Title:
ULTRATHIN PUMP
Document Type and Number:
Japanese Patent JP3849491
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an ultrathin pump realizing high performance, the long service life, and noise reduction while attaining an ultrathin type.
SOLUTION: This ultrathin pump is provided with: a ring-shaped impeller 1 formed of a large number of blades on the outer periphery, and having a rotor magnet on the inner periphery; a motor stator 4 arranged on the inner peripheral side of the rotor magnet; and a pump casing 5 forming a suction port and a delivery port, housing the ring-shaped impeller 1 inside, and forming a cylindrical part to be arranged between the motor stator 4 and the rotor magnet. The pump is characterized in that the cylindrical part rotatably journals the ring-shaped impeller 1, and a thrust dynamic pressure generating groove 12 is arranged on a thrust plate oppositely arranged on both side surfaces of the ring-shaped impeller 1 or both side surface of the pump casing.
Inventors:
Yasushi Niwatsukino
Yoichi Yadosato
Aizono Yumitsu
Yoichi Yadosato
Aizono Yumitsu
Application Number:
JP2001330463A
Publication Date:
November 22, 2006
Filing Date:
October 29, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
F04D13/06; F04D29/047; F04D5/00; F04D17/04; F04D29/04; F04D29/046; F16C17/10; (IPC1-7): F04D13/06; F04D5/00; F04D17/04; F04D29/04; F16C17/10
Domestic Patent References:
| JP2001132699A | ||||
| JP3059676U |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano