JPH0240060A - Stirling engine - Google Patents
Stirling engineInfo
- Publication number
- JPH0240060A JPH0240060A JP18962488A JP18962488A JPH0240060A JP H0240060 A JPH0240060 A JP H0240060A JP 18962488 A JP18962488 A JP 18962488A JP 18962488 A JP18962488 A JP 18962488A JP H0240060 A JPH0240060 A JP H0240060A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- valve
- heat
- pressure vessel
- heater
- 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
Links
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 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
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005855 radiation Effects 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
-
- 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
- F02G2254/00—Heat inputs
- F02G2254/30—Heat inputs using solar radiation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、無効容積を有するスターリングエンジンに関
する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a Stirling engine with dead volume.
(従来の技術)
外燃機関であるスターリングエンジンは、作動空間に封
入された作動ガスをクーラにより外部冷却しながら低温
(等温)圧縮し、又、ヒータにより外部加熱しながら高
温(等温)膨張させると共に、その間に等容加熱と冷却
をなす基本サイクルを有す。ヒータへの加熱は、ガソリ
ン等の燃料や太陽熱を利用でき、そのエネルギーの種類
を問わない。(Prior art) The Stirling engine, which is an external combustion engine, compresses the working gas sealed in the working space at a low temperature (isothermally) while externally cooling it with a cooler, and expands it at a high temperature (isothermally) while externally heating it with a heater. It also has a basic cycle of equal volume heating and cooling in between. Fuel such as gasoline or solar heat can be used to heat the heater, and the type of energy does not matter.
このようなスターリングエンジンの一例は米国特許第4
,457,133号明細書に開示されるが、ここでは、
本発明の一例を示す第1図を基にその基本構成を示す。An example of such a Stirling engine is U.S. Pat.
, 457, 133, herein:
The basic configuration of the present invention will be shown based on FIG. 1 showing an example of the present invention.
スターリングエンジン1を構成するシリンダ22′−内
には作動ピストン3.3′ −が往復動自在に配され、
シリンダ2. 2’−内部に膨脹室4゜4′−と圧縮室
5.5=−とが画定され、隣り合う圧縮室5と膨脹室4
′とはヒータ6.6′−と再生器7.7’−及びクーラ
8.8=−を介して連通させる。各ピストン3.3=一
往復動はロンドを介して出力取出機構9から回転トルク
として外部に取出す。An operating piston 3.3'- is arranged in a cylinder 22'- which constitutes the Stirling engine 1 so as to be able to freely reciprocate.
Cylinder 2. An expansion chamber 4゜4'- and a compression chamber 5.5=- are defined inside 2'-, and the adjacent compression chamber 5 and expansion chamber 4
' is communicated with through a heater 6.6'-, a regenerator 7.7'-, and a cooler 8.8=-. Each piston 3.3 = one reciprocating motion is extracted from the output extraction mechanism 9 to the outside as rotational torque via the iron.
ヒータ6.6’−を介して作動空間内に封入されたヘリ
ウムや水素のような作動ガスが集光器10からの太陽熱
により加熱される。勿論、ヒータ66′−を燃焼熱によ
って加熱してもよい。尚、11は温度センサを示す。A working gas such as helium or hydrogen sealed in the working space is heated by solar heat from the concentrator 10 via a heater 6 , 6 ′-. Of course, the heater 66' may be heated by combustion heat. Note that 11 indicates a temperature sensor.
(本発明が解決しようとする課題)
スターリングエンジンの作動空間を、仕事に関与しない
無効容積に連通させて、該連通を一方向弁と開口を調整
できる弁とによって制御する例は、米国特許第3,81
7,035号明細書に開示されている。(Problems to be Solved by the Present Invention) An example in which the working space of a Stirling engine is communicated with a dead volume that does not involve work and the communication is controlled by a one-way valve and a valve whose opening can be adjusted is disclosed in US Pat. 3,81
No. 7,035.
