JPH0213144B2 - - Google Patents
Info
- Publication number
- JPH0213144B2 JPH0213144B2 JP20297583A JP20297583A JPH0213144B2 JP H0213144 B2 JPH0213144 B2 JP H0213144B2 JP 20297583 A JP20297583 A JP 20297583A JP 20297583 A JP20297583 A JP 20297583A JP H0213144 B2 JPH0213144 B2 JP H0213144B2
- Authority
- JP
- Japan
- Prior art keywords
- working fluid
- piston
- closed container
- space
- regenerator
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 47
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 description 16
- 238000007906 compression Methods 0.000 description 16
- 239000000314 lubricant Substances 0.000 description 10
- 239000007791 liquid phase Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
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
-
- 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
- F02G1/0435—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 the engine being of the free piston type
-
- 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
- F02G2243/24—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder with free displacers
-
- 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
- F02G2290/00—Engines characterised by the use of a particular power transfer medium, e.g. Helium
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)
Description
【発明の詳細な説明】
産業上の利用分野
本発明はスターリング機関に関するものであ
り、特に潤滑方法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to Stirling engines, and in particular to improvements in lubrication methods.
従来例の構成とその問題点
第１図は、従来のスターリング機関の概略の構
成を示す図である。１は密閉容器でその中に作動
流体が封入されている。２は作動流体を加熱する
為の加熱器、３は作動流体を冷却する為の冷却
器、４は再生器である。５は密閉容器１の内壁と
狭いすきまを保つて密閉容器１内を上下方向に運
動可能なように設けられているデイスプレーサ、
６は密閉容器の内壁に固定されている支持部品、
７はデイスプレーサ５の一部分であるデイスプレ
ーサロツド８が摺動しながら上下方向に運動可能
なように構成されている支持部品６の軸受部、９
は密閉容器１の内壁と摺動自在に上下方向に運動
可能なよう設けられているピストン、１０はその
一端が密閉容器１の内壁に固定され、他端がピス
トン９に固定され、ピストン９の運動によつてピ
ストン９から仕事をされる負荷である。Configuration of a conventional example and its problems FIG. 1 is a diagram showing a schematic configuration of a conventional Stirling engine. 1 is a closed container in which a working fluid is sealed. 2 is a heater for heating the working fluid, 3 is a cooler for cooling the working fluid, and 4 is a regenerator. A displacer 5 is provided so as to be able to move vertically within the closed container 1 while maintaining a narrow gap with the inner wall of the closed container 1;
6 is a support component fixed to the inner wall of the sealed container;
Reference numeral 7 denotes a bearing portion of the support component 6, which is configured to allow the displacer rod 8, which is a part of the displacer 5, to move vertically while sliding;
A piston 10 is provided so as to be able to slide vertically on the inner wall of the closed container 1. One end of the piston 10 is fixed to the inner wall of the closed container 1, and the other end is fixed to the piston 9. This is the load that is performed by the piston 9 due to its movement.
またピストン９の密閉容器１の内壁と摺動する
面、密閉容器１の内壁のピストン９と摺動する
面、これら２つの面には固体潤滑剤が塗布されて
いる。 Further, a solid lubricant is applied to the surface of the piston 9 that slides on the inner wall of the closed container 1, and the surface of the inner wall of the closed container 1 that slides on the piston 9.
以下に従来例の作用について説明する。 The operation of the conventional example will be explained below.
デイスプレーサ５が下方に下がると、圧縮空間
１１の体積は減少し、膨張空間１２の体積は増加
する。その為、圧縮空間１１の圧力は膨張空間１
２の圧力より高くなり、この差圧によつて、圧縮
空間１１および冷却器３の中にある低温の作動流
体は再生器４、加熱器２を通つて膨張空間１２の
方へ流れていく、このとき作動流体は再生器４お
よび加熱器２によつて加熱される、そして再生器
４は逆に冷却される。このようにして低温の作動
流体が加熱される為、圧縮空間１１、通路１３、
冷却器３、再生器４、加熱器２、通路１４、膨張
空間１２を合わせた作動空間の圧力が高くなり、
ピストン９を引下げる。このときピストン９は負
荷１０に対して仕事をする。一方デイスプレーサ
５が下がり続けるとガススプリング１５の圧力が
次第に増加し、ついには、デイスプレーサ５は下
がるのが止まり今度は逆に上昇を始める。デイス
プレーサ５が上昇すると、今度は、圧縮空間１１
の体積は増加し、膨張空間１２の体積は減少す
る。その為、膨張空間１２の圧力は圧縮空間１１
の圧力より高くなり、この差圧によつて、膨張空
間１２および加熱器２の中にある高温の作動流体
は再生器４、冷却器３を通つて圧縮空間１１の方
へ流れていく、このとき作動流体は再生器４およ
び冷却器３によつて冷却される、そして再生器４
は逆に加熱される。このようにして高温の作動流
体が冷却される為、作動空間の圧力が低くなり、
ピストン９を引上げる。このときピストン９は負
荷１０に対して仕事をする。 When the displacer 5 moves downward, the volume of the compression space 11 decreases and the volume of the expansion space 12 increases. Therefore, the pressure in the compression space 11 is equal to the pressure in the expansion space 1.
2, and this differential pressure causes the cold working fluid in the compression space 11 and the cooler 3 to flow through the regenerator 4 and the heater 2 towards the expansion space 12. The working fluid is then heated by the regenerator 4 and the heater 2, and the regenerator 4 is cooled in turn. Since the low-temperature working fluid is heated in this way, the compression space 11, the passage 13,
The pressure in the working space including the cooler 3, regenerator 4, heater 2, passage 14, and expansion space 12 increases,
Pull down the piston 9. At this time, the piston 9 performs work against the load 10. On the other hand, as the displacer 5 continues to fall, the pressure of the gas spring 15 gradually increases, and finally the displacer 5 stops falling and begins to rise again. When the displacer 5 rises, the compression space 11
The volume of the expansion space 12 increases and the volume of the expansion space 12 decreases. Therefore, the pressure in the expansion space 12 is equal to the pressure in the compression space 11.
Due to this pressure difference, the hot working fluid in the expansion space 12 and the heater 2 flows through the regenerator 4 and the cooler 3 towards the compression space 11. When the working fluid is cooled by the regenerator 4 and the cooler 3, and the regenerator 4
On the contrary, it is heated. In this way, the high temperature working fluid is cooled, so the pressure in the working space is lowered,
Pull up the piston 9. At this time, the piston 9 performs work against the load 10.
一方デイスプレーサ５が上がり続けるとガスス
プリング１５の圧力が次第に減少し、ついには、
デイスプレーサ５は上がるのが止まり、今度は逆
に下降を始める。 On the other hand, as the displacer 5 continues to rise, the pressure in the gas spring 15 gradually decreases, and finally,
The displacer 5 stops rising and now begins to descend in the opposite direction.
以上述べたような一まわりの過程に於て、作動
流体は加熱器２によつて得た熱の一部を負荷１０
に対する仕事に使い、また一部を冷却器３にすて
るのである。 In the process of one rotation as described above, the working fluid transfers a part of the heat obtained by the heater 2 to the load 10.
It is used for work on the air, and a part is thrown away into the cooler 3.
一方、構成の所で述べたようにピストン９の密
閉容器１の内壁と摺動する面、密閉容器１の内壁
のピストン９と摺動する面、これら２つの面には
固体潤滑剤が塗布されているためピストン９と密
閉容器１の内面とは滑らかに摺動する。 On the other hand, as described in the configuration, a solid lubricant is applied to the surface of the piston 9 that slides on the inner wall of the sealed container 1, and the surface of the inner wall of the sealed container 1 that slides on the piston 9. Therefore, the piston 9 and the inner surface of the closed container 1 slide smoothly.
ところで、従来のスターリング機関に於ては、
摺動面に固体潤滑剤を用いていた為、長時間運転
していると次第に摩耗し、その為に、金属同志が
接触するに到り、それによつて、摩擦損失が大き
くなりそれにより機関の効率が低下したり焼付き
が生じて、摺動が不可能になつたりした。さらに
固体潤滑剤の摩耗粉が、再生器４のマトリクスの
目をつまらせ、その為に再生器４での圧力降下を
増加させこれまた機関の効率を低下させたり、加
熱器２に入つて分解し、ふしよく性の物質が発生
して、密閉容器１等をふしよくさせたりした。こ
のようにして、機関の効率が低下したり、信頼性
が低下したりするという欠点があつた。 By the way, in the conventional Stirling institution,
Because solid lubricants were used on the sliding surfaces, they gradually wore out during long-term operation, and as a result, metals came into contact with each other, resulting in increased friction loss and damage to the engine. Efficiency decreased or seizure occurred, making sliding impossible. Furthermore, wear particles of the solid lubricant can clog the matrix of the regenerator 4, thereby increasing the pressure drop in the regenerator 4, which also reduces engine efficiency, or enters the heater 2 and decomposes. However, a sticky substance was generated and caused the sealed container 1 to become sticky. In this way, the disadvantage was that the efficiency and reliability of the engine were reduced.
発明の目的
本発明は、以上述べたような従来のスターリン
グ機関の欠点を解消し、もつて効率の高い、信頼
性の高いスターリング機関を提供しようとするも
のである。OBJECTS OF THE INVENTION The present invention aims to eliminate the drawbacks of the conventional Stirling engine as described above, and to provide a highly efficient and reliable Stirling engine.
発明の構成
本発明は密閉容器内に作動流体Ａ，Ｂを封入
し、密閉容器内を摺動自在に移動するピストンの
摺動部において、一方の流体を結露させることに
よつて、摺動部材を滑かに移動させるものであ
る。Composition of the Invention The present invention seals working fluids A and B in a closed container, and condenses one of the fluids in the sliding portion of a piston that freely moves within the closed container, so that the sliding member It moves smoothly.
実施例の説明 以下、本発明の構成について説明する。Description of examples The configuration of the present invention will be explained below.
１６は密閉容器でその中に沸点の高い作動流体
Ａと作動流体Ａより沸点の低い作動流体Ｂが封入
されている。１８は作動流体を加熱する為の加熱
器、１７は作動流体を冷却する為の冷却器、１９
は再生器である。２０は圧縮空間、２１，２２は
流路、２３は膨張空間、２４はガススプリング、
２５は密閉容器１６の内壁と狭いすきまを保つて
密閉容器１６内を上下方向に運動可能なように設
けられているデイスプレーサ、２６は密閉容器１
６の内壁に固定されている支持部品、２７はデイ
スプレーサ２５の一部分であるデイスプレーサロ
ツド２８が摺動しながら上下方向に運動可能なよ
うに構成されている支持部品２６の軸受部、２９
は密閉容器１６の内壁と摺動自在に上下方向に運
動可能なように設けられているピストン、３０は
その一端が密閉容器１６の内壁に固定され、他端
がピストン２９に固定され、ピストン２９の運動
によつてピストン２９から仕事をされる圧縮機、
ポンプ等の負荷である。３１はピストン２９と密
閉容器１６の内壁との摺動面の近くの密閉容器１
６の外壁にロウ付等熱抵抗を低くするような方法
で取付けられた管、３２は密閉容器１６の内壁を
加工して形成された溝部、３３は管３１をおおう
ように設けられた断熱材である、管３１内には冷
却材が流せるようになつている。 Reference numeral 16 denotes a closed container in which a working fluid A having a high boiling point and a working fluid B having a lower boiling point than the working fluid A are sealed. 18 is a heater for heating the working fluid; 17 is a cooler for cooling the working fluid; 19
is a regenerator. 20 is a compression space, 21 and 22 are flow paths, 23 is an expansion space, 24 is a gas spring,
Reference numeral 25 denotes a displacer which is provided so as to be able to move vertically within the airtight container 16 while maintaining a narrow gap with the inner wall of the airtight container 16; 26, the airtight container 1;
6, a bearing part 27 of the support part 26, which is configured so that the displacer rod 28, which is a part of the displacer 25, can move vertically while sliding; 29
A piston 30 is provided so as to be able to slide vertically on the inner wall of the closed container 16, and 30 has one end fixed to the inner wall of the closed container 16 and the other end fixed to the piston 29. a compressor in which work is done from a piston 29 by the movement of
This is the load on pumps, etc. 31 is the closed container 1 near the sliding surface between the piston 29 and the inner wall of the closed container 16
A pipe is attached to the outer wall of 6 by a method that lowers thermal resistance, such as by brazing, 32 is a groove formed by processing the inner wall of the closed container 16, and 33 is a heat insulating material provided to cover the pipe 31. A coolant can flow through the pipe 31.
次に動作説明を行う。発明の構成の所で述べた
ように、密閉容器１６内にはチツソN2、ヘリウ
ムHe等の沸点の高い作動流体Ａと水H2O等の沸
点の低い作動流体Ｂが封入されている。密閉容器
１６内の作動流体Ａおよび作動流体Ｂが存在する
空間に於て特に述べる所以外では作動流体Ａおよ
び作動流体Ｂは気相で存在する。またバウンス空
間３４底部には作動流体Ｂが大半を占める液相が
存在する。デイスプレーサ２５が下方に下がる
と、圧縮空間２０の体積は減少し、逆に膨張空間
２３の体積は増加する。その為圧縮空間２０の圧
力は膨張空間２３の圧力より高くなり、この差圧
によつて、圧縮空間２０および冷却器１７の中に
ある低温の作動流体Ａと作動流体Ｂの混合した作
動流体（以下混合作動流体と称する）は再生器１
９、加熱器１８を通つて膨張空間２３の方へ流れ
ていく、このとき混合作動流体は再生器１９およ
び加熱器１８によつて加熱される、そして再生器
１９は逆に冷却される。このようにして低温の混
合作動流体が加熱される為、圧縮空間２０、通路
２１、冷却器１７、再生器１９、加熱器１８、通
賂２２、膨張空間２３を合わせた作動空間の圧力
が高くなり、ピストン２９を引下げる。このとき
ピストン２９は負荷３０に対して仕事をする。一
方デイスプレーサ２５が下がり続けるとガススプ
リング２４の圧力が次第に増加し、ついには、デ
イスプレーサ２５は下がるのが止まり今度は逆に
上昇を始める。 Next, the operation will be explained. As described in the section of the structure of the invention, the closed container 16 is sealed with a working fluid A having a high boiling point such as Chitsuso N 2 or helium He, and a working fluid B having a low boiling point such as water H 2 O. In the space in the closed container 16 where the working fluid A and the working fluid B exist, the working fluid A and the working fluid B exist in a gas phase except where specifically stated. Further, at the bottom of the bounce space 34, there is a liquid phase in which the working fluid B occupies the majority. When the displacer 25 moves downward, the volume of the compression space 20 decreases, and conversely, the volume of the expansion space 23 increases. Therefore, the pressure in the compression space 20 becomes higher than the pressure in the expansion space 23, and due to this pressure difference, the working fluid (a mixture of low-temperature working fluid A and working fluid B in the compression space 20 and the cooler 17) ( (hereinafter referred to as mixed working fluid) is the regenerator 1
9. Flowing through the heater 18 towards the expansion space 23, the mixed working fluid is heated by the regenerator 19 and the heater 18, and the regenerator 19 is cooled in turn. Since the low-temperature mixed working fluid is heated in this way, the pressure in the working space including the compression space 20, passage 21, cooler 17, regenerator 19, heater 18, feeder 22, and expansion space 23 is high. Then, the piston 29 is pulled down. At this time, the piston 29 performs work on the load 30. On the other hand, as the displacer 25 continues to fall, the pressure of the gas spring 24 gradually increases, and finally the displacer 25 stops falling and begins to rise.
デイスプレーサ２５が上昇すると、今度は、圧
縮空間２０の体積は増加し、膨張空間２３の体積
は減少する。その為、膨張空間２３の圧力は圧縮
空間２０の圧力より高くなり、この差圧によつ
て、膨張空間２３および加熱器１８の中にある高
温の混合作動流体は再生器１９、冷却器１７を通
つて圧縮空間２０の方へ流れていく、このとき混
合作動流体は再生器１９および冷却器１７によつ
て冷却される、そして再生器１９は逆に加熱され
る。このようにして高温の混合作動流体が冷却さ
れる為、作動空間の圧力が低くなり、ピストン２
９を引上げる。このときピストン２９は負荷３０
に対して仕事をする。 When the displacer 25 rises, the volume of the compression space 20 increases and the volume of the expansion space 23 decreases. Therefore, the pressure in the expansion space 23 becomes higher than the pressure in the compression space 20, and due to this pressure difference, the high temperature mixed working fluid in the expansion space 23 and the heater 18 flows through the regenerator 19 and the cooler 17. flowing towards the compression space 20, the mixed working fluid is cooled by the regenerator 19 and the cooler 17, and the regenerator 19 is heated in turn. Since the high temperature mixed working fluid is cooled in this way, the pressure in the working space is lowered and the piston 2
Raise 9. At this time, the piston 29 has a load of 30
work against.
