Title:
PUMP
Document Type and Number:
WIPO Patent Application WO/2011/037129
Kind Code:
A1
Abstract:
A pump configured in such a manner that liquid is less likely to leak to the outside of the pump chamber. The pump is provided with a pump case (4) which has a recess (7) formed in the center of a first surface of the pump case, a separation plate (8) which is joined to the entire first surface including the recess (7) of the pump case (4), and a casing (5) which is joined to the separation plate (8) and defines a pump chamber (6) in cooperation with the separation plate (8). The peripheral edge of the casing (5) is joined to one surface of the separation plate (8), said surface being that which is different from the surface to which the pump case (4) is joined. A blade wheel (2) is disposed in the pump chamber (6). The pump case (4) has provided thereinside a motor section (3) for rotationally driving the blade wheel (2) and is formed integrally with the separation plate (8). A rim (30) which protrudes to the outside from the outer peripheral edge of the first surface of the pump case (4) is provided to the entire periphery of the outer peripheral edge of the separation plate (8).
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Inventors:
TASAKI TETSUYA (JP)
Application Number:
PCT/JP2010/066385
Publication Date:
March 31, 2011
Filing Date:
September 22, 2010
Export Citation:
Assignee:
PANASONIC ELEC WORKS CO LTD (JP)
TASAKI TETSUYA (JP)
TASAKI TETSUYA (JP)
International Classes:
F04D13/06; F04D29/60
Domestic Patent References:
| WO2003033914A1 | 2003-04-24 |
Foreign References:
| JP2009074433A | 2009-04-09 | |||
| JP2009074434A | 2009-04-09 | |||
| JP2006233836A | 2006-09-07 | |||
| JPS58211594A | 1983-12-09 | |||
| JP2007278195A | 2007-10-25 |
Attorney, Agent or Firm:
NISHIKAWA, Yoshikiyo et al. (JP)
Yoshikiyo Nishikawa (JP)
Yoshikiyo Nishikawa (JP)
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