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Patent Searching and Data


Title:
自吸式ポンプ
Document Type and Number:
Japanese Patent JP5874131
Kind Code:
B2
Abstract:
The present invention is a self-priming pump incorporating an impeller coupled to the shaft of a drive motor between a rear casing coupled to the drive motor and a front casing which has an intake hole and a discharge hole and is formed with a U-shaped travel recess; wherein the impeller has an inner ring and an outer ring and a plurality of rotary blades extending radially between the inner ring and outer ring centred on the inner ring, the surface on one side in the direction of rotation of the rotary blades is formed with an inclined surface which is inclined at a predetermined angle from front to rear, and the rear-end part is formed with a pressure plate which partially obstructs the open space created between neighbouring rotary blades. The present invention has the advantageous effect that, despite a straightforward structure, it is possible to generate a large force of pressure on a fluid and so increase the discharge pressure and discharge volume and also reduce the frictional resistance resulting from the fluid flow, thereby increasing pumping efficiency.

Inventors:
Park, Jeuk
Application Number:
JP2012541013A
Publication Date:
March 02, 2016
Filing Date:
November 24, 2010
Export Citation:
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Assignee:
Park, Jeuk
International Classes:
F04D9/02; F04D5/00
Domestic Patent References:
JP2009079586A
JP2002081392A
JP5505010A
Attorney, Agent or Firm:
Takahisa Kimura