for cooling the cooler 6, a cooling water outlet pipe, 9 is a hollow hermetic displacer, 10 is a gas seal ring mounted on the displacer 9, and 101 is provided on the central shaft portion of the power piston 11. A rod seal for sealing the displacer rod 13 and a power piston rod 14 fixed to the power piston 11. Here, the lower part of the low temperature power cylinder 3 is a crankcase provided with a crank mechanism for reciprocating the displacer 9 and the power piston 11 with a predetermined phase difference and each connecting rod.

次に動作について説明する。Next, the operation will be described.

ディスプレーサ形スターリング機関では、ヒータ管４，
クーラ６を各々連続的に加熱冷却することにより、作業
流体は膨張，圧縮させ、該作業流体を熱交換器内に往復
流動させる。即ち、作業流体は、ヒータ管４から再生器
充填物５を介してクーラ６へ、又はその逆方向に流動す
る。そして、ヒータ管４への加熱エネルギが各ピストン
の往復動を介してクランク軸の回転エネルギに変換され
る。In the displacer type Stirling engine, the heater tube 4,
By continuously heating and cooling the cooler 6, the working fluid is expanded and compressed, and the working fluid is reciprocated in the heat exchanger. That is, the working fluid flows from the heater tube 4 through the regenerator filling 5 to the cooler 6 or vice versa. Then, the heating energy to the heater pipe 4 is converted into the rotational energy of the crankshaft through the reciprocating motion of each piston.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

しかるに、従来のディスプレーサ形スターリング機関の
熱交換器においては以下のような問題点があった。However, the heat exchanger of the conventional displacer type Stirling engine has the following problems.

即ち、高温シリンダ１と再生器ハウジング２は、高温シ
リンダ１の膨張室１ａにかかる１０〜６０気圧の内圧に
耐えなければならない必要性から、厚い肉厚に形成され
ていた。しかるに、これは、高温シリンダ１から再生器
ハウジング２を介してクーラ６への伝わる熱伝導損失を
大きくし、エンジンの熱効率を悪くするという問題点を
発生させていた。また、高温シリンダ１と再生器ハウジ
ング２との接合部では大きな断面積変化があり、このた
め、該接合部には溶接応力の外に大きな熱応力集中が発
生し、該接合部が破損しやすいという問題点があった。That is, the high temperature cylinder 1 and the regenerator housing 2 are formed to have a large wall thickness because it is necessary to withstand the internal pressure of 10 to 60 atm applied to the expansion chamber 1a of the high temperature cylinder 1. However, this increases the heat conduction loss transmitted from the high temperature cylinder 1 to the cooler 6 via the regenerator housing 2 and causes a problem of deteriorating the thermal efficiency of the engine. Further, there is a large change in the cross-sectional area at the joint between the high temperature cylinder 1 and the regenerator housing 2, so that a large thermal stress concentration occurs outside the welding stress at the joint, and the joint is easily damaged. There was a problem.

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、その内部の膨張室からクーラへ作業流体が
往復流動するシリンダとクーラ間における熱伝導損失が
低減し、しかも、シリンダと該シリンダの一部に接合し
て再生器が充填される空間を形成するハウジング部材と
の接合部における熱応力集中が低減した、機関の熱効率
及び耐久性に優れたディスプレーサ形スターリング機関
の熱交換器を提供することを目的とする。The present invention has been made to solve the above problems, and reduces heat conduction loss between a cooler and a cylinder in which a working fluid reciprocates from an expansion chamber inside the cooler to a cooler. A heat exchanger for a displacer-type Stirling engine, which is excellent in thermal efficiency and durability of an engine, in which concentration of thermal stress is reduced in a joint portion with a housing member which is joined to a part of the cylinder to form a space filled with a regenerator. The purpose is to provide.

