JPS62214259A - Shaft seal device for stirling engine - Google Patents
Shaft seal device for stirling engineInfo
- Publication number
- JPS62214259A JPS62214259A JP5857786A JP5857786A JPS62214259A JP S62214259 A JPS62214259 A JP S62214259A JP 5857786 A JP5857786 A JP 5857786A JP 5857786 A JP5857786 A JP 5857786A JP S62214259 A JPS62214259 A JP S62214259A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- chamber
- gas
- pressure
- check valve
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects 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
- 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
- F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 不発明は、スターリング機関の軸封装置に関する。[Detailed description of the invention] (Industrial application field) The invention relates to a shaft sealing device for a Stirling engine.
（従来の技術）
スターリング機関の出力は、作動ガスの平均圧力にはｙ
比例することから、作動空間を作る作動ピストンとクラ
ンク機構等の出力取出機構とを連結するロッドを介して
作動ガスが洩れ該ガスの圧が下がるのを防ぐことは必要
なことである。このため、特公昭５５−２２６２１号公
報に開示される如き軸封装置が提案されている。(Prior art) The output of a Stirling engine is y for the average pressure of the working gas.
Because of the proportionality, it is necessary to prevent the pressure of the working gas from leaking through the rod that connects the working piston that creates the working space and the output extraction mechanism, such as a crank mechanism, and reducing the pressure of the gas. For this reason, a shaft sealing device as disclosed in Japanese Patent Publication No. 55-22621 has been proposed.
同公報に示される例を第２図に示す。作動空間１からガ
イドピストン２へと延在するロッド３まわりの中間部材
４に、ガスシール５、中間室６、オイルスクレー／４’
７ 、オイル室８、オイルシール９を配し、オイルス
クレーａ？ ７をスプリング１０にエリオイルシール９
側に押える。オイル室８は、オイル分離器１１に通じ、
又、オイル分離室１２はフィルターおよび回路１３と逆
止弁１４を介して作動空間１に通じる。An example shown in the publication is shown in FIG. An intermediate member 4 around a rod 3 extending from the working space 1 to the guide piston 2 is provided with a gas seal 5, an intermediate chamber 6, and an oil scraper/4'.
7, oil chamber 8, oil seal 9 arranged, oil scraper a? 7 to spring 10 and Eli oil seal 9
Press to the side. The oil chamber 8 communicates with an oil separator 11,
The oil separation chamber 12 also communicates with the working space 1 via a filter and circuit 13 and a check valve 14.
（発明が解決しょうとする問題点）
第２図に示す従来例では、中間室６ヘガスシール５を介
して洩れた作動ガスがオイル室８を通ってオイル分離器
１１に入り、作動空間１の圧が下がると、回路１３と逆
止弁１４を介して作動ガスが作動空間１に逆流する。し
かし、オイル室８を介して作動ガスをオイル分離器１１
に戻すため、ガスを含んだオイルがオイルシール９のシ
ール面に付着し、やがて、作動ガスがガイドピストン２
側に洩れることになる。(Problems to be Solved by the Invention) In the conventional example shown in FIG. When the pressure decreases, the working gas flows back into the working space 1 via the circuit 13 and the check valve 14. However, the working gas is transferred to the oil separator 11 via the oil chamber 8.
In order to return to
It will leak to the side.
（問題点を解決するための手段）
本発明は、オイル室とオイル分離室とを連通させ、これ
とは別に、中間室とオイル分離室とを逆止弁を介して連
通させ、又、中間室と増圧弁の下流側とを逆止弁を介し
て連通させる技術的手段を用い、前述した問題点を解決
する。(Means for Solving the Problems) The present invention allows an oil chamber and an oil separation chamber to communicate with each other, and separately communicates an intermediate chamber and an oil separation chamber via a check valve. The above-mentioned problems are solved by using a technical means of communicating the chamber and the downstream side of the pressure increase valve via a check valve.
