JPH0361103B2 - - Google Patents
Info
- Publication number
- JPH0361103B2 JPH0361103B2 JP57164848A JP16484882A JPH0361103B2 JP H0361103 B2 JPH0361103 B2 JP H0361103B2 JP 57164848 A JP57164848 A JP 57164848A JP 16484882 A JP16484882 A JP 16484882A JP H0361103 B2 JPH0361103 B2 JP H0361103B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- back pressure
- chamber
- compression piston
- diaphragm
- 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.)
- Expired - Lifetime
Links
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 238000005057 refrigeration Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Description
【発明の詳細な説明】
この発明は、スターリングサイクル冷凍機のロ
ツドシールに関し、特に詳述すれば、ダイヤフラ
ムを用いてロツドシールをなすスターリングサイ
クル冷凍機のロツドシールに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rod seal for a Stirling cycle refrigerator, and more particularly to a rod seal for a Stirling cycle refrigerator that uses a diaphragm to form the rod seal.
スターリングサイクル冷凍機は、変位ピストン
により画定される膨脹室と、動作ピストンにより
画定される圧縮室とを、水冷熱交換器（高温側熱
交換器）、蓄冷器および低温側熱交換器を介して
連結し、両ピストンにクランク機構或いは斜板機
構により位相差のある作動を与え、作動ガスが等
温圧縮、等容変化、等温膨脹および等容変化を連
続的に行い冷凍を発生させる構成となつている。 A Stirling cycle refrigerator connects an expansion chamber defined by a displacement piston and a compression chamber defined by an operating piston via a water-cooled heat exchanger (high temperature side heat exchanger), a regenerator, and a low temperature side heat exchanger. The two pistons are connected to each other and both pistons are operated with a phase difference by a crank mechanism or swash plate mechanism, and the working gas is configured to continuously undergo isothermal compression, isovolume change, isothermal expansion, and isovolume change to generate refrigeration. There is.
第１図に示すスターリングサイクル冷凍機１は
凸形圧縮ピストン２により圧縮室３とその凸形ピ
ストン２の小径部の膨脹ピストンにより膨脹室４
を形形成する。凸形ピストン２を互いに90度の位
相差となるよう４個配される。凸形ピストン２が
ロツド５を介して駆動機構６と連結される。ロツ
ド５は、中間部材７と駆動室８を作るハウジング
９の頂壁１０に設けたシールリング１１により駆
動室８側のオイルの圧縮室３側への洩れを防止さ
せている。実際、駆動室８から圧縮室３等の作動
ガス回路へのオイル洩れは、蓄冷器の目ずまりや
熱交換器の効率の低下を招き、冷凍出力の低下と
なる。尚、１２が水冷熱交換器であり、１３が蓄
冷器、１４が低温側熱交換器である。そして、１
５がコールドヘツドである。 The Stirling cycle refrigerator 1 shown in FIG.
form. Four convex pistons 2 are arranged with a phase difference of 90 degrees from each other. A convex piston 2 is connected via a rod 5 to a drive mechanism 6. The rod 5 prevents oil from the drive chamber 8 side from leaking to the compression chamber 3 side by a seal ring 11 provided on the top wall 10 of the housing 9 that forms the intermediate member 7 and the drive chamber 8. In fact, oil leakage from the drive chamber 8 to the working gas circuit such as the compression chamber 3 causes clogging of the regenerator and a decrease in the efficiency of the heat exchanger, resulting in a decrease in refrigeration output. Note that 12 is a water-cooled heat exchanger, 13 is a regenerator, and 14 is a low-temperature side heat exchanger. And 1
5 is the cold head.
前述したオイル洩れを防止するため、シールリ
ングの改良が種々成されているが、ロツドの表面
の油膜を介してロツドの往復時に生じるオイル洩
れを防止することができなく、冷凍能力を最適理
論値に近づけることが困難となつている。 In order to prevent the oil leak mentioned above, various improvements have been made to the seal ring, but it is not possible to prevent the oil leak that occurs during the reciprocation of the rod through the oil film on the surface of the rod, and the refrigeration capacity is reduced to the optimum theoretical value. It is becoming difficult to get close to.
本発明は、前述したロツドシールの改良を意図
したもので、基本的には、圧縮ピストンの背圧室
側にダイヤフラムを配し、又、ダイヤフラムの両
側部分での差圧を小さくさせる技術手段を用い、
ロツドの往復時の圧縮室へのオイルの洩れを防止
し且つダイヤフラムの寿命を長くさせる効果を得
ている。 The present invention is intended to improve the above-mentioned rod seal, and basically uses technical means to arrange a diaphragm on the back pressure chamber side of the compression piston and to reduce the differential pressure on both sides of the diaphragm. ,
This has the effect of preventing oil from leaking into the compression chamber when the rod reciprocates and prolonging the life of the diaphragm.
