JPS60195363A - Lubrication device in thermodynamical reciprocating engine - Google Patents

Lubrication device in thermodynamical reciprocating engine

Info

Publication number
JPS60195363A
JPS60195363A JP5142284A JP5142284A JPS60195363A JP S60195363 A JPS60195363 A JP S60195363A JP 5142284 A JP5142284 A JP 5142284A JP 5142284 A JP5142284 A JP 5142284A JP S60195363 A JPS60195363 A JP S60195363A
Authority
JP
Japan
Prior art keywords
piston
power piston
displacer
power
rod
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
JP5142284A
Other languages
Japanese (ja)
Inventor
Koji Murozono
宏治 室園
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 JP5142284A priority Critical patent/JPS60195363A/en
Publication of JPS60195363A publication Critical patent/JPS60195363A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • 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
    • 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
    • F02G2253/00—Seals
    • F02G2253/03—Stem seals

Abstract

PURPOSE:To ensure lubrication between a power piston and a displacer piston, by making a hole in a piston pin in the power piston to communicate the inner wall of a cylinder and a through-hole in a displacer piston rod. CONSTITUTION:A displacer piston is coupled to a drive mechanism by means of a displacer piston rod 2 piercing through a power piston 5 and a connecting rod, and the power piston 5 is coupled to the drive mechanism by means of a power piston connecting rod 3. A through-hole 7 is formed in a piston pin 7 connecting between the power piston 1 and the power piston rod 3 in order to communicate the gap 8 between the inner wall of a cylinder and the piston pin 7 with the sliding section 19 of the displacer piston rod so that lubrication oil is made flow from the gap 18 to the sliding sectoin 19.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、スターリングサイクルまたは逆スターリング
サイクルに類似したサイクルを行なう熱力学往復動機関
の潤滑装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a lubricating device for a thermodynamic reciprocating engine which operates on a Stirling cycle or a cycle similar to a reverse Stirling cycle.

従来例の構成とその問題点 第１図蝶、逆スターリングサイクルに類似したサイクル
を行なう冷凍機（以下部に冷凍機と称す）に用いられて
いる従来の潤滑装置の一例を小すものである。The structure of the conventional example and its problems Figure 1 This is a small example of a conventional lubricating device used in a refrigerator (hereinafter referred to as a refrigerator) that performs a cycle similar to the reverse Stirling cycle. .

同図において、ディスプレーサ１はディスプレーサロッ
ド２、ディスプレーサコンロット３ｋ　介してクランク
シャフト４に」土納されている。ピストン５は、ピスト
ンコンロノド６を介してクランクシャフト４に連結畑れ
ている。ピストン６とピストくコンロノド６とはピスト
ンピン７にて連結されている。８，９はそれぞれ電動機
のステーりおよびロータであり、ロータ９はクランクシ
ャフト４Ｖこ圧入されている。In the figure, a displacer 1 is mounted on a crankshaft 4 via a displacer rod 2 and a displacer connecting rod 3k. The piston 5 is connected to the crankshaft 4 via a piston connecting rod 6. The piston 6 and the piston throat 6 are connected by a piston pin 7. 8 and 9 are a stay and a rotor of the electric motor, respectively, and the rotor 9 is press-fitted into the crankshaft by 4V.

クランクシャフト４の一端にはオイルポンプ１０が配設
されており、このオイルポンプ１ｏによりクランク室１
１内の潤滑油１２全吸入管１３より吸い土け、吐出管１
４に吐出して連通口１６よりシリンダ内の摺動部を潤滑
する。An oil pump 10 is disposed at one end of the crankshaft 4, and this oil pump 1o supplies the crank chamber 1.
Lubricating oil 12 in 1 is suctioned from all suction pipes 13, discharge pipe 1
4 and lubricates the sliding parts inside the cylinder through the communication port 16.

この冷凍機において、ディスフッーサロソド２とピスト
ン５との摺動部１６の潤滑は潤滑油１２のはねあけで行
なうため確実な潤滑が行なわれず、摺動部１６が焼付く
恐れがあるという欠点を有していた。In this refrigerator, the sliding part 16 between the diffuser rod 2 and the piston 5 is lubricated by splashing lubricating oil 12, so that reliable lubrication is not performed and there is a risk that the sliding part 16 may seize. It had drawbacks.

発明の目的 本発明は、従来の熱力学往復動機関の潤滑装置に見られ
る上記欠点を解消するもので、簡単な構造でピストンと
ディスプレーサロッド間の潤滑全確実ＶＣ行なうこと全
目的とするものである。OBJECTS OF THE INVENTION The present invention is intended to eliminate the above-mentioned drawbacks found in conventional lubricating devices for thermodynamic reciprocating engines, and its entire purpose is to provide reliable VC lubrication between a piston and a displacer rod with a simple structure. be.

