TW200720552A - Pump - Google Patents

Pump

Info

Publication number
TW200720552A
TW200720552A TW095135487A TW95135487A TW200720552A TW 200720552 A TW200720552 A TW 200720552A TW 095135487 A TW095135487 A TW 095135487A TW 95135487 A TW95135487 A TW 95135487A TW 200720552 A TW200720552 A TW 200720552A
Authority
TW
Taiwan
Prior art keywords
impeller
disposed
cylinder part
partition plate
dynamic pressure
Prior art date
Application number
TW095135487A
Other languages
Chinese (zh)
Other versions
TWI319049B (en
Inventor
Tetsuya Fukuda
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Publication of TW200720552A publication Critical patent/TW200720552A/en
Application granted granted Critical
Publication of TWI319049B publication Critical patent/TWI319049B/zh

Links

Abstract

The invention is to attain high speed rotation while minimizing abrasion between a bearing and a shaft. A pump comprises: an impeller 1 in which a lot of blades 2 are disposed to an outer circumference of a cylinder part 1a and a rotor magnet 3 is disposed to an inner circumference of the cylinder part 1a; a motor stator 4 disposed on an inner circumferential side of the rotor magnet 3 to rotary drive the impeller 1; a partition plate 6 partitions between the impeller 1 and the motor stator 4 to be air-tight; a pump casing 5 having a suction port 9 sucking liquid and a discharge port 10 discharging liquid. A dynamic pressure generating groove 12 for generating dynamic pressure by the rotation of the impeller is disposed to at least one of an outer circumferential face 1A of the cylinder part 1a of the impeller 1 and a cylindrical face 6A of the partition plate 6 facing the outer circumferential face 1A.
TW095135487A 2005-09-26 2006-09-26 Pump TW200720552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005278584A JP2007085314A (en) 2005-09-26 2005-09-26 Pump

Publications (2)

Publication Number Publication Date
TW200720552A true TW200720552A (en) 2007-06-01
TWI319049B TWI319049B (en) 2010-01-01

Family

ID=37958755

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095135487A TW200720552A (en) 2005-09-26 2006-09-26 Pump

Country Status (3)

Country Link
JP (1) JP2007085314A (en)
CN (2) CN100516539C (en)
TW (1) TW200720552A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI386558B (en) * 2009-03-18 2013-02-21 Metal Ind Res & Dev Ct Drive and its bearings

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6150115B2 (en) * 2013-06-05 2017-06-21 日本電産株式会社 Motors and pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI386558B (en) * 2009-03-18 2013-02-21 Metal Ind Res & Dev Ct Drive and its bearings

Also Published As

Publication number Publication date
CN201003497Y (en) 2008-01-09
JP2007085314A (en) 2007-04-05
TWI319049B (en) 2010-01-01
CN100516539C (en) 2009-07-22
CN1940303A (en) 2007-04-04

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees