JPS56143390A - Oil supply device for oil-revolved vacuum pump - Google Patents

Oil supply device for oil-revolved vacuum pump

Info

Publication number
JPS56143390A
JPS56143390A JP4660980A JP4660980A JPS56143390A JP S56143390 A JPS56143390 A JP S56143390A JP 4660980 A JP4660980 A JP 4660980A JP 4660980 A JP4660980 A JP 4660980A JP S56143390 A JPS56143390 A JP S56143390A
Authority
JP
Japan
Prior art keywords
oil
oil supply
revolved
vacuum pump
supply device
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
JP4660980A
Other languages
Japanese (ja)
Other versions
JPS6357633B2 (en
Inventor
Toshio Nemoto
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co Ltd
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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP4660980A priority Critical patent/JPS56143390A/en
Publication of JPS56143390A publication Critical patent/JPS56143390A/en
Publication of JPS6357633B2 publication Critical patent/JPS6357633B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: To decrease noises, by fitting an oil seal in an oil pocket in an oil supply device for an oil-revolved vacuum pump to reduce the vibration sound of vanes and the opening and closing sound of a discharge valve.
CONSTITUTION: When a rotor 6 is driven by a motor 2, air sucked through a suction port 15 is compressed and discharged through a discharge valve 10. At the same time, oil sucked through an oil supply hole 16 by pumping action in an oil pocket 14 is supplied to a rotor bearing 17 and a cylinder chamber 8. Since the oil supply to the cylinder chamber 8 is restricted by the clearance between the inside surface of the lip 20 of an oil seal 18 and the outside surface of a rotor shaft 7, the axial vibration of vanes 9 and the impact of the oil on a release valve 10 are reduced.
COPYRIGHT: (C)1981,JPO&Japio
JP4660980A 1980-04-08 1980-04-08 Oil supply device for oil-revolved vacuum pump Granted JPS56143390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4660980A JPS56143390A (en) 1980-04-08 1980-04-08 Oil supply device for oil-revolved vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4660980A JPS56143390A (en) 1980-04-08 1980-04-08 Oil supply device for oil-revolved vacuum pump

Publications (2)

Publication Number Publication Date
JPS56143390A true JPS56143390A (en) 1981-11-09
JPS6357633B2 JPS6357633B2 (en) 1988-11-11

Family

ID=12752038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4660980A Granted JPS56143390A (en) 1980-04-08 1980-04-08 Oil supply device for oil-revolved vacuum pump

Country Status (1)

Country Link
JP (1) JPS56143390A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63246486A (en) * 1987-04-01 1988-10-13 Anretsuto:Kk Multi-stage vacuum root blower
KR100442467B1 (en) * 1995-07-19 2004-09-18 라이볼트 바쿰 게엠베하 Oil-sealed vane-type rotary vacuum pump with oil supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63246486A (en) * 1987-04-01 1988-10-13 Anretsuto:Kk Multi-stage vacuum root blower
KR100442467B1 (en) * 1995-07-19 2004-09-18 라이볼트 바쿰 게엠베하 Oil-sealed vane-type rotary vacuum pump with oil supply

Also Published As

Publication number Publication date
JPS6357633B2 (en) 1988-11-11

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