発明の構成 本発明の熱力学往復動機関の潤滑装置は、低温側作動空
間と高温側作動空間を有するシリンダ内に、１１１記各
作動空間の容積を連続的に変化させる・ディスプレーサ
ピストン及びパワーピストンを配設し、ディスプレーサ
ピストンはパワーピストン内を貫通するディスプレーサ
ビストンロノドトティスプレーサピストンコンロソドを
介しで駆動機構に連絡し、パワーピストンはパワーピス
トンコンロノド全弁して駆動機構に連絡する熱力学往復
動機関を構成し、前記パワーピストンとパワーピストン
コンロノドと全連結するピストンピンに長手方向に貫通
する大全あけ１＠記シリンダの内壁と、前記ピストンピ
ンのシリンダ内壁に面する端面との間に空間を設け、こ
の空間とパワーピストン内のディスプレーサピストンロ
ッドが貫通する穴とを連通させたものである。Composition of the Invention The lubricating device for a thermodynamic reciprocating engine of the present invention includes a cylinder having a low-temperature side working space and a high-temperature side working space, and continuously changing the volume of each working space described in 111. Displacer piston and power piston. The displacer piston communicates with the drive mechanism via the displacer piston connector that penetrates inside the power piston, and the power piston communicates with the drive mechanism through the power piston connector. A large opening (1) extending longitudinally through a piston pin constituting a dynamic reciprocating engine and fully connecting the power piston and the power piston connecting rod, and an end face of the piston pin facing the cylinder inner wall. A space is provided in between, and this space is communicated with a hole through which a displacer piston rod in the power piston passes.

実施例の説明 以下、本発明をその一実施例を示す添付図面の第２図、
第３図全参考に説明する。第２図は本発明の一実施例に
おける潤滑装置を具備した冷凍機の縦断面図、第３図は
第２図Ａ部の拡大断面図である。なお本実施例を説明す
るに当り、第１図に示す従来のものと同一部材について
は同一番号を付して、説明は省略する。DESCRIPTION OF THE EMBODIMENTS The present invention will now be described with reference to FIG. 2 of the accompanying drawings showing one embodiment thereof.
The explanation will be given with full reference to Figure 3. FIG. 2 is a longitudinal sectional view of a refrigerator equipped with a lubricating device according to an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of section A in FIG. In explaining this embodiment, the same members as those in the conventional structure shown in FIG. 1 are designated by the same numbers, and the explanation thereof will be omitted.

同図において、ピストンピン７にＵＪ’を通入１７がお
いており、これにより小空間１８と潤滑部１９とは連通
している。潤滑油は、連通口１６よりシリンダ内に供給
され、ピストン５の往復動により空間１８に貯留される
。ここでφ間１８のガスはほとんど速度を持たないのに
対し、摺動部１９のクリアランスは小ざいので、この部
分のガスの速度わ１デイスプレーサロツド２とピストン
５との相対速度にほぼ比例する値をとるため、空間１８
のガス圧力のほうが摺動部１９のガス圧力よりも高くな
り、潤滑油は空間１８より矢印Ｂの方向に流れる。In the same figure, the piston pin 7 has an insertion 17 through which UJ' is inserted, so that the small space 18 and the lubricating part 19 communicate with each other. Lubricating oil is supplied into the cylinder through the communication port 16 and is stored in the space 18 by the reciprocating motion of the piston 5. Here, the gas between φ 18 has almost no velocity, whereas the clearance of the sliding part 19 is small, so the velocity of the gas in this part is almost proportional to the relative velocity between the displacer rod 2 and the piston 5. space 18 to take the value
The gas pressure at is higher than the gas pressure at the sliding portion 19, and the lubricating oil flows from the space 18 in the direction of arrow B.

このように潤滑油を摺動部へ供給することが可能となる
ので、ピストンとディスプレーサロッドの潤滑を確実に
行なうことができる。Since lubricating oil can be supplied to the sliding parts in this way, the piston and the displacer rod can be reliably lubricated.

