JPS6316159A - Free piston type stirling engine - Google Patents
Free piston type stirling engineInfo
- Publication number
- JPS6316159A JPS6316159A JP15903186A JP15903186A JPS6316159A JP S6316159 A JPS6316159 A JP S6316159A JP 15903186 A JP15903186 A JP 15903186A JP 15903186 A JP15903186 A JP 15903186A JP S6316159 A JPS6316159 A JP S6316159A
- Authority
- JP
- Japan
- Prior art keywords
- displacer
- space
- stirling engine
- gas
- free piston
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 abstract description 4
- 239000007858 starting material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 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
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
- F02G1/0435—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
- 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
- F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
- F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
- F02G2243/38—External regenerators having parallel cylinders, e.g. "Heinrici" 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
- F02G2270/00—Constructional features
- F02G2270/85—Crankshafts
-
- 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
- F02G2280/00—Output delivery
- F02G2280/50—Compressors or pumps
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ディスプレーサ駆動方式のフリーピストン式
スターリング機関のディスプレーサ駆動部の改良に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a displacer drive section of a free piston Stirling engine of a displacer drive type.
従来の技術
一般Ｋ、外燃機関であるスターリング機関ハ、高効率性
、多燃料性、静粛性等の多くの特徴を備えておシ、スタ
ーリング機関を構成上で大別すると、ディスプレーサと
動力ビストンが共にクランク機構等で拘束されていない
フリーピストン式スターリング機関とクランク機構等に
ディスプレーサと動力ビストンを連結したスターリング
機関（（以下、機械式スターリング機関と称す）とがあ
る。The Stirling engine is an external combustion engine with many features such as high efficiency, fuel efficiency, and quietness.The Stirling engine can be roughly divided into two types based on its configuration: displacer and power piston. There are two types of Stirling engines: a free-piston Stirling engine in which both are not restrained by a crank mechanism or the like, and a Stirling engine in which a displacer and a power piston are connected to the crank mechanism (hereinafter referred to as a mechanical Stirling engine).
発明が解決しようとする問題点
機械式スターリング機関では、コンロッドやクランク軸
で出力を取出す為、摺動部に大きな力がかかり機械損失
が多く、またクランク軸等の機構部も大きくなる。一方
、フリーピストン式スターリング機関は、一般に動力ビ
ストンがクランク軸やコンロノドで拘束されていない為
、機械損失が少ないという利点がある。しかし、ディス
プレーサもピストンもフリーの場合、負荷変動に対する
制御が複雑になる。Problems to be Solved by the Invention In a mechanical Stirling engine, output is obtained through connecting rods and a crankshaft, so large forces are applied to sliding parts, resulting in large mechanical losses, and mechanical parts such as the crankshaft also become large. On the other hand, free-piston Stirling engines generally have the advantage of less mechanical loss because the power piston is not restrained by the crankshaft or stove. However, if both the displacer and the piston are free, control over load fluctuations becomes complicated.
問題点を解決する為の手段
本発明は、クランク機構あるいはこれに和尚する機構に
よりディスプレーサを駆動し、ディスプレーサと同軸上
にディスプレーサの直径より小さい直径で形成する空間
を備えた構成としたことを特徴とするフリーピストン式
スターリング機関である。Means for Solving the Problems The present invention is characterized in that the displacer is driven by a crank mechanism or a mechanism adapted thereto, and a space is formed coaxially with the displacer and has a diameter smaller than the diameter of the displacer. It is a free piston Stirling engine.
作用
本発明は、ディスプレーサはクランク機構等で拘束され
ている為、負荷変動による制御も周波数を変える等容易
で、ディスプレーサと同軸上にガス空間を設けることに
より、加熱、冷却することで生じる作動ガスの圧力変動
を利用でき、ディスプレーサを駆動する動力を少なく、
駆動装置も小型化できる。Function In the present invention, since the displacer is restrained by a crank mechanism, it is easy to control it by changing the frequency due to load fluctuations, and by providing a gas space coaxially with the displacer, the working gas generated by heating and cooling can be controlled easily. pressure fluctuations can be used to reduce the power required to drive the displacer.
The drive device can also be downsized.
実施例 以下、本発明の一実施例を図面にもとづいて説明する。Example Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図において、ハウシング１に固定された固定子巻線
２に電力を供給するとロータ３が回転し、ロータ３が固
定されているクランク軸４も回転する。クランク軸４が
回転するとコネクティングロッド５を介してディスプレ
ーサロッド６及びディスプレーサ７は上下に往復動する
。ディスプレーサ７が上下に往復動すると、スターリン
グ機関内部に封入されているヘリウム等の作動ガスが、
加熱器８．再生器９．冷却器１０を通って高温空間１１
及び低温空間１２の間を往復する。In FIG. 1, when power is supplied to a stator winding 2 fixed to a housing 1, a rotor 3 rotates, and a crankshaft 4 to which the rotor 3 is fixed also rotates. When the crankshaft 4 rotates, the displacer rod 6 and the displacer 7 reciprocate up and down via the connecting rod 5. When the displacer 7 reciprocates up and down, the working gas such as helium sealed inside the Stirling engine
Heater 8. Regenerator9. High temperature space 11 through cooler 10
and the low temperature space 12.
例えば、ディスプレーサ７が上方に移動すると、高温空
間１１内にある作動ガスは加熱器８を通シ、再生器９で
ガス自身の持っている熱を蓄熱し、冷却器１０で冷却さ
れて低温空間１２側に移動する。For example, when the displacer 7 moves upward, the working gas in the high temperature space 11 passes through the heater 8, stores the heat of the gas itself in the regenerator 9, is cooled in the cooler 10, and is cooled in the low temperature space. Move to the 12th side.
この時、動力ビストン１３の上方側の空間にある作動ガ
スは低温空間側にある割合が多くなり作動ガスの圧力は
下がシ、動力ビストン１３を引き上げる。逆に、ディス
プレーサ７が下方に移動すると、低温空間１２内にある
作動ガスは冷却器１０を通シ、再生器９に蓄熱された熱
を吸収して加熱器８で加かされ高温空間１１側に移動す
る。この時、動力ビストン１３の上方側の空間の作動ガ
スは高温空間１１側にある割合が多くなシ、作動ガス圧
力は上昇し、動力ビストン１３を下方に押し下げる。こ
れを繰り返すことにより動カビストン１３は負荷１４に
打ち勝って上下に往復動する。At this time, a proportion of the working gas in the space above the power piston 13 is in the low-temperature space, the pressure of the working gas decreases, and the power piston 13 is pulled up. Conversely, when the displacer 7 moves downward, the working gas in the low temperature space 12 passes through the cooler 10, absorbs the heat stored in the regenerator 9, is added by the heater 8, and is transferred to the high temperature space 11 side. Move to. At this time, since a large proportion of the working gas in the space above the power piston 13 is located on the high temperature space 11 side, the working gas pressure increases and pushes the power piston 13 downward. By repeating this, the movable piston 13 overcomes the load 14 and reciprocates up and down.
又、ディスプレーサ７と同軸上にガス空間１６を設けて
おり、ディスプレーサ７と動力ビストン１３がある位相
差で動くことによって生じる作動ガスの圧力変動が、ガ
ス空間１６の直径で形成される断面積に働く為、ディス
プレーサ７は作動ガスにより駆動力を与えられる。よっ
て、ディスプレーサ７を駆動する為の固定子巻線には少
ない動力で済む。なお、本実施例では、ガス空間１６と
してガスバネ空間として動くような小空間の例を図示し
ているが、ディスプレーサ７が動作中でも大略平均圧と
なるような大きい空間でもよいことは無論である。In addition, a gas space 16 is provided coaxially with the displacer 7, and the pressure fluctuation of the working gas caused by the movement of the displacer 7 and the power piston 13 with a certain phase difference is caused by the cross-sectional area formed by the diameter of the gas space 16. In order to work, the displacer 7 is given driving force by the working gas. Therefore, the stator winding for driving the displacer 7 requires less power. In this embodiment, an example of a small space that moves as a gas spring space is illustrated as the gas space 16, but it goes without saying that it may be a large space that maintains approximately the average pressure even when the displacer 7 is in operation.
次に、本発明の他の実施例について説明する。Next, other embodiments of the present invention will be described.
第２図は、他の実施例のスターリング機関の要部縦断面
図である。なお、説明を簡単にする為に、第１図と共通
する素子には第１図と同一番号を付している。この実施
例では、ガス空間１６をバネ作用を持つガス空間として
構成しディスプレーサ７が上下動するほぼ中心位置で、
通路１６と通路１７が連通し、通路１７がそのスターリ
ング機関における作動ガス封入圧力の大略平均圧の空間
、たとえばクランク室に連結するごとにより、ガス空間
１６の平均圧力を機関内部に封入されている作動ガスの
平均圧力とをほぼ同じに出来る。この場合、ガス空間１
５の容積を適当に選べば、コネクティングロッド等に、
かかる力を低減でき、摺動抵抗を減らすこともできる。FIG. 2 is a longitudinal cross-sectional view of a main part of a Stirling engine according to another embodiment. In order to simplify the explanation, elements common to those in FIG. 1 are given the same numbers as in FIG. 1. In this embodiment, the gas space 16 is configured as a gas space with a spring action, and the displacer 7 moves up and down at approximately the center position.
The passage 16 and the passage 17 communicate with each other, and the passage 17 is connected to a space having approximately the average pressure of the working gas sealed in the Stirling engine, such as a crank chamber, so that the average pressure of the gas space 16 is sealed inside the engine. The average pressure of the working gas can be made almost the same. In this case, gas space 1
If you choose the volume of 5 appropriately, it can be used as a connecting rod, etc.
