JPH0781540B2 - Stirling agency - Google Patents

Stirling agency

Info

Publication number
JPH0781540B2
JPH0781540B2 JP60266515A JP26651585A JPH0781540B2 JP H0781540 B2 JPH0781540 B2 JP H0781540B2 JP 60266515 A JP60266515 A JP 60266515A JP 26651585 A JP26651585 A JP 26651585A JP H0781540 B2 JPH0781540 B2 JP H0781540B2
Authority
JP
Japan
Prior art keywords
displacer
piston
space
stirling engine
small
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
JP60266515A
Other languages
Japanese (ja)
Other versions
JPS62126250A (en
Inventor
照丸 原田
憲一 猪田
龍夫 藤田
欣一 足立
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP60266515A priority Critical patent/JPH0781540B2/en
Publication of JPS62126250A publication Critical patent/JPS62126250A/en
Publication of JPH0781540B2 publication Critical patent/JPH0781540B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02G1/045—Controlling
    • 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
    • F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
    • F02G2243/40—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders 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
    • F02G2280/00—Output delivery
    • F02G2280/50—Compressors or pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、スターリング機関の起動及び制御に関する。FIELD OF THE INVENTION The present invention relates to starting and controlling a Stirling engine.

従来の技術 従来、外燃機関であるスターリング機関は、高効率性，
多燃料性，静粛性等の多くの特徴を備えているが、スタ
ーリング機関の中でも機関損失が少なく、高効率が期待
できるものとしてフリーピストン型スターリング機関が
ある。この種のフリーピストン型スターリング機関は、
一般にディスプレーサと動力ピストンがクランク軸やコ
ンロッド等で拘束されていない為、起動や制御が困難で
ある。BACKGROUND ART Conventionally, the Stirling engine, which is an external combustion engine, has high efficiency,
Although it has many features such as multi-fuel property and quietness, the free piston type Stirling engine is one of the Stirling engines that has less engine loss and can be expected to have high efficiency. This type of free piston Stirling engine
Generally, the displacer and power piston are not constrained by the crankshaft, connecting rod, etc., so starting and controlling are difficult.

上記の問題点を解決する為に、従来の起動装置としては
代表的なものとして第３図に示すディスプレーサ本体を
リニアモータで起動させる方法がとられている（特公昭
59−501470号公報）。これはディスプレーサ１の起動の
為にディスプレーサ１に電機子２を固定し、この電機子
２に並んでスターリングエンジンのハウジングにより支
持される固定子３を備えている。この固定子３に巻かれ
たコイルに電力を供給することでディスプレーサを起動
しようとするものである。In order to solve the above-mentioned problems, a method of activating the displacer main body shown in FIG. 3 by a linear motor as a typical conventional activating device has been adopted.
59-501470). It has an armature 2 fixed to the displacer 1 for activation of the displacer 1 and a stator 3 which is arranged next to the armature 2 and which is supported by the housing of the Stirling engine. The displacer is started by supplying electric power to the coil wound around the stator 3.

発明が解決しようとする問題点 しかし、前記従来の方法ではディスプレーサ１は大きい
為、ディスプレーサ１に取付ける電機子２も必然的に大
きくなり、ディスプレーサ１全体が相当重くなる。この
ように重いディスプレーサ１を駆動する為には、周波数
が高くなればなるほど、ディスプレーサ１の慣性力が大
きくなり、強力な推力が必要となり、この為、リニアモ
ータは必然的に大きくなる。また、このように大きい起
動装置はディスプレーサ１と同軸上にもってくるとエン
ジンの冷却器や作動ガス通路の設計が制約される。さら
にディスプレーサ１が軸心より若干でも偏心すると、リ
ニアモータが大きい為ディスプレーサ１は大きな側力を
受け、軸受としても大きくならざるを得ない。However, since the displacer 1 is large in the above-mentioned conventional method, the armature 2 attached to the displacer 1 is necessarily large and the displacer 1 as a whole becomes considerably heavy. In order to drive such a heavy displacer 1, as the frequency becomes higher, the inertial force of the displacer 1 becomes larger and a stronger thrust force is required. Therefore, the linear motor inevitably becomes larger. When such a large starter is brought coaxially with the displacer 1, the design of the engine cooler and the working gas passage is restricted. Further, if the displacer 1 is slightly eccentric from the axis, the displacer 1 receives a large lateral force because the linear motor is large, and the displacer 1 is inevitably large.