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

この発明にかかるディスプレーサ形スターリング機関の
熱交換器は、その球形部の内側空間が膨張室となるドー
ム状シリンダと、その最上部が上記ドーム状シリンダに
おける上記球形部の内周面に嵌合し、上記ドーム状シリ
ンダの円筒部との間に再生器が充填される空間を形成す
る円筒状のインナライナと、上記空間内に充填された同
心円環状再生器と、上記ドーム状シリンダ内にて、上記
同心円環状再生器及び上記インナライナの下方に設けら
れた同心円環状クーラと、上記同心円環状クーラの内壁
面に摺動して、その球形部の最上部が上記膨張室内で往
復動するよう移動するディスプレーサと、上記ドーム状
シリンダの球形部に設けられ、上記膨張室と上記再生器
が充填される空間とを繋ぐヒータ管とを備えたものであ
る。A heat exchanger for a displacer-type Stirling engine according to the present invention comprises a dome-shaped cylinder having an inner space of the spherical portion serving as an expansion chamber, and an uppermost portion thereof fitted to an inner peripheral surface of the spherical portion of the dome-shaped cylinder. A cylindrical inner liner forming a space filled with a regenerator between the cylindrical portion of the dome-shaped cylinder, a concentric annular regenerator filled in the space, and the inside of the dome-shaped cylinder, A concentric annular regenerator and a concentric annular cooler provided below the inner liner, and a displacer that slides on the inner wall surface of the concentric annular cooler and moves so that the uppermost part of the spherical portion reciprocates in the expansion chamber. And a heater tube provided in the spherical portion of the dome-shaped cylinder and connecting the expansion chamber and a space filled with the regenerator.

〔作用〕[Action]

この発明においては、上記構成としたことにより、円筒
状のインナライナの上方に位置する，ドーム状シリンダ
の球形部の内側空間が膨張室になり、円筒状のインナラ
イナの内側壁面には常にディスプレーサの外周面が一定
間隔を隔て対向することになる。従って、円筒状のイン
ナライナに作用する圧力は、作業流体が再生器及びクー
ラを流れる際に発生する圧力損失（約０．２気圧程度の
圧力）が作用するのみとなり、その肉厚を薄くできるの
で、ドーム状シリンダの球形部からヒータ管，及び再生
器を介してクーラへ伝わる熱伝導損失が小さくなり、機
関の熱効率が向上する。In the present invention, due to the above configuration, the inner space of the spherical portion of the dome-shaped cylinder located above the cylindrical inner liner becomes an expansion chamber, and the inner wall surface of the cylindrical inner liner always has the outer periphery of the displacer. The surfaces face each other with a certain distance. Therefore, the pressure acting on the cylindrical inner liner is only a pressure loss (a pressure of about 0.2 atm) generated when the working fluid flows through the regenerator and the cooler, and the wall thickness can be reduced. The heat conduction loss transmitted from the spherical portion of the dome-shaped cylinder to the cooler via the heater tube and the regenerator is reduced, and the thermal efficiency of the engine is improved.

また、円筒状のインナライナは、その最上部がドーム状
シリンダの球形部の内周面に嵌合することにより、ドー
ム状シリンダに接合されており、また、ヒータ管が接続
されるドーム状シリンダの球形部は、その断面積変化が
少ない曲線状であるので、従来装置にして、シリンダに
かかる熱応力集中が著しく低減することができ、機関の
耐久性を向上することができる。In addition, the cylindrical inner liner is joined to the dome-shaped cylinder by fitting the uppermost part thereof to the inner peripheral surface of the spherical portion of the dome-shaped cylinder, and also of the dome-shaped cylinder to which the heater tube is connected. Since the spherical portion has a curved shape with a small change in its cross-sectional area, the concentration of thermal stress applied to the cylinder can be remarkably reduced and the durability of the engine can be improved in the conventional device.

〔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
図はこの発明の一実施例のディスプレーサ形スターリン
グ機関の熱交換器の構成を示す断面図であり、図におい
て、第２図と同一符号は同一または相当する部分は示し
ている。An embodiment of the present invention will be described below with reference to the drawings. First
1 is a sectional view showing the structure of a heat exchanger of a displacer type Stirling engine according to an embodiment of the present invention. In the drawing, the same reference numerals as those in FIG. 2 designate the same or corresponding portions.

１５はその球形部の内側空間が膨張室１ａとなるドーム
状シリンダ、１６は該ドーム状シリンダ１５の円筒部の
上部との間で再生器充填物（同心円環状再生器）５が充
填される空間を形成する円筒状のインナライナであり、
その上部は該ドーム状シリンダ１５の球形部の内周面に
嵌合されている。また、２３は同心円環状クーラ６とイ
ンナライナ１６の嵌合部をシールするオーリングシー
ル、また、１７は同心円環状クーラ６の下方に設けら
れ、その内壁面が動力ピストン１１の摺動面となる圧縮
シリンダ、１７ａ，１７ｂは圧縮シリンダ１７を外気か
ら密閉するためのオーリングシール、１８，１９はそれ
ぞれ圧縮シリンダ１７を冷却するための冷却水の入口管
と出口管、２０はクランクケースの上部フランジ部で、
このクランクケースはディスプレーサ９及び動力ピスト
ン１１を所定の位相差で駆動するための図示しないクラ
ンク機構を備えている。２１は上記熱交換器を構成する
ドーム状シリンダ１５とクランクケースとの両フランジ
部を結合するボルト、２２は気密のためのオーリングシ
ールである。Reference numeral 15 is a dome-shaped cylinder whose inner space of the spherical portion is the expansion chamber 1a, and 16 is a space filled with a regenerator filling (concentric annular regenerator) 5 between the dome-shaped cylinder 15 and the upper portion of the cylindrical portion. Is a cylindrical inner liner forming
The upper portion is fitted to the inner peripheral surface of the spherical portion of the dome-shaped cylinder 15. Further, 23 is an O-ring seal that seals the fitting portion of the concentric annular cooler 6 and the inner liner 16, and 17 is provided below the concentric annular cooler 6, the inner wall surface of which is a sliding surface of the power piston 11. Cylinders, 17a and 17b are O-ring seals for sealing the compression cylinder 17 from the outside air, 18 and 19 are inlet and outlet pipes of cooling water for cooling the compression cylinder 17, and 20 is an upper flange portion of the crankcase. so,
This crankcase has a crank mechanism (not shown) for driving the displacer 9 and the power piston 11 with a predetermined phase difference. Reference numeral 21 is a bolt that connects both flange portions of the dome-shaped cylinder 15 and the crankcase that form the heat exchanger, and 22 is an O-ring seal for airtightness.

本実施例装置では、上記のように、ドーム状シリンダ１
５の円筒部の上部と、円筒状のインナライナ１６との間
に形成される空間に再生器充填物（同心円環状再生器）
５が充填される。また、同心円環状クーラ６は、再生器
充填物（同心円環状再生器）５とインナライナ１６の下
方に配設され、その上部にインナライナ１６の下部が嵌
合し、その内壁面がディスプレーサ９の摺動面となる。
また、ディスプレーサ９は、ここでは、その上部が球形
状に形成されており、この球形状部の最上面が膨張室１
ａ内を往復動するように、ドーム状シリンダ１５内を移
動する。また、膨張室１ａと上記再生器充填物（同心円
環状再生器）５が充填された空間とを繋ぐ複数のヒータ
管４が、ドーム状シリンダ１５の球形部に設けられてい
る。In the apparatus of this embodiment, as described above, the dome-shaped cylinder 1
In the space formed between the upper part of the cylindrical portion of No. 5 and the cylindrical inner liner 16, a regenerator packing (concentric annular regenerator)
5 is filled. Further, the concentric annular cooler 6 is arranged below the regenerator filling (concentric annular regenerator) 5 and the inner liner 16, the lower part of the inner liner 16 is fitted on the upper part thereof, and the inner wall surface of the displacer 9 slides. It becomes a face.
In addition, the displacer 9 has an upper portion formed in a spherical shape, and the uppermost surface of the spherical portion is the expansion chamber 1 here.
It moves in the dome-shaped cylinder 15 so as to reciprocate in a. A plurality of heater tubes 4 connecting the expansion chamber 1 a and the space filled with the regenerator filling (concentric annular regenerator) 5 are provided in the spherical portion of the dome-shaped cylinder 15.

ここで、本実施例装置の構成を従来装置のそれと比較す
ると、本実施例装置のドーム状シリンダ１５の球形部
が、従来装置の，その内側空間が膨張室１ａとなる，高
温シリンダ１の上部に相当し、本実施例装置のドーム状
シリンダ１５の円筒部の上部が、従来装置の再生器ハウ
ジング２に相当し、本実施例装置の同心円環状クーラ６
の内壁面が、従来装置の，ディスプレーサ摺動面とな
る，高温シリンダ１の下部の内壁面に相当する。Comparing the configuration of the device of the present embodiment with that of the conventional device, the spherical portion of the dome-shaped cylinder 15 of the device of the present embodiment is the upper part of the high temperature cylinder 1 of which the inner space of the device is the expansion chamber 1a. The upper part of the cylindrical portion of the dome-shaped cylinder 15 of the device of the present embodiment corresponds to the regenerator housing 2 of the conventional device, and the concentric annular cooler 6 of the device of the present embodiment is used.
The inner wall surface of 1 corresponds to the inner wall surface of the lower part of the high temperature cylinder 1 which is the displacer sliding surface of the conventional device.

