JPS5620868A - Seal device for reciprocating machine - Google Patents

Seal device for reciprocating machine

Info

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
Application number
JP9781679A
Other languages
Japanese (ja)
Other versions
JPS5912903B2 (en
Inventor
Hiroshi Shinofuji
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.)
MIKUNI JUKOGYO
MIKUNI JUKOGYO KK
Original Assignee
MIKUNI JUKOGYO
MIKUNI JUKOGYO KK
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 MIKUNI JUKOGYO, MIKUNI JUKOGYO KK filed Critical MIKUNI JUKOGYO
Priority to JP54097816A priority Critical patent/JPS5912903B2/en
Publication of JPS5620868A publication Critical patent/JPS5620868A/en
Publication of JPS5912903B2 publication Critical patent/JPS5912903B2/en
Expired legal-status Critical Current

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
JP54097816A 1979-07-30 1979-07-30 Shaft sealing device for reciprocating motors Expired JPS5912903B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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