To provide a pump device which can suppress the occurrence of rust due to liquid passing through a shaft seal part to cause a bearing to be long life.
The pump device 10 includes: a pump 20; a rotary shaft 40 for transmitting rotation to an impeller 22 of the pump 20; an electric motor 31 for rotating the rotary shaft 40; a second bearing 60 provided between the electric motor 31 and the pump 20 in the rotary shaft 40, and supporting the rotary shaft 40; a mechanical seal 72 provided between the second bearing 60 and the pump 20 in the rotary shaft 40; and a water separator 90 provided between the second bearing 60 and the mechanical seal 72, and covering at least part of the second bearing 60 from a pump 20 side along a direction where the rotary shaft 40 extends.
FUJITA YASUTAKA
YANAGAWA HIDEAKI
HIRAIWA YUKI
| JPS58106590U | 1983-07-20 | |||
| JP2001073986A | 2001-03-21 | |||
| JP2007170325A | 2007-07-05 | |||
| JPS57168724U | 1982-10-23 | |||
| JPH0335296U | 1991-04-05 | |||
| JPS58106590U | 1983-07-20 | |||
| JP2001073986A | 2001-03-21 |
| US6422822B1 | 2002-07-23 | |||
| US6379127B1 | 2002-04-30 | |||
| US6422822B1 | 2002-07-23 | |||
| US6379127B1 | 2002-04-30 |
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
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