そこで、本発明は起動装置をディスプレーサと同軸上に
配置しない構成とし、エンジンの設計を簡単にし、また
小さな起動装置を用いるだけで上記の問題点を解決しよ
うとするものである。In view of this, the present invention aims to solve the above-mentioned problems by arranging the starter not coaxially with the displacer, simplifying the engine design, and using only a small starter.

問題点を解決するための手段 本発明は、ディスプレーサのガスバネとして作用する空
間と、通路を介して小ピストンと小ピストンを駆動する
為の電気力学的手段を有する起動装置を備えたスターリ
ング機関である。Means for Solving the Problems The present invention is a Stirling engine provided with a space acting as a gas spring of a displacer, a small piston through a passage, and a starter having an electrodynamic means for driving the small piston. .

作用 この技術的手段による作用は次のようになる。すなわ
ち、起動装置はディスプレーサと同軸上に配置する必要
がない為、エンジン本体の設計は容易で、又、起動装置
に組み込まれた小ピストンは、ディスプレーサに比べ小
さく軽量の為小ピストンによる慣性力は小さく、電気学
的手段として用いるモータも小さくて済む。この結果、
小型かつ安価な起動手段を得ることが出来る。Action The action of this technical means is as follows. In other words, the starter does not need to be placed coaxially with the displacer, so the engine body can be designed easily, and the small piston incorporated in the starter is smaller and lighter than the displacer, so the inertial force of the small piston is small. It is small and the motor used as an electrical means can be small. As a result,
A small and inexpensive starting means can be obtained.

実 施 例 以下、本発明の一実施例について図面にもとづいて説明
する。Example Hereinafter, an example of the present invention will be described with reference to the drawings.

第１図において、通路４を介してスターリングエンジン
本体の横に取付けられた起動装置内のモータの固定子巻
線５に電力を供給することによりロータ６が回転する
と、ロータ６と一体となったクランク軸７が回転し、コ
ネクティングロッド８で連結した小ピストン９が往復動
する。例えば、小ピストン９が左方に移動すると、ガス
スプリング空間10内の圧力は上昇しディスプレーサ11を
上方に押し上げる。逆に右方に移動すると、ガススプリ
ング空間10内の圧力は減少し、ディスプレーサ11は下方
に移動する。また、第１図から明らかなように、ディス
プレーサ11の断面積に比べてガススプリング空間10の断
面積は小さく、また内容積も小さいため、小ピストン９
の掃気容積が小さくてもディスプレーサ11の移動量は大
きくとれるこのようにして、ディスプレーサ11が上下に
振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12,再生器13,冷却器14を通
って高温空間15及び低温空間16の間を往復する。例え
ば、ディスプレーサ11が上方に移動すると、高温空間15
内にある作動ガスは加熱器12を通り、再生器13でガス自
身のもっている熱を蓄熱し、冷却器14で冷却されて低温
空間16側に移動する。In FIG. 1, when the rotor 6 is rotated by supplying electric power to the stator winding 5 of the motor in the starter mounted beside the Stirling engine main body through the passage 4, the rotor 6 is integrated with the rotor 6. The crankshaft 7 rotates, and the small piston 9 connected by the connecting rod 8 reciprocates. For example, when the small piston 9 moves to the left, the pressure in the gas spring space 10 rises and pushes the displacer 11 upward. Conversely, when moving to the right, the pressure in the gas spring space 10 decreases and the displacer 11 moves downward. Further, as is clear from FIG. 1, since the cross-sectional area of the gas spring space 10 is smaller than the cross-sectional area of the displacer 11, and the internal volume is also small, the small piston 9
Even if the scavenging volume of is small, the moving amount of the displacer 11 can be large.Thus, when the displacer 11 vibrates up and down, the working gas such as helium enclosed in the Stirling engine is heated by the heater 12, the regenerator 13, It reciprocates between the high temperature space 15 and the low temperature space 16 through the cooler 14. For example, when the displacer 11 moves upward, the high temperature space 15
The working gas inside passes through the heater 12, accumulates the heat of the gas itself in the regenerator 13, is cooled in the cooler 14, and moves to the low temperature space 16 side.

この時、動力ピストン17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圧力は下がりピス
トン17を引き上げる。逆に、ディスプレーサ11が下方に
移動すると、低温空間16内にある作動ガスは冷却器14を
通り、再生器13に蓄熱された熱を吸収して、加熱器12で
加熱され高温空間15側に移動する。この時、動力ピスト
ン17の上方側の空間の作動ガスは高温空間15側にある割
合が多くなり作動ガス圧力は上昇し、動力ピストン17を
下方に押し下げる。一度起動を始めると、起動装置を停
止しても加熱，冷却をすることによって生じる圧力変動
によりディスプレーサ11及び動力ピストン17は動き続け
る。At this time, the working gas in the space above the power piston 17 has a large proportion in the low temperature space side, and the pressure is lowered to pull up the piston 17. On the contrary, when the displacer 11 moves downward, the working gas in the low temperature space 16 passes through the cooler 14, absorbs the heat accumulated in the regenerator 13, and is heated by the heater 12 to the high temperature space 15 side. Moving. At this time, the proportion of the working gas in the space above the power piston 17 is on the high temperature space 15 side, and the working gas pressure rises, pushing the power piston 17 downward. Once started, the displacer 11 and the power piston 17 continue to move due to pressure fluctuations caused by heating and cooling even if the starting device is stopped.

このように、小さな起動装置で済み、エンジン本体と同
軸上にする必要がない為、取付は自由で冷却器14や再生
器13等の配置のじゃまにならずエンジン本体の設計は非
常に楽である。又、負荷18とのマッチングの関係で加
熱，冷却の量をおとして、仮にディスプレーサが動き難
くなった場合は起動装置を動作させて補助的にも使える
し、又、エンジンの周波数を変えたい場合も起動装置に
備えているモータの駆動周波数を変えるだけで対応でき
る。In this way, a small starter is sufficient, and there is no need to make it coaxial with the engine body.Therefore, the installation is free and the design of the engine body is very easy without disturbing the arrangement of the cooler 14 and the regenerator 13. is there. In addition, if the displacer becomes difficult to move by reducing the amount of heating and cooling due to the matching with the load 18, it can be used as an auxiliary device by operating the starter, and if you want to change the engine frequency. Can be handled by simply changing the drive frequency of the motor provided in the starter.

次に本発明の他の実施例について説明する。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及び起動装
置を示しており、この実施例では第１図におけるクラン
ク・メカ部の代りにリニアモータ等の電気的往復駆動装
置を用いた例を示す。固定子巻線19にある周波数の交流
や交番的にかかる直流電力を加えると、電機子20が左右
に往復動する。この時電機子と一体に動く小ピストン９
も左右に動き、通路４によって小ピストン側と連結され
ているガススプリング空間10の圧力も変動する。この結
果、ディスプレーサ11は上下に振動する。この場合、小
ピストン９とディスプレーサ11の質量及び断面積は、そ
れぞれの共振周波数がほぼ同じ値になるように設計する
とディスプレーサ11の振幅を大きくとることができる。
又、固定子巻線19に加える電流（あるいは電圧）を変え
ることにより小ピストン９の振幅やディスプレーサ11の
振幅も制御でき、電源の周波数を変えることにより周波
数も変えることが出来る。Next, another embodiment of the present invention will be described. FIG. 2 shows a longitudinal sectional view and a starter of a main part of a Stirling engine of another embodiment. In this embodiment, an electric reciprocating drive device such as a linear motor is used in place of the crank / mechanical part in FIG. The example used is shown below. When an alternating current having a frequency existing in the stator winding 19 or a direct current power applied alternately is applied, the armature 20 reciprocates left and right. The small piston 9 that moves together with the armature at this time
Also moves to the left and right, and the pressure in the gas spring space 10 connected to the small piston side by the passage 4 also fluctuates. As a result, the displacer 11 vibrates up and down. In this case, if the mass and cross-sectional area of the small piston 9 and the displacer 11 are designed so that their resonance frequencies are substantially the same, the amplitude of the displacer 11 can be made large.
Also, the amplitude of the small piston 9 and the amplitude of the displacer 11 can be controlled by changing the current (or voltage) applied to the stator winding 19, and the frequency can be changed by changing the frequency of the power supply.

発明の効果 本発明になるスターリング機関は、小さな起動装置をデ
ィスプレーサのガススプリング空間と連結するように設
けるだけでエンジンを起動出来、設ける位置は自由度が
大きい為エンジンの設計が非常に楽であり、かつ、負荷
変動等に対する制御も可能となる。EFFECTS OF THE INVENTION In the Stirling engine according to the present invention, the engine can be started only by providing a small starter so as to be connected to the gas spring space of the displacer, and the position of installation is large, so the engine design is very easy. In addition, it is possible to control load fluctuations.

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

第１図は本発明の一実施例のスターリング機関の要部及
び起動装置の縦断面図、第２図は本発明の異なる実施例
のスターリング機関の縦断面図、第３図は代表的な従来
例の起動部分の要部縦断面図である。 ４……通路、10……ガスプリング空間、11……ディスプ
レーサ、12……加熱器、13……再生器、14……冷却器、
15……高温空間、16……低温空間、17……動力ピスト
ン、18……負荷。FIG. 1 is a vertical cross-sectional view of a main part of a Stirling engine and a starting device of one embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a Stirling engine of another embodiment of the present invention, and FIG. It is a principal part longitudinal cross-section of the starting part of an example. 4 ... passage, 10 ... gas spring space, 11 ... displacer, 12 ... heater, 13 ... regenerator, 14 ... cooler,
15 …… High temperature space, 16 …… Low temperature space, 17 …… Power piston, 18 …… Load.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤田 龍夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 足立 欣一 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特表 昭57−501294（ＪＰ，Ａ) 米国特許3782859（ＵＳ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuo Fujita 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Kinichi Adachi, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (56) References Special Tables Sho 57-501294 (JP, A) US Patent 3782859 (US, A)

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】シリンダ内の空間を可動するディスプレー
サによって高温空間と低温空間とに分割し、前記高温空
間側に加熱器、前記低温空間側に冷却器、前記加熱器と
前記冷却器の間に再生器を配した側路を形成し、前記低
温空間に於いて、動力を取り出す動力ピストンと、断面
積が前記ディスプレーサの断面積より小さい前記ディス
プレーサのためのガススプリング空間と、前記ガススプ
リング空間に通路を介して連通した小ピストンと、前記
小ピストンを駆動する起動装置を備えたフリーピストン
型スターリング機関。1. A space in a cylinder is divided into a high temperature space and a low temperature space by a movable displacer, a heater is provided on the high temperature space side, a cooler is provided on the low temperature space side, and a space is provided between the heater and the cooler. In the low temperature space, a power piston for extracting power is formed, a gas spring space for the displacer having a cross-sectional area smaller than that of the displacer, and the gas spring space. A free-piston type Stirling engine provided with a small piston communicating through a passage and a starting device for driving the small piston. 【請求項２】小ピストンの駆動装置としてモータとクラ
ンク機構を設けた特許請求の範囲第１項記載のフリーピ
ストン型スターリング機関。2. A free piston type Stirling engine according to claim 1, wherein a motor and a crank mechanism are provided as a drive device for the small piston. 【請求項３】小ピストンの駆動装置としてリニアモータ
を設けた特許請求の範囲第１項記載のフリーピストン型
スターリング機関。3. The free piston type Stirling engine according to claim 1, wherein a linear motor is provided as a drive device for the small piston. 【請求項４】ディスプレーサ及び前記小ピストン側も共
にほぼ共振点に近い値をとるようにバネ系（ガス・バネ
を含む）、前記ディスプレーサと前記小ピストンの面
積、重さを設定した特許請求の範囲第３項記載のフリー
ピストン型スターリング機関。4. A spring system (including a gas spring), an area and a weight of the displacer and the small piston are set so that both the displacer and the small piston have a value close to a resonance point. A free piston type Stirling engine according to claim 3.
JP60266515A 1985-11-27 1985-11-27 Stirling agency Expired - Lifetime JPH0781540B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60266515A JPH0781540B2 (en) 1985-11-27 1985-11-27 Stirling agency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60266515A JPH0781540B2 (en) 1985-11-27 1985-11-27 Stirling agency

Publications (2)

Publication Number Publication Date
JPS62126250A JPS62126250A (en) 1987-06-08
JPH0781540B2 true JPH0781540B2 (en) 1995-08-30

Family

ID=17431972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60266515A Expired - Lifetime JPH0781540B2 (en) 1985-11-27 1985-11-27 Stirling agency

Country Status (1)

Country Link
JP (1) JPH0781540B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138351A (en) * 1987-11-25 1989-05-31 Matsushita Electric Ind Co Ltd Free piston type stirling engine
JPH01244152A (en) * 1988-03-26 1989-09-28 Mitsubishi Electric Corp High temperature side heat exchanger for stirling cycle engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3782859A (en) 1971-12-07 1974-01-01 M Schuman Free piston apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877144A (en) * 1981-10-24 1983-05-10 ナシヨナル・リサ−チ・デイベロプメント・コ−ポレ−シヨン Stirling-cycle machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3782859A (en) 1971-12-07 1974-01-01 M Schuman Free piston apparatus

Also Published As

Publication number Publication date
JPS62126250A (en) 1987-06-08

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