発明の効果 上記実施例より明らかなように、本発明の熱力学往復動
機関の潤滑装置は、パワーピストンとパワーピストンコ
ンロノドとを連結するピストンピン面との間に空間を設
け、この空間とパワーピストン内のディスプレーサピス
トンロッドが貫通する穴とを連通σせたもので、簡単な
構造でピストンとディスプレーサロッド間の潤滑を確実
に行なえる等の利点を有する。なお本実施例においては
冷凍機についてのみの説明全行なったが、原動機として
用いる場合も同様の効果が得られる。Effects of the Invention As is clear from the above embodiments, the lubricating device for a thermodynamic reciprocating engine of the present invention provides a space between the piston pin surface connecting the power piston and the power piston connecting rod, and It communicates with the hole through which the displacer piston rod in the power piston passes, and has advantages such as a simple structure and reliable lubrication between the piston and the displacer rod. In this embodiment, only the refrigerator has been explained, but the same effect can be obtained when the refrigerator is used as a prime mover.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の潤滑装置を具備した冷凍機の縦断面図、
第２図は本発明の一実施例における潤滑装置を具備した
冷凍機の縦断面図、第３図は第２図Ａ部の拡大断面図で
ある。 １゛　・ディスプレーサ、２　・・・・ディスプレーサ
ロッド、３・・・・ディスプレーザコンロノド、４°゛
゛クランクンヤフト、６゛ピストン、６　°°°ピスト
ンコンロッド、７　°゛°°ヒストンピン７　゛゛ピス
トンピン貫通穴、１８　゛’空間、１９　゛摺動部。Figure 1 is a longitudinal cross-sectional view of a refrigerator equipped with a conventional lubrication device.
FIG. 2 is a longitudinal sectional view of a refrigerator equipped with a lubricating device according to an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of section A in FIG. 1゛・Displacer, 2...Displacer rod, 3...Displacer connecting rod, 4°゛゛Crank shaft, 6゛piston, 6 °°°Piston connecting rod, 7°゛°°Histon pin 7゛゛Piston Pin through hole, 18'' space, 19'' sliding part.

Claims (1)

【特許請求の範囲】 低温側作動空間と高温側作動空間金有するシリンダ内に
、前記各作動空間の容積を連続的に変化させるディスプ
レーサピストン及びパワーピストンを配設し、ディスプ
レーサピストンはパワーピストン内を貫通す不ディスプ
レーサピストン口。 ドとディステレーザピストンコンロノドを介して駆動機
構に連絡し、パワーピストンはパワーピストンコンロノ
ドを介して駆動機構に連絡する熱力学往復動機関を構成
し、ｉｉｌ記パワーピストンとパワーピストンコンロノ
ドとを連結するピストンピンに長手方向に貫通する穴を
あけ、前記シリンダの内壁と、前記ピストンピンのシリ
ンダ内壁に面する端面とのｍｌに空間を設け、この空間
とパワーピストン内のティスプレーサビストンロッドが
貫通する穴とを連通させた熱力学往復動機関の潤滑装置
。[Claims] A displacer piston and a power piston that continuously change the volume of each of the working spaces are disposed in a cylinder having a low-temperature side working space and a high-temperature side working space, and the displacer piston moves inside the power piston. Penetrating non-displacer piston port. The power piston constitutes a thermodynamic reciprocating engine that communicates with the drive mechanism via the power piston connecting rod, and the power piston and the power piston connecting rod communicate with the drive mechanism through the power piston connecting rod. A hole is made that passes through the piston pin in the longitudinal direction, and a space is provided between the inner wall of the cylinder and the end surface of the piston pin facing the cylinder inner wall, and this space and the tip plate rust in the power piston are connected to each other. A lubricating device for a thermodynamic reciprocating engine that communicates with a hole through which a rod passes.
JP5142284A 1984-03-16 1984-03-16 Lubrication device in thermodynamical reciprocating engine Pending JPS60195363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5142284A JPS60195363A (en) 1984-03-16 1984-03-16 Lubrication device in thermodynamical reciprocating engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5142284A JPS60195363A (en) 1984-03-16 1984-03-16 Lubrication device in thermodynamical reciprocating engine

Publications (1)

Publication Number Publication Date
JPS60195363A true JPS60195363A (en) 1985-10-03

Family

ID=12886485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5142284A Pending JPS60195363A (en) 1984-03-16 1984-03-16 Lubrication device in thermodynamical reciprocating engine

Country Status (1)

Country Link
JP (1) JPS60195363A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434422A (en) * 2011-12-14 2012-05-02 中联重科股份有限公司 Pumping device and lubricating method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434422A (en) * 2011-12-14 2012-05-02 中联重科股份有限公司 Pumping device and lubricating method thereof
CN102434422B (en) * 2011-12-14 2015-05-13 中联重科股份有限公司 Pumping device and lubricating method thereof

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