この発明によれば、複数気筒のスターリングサ
イクル冷凍機の圧縮ピストンと駆動機構を連結す
るロツドに対して圧縮ピストン背圧側と駆動室側
をシールする機構において、前記圧縮ピストンの
背圧側と駆動室とを隔離させるようにダイヤフラ
ムを前記ロツドと前記圧縮ピストンの内壁面とに
それぞれ固定し且つ前記各気筒の前記圧縮ピスト
ンの背圧側を互いに連通させたことを特徴とする
スターリングサイクル冷凍機のロツドシールが提
供される。 According to this invention, in the mechanism for sealing the back pressure side of the compression piston and the drive chamber side with respect to the rod connecting the compression piston and the drive mechanism of a multi-cylinder Stirling cycle refrigerator, the back pressure side of the compression piston and the drive chamber side are sealed. A rod seal for a Stirling cycle refrigerator is provided, characterized in that a diaphragm is fixed to the rod and an inner wall surface of the compression piston so as to separate the rods, and the back pressure side of the compression piston of each cylinder is communicated with each other. be done.
この発明の実施例を第２図を参照して説明す
る。圧縮ピストン２の背圧室１６に、その内周部
をロツド５に且つその外周部をシリンダ１７の内
壁面に連接したダイヤフラム１８を配す。ダイヤ
フラム１８は、ロツド５の往復動ストロークに充
分に追従する弾力性と大きさを有する。ダイヤフ
ラム１８によつて区画された背圧室１６の上部
は、各気筒共に、通路１９により常時連通し、
又、背圧室１６の下部は、又、各気筒共に通路２
０により常時連通する。このような通路１９，２
０が、圧縮ピストン２１の往復動に伴う背圧室１
６の容積変化による圧力変化を各気筒で吸収し、
ダイヤフラム１８の上下での圧力差を小さくさせ
る。 An embodiment of the invention will be described with reference to FIG. A diaphragm 18 whose inner circumference is connected to the rod 5 and whose outer circumference is connected to the inner wall surface of the cylinder 17 is disposed in the back pressure chamber 16 of the compression piston 2. The diaphragm 18 has a resiliency and size sufficient to follow the reciprocating stroke of the rod 5. The upper part of the back pressure chamber 16 divided by the diaphragm 18 is constantly communicated with each cylinder through a passage 19.
In addition, the lower part of the back pressure chamber 16 is also connected to the passage 2 for each cylinder.
0 for constant communication. Such a passage 19,2
0 is the back pressure chamber 1 due to the reciprocating movement of the compression piston 21
Each cylinder absorbs the pressure change due to the volume change of 6.
To reduce the pressure difference between the upper and lower sides of the diaphragm 18.
背圧室１６の上側の室は、オリフイス２１およ
びミストフイルター２２を有する通路２３によ
り、駆動室８に連通する。この連通もダイヤフラ
ム１８の上側の室の圧力が上昇するのを防止する
働きをする。 The upper chamber of the back pressure chamber 16 communicates with the drive chamber 8 through a passage 23 having an orifice 21 and a mist filter 22 . This communication also serves to prevent the pressure in the chamber above the diaphragm 18 from increasing.
尚、オリフイス２１は、通路１９よりガスの流
動抵抗が大きくなるように構成され、背圧室１６
の上部の室と駆動室８間のガスの移動が、通路１
９を介して移動する量より小さくなるように構成
されることはいうまでもない。 The orifice 21 is configured so that the gas flow resistance is greater than that of the passage 19, and the back pressure chamber 16
The movement of gas between the upper chamber and the drive chamber 8 is caused by passage 1
Needless to say, the structure is such that the amount of movement is smaller than the amount of movement through 9.
又、単気筒スターリングサイクル冷凍機の場合
は、バツフアタンクを配し、圧縮ピストンの背圧
室側をバツフアタンクに連通し、ダイヤフラムに
作用する差圧を小さくさせる。 In the case of a single cylinder Stirling cycle refrigerator, a buffer tank is provided, and the back pressure chamber side of the compression piston is communicated with the buffer tank to reduce the differential pressure acting on the diaphragm.
