JPS58167860A - Piston for sterling engine - Google Patents
Piston for sterling engineInfo
- Publication number
- JPS58167860A JPS58167860A JP5157082A JP5157082A JPS58167860A JP S58167860 A JPS58167860 A JP S58167860A JP 5157082 A JP5157082 A JP 5157082A JP 5157082 A JP5157082 A JP 5157082A JP S58167860 A JPS58167860 A JP S58167860A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- heat
- shield
- section
- piston head
- 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
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
- F02G1/0535—Seals or sealing arrangements
-
- 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
-
- 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
- F02G2253/02—Reciprocating piston 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
- F02G2258/00—Materials used
- F02G2258/10—Materials used ceramic
-
- 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
- F02G2270/40—Piston assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の抄輔分野〕
本発1I11扛、膨張シリンダと仕組シリンダにそれぞ
れ加熱器と冷却口とを付IN4ゼしめるとともに。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention includes a heater and a cooling port respectively attached to the expansion cylinder and the working cylinder.
両者を再生器によって互いに連結したスターリングエン
ジ/にふ・けるスターリングエンジン用ピストンに関−
fゐ。This article relates to a Stirling engine piston in which both are connected to each other by a regenerator.
f.
〔1#、明の杼術的’1111)およびその間動点〕一
般に、上記スターリングエンレンは、熱エネルギによっ
て膨張シリンダおよび圧縮シリンダ内のピストンを往俵
違動さセる熱サイクル部と、その出力を一1転力として
ルり出てクランク榛構部と會有し、その両シリンダおよ
びそれらを結ぶ加熱器、再生器、冷却器内に、B・、
H雪* kh 等の不##4!t−気体か動作流体とし
″′C充窄されている。[1#, Ming's Shuttle Technique '1111) and their moving points] In general, the above-mentioned Stirling Enren has a thermal cycle section that moves the pistons in the expansion cylinder and the compression cylinder back and forth by thermal energy, and B...
No ##4 such as H snow * kh! It is filled with t-gas or working fluid.
すなわち、第1図扛上1スターリングエンジンの蒙略柳
成図であって、クランク室lの頂伊部には膨張シリンダ
λおよび圧縮シリンダ3か突設されており、上記膨張シ
リンダコには高温熱源によって加熱されゐ加熱器ダが接
続され、圧縮シリンダ3には冷却水によって冷却される
冷却%jか接続啓わており、さらに上配加熱器参および
冷却器jは再生器tを介して互いに!#続されている。In other words, Fig. 1 is a diagram of a Stirling engine, in which an expansion cylinder λ and a compression cylinder 3 are protruded from the top of the crank chamber l, and the expansion cylinder is heated by a high-temperature heat source. The compressor cylinder 3 is connected to the compressor cylinder 3, which is cooled by cooling water, and the upper heater and the cooler j are connected to each other via the regenerator t. #Continued.
一方、上記膨張シリンダコおよび圧動シリンダ3内に社
、それぞれ膨張ピストン7および圧縮ピストンtが往つ
動可能に配設されてふり、両ピストン7、rfiそれぞ
れコネクテイングロッドデ。On the other hand, an expansion piston 7 and a compression piston t are movably disposed in the expansion cylinder and the pressure cylinder 3, respectively, and both pistons 7 and the RFI connecting rod are respectively connected.