Such force can be reduced, and sliding resistance can also be reduced.
本実施例では述べていないが、ガス空間１５の容積を可
変にすることも、負荷変動に対応するのに有効であるこ
とは無論である。Although not described in this embodiment, it goes without saying that making the volume of the gas space 15 variable is also effective in responding to load fluctuations.
発明の効果
本発明は、フリーピストン型スターリング機関において
、クランク機構やこれに相当する機構によりディスプレ
ーサを駆動し、ディスプレーサと同軸上にガス空間を備
えることにより、制御も容易で・ディスプレーサを駆動
する為の外部動力も少なくでき、その為に小型で制御性
の良いスターリング機関を得ることができる。Effects of the Invention The present invention provides a free piston type Stirling engine in which the displacer is driven by a crank mechanism or a mechanism equivalent thereto, and a gas space is provided coaxially with the displacer, thereby making it easy to control. The external power required for the engine can be reduced, making it possible to obtain a compact Stirling engine with good controllability.
第１図は本発明の一実施例のフリーピストン式スターリ
ング機関の概略縦断面図、第２図は本発明の異なる実施
例の要部縦断面図である。
２°・・・・・固定子巻線、３・・・・・・ロータ、４
・・・・・・クランク軸、６・・・・・コネクティング
ロッド、了・・・・・ディスプレーサ、１３・・・・・
・動力ビストン、１６．１７・・・・・・通路。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
／ハ？７濁りりFIG. 1 is a schematic longitudinal sectional view of a free piston type Stirling engine according to one embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a main part of a different embodiment of the present invention. 2°...Stator winding, 3...Rotor, 4
...Crankshaft, 6...Connecting rod, End...Displacer, 13...
- Power piston, 16.17... passage. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure/Ha? 7 cloudy
Claims (2)
相当する機構により駆動されるディスプレーサによって
高温空間と低温空間とに分割し、前記高温空間と前記低
温空間との間に、加熱器、再生器および冷却器を配した
側路を形成し、前記ディスプレーサと同軸上にディスプ
レーサの直径より小さい直径で形成するガス空間を備え
たフリーピストン式スターリング機関。(1) The space inside the cylinder is divided into a high-temperature space and a low-temperature space by a displacer driven by a crank mechanism or an equivalent mechanism, and a heater, a regenerator, and a A free piston Stirling engine having a gas space formed coaxially with the displacer and having a diameter smaller than the diameter of the displacer, forming a side passage in which a cooler is arranged.
置に配し、前記ガス空間と作動ガス空間における平均圧
力を持つ空間と連通される通路を備えた特許請求の範囲
第１項記載のフリーピストン式スターリング機関。(2) The free piston according to claim 1, wherein the gas space is disposed approximately at the center of the reciprocating motion of the displacer, and includes a passage communicating with a space having an average pressure in the gas space and the working gas space. Formula Stirling engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159031A JP2718920B2 (en) | 1986-07-07 | 1986-07-07 | Free piston type Stirling engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159031A JP2718920B2 (en) | 1986-07-07 | 1986-07-07 | Free piston type Stirling engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6316159A true JPS6316159A (en) | 1988-01-23 |
| JP2718920B2 JP2718920B2 (en) | 1998-02-25 |
Family
ID=15684744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61159031A Expired - Lifetime JP2718920B2 (en) | 1986-07-07 | 1986-07-07 | Free piston type Stirling engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2718920B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02127758U (en) * | 1989-03-30 | 1990-10-22 | ||
| US5345765A (en) * | 1990-04-17 | 1994-09-13 | Esd Engines Limited | Stirling engines |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59168249A (en) * | 1983-03-14 | 1984-09-21 | Sanyo Electric Co Ltd | Stirling engine |
| JPS6043157A (en) * | 1983-08-20 | 1985-03-07 | Matsushita Electric Ind Co Ltd | Stirling engine |
| JPS60243351A (en) * | 1984-05-17 | 1985-12-03 | Matsushita Electric Ind Co Ltd | Stirling engine |
-
1986
- 1986-07-07 JP JP61159031A patent/JP2718920B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59168249A (en) * | 1983-03-14 | 1984-09-21 | Sanyo Electric Co Ltd | Stirling engine |
| JPS6043157A (en) * | 1983-08-20 | 1985-03-07 | Matsushita Electric Ind Co Ltd | Stirling engine |
| JPS60243351A (en) * | 1984-05-17 | 1985-12-03 | Matsushita Electric Ind Co Ltd | Stirling engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02127758U (en) * | 1989-03-30 | 1990-10-22 | ||
| US5345765A (en) * | 1990-04-17 | 1994-09-13 | Esd Engines Limited | Stirling engines |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2718920B2 (en) | 1998-02-25 |
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