JPS60169657A - Sealing mechanism - Google Patents

Sealing mechanism

Info

Publication number
JPS60169657A
JPS60169657A JP59024261A JP2426184A JPS60169657A JP S60169657 A JPS60169657 A JP S60169657A JP 59024261 A JP59024261 A JP 59024261A JP 2426184 A JP2426184 A JP 2426184A JP S60169657 A JPS60169657 A JP S60169657A
Authority
JP
Japan
Prior art keywords
lubricant
seal rings
cylinder
seal
prevent
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
Application number
JP59024261A
Other languages
Japanese (ja)
Inventor
Kenji Hata
畑　健司
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP59024261A priority Critical patent/JPS60169657A/en
Publication of JPS60169657A publication Critical patent/JPS60169657A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Sealing Devices (AREA)

Abstract

PURPOSE:To prevent operated gas from leaking, reduce friction force and prevent a lubricant from scattering, by mounting two or more seal rings and sealing a part between these seal rings with the lubricant. CONSTITUTION:Seal rings 7 and 7' having an unsymmetrical shaped-section are arranged oppositely facing on a piston 5, and a part between these two seal rings is filled with a lubricant. The seal ring 7' in the side of high pressure is provided with a function preventing the lubricant from infiltrating inside a cylinder. The seal ring 7 in the side of low pressure is provided with a function sealing expansive gas in an engine. The seal rings 7, 7' are arranged in a symmetrical shape interposing the part filled with the lubricant.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 本発明はＨｅ　ガス膨張エンジンに関する。[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a He gas expansion engine.

〔従来技術とその問題点〕[Prior art and its problems]

従来技術によるＩ（ｅガス膨張エンジンは作動ガスであ
るヘリウムの汚染を防ぐためピストンと７９７５間の密
封を第１図に示すように０リング２の外側に樹脂性の摺
動リング３を装着してドライ雰囲気で潤滑を行なってい
る。In the conventional I(e gas expansion engine), a resin sliding ring 3 is attached to the outside of the O-ring 2 as shown in Fig. 1 to seal between the piston and the 7975 in order to prevent contamination of helium, which is the working gas. Lubrication is performed in a dry atmosphere.

しかしこのような密封機構は次のような欠点を持ってい
る。すなわち樹脂性リング３にシリンダ４との気密性を
持たせるためにＯリングにある程度締めじろを与えてい
るがこのためにピストンの摺動抵抗が大きく、また樹脂
性摺動リングの摩耗が起こ勺易いという問題がある。こ
の対策として樹脂性摺動リング部をグリス等で潤滑する
ことが考えられるが第１図に示すような形状のシールリ
ングではピストンの往復運動にともない潤滑剤の一部が
シリンダ内に引きこされ、内部のカスを汚染させる恐れ
がある。However, such a sealing mechanism has the following drawbacks. In other words, in order to make the resin ring 3 airtight with the cylinder 4, a certain amount of tightening margin is given to the O-ring, but this increases the sliding resistance of the piston and increases the wear of the resin sliding ring. The problem is that it is easy. As a countermeasure to this problem, it is possible to lubricate the resin sliding ring part with grease or the like, but with a seal ring shaped like the one shown in Figure 1, some of the lubricant is drawn into the cylinder as the piston reciprocates. , there is a risk of contaminating the internal debris.

〔発明の目的〕[Purpose of the invention]

この発明は上述した従来装置の欠点を改良したもので、
被作動カスの漏洩防止、摩擦力の減少詮よび潤滑剤の散
逸防止を実現することのできる密封機構を提供すること
を目的とする。This invention improves the drawbacks of the conventional device mentioned above.
The object of the present invention is to provide a sealing mechanism that can prevent leakage of actuated scum, reduce frictional force, and prevent lubricant from dissipating.

〔発明の概要〕[Summary of the invention]

本発明はシールリングを少なくとも２本以上設け、この
シールリングにはさまれた空間に潤滑剤を封じ込む形式
を持つ。また特殊な形状のシールリングを用い、前記し
た目的を達成している。The present invention has a type in which at least two seal rings are provided and a lubricant is sealed in a space between the seal rings. Additionally, a specially shaped seal ring is used to achieve the above objectives.

