JPS5620868A - Seal device for reciprocating machine - Google Patents
Seal device for reciprocating machineInfo
- Publication number
- JPS5620868A JPS5620868A JP9781679A JP9781679A JPS5620868A JP S5620868 A JPS5620868 A JP S5620868A JP 9781679 A JP9781679 A JP 9781679A JP 9781679 A JP9781679 A JP 9781679A JP S5620868 A JPS5620868 A JP S5620868A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- cylinder
- distant piece
- seal device
- bellows
- 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.)
- Granted
Links
Landscapes
- Compressor (AREA)
- Details Of Reciprocating Pumps (AREA)
- Sealing Devices (AREA)
Abstract
PURPOSE: To prevent the leakage of gas out of the reciprocating machine such as a vacuum pump etc. by a method wherein a slight volume of gas leaked via a hole through which a piston rod is extended is enclosed in a bellows.
CONSTITUTION: The seal device 30 is arranged between a cylinder 10 of the vacuum pump 1 and an adjoining distant piece 40, the bellows 32 is arranged such that its one end 321 is fixed to an outer circumferential part 161 of the through-hole 17 of the piston rod via a fixing member 31 and further the other end 322 is fixed to a flange 34 attached to the distant piece 40 via a fixing member 33. The sealing is also made for a crank case chamber 80 at a symmetrical position of the cylinder 10 with respect to the distant piece 40 to provide a separate prevention of leakage and further alternative nonactive gas is fed into the distant piece. The gas in the cylinder and the crank case is detected and separated from the atmosphere.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54097816A JPS5912903B2 (en) | 1979-07-30 | 1979-07-30 | Shaft sealing device for reciprocating motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54097816A JPS5912903B2 (en) | 1979-07-30 | 1979-07-30 | Shaft sealing device for reciprocating motors |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5620868A true JPS5620868A (en) | 1981-02-26 |
JPS5912903B2 JPS5912903B2 (en) | 1984-03-26 |
Family
ID=14202262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54097816A Expired JPS5912903B2 (en) | 1979-07-30 | 1979-07-30 | Shaft sealing device for reciprocating motors |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5912903B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102913417A (en) * | 2012-12-05 | 2013-02-06 | 南通市威士真空设备有限公司 | Novel oilless vertical vacuum pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040370U (en) * | 1973-08-09 | 1975-04-24 | ||
JPS5148805A (en) * | 1974-10-24 | 1976-04-27 | Kogyo Gijutsuin | EKIATSUKUDOOFUKUDOHONPUNO SUTOROOKUSEIGYOSOCHI |
-
1979
- 1979-07-30 JP JP54097816A patent/JPS5912903B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040370U (en) * | 1973-08-09 | 1975-04-24 | ||
JPS5148805A (en) * | 1974-10-24 | 1976-04-27 | Kogyo Gijutsuin | EKIATSUKUDOOFUKUDOHONPUNO SUTOROOKUSEIGYOSOCHI |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102913417A (en) * | 2012-12-05 | 2013-02-06 | 南通市威士真空设备有限公司 | Novel oilless vertical vacuum pump |
Also Published As
Publication number | Publication date |
---|---|
JPS5912903B2 (en) | 1984-03-26 |
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