Drainage pump

Details Drainage pump Drainage pump

F - Mech Eng,Light,Heat,Weapons

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F04D 1/00 (2006.01) D06F 39/08 (2006.01) F04D 7/04 (2006.01) F04D 29/22 (2006.01) F04D 29/42 (2006.01) F04D 29/70 (2006.01)

Patent

CA 2005118

ABSTRACT OF THE DISCLOSURE A drainage pump includes a pump casing having an inlet and an outlet, and an impeller accommodated in the casing and rotated by a driving motor. The impeller has a plate-like vane. A liquid flows from the inlet toward a front end portion of the vane along the axis of the vane, and is discharged from the outlet in a direc- tion substantially perpendicular to the axis of the vane. The front end portion of the vane has a convex shape, and therefore has an inclined portion which extends from a portion located on the axis of the vane to an outer peripheral edge thereof.

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