〔発明の効果〕〔Effect of the invention〕

本発明によれば従来無潤滑で用いていたシール材をグリ
ス等で潤滑するため耐摩耗性の向上および摩擦抵抗の低
下が計れる。また／−シリンダを複数で用ることにより
シリンダ内部への潤滑剤の浸入を防ぐことができる。According to the present invention, since the sealing material, which was conventionally used without lubrication, is lubricated with grease or the like, it is possible to improve wear resistance and reduce frictional resistance. Also, by using a plurality of cylinders, it is possible to prevent lubricant from penetrating into the cylinders.

〔発明の実施例〕[Embodiments of the invention]

本発明の実施例を第２図に示す。 An embodiment of the invention is shown in FIG.

ビストノ５ｖ′ｃ設けられた非対称断面形状を持つシー
シリンダ７お↓び７′を図示のように対向させて配置１
’：ｊ　Ｌ　、この２つのシーシリンダ間に潤滑剤を充
填し−Ｃｓ：ｔ”ｄ圧側に設けられた７′の７−シリン
ダには潤滑剤がシリンダ内部へ侵入することを防止する
ｉ残油を侍だぜ、−また７のシーシリンダｒこ膨張エン
ジン内のガスを密封する機能イｃ持たゼ°ている。The sea cylinders 7 and 7' having an asymmetrical cross-sectional shape provided with a biston hole 5v'c are arranged 1 so as to face each other as shown in the figure.
':j L, lubricant is filled between these two sea cylinders, and -Cs:t"dThe 7-cylinder of 7' installed on the pressure side has an i-remaining part that prevents the lubricant from entering the inside of the cylinder. Oil is a samurai, and the 7 sea cylinders have the function of sealing the gas inside the expansion engine.

ノなわら図のような１ｔｌｉ　’ｌ酊ル状を持つシーシ
リンダを祠清ｒＩＩＩ充哨部をψ、Ｌぴんで対称形に配
置することＶこより、ピストンの往復動Ｖごともないｔ
閏滑剤が散逸するのを防ぎかつシールリングと／リンダ
６との摩擦を低減することができる。In addition, by arranging the sea cylinder having a hollow shape as shown in the figure with the filling part symmetrically with ψ and L pins, there is no reciprocating movement of the piston.
It is possible to prevent the lubricant from dissipating and reduce the friction between the seal ring and the cylinder 6.

４１ンｌ　ｕｊｌの１１ｉＩ甲／ｉ：説、間第１図Ｃ１
Ｊ、従来技術によるドライ潤滑式の密封機構の斜視図、
第２図は本発明の実施例の一例である斜視図である。41nl ujl's 11iI A/i: theory, Figure 1 C1
J. Perspective view of a dry lubricated sealing mechanism according to the prior art;
FIG. 2 is a perspective view of an example of an embodiment of the present invention.

Claims (1)

【特許請求の範囲】[Claims] ピストンとシリンダとこのシリンダ内の気体が漏れる仁
とを防止する７−シリンダからなるレシプロエンジンに
おいて、シールリングを少なくとも２本以上装着し、そ
のシールリングの間に潤滑剤を封入してなることを特徴
とする密封機構。In a reciprocating engine consisting of a piston, a cylinder, and a 7-cylinder cylinder that prevents gas from leaking inside the cylinder, at least two seal rings are installed, and a lubricant is sealed between the seal rings. Features a sealing mechanism.
JP59024261A 1984-02-14 1984-02-14 Sealing mechanism Pending JPS60169657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59024261A JPS60169657A (en) 1984-02-14 1984-02-14 Sealing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59024261A JPS60169657A (en) 1984-02-14 1984-02-14 Sealing mechanism

Publications (1)

Publication Number Publication Date
JPS60169657A true JPS60169657A (en) 1985-09-03

Family

ID=12133290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59024261A Pending JPS60169657A (en) 1984-02-14 1984-02-14 Sealing mechanism

Country Status (1)

Country Link
JP (1) JPS60169657A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013174394A (en) * 2012-02-24 2013-09-05 Sumitomo Heavy Ind Ltd Ultra-low temperature freezer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338850A (en) * 1976-09-22 1978-04-10 Toyota Motor Corp Oilless piston construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338850A (en) * 1976-09-22 1978-04-10 Toyota Motor Corp Oilless piston construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013174394A (en) * 2012-02-24 2013-09-05 Sumitomo Heavy Ind Ltd Ultra-low temperature freezer

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