l(によつT、前記クランク111円に配設さねたクラ
ンク@//に連結され1両ピストンか互いに所定位相差
例オはデO0を本って往復動するようKL、Tある0
上記膨張シリンダコ、圧縮シリンダJ、加熱器ダ、冷却
器!および再住器t、並ひにそれら會結ぶ配管中には、
H+s 、 Tl鵞、$はN!雛の動作流体か封スされ
ており、両ピスト/部においては両ピストン7、rに装
着さtまたピストンリングによってシール寧t1ている
〇
し力して、加熱勧ダで動作流体か7kl温熱源によって
加熱器わると、その1・作流体か膨張して膨張ピストン
7カ・仕丁され、クランク軸//の回動か行なわれるっ
着た。上記膨張ピストン7か上昇行程に移ると、1・作
流体は加熱器4Aを通過して再生器AK#送され、そこ
で再生器を内に充填されている蓄熱材に熱を与え、?@
却&jへと流れて冷却さね、圧縮ピストンlの上昇行程
に伴なって圧縮される。このようにして圧縮された動作
流体ね逆に加熱器弘訃に流れ、その途中で帽記再生器6
内の蓄熱材力ら熱を・奪いなから泥炭を上昇して、加熱
益ダへ流れ込み、そこで再び高温熱源によって加U贋張
ゼし齢られる〇
ところで、このようカスターリングエンジンにお約る性
能は動作流体の高温部湯度と低温部濁度に強く依存して
ふり、高温部湯度か高い程その熱効率は高くなり、m#
s妙・らの熱リークを極力少なくする必IIkかある〇
そこで、%に膨張ピストンにおいては、第2図に示すよ
うに、ピスト/本体7 a f)頂部にドーム状のピス
トンヘッド713を一体的に装着し、その熱伝導面積を
少なくし、シリンダ内からピストンを軒て放熱さねゐ量
が極力小さくなるようにされている。l(Yotsu T, said crank 111 yen is connected to the crank @//, and both pistons have a predetermined phase difference from each other. In the expansion cylinder, compression cylinder J, heater, cooler!, and rehabitator T, as well as the piping connecting them,
H+s, Tl, $ is N! The working fluid of the chick is sealed, and in both pistons/sections, it is attached to both pistons 7 and r and is sealed by a piston ring. When the heater changes depending on the source, the working fluid expands and the expansion piston 7 is separated, causing the crankshaft to rotate. When the expansion piston 7 moves to the upward stroke, 1. The working fluid passes through the heater 4A and is sent to the regenerator AK#, where it gives heat to the heat storage material filled inside the regenerator. @
Flows into the air and j to be cooled, and is compressed as the compression piston l moves upward. The working fluid compressed in this way flows reversely to the heater heater, and on the way, it passes through the cap regenerator 6.
The heat is taken away from the heat storage material inside the peat, which then rises through the peat and flows into the heating waste, where it is heated again by a high-temperature heat source and aged. depends strongly on the temperature of the high temperature part and the turbidity of the low temperature part of the working fluid, and the higher the temperature of the high temperature part, the higher the thermal efficiency, and m#
It is necessary to minimize heat leakage from the piston/main body 7a f) For the expansion piston, as shown in Fig. 2, a dome-shaped piston head 713 is integrated on the top of the piston/main body 7 The heat conduction area is reduced, and the amount of heat dissipated from the inside of the cylinder by the piston is minimized.
し力、しながら、上記膨張ピストンにおいては約too
’i:程度の高温ガスにさらされるため、熱伝導のみ
ならずピストンヘッドフb部の熱か熱ふく射によってピ
ストン本体71に伝わり一りランク室尋に放熱され、そ
の熱ふく射による熱リークも無精できない程度となって
、それによってエンジンの熱効率が低下すゐ等の間蒙点
かある。force, while in the above expansion piston it is about too
'i: Because it is exposed to high-temperature gas of approximately In some cases, the thermal efficiency of the engine decreases.
本発明夷このような点に鑑み、ピストンの熱ふく射によ
ゐ熱リークを減少せしめ、エンi//の熱効率の低下を
防止し得るようにしたスターリングエンジン用ピストン
を提供jゐことを目的とす゛る・〔発明の概要〕
本発明Lピストン本体の頂端部にドーム状のピストンヘ
ッドt−訟けるとともに、そのピストンヘッド空所内に
その9所を内外に区劃する熱しや蔽体f設すたことを製
徴とする・
〔発明の実施例〕
謝3図は1本桁明のスターリングエンジン用ピスト/の
縦断fil1面図であって、ピストン本体7aの頂部に
は、シリンダ内の圧力に耐えるたけの比較的厚場か薄い
壁厚を有すゐドーム状のピストンヘッド7bか一体的に
連結されておシ、ピストン本体の1lIl壁部には複数
のピスト/リング/2−1)装着され、イのピスト/本
体7aにピストンピン/3t−介【7てコネクテイング
ロッドタの先端か連結されている・
ところで、上記ドーム状のピストンヘッド7b内の空所
内には、その!lTt内外に区劃するセランツク軒の非
金属材料力らなる熱し中藪体/4/が設けられている。In view of these points, it is an object of the present invention to provide a piston for a Stirling engine that can reduce heat leakage due to heat radiation from the piston and prevent a decrease in the thermal efficiency of the engine. [Summary of the Invention] The present invention L has a dome-shaped piston head disposed at the top end of the piston body, and a heating shield F is installed in the piston head cavity to separate nine parts from inside and outside. [Embodiment of the Invention] Figure 3 is a vertical cross-sectional view of a piston for a Stirling engine with a straight line, and the top of the piston body 7a has a structure that can withstand the pressure inside the cylinder. A dome-shaped piston head 7b having a relatively thick or thin wall thickness is integrally connected, and a plurality of pistons/rings/2-1) are attached to the wall portion of the piston body. The tip of the connecting rod is connected to the piston/body 7a of A by way of the piston pin/3t. A heating center /4/ made of non-metallic materials of Selantsk eaves is provided inside and outside the ITt.
上記熱し中藪体/l110 tr記ピストンヘッド7b
の壁厚よりさらに薄肉としており、その1111壁部に
は熱し中藪体/+の内外の圧力を均一にする給圧孔13
か穿設さtlておシ、さらにピストン本体の頂壁部には
熱し中鼾体/41内の空所/4L&をピストン本体のコ
ネクテイングー空間ltと連通する均圧孔17が設けら
れているO
しかして、ピスト/ヘッド7bのm部カ・らのふく射熱
は、ピストンヘッド7b内の空所にhtiらねた熱しゃ
動体/41によってし中蔽され、ピストン本体7aへの
熱ふく射による熱伝達が防止される・また、上記熱し中
動体/<4ijその内外が均圧孔15によって汗カバラ
ンスさせであるため、逢の肉厚もきわめて薄くすること
ができ、そのため熱し中動体の熱伝導によるピストン本
体へQ熱リークもきわ袷て少4いものとなる。し六かっ
て、シリンダ内の高温にもかかわらずピストン本体の混
成上りhIh小限におさえられ、ピスト/りングの温度
上昇も低下せしに)られ、当骸部の摩擦力を低減させる
ことかでき、それによる出力低下か防止される◎〔折明
の効果〕
以上峠明し六ようく・本発明はピストン本体の重音CK
設けられたドーム状のシリンダヘッドの空所内に、その
9所を内外に区IFllする熱しゃ動体を設ケ六ので、
ピスト/ヘッドからピストン本体への熱ふく射による熱
伝達量音減少ゼしhること力、でき、シリンダ力・らの
熱リークを防止し、エンジンの大幅な効率巨;上を図る
ことかできる0またそれに応じてピストンリング部の温
度上昇を防止できピストンリングのII耗を低減せしめ
ることができて、エンジンのi#久性およびも1性を向
上せしめることかできる擲の効果を奏する・
帆 図体1のヤ岸な峠明
第t [&l (+スターリングエンジンの概略構成図
、12図H従沫のスターリングエンジン用ピストンのf
l:動側面ツ1、第3図社本発明のスターリングエンジ
ン用ピストンの縦断fill 11 !’lである。The above-mentioned heating medium body / l110 tr piston head 7b
It is thinner than the wall thickness, and the 1111 wall has a pressure supply hole 13 that heats and equalizes the pressure inside and outside the core.
Furthermore, a pressure equalizing hole 17 is provided in the top wall of the piston body to communicate the cavity /4L in the heating medium body /41 with the connecting space lt of the piston body. Therefore, the heat radiated from parts M of the piston/head 7b is blocked by the heat shield/41 arranged in the space inside the piston head 7b, and the heat radiated to the piston body 7a. Heat transfer is prevented.In addition, since the inside and outside of the heating medium moving body are balanced by the pressure equalizing holes 15, the wall thickness of the heat transfer body can be made extremely thin. Q heat leakage to the piston body due to conduction is also significantly reduced. Therefore, despite the high temperature inside the cylinder, the mixed rise of the piston body can be suppressed to a minimum, and the temperature rise of the piston/rings can be kept to a minimum (without reducing the temperature rise), reducing the frictional force in the relevant part. ◎ [Effect of the Orientation] The present invention is designed to reduce the heavy sound CK of the piston body.
In the dome-shaped cylinder head cavity provided, a heat shielding body is installed that separates the inside and outside of the nine locations.
It reduces the amount of heat transfer due to heat radiation from the piston/head to the piston body, reduces noise, prevents heat leakage from cylinder force, and greatly increases engine efficiency. In addition, it is possible to prevent the temperature rise of the piston ring part and reduce the wear of the piston ring, which has the effect of improving the durability and performance of the engine. 1 of Yagishi Togemei t [&l (+Schematic configuration diagram of Stirling engine, Figure 12H of the Stirling engine piston f
l: Moving side surface 1, Fig. 3 Vertical cross section of the piston for the Stirling engine of the present invention Fill 11! 'l.
7・・・詑張ピストン、!・・・圧縮ピストン、7a・
・・ピスト/本体、7b・・・ピストンヘッド、 /+
・・・熱し中動体、15 、 /7・・・均圧孔。7...Shoubari piston!・・・Compression piston, 7a・
... Piston/body, 7b... Piston head, /+
... Heating medium moving body, 15, /7... Pressure equalization hole.
小願人代理人 猪 股 清も l 図 氾2 図 も 3 図Petitioner's agent Boar crotch Kiyoshi also figure Flood 2 Figure also Figure 3
Claims (1)
空所内けるとともに、そのピストンヘッド空所内にその
9所を内外に区劃すb熱し中蔽体を般社たことを特徴と
する。スターリングエンジン用ピストン。 ユピストン祉膨張タービンであることを特徴とする。*
許詐求の節回11!、を項紀載のスターリングエンジン
用ピストン・ よ熱じや薇体轄セラミック製でを・ることを特徴とする
特許請求の静囲餉1項箇たけ第コ寝記1のスターリング
エンジン用ピストン。 肌ピストン本体の1a部および熱し中鼾体には、ピスト
ンヘッド部内とコネクチングロッド1119間とを連通
せしめる均圧上が形成されていることを11?!F微と
す、る、特許請求の岬曲第1項記載のスターリングエン
ジン用ピストン。 ([Scope of Claims] 1. A dome-shaped piston head cavity is placed in the top end of the piston body, and a heated intermediate shield is installed inside the piston head cavity, dividing nine areas into the inside and outside. Features. Piston for Stirling engine. It is characterized by being a piston expansion turbine. *
Section 11 of asking for forgiveness! , The piston for a Stirling engine according to paragraph 1 of the patent claim, characterized in that it is made of hot-heated ceramic. 11? It is noted that a pressure equalization area is formed in the part 1a of the skin piston body and the heating rod body to allow communication between the inside of the piston head part and the connecting rod 1119. ! A piston for a Stirling engine according to claim 1 of the patent claim. (
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5157082A JPS58167860A (en) | 1982-03-30 | 1982-03-30 | Piston for sterling engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5157082A JPS58167860A (en) | 1982-03-30 | 1982-03-30 | Piston for sterling engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58167860A true JPS58167860A (en) | 1983-10-04 |
Family
ID=12890615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5157082A Pending JPS58167860A (en) | 1982-03-30 | 1982-03-30 | Piston for sterling engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58167860A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102242681A (en) * | 2010-05-14 | 2011-11-16 | 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 | Method for optimizing function of a piston ring set and piston ring set using the same |
-
1982
- 1982-03-30 JP JP5157082A patent/JPS58167860A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102242681A (en) * | 2010-05-14 | 2011-11-16 | 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 | Method for optimizing function of a piston ring set and piston ring set using the same |
DE102010020490A1 (en) | 2010-05-14 | 2011-11-17 | Man Diesel & Turbo, Filial Af Man Diesel & Turbo Se, Tyskland | Method for optimizing function of piston ring package of piston of piston internal combustion engine, particularly two stroke-diesel engine, involves exposing combustion pressure and pressure existing below piston |
DE102010020490B4 (en) * | 2010-05-14 | 2014-02-13 | Man Diesel & Turbo, Filial Af Man Diesel & Turbo Se, Tyskland | Method for optimizing the function of a piston ring package as well as a suitable piston ring package |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2006518021A (en) | Cold-agent through cold end pressure vessel | |
US3081754A (en) | Internal combustion engines, in particular of the constant pressure cycle type | |
JP2001207908A (en) | Internal combustion engine | |
JPH07293334A (en) | External combustion engine | |
US4774808A (en) | Displacer arrangement for external combustion engines | |
JPS58167860A (en) | Piston for sterling engine | |
JPS63195368A (en) | Piston for two-cycle engine | |
US4760698A (en) | Stirling engine | |
RU142459U1 (en) | COMBINED REGENERATIVE HEAT EXCHANGER OF MICROCRYOGENIC SYSTEM FOR COOLING IN THE TEMPERATURE RANGE OF 35-55 K | |
JPH09152211A (en) | Piston for external combustion engine | |
CN207989169U (en) | Using the double acting Stirling engine of composite heat power supply | |
CN102562356A (en) | Outer heat machine | |
JPS5882049A (en) | Stirling engine | |
JPS6226603Y2 (en) | ||
CN109115016A (en) | A kind of device for realizing enhancing heat transfer | |
JPH0256505B2 (en) | ||
JPS6179843A (en) | Cooler for liquid type stirling engine | |
JPH09152212A (en) | Piston for external combustion engine | |
JP3741300B2 (en) | Pulse tube refrigerator | |
JPH0747945B2 (en) | Stirling engine | |
CN105658940B (en) | Regenerator for external combustion Thermal Motor | |
JPS58167859A (en) | Sterling engine | |
JPH03199854A (en) | Very low temperature refrigerator | |
CN205841034U (en) | A kind of device utilizing temperature difference to convert thermal energy into kinetic energy and dynamical system thereof | |
JPS6224621B2 (en) |