JPS57108485A - Rotary pump - Google Patents

Rotary pump

Info

Publication number
JPS57108485A
JPS57108485A JP18351980A JP18351980A JPS57108485A JP S57108485 A JPS57108485 A JP S57108485A JP 18351980 A JP18351980 A JP 18351980A JP 18351980 A JP18351980 A JP 18351980A JP S57108485 A JPS57108485 A JP S57108485A
Authority
JP
Japan
Prior art keywords
bearing
inner circumference
periphery
eccentric wheel
pump shaft
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
Application number
JP18351980A
Other languages
Japanese (ja)
Inventor
Kazuichi Ito
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP18351980A priority Critical patent/JPS57108485A/en
Publication of JPS57108485A publication Critical patent/JPS57108485A/en
Pending legal-status Critical Current

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  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE: To promote the efficiency of power transmission from a pump shaft to an eccentric wheel by constructing a clutch piece to turn round the center of a wedge roller along the periphery by the reaction force from the inner circumference of a bearing for giving an outward pushing force radially to the bearing.
CONSTITUTION: When an eccentric wheel 14 is eccentrically driven via an inner bearing 14 and a wedge member 16 in accordance with the rotation of a pump shaft 7, friction is given mainly between the inner circumference of the bearing 15 and a circular arc face 20 of a clutch piece 21. But, the clutch piece 21 is turned round the center of a wedge roller 18 along the periphery by the reaction force from the inner circumference of the bearing 15 to give a strong outward pushing force radially to the bearing 15. This construction promotes the efficiency of power transmission from the pump shaft 7 to the eccentric wheel 14. Since the circular arc face 20 on the periphery of the clutch 21 is in face-contact with the inner circumference of the bearing 15 to keep a large contact area, the friction between them can be greatly reduced.
COPYRIGHT: (C)1982,JPO&Japio
JP18351980A 1980-12-24 1980-12-24 Rotary pump Pending JPS57108485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18351980A JPS57108485A (en) 1980-12-24 1980-12-24 Rotary pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18351980A JPS57108485A (en) 1980-12-24 1980-12-24 Rotary pump

Publications (1)

Publication Number Publication Date
JPS57108485A true JPS57108485A (en) 1982-07-06

Family

ID=16137259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18351980A Pending JPS57108485A (en) 1980-12-24 1980-12-24 Rotary pump

Country Status (1)

Country Link
JP (1) JPS57108485A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498163A1 (en) * 1991-02-04 1992-08-12 Tecumseh Products Company Scroll compressor
JP2009243349A (en) * 2008-03-31 2009-10-22 Nidec Sankyo Corp Rotary diaphragm pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498163A1 (en) * 1991-02-04 1992-08-12 Tecumseh Products Company Scroll compressor
JP2009243349A (en) * 2008-03-31 2009-10-22 Nidec Sankyo Corp Rotary diaphragm pump

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