第１図は従来例のスターリングサイクル冷凍機
の断面図、第２図はこの発明の一例を示す断面図
である。
図中：２…圧縮ピストン、５…ロツド、６…駆
動機構、８…駆動室、１６…背圧室、１７…シリ
ンダ、１８…ダイヤフラム、１９，２０…通路。
FIG. 1 is a sectional view of a conventional Stirling cycle refrigerator, and FIG. 2 is a sectional view showing an example of the present invention. In the figure: 2... Compression piston, 5... Rod, 6... Drive mechanism, 8... Drive chamber, 16... Back pressure chamber, 17... Cylinder, 18... Diaphragm, 19, 20... Passage.
Claims (1)
縮ピストンと駆動機構とを連結するロツドに対し
て圧縮ピストン背圧側と駆動室側をシールする機
構において、前記圧縮ピストンの背圧側と駆動室
とを隔離させるようにダイヤフラムを前記ロツド
と前記圧縮ピストンシリンダの内壁面とにそれぞ
れ固定し且つ前記各気筒の前記圧縮ピストンの背
圧側を互いに連通させたことを特徴とするスター
リングサイクル冷凍機のロツドシール。1. In a mechanism that seals the back pressure side of the compression piston and the drive chamber side with respect to the rod that connects the compression piston and the drive mechanism of a multi-cylinder Stirling cycle refrigerator, the back pressure side of the compression piston and the drive chamber are separated. A rod seal for a Stirling cycle refrigerator, characterized in that a diaphragm is fixed to the rod and to an inner wall surface of the compression piston cylinder, respectively, and back pressure sides of the compression pistons of the respective cylinders are communicated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16484882A JPS5956056A (en) | 1982-09-24 | 1982-09-24 | Rod seal of stirling cycle refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16484882A JPS5956056A (en) | 1982-09-24 | 1982-09-24 | Rod seal of stirling cycle refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5956056A JPS5956056A (en) | 1984-03-31 |
| JPH0361103B2 true JPH0361103B2 (en) | 1991-09-18 |
Family
ID=15801065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16484882A Granted JPS5956056A (en) | 1982-09-24 | 1982-09-24 | Rod seal of stirling cycle refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956056A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61164961U (en) * | 1985-03-30 | 1986-10-13 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182376A (en) * | 1974-08-06 | 1976-07-19 | Kureha Chemical Ind Co Ltd | |
| JPS542572A (en) * | 1977-06-03 | 1979-01-10 | Whatman Reeve Angel Ltd | Improved filter medium pipe and its preparation |
| JPS57132522A (en) * | 1981-02-10 | 1982-08-16 | Teijin Ltd | Filter medium |
-
1982
- 1982-09-24 JP JP16484882A patent/JPS5956056A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182376A (en) * | 1974-08-06 | 1976-07-19 | Kureha Chemical Ind Co Ltd | |
| JPS542572A (en) * | 1977-06-03 | 1979-01-10 | Whatman Reeve Angel Ltd | Improved filter medium pipe and its preparation |
| JPS57132522A (en) * | 1981-02-10 | 1982-08-16 | Teijin Ltd | Filter medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5956056A (en) | 1984-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5317874A (en) | Seal arrangement for an integral stirling cryocooler | |
| US5293748A (en) | Piston cylinder arrangement for an integral Stirling cryocooler | |
| US5022229A (en) | Stirling free piston cryocoolers | |
| JPH0361103B2 (en) | ||
| JPH079001Y2 (en) | Cryogenic refrigerator | |
| US3859792A (en) | Hot-gas reciprocating apparatus with power control device | |
| JPS6113727Y2 (en) | ||
| JP2818169B2 (en) | Stirling engine | |
| JPS6141970Y2 (en) | ||
| JPS6226604Y2 (en) | ||
| JP3101448B2 (en) | Hot gas engine | |
| JPS6136144B2 (en) | ||
| JPS6136143B2 (en) | ||
| JPH09152212A (en) | Piston for external combustion engine | |
| JP2734634B2 (en) | Reciprocating refrigerator with built-in regenerator | |
| JP3022012B2 (en) | Hot gas engine | |
| JPH0319903B2 (en) | ||
| JPH0250384B2 (en) | ||
| JPH0654099B2 (en) | Heat exchanger for displacer type Stirling engine | |
| JPS6235046A (en) | Heat exchanger for stirling engine | |
| JPH06173763A (en) | Hot gas engine | |
| SU974063A1 (en) | Gas cryogenic machine | |
| JPH0754107B2 (en) | Stirling engine | |
| JPS6314045Y2 (en) | ||
| JPS59192652U (en) | thermodynamic reciprocating engine |