JPH0240102U - - Google Patents
Info
- Publication number
- JPH0240102U JPH0240102U JP11888588U JP11888588U JPH0240102U JP H0240102 U JPH0240102 U JP H0240102U JP 11888588 U JP11888588 U JP 11888588U JP 11888588 U JP11888588 U JP 11888588U JP H0240102 U JPH0240102 U JP H0240102U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder wall
- cylinder
- packing
- fluid
- close contact
- 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
- 238000012856 packing Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
Landscapes
- Sealing Devices (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Description
第１図は本考案に係る流体シリンダの一半部の
断面図、第２図は本考案の要部の拡大断面図、第
３図Ａ，Ｂは本考案に用いられるパツキングの動
作を説明する断面図、第４図は本考案に用いられ
る形状記憶合金リングの正面図、第５図Ａ，Ｂは
補助パツキング部分の他の例の異なる状態の断面
図である。
１０……流体シリンダ、１２……シリンダ壁、
１４……ピストン、１６……パツキング、３６…
…主パツキング部分、３８……形状記憶合金リン
グ、４０……補助パツキング部分。
Fig. 1 is a cross-sectional view of one half of the fluid cylinder according to the present invention, Fig. 2 is an enlarged sectional view of the main part of the present invention, and Fig. 3 A and B are cross-sectional views explaining the packing operation used in the present invention. 4 are front views of the shape memory alloy ring used in the present invention, and FIGS. 5A and 5B are sectional views of other examples of the auxiliary packing portion in different states. 10...Fluid cylinder, 12...Cylinder wall,
14... Piston, 16... Packing, 36...
...Main packing part, 38...Shape memory alloy ring, 40...Auxiliary packing part.
Claims (1)
に係合するピストンとから成り、前記ピストンは
前記シリンダ壁の内面に流体密に係合するパツキ
ングを有する流体シリンダにおいて、前記パツキ
ングは前記シリンダ壁に常に密接する主パツキン
グ部分と低温時には前記シリンダ壁に密接するが
高温時には前記シリンダ壁から離反するように形
状記憶合金リングによつて変位される補助パツキ
ング部分とから成つていることを特徴とする流体
シリンダ。 A fluid cylinder comprising a cylinder wall and a piston slidably engaged with an inner surface of the cylinder wall, the piston having a packing fluid-tightly engaged with the inner surface of the cylinder wall, the packing being in contact with the inner surface of the cylinder wall. A fluid characterized in that it consists of a main packing part that is always in close contact with the cylinder wall and an auxiliary packing part that is displaced by a shape memory alloy ring so that it is in close contact with the cylinder wall at low temperatures but separates from the cylinder wall at high temperatures. Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11888588U JPH0240102U (en) | 1988-09-12 | 1988-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11888588U JPH0240102U (en) | 1988-09-12 | 1988-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0240102U true JPH0240102U (en) | 1990-03-19 |
Family
ID=31363627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11888588U Pending JPH0240102U (en) | 1988-09-12 | 1988-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04191571A (en) * | 1990-11-26 | 1992-07-09 | Mitsubishi Cable Ind Ltd | Seal for low temperature |
-
1988
- 1988-09-12 JP JP11888588U patent/JPH0240102U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04191571A (en) * | 1990-11-26 | 1992-07-09 | Mitsubishi Cable Ind Ltd | Seal for low temperature |