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Title:
MOTOR DRIVE TYPE FLUID MACHINE, AND FREQUENCY CONVERTER USED IN THE SAME FLUID MACHINE
Document Type and Number:
Japanese Patent JP2005330970
Kind Code:
A
Abstract:

To provide a fluid machine, in which effective operation can be performed in accordance with fluid to be sucked without waste, in which further compactness and light weight are achieved, in which various power sources can be applied, in which power consumption is reduced in a case where there is no fluid to be discharged, and in which resistance to overload and constraint is strong to cause less starting failure (less constraint).

This fluid machine, in which fluid to be handled or fluid to be carried exists at an outer circumferential part of a motor stator, is provided with a motor frame 32 enclosing the outer circumferential part of the motor stator 31, a pump part 10 provided at one end of a motor shaft 16, a first cover 3 provided on the other end side of the motor shaft 16 to support a bearing 34, a frequency converter 36 provided on the counter-bearing side of the first cover 3, and a second cover 37 to contain the frequency converter 36 to the first cover 3.


Inventors:
KOBAYASHI MAKOTO
YAMAMOTO MASAKAZU
MIYAKE YOSHIO
YAGI KAORU
UEI KEITA
MIYAZAKI YOSHIAKI
IIJIMA KATSUJI
CHIYOUJIYA HAJIME
NIHONGI NAOTOSHI
MORIZUKI HIROSHI
Application Number:
JP2005202048A
Publication Date:
December 02, 2005
Filing Date:
July 11, 2005
Export Citation:
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Assignee:
EBARA CORP
EBARA DENSAN LTD
International Classes:
F04D15/00; F04D13/08; (IPC1-7): F04D13/08; F04D15/00
Attorney, Agent or Firm:
Isamu Watanabe
Shintaro Hotta