（作 用）
最低サイクル圧ラインの作動ガスを上昇させると、第４
の逆止弁を介して中間室の圧も上り、ガスシールの両側
の圧の差を小さくシ、又、ライン圧を下けると、第３の
逆止弁を介して中間室のガス圧をライｙｌｃ戻すことが
できる。ガスシールを介して中間室に入ったガスは、オ
イル室に入ることなくオイル分離室又はラインに戻され
る。又、オイルスクレー・譬を介し゛〔中間室へ入った
オイルは第３の逆止弁を介してガスと共にオイル分離室
に戻される。(Function) When the working gas in the lowest cycle pressure line is increased, the fourth
The pressure in the intermediate chamber also increases through the third check valve, reducing the pressure difference on both sides of the gas seal, and when the line pressure decreases, the gas pressure in the intermediate chamber increases through the third check valve. You can bring it back. Gas entering the intermediate chamber via the gas seal is returned to the oil separation chamber or line without entering the oil chamber. Also, the oil that has entered the intermediate chamber via the oil scraper is returned to the oil separation chamber along with the gas via the third check valve.
（実施例）
第１図に本発明の実施例を示す。圧縮室となる作動空間
１５を作動ピストン１６によりシリンダ１Ｔ内に作り、
作動ピストン１６をガイドピストン１８にロッド１９を
介して連結する。(Example) FIG. 1 shows an example of the present invention. A working space 15 serving as a compression chamber is created in the cylinder 1T by a working piston 16,
The working piston 16 is connected to the guide piston 18 via a rod 19.
ガイドピストン１８はクランク機構等の出力取出機構と
連動する。ワンド１９ｔ／′ｉ、中間部材２０を貫通す
る。中間部材２０には、作動空間１５側から、ガスシー
ル２１、中間案２２、オイルスクレーパ４２３ 、オイ
ル室２４お工びオイルシール２５を順次配す。The guide piston 18 is interlocked with an output extraction mechanism such as a crank mechanism. The wand 19t/'i passes through the intermediate member 20. In the intermediate member 20, a gas seal 21, an intermediate draft 22, an oil scraper 423, an oil chamber 24, and an oil seal 25 are arranged in order from the working space 15 side.
作動空間１５は、第１の逆止弁２６と減圧弁２７を有す
る最高サイクル圧ライン２８を用いて圧縮機２９に連通
させ、又、作動空間１５は、第２の逆止弁３０と増圧弁
３１及びガスタンク３２を有する最低サイクル圧ライン
３３を用いて圧縮機２９に連通する。増圧弁３１の開は
作動空間１５のガス圧を上げ機関出力を増大させる。減
圧弁２７の開は、作動空間１５のガス圧を下げ機関出力
を低下させる。The working space 15 communicates with the compressor 29 using a maximum cycle pressure line 28 having a first check valve 26 and a pressure reducing valve 27, and the working space 15 communicates with a compressor 29 using a maximum cycle pressure line 28 having a first check valve 26 and a pressure reducing valve 27. A minimum cycle pressure line 33 having a gas tank 31 and a gas tank 32 is used to communicate with the compressor 29 . Opening the pressure increase valve 31 increases the gas pressure in the working space 15 and increases the engine output. Opening the pressure reducing valve 27 lowers the gas pressure in the working space 15 and reduces the engine output.
中間室２２の下部を、第３の逆止弁３４を介してオイル
分離器３５の内部に連通させ、中間室２２からオイル分
離器３５内部へのガスの流れを可能にする。オイル分離
器３５の内部を、回路３６を介して増圧弁３１の下流側
に接続させ、該回路３６を第４の逆止弁３７を介して中
間室２２の上部側に接続する。第４の逆止弁３７は増圧
弁３１の下流側の圧を中間室２２に供給する。３Ｂはオ
イルフィルタである。The lower part of the intermediate chamber 22 is communicated with the interior of the oil separator 35 via the third check valve 34, allowing gas to flow from the intermediate chamber 22 into the interior of the oil separator 35. The inside of the oil separator 35 is connected to the downstream side of the pressure increase valve 31 via a circuit 36, and the circuit 36 is connected to the upper side of the intermediate chamber 22 via a fourth check valve 37. The fourth check valve 37 supplies the pressure on the downstream side of the pressure increase valve 31 to the intermediate chamber 22 . 3B is an oil filter.
オイル室２４はオイル分離器３５内のオイル貯りと連通
し、オイル室２４内に常時オイルを供給する。The oil chamber 24 communicates with an oil reservoir in an oil separator 35, and oil is constantly supplied into the oil chamber 24.
増圧弁３１の開による作動ガスの増圧は、回路３６及び
第４の逆止弁３Ｔを介して中間室２２に伝達され、ガス
シール２１０両側での差圧を小さくシ、ガスシール２１
の負担を小さくしシール性を高める。減圧弁２７の開に
よる作動ガスの減圧は、第３の逆止弁３４を介して中間
室２２の圧を減少させることになるので、ガスシール２
１０両側の差圧を小さくする。The increase in pressure of the working gas due to the opening of the pressure increase valve 31 is transmitted to the intermediate chamber 22 via the circuit 36 and the fourth check valve 3T, reducing the differential pressure on both sides of the gas seal 210, and increasing the pressure of the working gas by opening the pressure increase valve 31.
Reduces the burden and improves sealing performance. Reducing the pressure of the working gas by opening the pressure reducing valve 27 reduces the pressure in the intermediate chamber 22 via the third check valve 34, so the gas seal 2
10 Reduce the differential pressure on both sides.
中間室２２からオイル室２４を介してオイル分離器３５
の内部に流入するガス通路はなく、オイルスクレーパ２
３を介して中間室２２に入ったオイルは、逆止弁３４を
介して（中間室の圧が高い時）オイル分離器３５内に戻
り、作動空間１５へ入ることはない。これは、オイルシ
ール２１のシール面にガス混入のオイルを供給させず、
ガス洩れを防止できる。Oil separator 35 from intermediate chamber 22 via oil chamber 24
There is no gas passage flowing into the inside of the oil scraper 2.
The oil that has entered the intermediate chamber 22 via the valve 3 returns into the oil separator 35 via the check valve 34 (when the pressure in the intermediate chamber is high) and does not enter the working space 15. This prevents gas-containing oil from being supplied to the sealing surface of the oil seal 21.
Can prevent gas leaks.
（効 果）
本発明は、急な機関出力の増減時にも、中間室のガス圧
を作動空間のガス圧に追従できるので、ガスシールにか
＼る負担は小さく、がスシールを介してのガス洩れは少
ない。よって、機関出力の安定が得られるし、ガスシー
ルの耐久性を向上させ得る。さらに、オイル室へのガス
の洩れは、中間室の圧とオイル室の圧とがオイル分離器
の内部で釣合うので、はとんどなく、オイルシールとガ
スの接触がなく、オイルクールの耐久性を向上させる。(Effects) The present invention allows the gas pressure in the intermediate chamber to follow the gas pressure in the working space even when the engine output suddenly increases or decreases, so the load on the gas seal is small and the gas pressure through the gas seal is small. There is little leakage. Therefore, it is possible to stabilize the engine output and improve the durability of the gas seal. Furthermore, gas leakage into the oil chamber is almost impossible because the pressure in the intermediate chamber and the pressure in the oil chamber are balanced inside the oil separator, and there is no contact between the oil seal and the gas, and the gas leaks into the oil cool. Improve durability.
第１図は本発明会−例を示す説明図、第２図は従来例を
示す断面図である。
図中： １５・・・作動空間、１６・・・作動ピストン
、１９・・・Ｃｕ２）’、２０・・・中間部材、２１・
・・がスシール、２２・・・中間’！、２３・・・オイ
ルク−ノや、２４・・・オイル室、２５・・・オイルク
ール、２７・・・減圧弁、２８・・・最高サイクル圧ラ
イン、２９・・・圧ｍｅｔ、ｓｌ・・・増圧弁、３３・
・・最低サイクル圧ライン、３５・・・オイル分離器。FIG. 1 is an explanatory view showing an example of the present invention, and FIG. 2 is a sectional view showing a conventional example. In the figure: 15... Working space, 16... Working piston, 19... Cu2)', 20... Intermediate member, 21...
...is Susheel, 22...middle'! , 23...Oil cooker, 24...Oil chamber, 25...Oil cool, 27...Pressure reducing valve, 28...Maximum cycle pressure line, 29...Pressure met, sl...・Pressure increase valve, 33・
...Minimum cycle pressure line, 35...Oil separator.
Claims (1)
サイクル圧ラインにより作動空間に連通させ且つ該圧縮
機を増圧弁と第２の逆止弁を有する最低サイクル圧ライ
ンにより前記作動空間に連通させるスターリング機関に
、前記作動空間を作る作動ピストンと出力取出機機構と
を連結するロッドまわりに中間部材を用いて配される軸
封装置において、該軸封装置が前記作動空間側から前記
中間部材に順次配されるガスシール、中間室、オイルス
クレーパ、オイル室、オイルシールを有し、前記オイル
室をオイル分離室に連通し、前記中間室を前記オイル分
離室へのみ開とする第３の逆止弁を介して前記オイル分
離室に連通させ且つ前記中間室を該中間室側へのみ開と
なる第４の逆止弁を介して前記増圧弁と前記第２の逆止
弁との間の前記最低圧サイクル圧ラインに連通させるこ
とを特徴とするスターリング機関の軸封装置。A compressor for working gas is communicated with the working space by a maximum cycle pressure line having a pressure reducing valve and a first check valve, and the compressor is connected to the working space by a minimum cycle pressure line having a pressure increasing valve and a second check valve. In a shaft sealing device that is disposed using an intermediate member around a rod that connects an operating piston that creates the operating space and an output take-out mechanism in a Stirling engine that communicates with a space, the shaft sealing device is arranged from the operating space side. The intermediate member has a gas seal, an intermediate chamber, an oil scraper, an oil chamber, and an oil seal arranged in sequence, and the oil chamber is communicated with an oil separation chamber, and the intermediate chamber is open only to the oil separation chamber. The pressure increase valve and the second check valve are connected to each other through a fourth check valve that communicates with the oil separation chamber through a third check valve and opens the intermediate chamber only toward the intermediate chamber. A shaft sealing device for a Stirling engine, characterized in that it communicates with the lowest pressure cycle pressure line between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5857786A JPS62214259A (en) | 1986-03-17 | 1986-03-17 | Shaft seal device for stirling engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5857786A JPS62214259A (en) | 1986-03-17 | 1986-03-17 | Shaft seal device for stirling engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62214259A true JPS62214259A (en) | 1987-09-21 |
| JPH0362899B2 JPH0362899B2 (en) | 1991-09-27 |
Family
ID=13088299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5857786A Granted JPS62214259A (en) | 1986-03-17 | 1986-03-17 | Shaft seal device for stirling engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62214259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056419A (en) * | 1989-07-21 | 1991-10-15 | Aisin Seiki Kabushiki Kaisha | Sealing device for a piston rod of a stirling engine |
| CN104454231A (en) * | 2009-02-11 | 2015-03-25 | 斯特林能源股份有限公司 | Stirling engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6097349U (en) * | 1983-12-07 | 1985-07-03 | アイシン精機株式会社 | Oil separator for Stirling engine sealing device |
| JPS60159859U (en) * | 1984-03-31 | 1985-10-24 | アイシン精機株式会社 | Stirling engine rod seal |
-
1986
- 1986-03-17 JP JP5857786A patent/JPS62214259A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6097349U (en) * | 1983-12-07 | 1985-07-03 | アイシン精機株式会社 | Oil separator for Stirling engine sealing device |
| JPS60159859U (en) * | 1984-03-31 | 1985-10-24 | アイシン精機株式会社 | Stirling engine rod seal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056419A (en) * | 1989-07-21 | 1991-10-15 | Aisin Seiki Kabushiki Kaisha | Sealing device for a piston rod of a stirling engine |
| CN104454231A (en) * | 2009-02-11 | 2015-03-25 | 斯特林能源股份有限公司 | Stirling engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362899B2 (en) | 1991-09-27 |
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