次に、動作，及び作用効果について説明する。Next, the operation and effects will be described.

本実施例装置の動作は従来装置のそれと基本的に同じで
あり、作業流体が、膨張室１ａからヒータ管４，再生器
充填物（同心円環状再生器）５，及びクーラ６を介して
圧縮室３へ、またその逆方向へ往復流動し、ディスプレ
ーサ形スターリング機関として動作する。かかる動作に
おいて、インナライナ１６に作用する圧力は、その内側
空間が膨張室とならないので、ディスプレーサ９の往復
動にともなう作業流体の流動により、再生器充填物（同
心円環状再生器）５及び同心円環状クーラ６で生ずる，
圧力損失（約０．２気圧）程度となる。従って、円筒状
のインナライナ１６の厚みを、従来装置の高温シリンダ
１の側壁の厚みに比して極めて薄くできるので、ドーム
状シリンダ１５からクーラ６への熱伝導損失を低減で
き、機関の熱効率を向上することができる。また、ヒー
タ管４をその断面積変化が少ないドーム状シリンダ１５
の球形部に設け、インナライナ１６を該球形部の内周面
に嵌合しているので、従来装置に比してシリンダにおけ
る熱応力集中が軽減することができ、機関の耐久性が向
上する。The operation of the device of this embodiment is basically the same as that of the conventional device, and the working fluid is compressed from the expansion chamber 1a through the heater tube 4, the regenerator filling (concentric annular regenerator) 5, and the cooler 6. It reciprocates to 3 and vice versa, and operates as a displacer type Stirling engine. In such an operation, the pressure acting on the inner liner 16 does not serve as an expansion chamber in its inner space, so that the flow of the working fluid accompanying the reciprocating movement of the displacer 9 causes the regenerator filling (concentric annular regenerator) 5 and the concentric annular cooler. Occurs in 6,
The pressure loss is about 0.2 atm. Therefore, the thickness of the cylindrical inner liner 16 can be made extremely thin as compared with the thickness of the side wall of the high temperature cylinder 1 of the conventional device, so that the heat conduction loss from the dome-shaped cylinder 15 to the cooler 6 can be reduced and the thermal efficiency of the engine can be improved. Can be improved. In addition, the heater tube 4 has a dome-shaped cylinder 15 whose cross-sectional area changes little.
Since the inner liner 16 is provided on the spherical portion and the inner liner 16 is fitted to the inner peripheral surface of the spherical portion, the thermal stress concentration in the cylinder can be reduced and the durability of the engine is improved as compared with the conventional device.

〔発明の効果〕〔The invention's effect〕

以上のように、この発明にかかるディスプレーサ形スタ
ーリング機関の熱交換器によれば、ドーム状シリンダの
球形部の内側空間を膨張室とし、該ドーム状シリンダの
円筒部の内側に同心円環状再生器と同心円環状クーラを
配設し、該同心円環状再生器とディスプレーサの移動空
間とを円筒状のインナライナで区画し、該同心円環状ク
ーラの内壁面をディスプレーサの摺動面としたので、従
来装置に比して、シリンダからクーラへの熱伝導損失及
びシリンダにおける熱応力集中を小さくでき、機関の熱
効率及び耐久性を著しく向上できる効果がある。As described above, according to the heat exchanger of the displacer-type Stirling engine according to the present invention, the inner space of the spherical portion of the dome-shaped cylinder serves as an expansion chamber, and the concentric annular regenerator is provided inside the cylindrical portion of the dome-shaped cylinder. Since a concentric annular cooler is provided and the moving space of the concentric annular regenerator and the displacer is divided by a cylindrical inner liner, and the inner wall surface of the concentric annular cooler is used as the sliding surface of the displacer, compared with the conventional device. As a result, the heat conduction loss from the cylinder to the cooler and the thermal stress concentration in the cylinder can be reduced, and the thermal efficiency and durability of the engine can be significantly improved.

【図面の簡単な説明】[Brief description of drawings]

第１図はこの発明の一実施例によるディスプレーサ形ス
ターリング機関の断面図、第２図は従来のディスプレー
サ形スターリング機関の断面図である。 １……高温シリンダ、２……再生器ハウジング １５……ドーム状シリンダ、１６……インナライナ １７……圧縮シリンダ なお図中同一符号は同一又は相当部分を示す。FIG. 1 is a sectional view of a displacer type Stirling engine according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional displacer type Stirling engine. DESCRIPTION OF SYMBOLS 1 ... High temperature cylinder, 2 ... Regenerator housing 15 ... Dome cylinder, 16 ... Inner liner 17 ... Compression cylinder In addition, the same code | symbol shows the same or corresponding part in the figure.

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特公 昭43−20928（ＪＰ，Ｂ１) 特公 昭42−19534（ＪＰ，Ｂ１) 特公 昭35−14306（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication No. 43-20928 (JP, B1) Japanese Patent Publication No. 42-19534 (JP, B1) Japanese Publication No. 35-14306 (JP, B1)

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】ディスプレーサ形スターリング機関の熱交
換器において、 その球形部の内側空間が膨張室となるドーム状シリンダ
と、 その最上部が上記ドーム状シリンダにおける上記球形部
の内周面に嵌合し、上記ドーム状シリンダの円筒部との
間に再生器が充填される空間を形成する円筒状のインナ
ライナと、 上記空間内に充填された同心円環状再生部器と、 上記ドーム状シリンダ内にて、上記同心円環状再生器及
び上記インナライナの下方に設けられた同心円環状クー
ラと、 上記同心円環状クーラの内壁面に摺動して、その球形部
の最上部が上記膨張室内で往復動するよう移動するディ
スプレーサと、 上記ドーム状シリンダの球形部に設けられ、上記膨張室
と上記再生器が充填される空間とを繋ぐヒータ管とを備
えたことを特徴とするディスプレーサ形スターリング機
関の熱交換器。1. In a heat exchanger of a displacer type Stirling engine, a dome-shaped cylinder whose inner space of the spherical part is an expansion chamber, and an uppermost part of which is fitted to an inner peripheral surface of the spherical part of the dome-shaped cylinder. A cylindrical inner liner forming a space filled with the regenerator between the cylindrical portion of the dome-shaped cylinder, a concentric annular regenerator filled in the space, and the inside of the dome-shaped cylinder. , The concentric annular cooler provided below the concentric annular regenerator and the inner liner, and the inner wall surface of the concentric annular cooler, and the uppermost part of the spherical portion reciprocates in the expansion chamber. A displacer and a heater tube provided in the spherical portion of the dome-shaped cylinder and connecting the expansion chamber and a space filled with the regenerator. Heat exchanger of Isupuresa type Stirling engine.
JP60079582A 1985-04-15 1985-04-15 Heat exchanger for displacer type Stirling engine Expired - Fee Related JPH0654099B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP60079582A JPH0654099B2 (en) 1985-04-15 1985-04-15 Heat exchanger for displacer type Stirling engine
US06/851,443 US4662176A (en) 1985-04-15 1986-04-14 Heat exchanger for a Stirling engine
EP86302802A EP0202034B1 (en) 1985-04-15 1986-04-15 A stirling engine
DE8686302802T DE3672685D1 (en) 1985-04-15 1986-04-15 Stirling-motor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60079582A JPH0654099B2 (en) 1985-04-15 1985-04-15 Heat exchanger for displacer type Stirling engine

Publications (2)

Publication Number Publication Date
JPS61237871A JPS61237871A (en) 1986-10-23
JPH0654099B2 true JPH0654099B2 (en) 1994-07-20

Family

ID=13693976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60079582A Expired - Fee Related JPH0654099B2 (en) 1985-04-15 1985-04-15 Heat exchanger for displacer type Stirling engine

Country Status (1)

Country Link
JP (1) JPH0654099B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01244152A (en) * 1988-03-26 1989-09-28 Mitsubishi Electric Corp High temperature side heat exchanger for stirling cycle engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202350A (en) * 1982-05-20 1983-11-25 Sanyo Electric Co Ltd Stirling engine

Also Published As

Publication number Publication date
JPS61237871A (en) 1986-10-23

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