この例は、前述した弁の開度を作動空間に通じる最低又
は最高サイクル圧カラインのガス圧に応じて調整するも
のであるから、たとえば、ヒータを集光器を介して太陽
エネルギーで加熱するエンジンでは、太陽エネルギーが
低から高へと急激に変化すると、作動空間のガス量は一
定であるから、ガスへの吸熱量に限界を生じ、ヒータ管
壁を異常に昇温させ、ヒータを溶解させる。In this example, the opening degree of the valve mentioned above is adjusted according to the minimum or maximum cycle pressure gas pressure communicating with the working space. Now, when the solar energy suddenly changes from low to high, since the amount of gas in the working space is constant, there is a limit to the amount of heat absorbed by the gas, causing the heater tube wall to abnormally rise in temperature and melting the heater. .
それ故に、本発明は、前述した不具合を解消させること
を解決すべき課題とする。Therefore, it is an object of the present invention to solve the above-mentioned problems.
(課題を解決するための手段)
本発明は、前述した課題を解決するために、スターリン
グエンジンの作動空間をヒータに入力される太陽エネル
ギーの量によってその開度が調整される流量制御弁を介
して圧力容器に連通させる手段を基本的に用いる。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention controls the working space of a Stirling engine through a flow control valve whose opening degree is adjusted depending on the amount of solar energy input to the heater. Basically, a means is used to connect the pressure vessel to the pressure vessel.
(作 用)
本発明は、作動空間に流量制御弁を介して圧力容器に連
通し、仕事に関与しない無効容積と調整している。従っ
て、ヒータへ入力される熱ffQinが増大すると弁を
閉じ、ヒータ管内の作動ガスの流量を増大させる。熱量
Qinが増大してもヒータ内のガス流量もその分天とな
っているので、作動ガスの吸熱能が高く作動ガスの温度
を、熱量Qinの増大にも拘らず、一定とすることがで
きる。(Function) In the present invention, the working space is communicated with the pressure vessel via the flow rate control valve, and is adjusted to have an ineffective volume that does not participate in work. Therefore, when the heat ffQin input to the heater increases, the valve is closed and the flow rate of the working gas in the heater pipe is increased. Even if the amount of heat Qin increases, the gas flow rate within the heater also increases accordingly, so the working gas has a high endothermic ability and the temperature of the working gas can be kept constant despite the increase in the amount of heat Qin. .
(実施例)
本発明の一例を第1図に示すスターリングエンジン1に
組込んだので、従来の技術の項で説明した構成について
はその説明を省略し、付加した部分についてのみ以下に
説明する。(Example) Since an example of the present invention was incorporated into the Stirling engine 1 shown in FIG. 1, the explanation of the configuration explained in the section of the prior art will be omitted, and only the added parts will be explained below.
作動空間をヒータ6.6’−に入力される太陽エネルギ
ーの量によってその開度が調整される流量制御弁12を
介して圧力容器13に連通させる。The working space is communicated with the pressure vessel 13 via a flow control valve 12 whose opening degree is adjusted depending on the amount of solar energy input to the heater 6.6'.
圧力容器12内は仕事に関与しない無効容積となり、無
効容積の制御(弁12の開度制御)することで作動ガス
の熱量Qinの吸収量を調整可能とする。The inside of the pressure vessel 12 is a dead volume that does not participate in work, and by controlling the dead volume (controlling the opening degree of the valve 12), it is possible to adjust the absorption amount of the heat amount Qin of the working gas.
集光器18に該集光器18からの総数射熱1iQinを
センサ11で検知し、図示しないコントローラに送り、
測定熱量Qinに応じた設定弁開度αを算出し、実際の
開度をこの弁12の開度αとする。The sensor 11 detects the total radiation heat 1iQin from the condenser 18 and sends it to a controller (not shown).
A set valve opening degree α corresponding to the measured amount of heat Qin is calculated, and the actual opening degree is set as the opening degree α of the valve 12.
弁12の開度αの調整は作動空間内のガス量の調節とな
る。Adjustment of the opening degree α of the valve 12 corresponds to adjustment of the amount of gas in the working space.
即ち、弁12を閉じると、無効容積へのガス量を小さく
し、作動空間のガス量を増大させる。That is, when the valve 12 is closed, the amount of gas flowing into the inactive volume is reduced and the amount of gas in the working space is increased.
この動作を第2図に関連して説明する。スタート時には
弁12を全開とし、太陽からの熱量Qinをヒータ6.
6’−に放射することで、ヒータ6゜6′−への入力熱
量Qinを増大させると共に弁12を閉じ始め作動空間
へのガス量を大とする。熱量Qinが下れば、弁12を
開とし、作動空間のガス量を減少させる。This operation will be explained in conjunction with FIG. At the start, the valve 12 is fully opened and the amount of heat Qin from the sun is transferred to the heater 6.
6'-, the amount of heat Qin input to the heater 6°6'- increases, and the valve 12 begins to close, increasing the amount of gas flowing into the working space. When the amount of heat Qin decreases, the valve 12 is opened to reduce the amount of gas in the working space.
このような操作の繰り返しが作動ガスの温度Tを一定に
する。Repeating such operations makes the temperature T of the working gas constant.
第3図にP−V線図を示すが、弁12を全開から全開へ
と変化(作動ガス量の増大、但しガス温度はぼ一定)さ
せることで、仕事量の増大が可能となる。即ち、熱量Q
i nの増大は出力上昇となる。A P-V diagram is shown in FIG. 3, and by changing the valve 12 from fully open to fully open (increasing the amount of working gas, but keeping the gas temperature approximately constant), it is possible to increase the amount of work. That is, the amount of heat Q
An increase in i n results in an increase in output.
(効 果)
本発明はヒータへの入力熱量によってガス温度を一定と
するように作動空間へのガス量を調整しているので、熱
量によって出力制御が可能となる。(Effects) Since the present invention adjusts the amount of gas to the working space so as to keep the gas temperature constant depending on the amount of heat input to the heater, it is possible to control the output based on the amount of heat.
第1図はスターリングエンジンの分解図、第2図はQi
n、 T、 αの関係を示すグラフ図、第3図はpv線
図である。
図中:2.2”−シリンダ、3.3=−作動ピストン、
4.4’−圧縮室、5.5’−膨脹室、6.6’−−−
ヒータ、7.7’−再生器、8.8′クーラ、12−流
量制御弁、13−圧力容器。
代理人 弁理士 桑 原 英 明Figure 1 is an exploded view of a Stirling engine, Figure 2 is a Qi
A graph diagram showing the relationship between n, T, and α, and FIG. 3 is a pv diagram. In the diagram: 2.2”-cylinder, 3.3=-actuating piston,
4.4'-compression chamber, 5.5'-expansion chamber, 6.6'---
Heater, 7.7'-Regenerator, 8.8' Cooler, 12-Flow control valve, 13-Pressure vessel. Agent Patent Attorney Hideaki Kuwahara
Claims (1)
とに区画し両室をクーラ、再生器とヒータを介して連通
させた作動空間に作動ガスを封入したスターリングエン
ジンにおいて、前記作動空間をヒータに入力される太陽
エネルギーの量によってその開度が調整される流量制御
弁を介して圧力容器に連通させているスターリングエン
ジン。In a Stirling engine, the space inside the cylinder is divided into a compression chamber and an expansion chamber by a working piston, and both chambers are communicated via a cooler, a regenerator, and a heater, and a working gas is filled in the working space. A Stirling engine is connected to a pressure vessel through a flow control valve whose opening degree is adjusted depending on the amount of solar energy input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18962488A JPH0240060A (en) | 1988-07-30 | 1988-07-30 | Stirling engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18962488A JPH0240060A (en) | 1988-07-30 | 1988-07-30 | Stirling engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0240060A true JPH0240060A (en) | 1990-02-08 |
Family
ID=16244411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18962488A Pending JPH0240060A (en) | 1988-07-30 | 1988-07-30 | Stirling engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240060A (en) |
-
1988
- 1988-07-30 JP JP18962488A patent/JPH0240060A/en active Pending
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