JPS5756679A - Reciprocating pump for extremely low temperature liquefied gas - Google Patents
Reciprocating pump for extremely low temperature liquefied gasInfo
- Publication number
- JPS5756679A JPS5756679A JP12911180A JP12911180A JPS5756679A JP S5756679 A JPS5756679 A JP S5756679A JP 12911180 A JP12911180 A JP 12911180A JP 12911180 A JP12911180 A JP 12911180A JP S5756679 A JPS5756679 A JP S5756679A
- Authority
- JP
- Japan
- Prior art keywords
- back pressure
- liquefied gas
- low temperature
- sealing device
- extremely low
- 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
Landscapes
- Reciprocating Pumps (AREA)
Abstract
PURPOSE: To send liquefied gas under high pressure by extending a cylinder of a pump to a normal temperature part, sufficiently sealing a piston rod at the normal temperature part so as to trap a liquefied gas running away into a back pressure part, and increasing a back pressure so as to prevent a gas leakage.
CONSTITUTION: A pump consists of a low temperature part 5 wherein a piston 1 is centered and a normal temperature part 6 wherein a crank 2 is centered. Those parts are placed considerably apart from each other. A relatively long piston rod 7 which connects the piston 1 and the crank 2 is surrounded by a cylinder 3 and a back pressure part 4 extending from it and a sealing device 8 is provided at an exit of the back pressure part 4. Because the temperature of a part of the sealing device 8 is considerably high in comparison with the temperature of an extremely low temperature gas, the sealing device 8 provides a sufficient sealing effect, so that reduction of a pumping function caused by low temperatures may be prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12911180A JPS5756679A (en) | 1980-09-19 | 1980-09-19 | Reciprocating pump for extremely low temperature liquefied gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12911180A JPS5756679A (en) | 1980-09-19 | 1980-09-19 | Reciprocating pump for extremely low temperature liquefied gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5756679A true JPS5756679A (en) | 1982-04-05 |
Family
ID=15001332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12911180A Pending JPS5756679A (en) | 1980-09-19 | 1980-09-19 | Reciprocating pump for extremely low temperature liquefied gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5756679A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6287796A (en) * | 1985-10-09 | 1987-04-22 | Showa Alum Corp | Aluminum tube for heat exchanger and heat exchanger |
US4955525A (en) * | 1986-04-25 | 1990-09-11 | Mitsubishi Aluminum Co., Ltd. | Heat exchanger and method of producing same |
-
1980
- 1980-09-19 JP JP12911180A patent/JPS5756679A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6287796A (en) * | 1985-10-09 | 1987-04-22 | Showa Alum Corp | Aluminum tube for heat exchanger and heat exchanger |
US4955525A (en) * | 1986-04-25 | 1990-09-11 | Mitsubishi Aluminum Co., Ltd. | Heat exchanger and method of producing same |
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