一方デイスプレーサ２５が上がり続けると、ガ
ススプリング２４の圧力が次第に減少し、ついに
は、デイスプレーサ２４は上がるのが止まり、今
度は逆に下降を始める。 On the other hand, as the displacer 25 continues to rise, the pressure of the gas spring 24 gradually decreases, and finally the displacer 24 stops rising and begins to descend.
以上述べたような一まわりの過程に於て、混合
作動流体は加熱器１８によつて得た熱の一部を負
荷３０に対する仕事に変え、また一部を冷却器１
７にすてるのである。一方、管３１には水等の冷
却剤が流れており、この為この管１１が取付けら
れた密閉容器１６の壁は冷却される。その為、溝
部３２付近の混合作動流体は冷却され、沸点の低
い方の作動流体Ｂが溝部３２で凝縮して液相が生
成される。そして、この液相は、上下運動するピ
ストン２９と密閉容器１６とのすきまに入る。こ
のすきまに入つた液相は、ピストン２９と密閉容
器１６の内壁との間で潤滑剤として働き、摩擦係
数を減少させる効果を発揮する。またこの液相は
バウンススペース３４に入つた場合底部にたまつ
ている液相に入る場合もあり、また周囲の熱で加
熱されて再び気相にもどる場合もある。いずれに
しても、使用するいかなる条件に於ても、作動流
体Ｂの凝縮、蒸発等の過程に於て、ふしよく性の
ある物質が発生して、密閉容器１６をふしよくす
る等の不都合が一切ないように、作動流体Ａ、作
動流体Ｂが選定されている。 In the process described above, the mixed working fluid converts part of the heat obtained by the heater 18 into work for the load 30, and part of it is transferred to the cooler 1.
I will throw it away at 7. On the other hand, a coolant such as water is flowing through the tube 31, so that the wall of the closed container 16 to which the tube 11 is attached is cooled. Therefore, the mixed working fluid near the groove 32 is cooled, and the working fluid B having a lower boiling point is condensed in the groove 32 to generate a liquid phase. Then, this liquid phase enters the gap between the piston 29 that moves up and down and the closed container 16. The liquid phase that has entered this gap acts as a lubricant between the piston 29 and the inner wall of the closed container 16, and exhibits the effect of reducing the coefficient of friction. Further, when this liquid phase enters the bounce space 34, it may enter the liquid phase accumulated at the bottom, or it may be heated by the surrounding heat and return to the gas phase again. In any case, under any conditions of use, during the process of condensation, evaporation, etc. of the working fluid B, viscous substances may be generated, causing inconveniences such as making the closed container 16 sturdier. Working fluid A and working fluid B are selected so that there is no such problem.
この為、従来のスターリング機関のように、固
体潤滑剤を使用していないので、運転時間の経過
と共に固体潤滑剤が摩耗したりすることもなくそ
れによつて引起される種々の不都合な現象の発生
が防止できる。 For this reason, unlike conventional Stirling engines, solid lubricants are not used, so the solid lubricants do not wear out over time, and various inconvenient phenomena caused by this do not occur. can be prevented.
その理由は、潤滑剤である液相の作動流体Ｂは
密閉容器１６の冷却により溝部３２に絶え間なく
安定して供給できるからである。しかも潤滑油の
ように、加熱器１８に入つて分解し、炭素ができ
て、再生器１９のマトリクスをつまらせる等の心
配もない。なお上記実施例においては、加熱器１
８、冷却器１７、再生器１９、流路２１，２２を
設けているが、これに替えて膨張空間２３内の作
動流を密閉容器１６の壁の外から加熱する加熱手
段と、圧縮空間２０内の作動流体を密閉容器１６
の壁の外から冷却する冷却手段と、デイスプレー
サ２５の密閉容器１６の内壁に面する面に取付け
られた再生器マトリクスとを設けることもでき
る。またデイスプレーサ２５はダイアフラムに置
換えることもできる。 This is because the liquid-phase working fluid B, which is a lubricant, can be continuously and stably supplied to the groove portion 32 by cooling the closed container 16. Moreover, unlike lubricating oil, there is no need to worry about it entering the heater 18, decomposing, producing carbon, and clogging the matrix of the regenerator 19. In the above embodiment, the heater 1
8, a cooler 17, a regenerator 19, and flow paths 21 and 22 are provided, but instead of these, a heating means for heating the working flow in the expansion space 23 from outside the wall of the closed container 16, and a compression space 20 are provided. The working fluid in the sealed container 16
It is also possible to provide cooling means for cooling from outside the walls of the displacer 25 and a regenerator matrix mounted on the side of the displacer 25 facing the inner wall of the closed container 16. Further, the displacer 25 can also be replaced with a diaphragm.
発明の効果
本発明においては、従来のスターリング機関の
ように摺動面の潤滑に固体潤滑剤を使用せず、潤
滑剤として作動流体の液相を使用するので、運転
時間が経過しても、効率が下がらず、また信頼性
が高くなるという効果がある。Effects of the Invention In the present invention, unlike conventional Stirling engines, solid lubricants are not used to lubricate sliding surfaces, but the liquid phase of the working fluid is used as the lubricant. This has the effect of not reducing efficiency and increasing reliability.
第１図は従来の一実施例のスターリング機関の
概略構成図、第２図は本発明の一実施例のスター
リング機関の概略構成図である。
１６……密閉容器、１８……加熱器、１７……
冷却器、１９……再生器、２５……デイスプレー
サ、３９……ピストン、３０……負荷、３１……
管、３２……溝部、３３……断熱材。
FIG. 1 is a schematic diagram of a Stirling engine according to an embodiment of the prior art, and FIG. 2 is a schematic diagram of a Stirling engine according to an embodiment of the present invention. 16... Airtight container, 18... Heater, 17...
Cooler, 19... Regenerator, 25... Displacer, 39... Piston, 30... Load, 31...
Pipe, 32...Groove, 33...Insulating material.
Claims (1)
動流体Ａ及び作動流体Ｂと、前記作動流体の加熱
手段と、前記作動流体の冷却手段Ｃと、前記密閉
容器で囲まれる空間を前記加熱手段および前記冷
却手段Ｃに連通する作動空間Ｅと、前記加熱手段
および前記冷却手段Ｃに連通しないバウンス空間
Ｆとに分割すると共に前記密閉容器の内壁に摺動
自在に配設されたピストンと、前記ピストンと前
記密閉容器との間隙に存在する前記作動流体の冷
却手段Ｄとを有するスターリング機関。 ２ 容器とピストンとの摺動面間の隙間を一様で
なく一部大きくした特許請求の範囲第１項記載の
スターリング機関。[Scope of Claims] 1 A sealed container, a working fluid A and a working fluid B sealed in the sealed container, a heating means for the working fluid, a cooling means C for the working fluid, and a device surrounded by the sealed container. The space is divided into an operating space E that communicates with the heating means and the cooling means C, and a bounce space F that does not communicate with the heating means and the cooling means C, and is slidably disposed on the inner wall of the closed container. 1. A Stirling engine, comprising: a piston with a closed container; and means D for cooling the working fluid, which exists in a gap between the piston and the closed container. 2. The Stirling engine according to claim 1, wherein the gap between the sliding surfaces of the container and the piston is not uniform and is partially enlarged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20297583A JPS6093163A (en) | 1983-10-28 | 1983-10-28 | Stirling-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20297583A JPS6093163A (en) | 1983-10-28 | 1983-10-28 | Stirling-engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6093163A JPS6093163A (en) | 1985-05-24 |
| JPH0213144B2 true JPH0213144B2 (en) | 1990-04-03 |
Family
ID=16466252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20297583A Granted JPS6093163A (en) | 1983-10-28 | 1983-10-28 | Stirling-engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6093163A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186045A (en) * | 1986-02-13 | 1987-08-14 | Matsushita Electric Ind Co Ltd | Starling engine |
| CN104653331A (en) * | 2015-01-29 | 2015-05-27 | 中国科学院理化技术研究所 | Free-piston Stirling heat engine |
| CN106499542B (en) * | 2016-12-16 | 2019-04-30 | 源之翼智能装备制造（江苏）有限公司 | The efficient thermomotor of closure door formula |
-
1983
- 1983-10-28 JP JP20297583A patent/JPS6093163A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6093163A (en) | 1985-05-24 |
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