SUBMERGED PUMP AND IMPELLER FOR SUBMERGED PUMP

摘要

PROBLEM TO BE SOLVED: To provide a submerged pump capable of heightening a net pump head of a small water amount region (where a high pump head is required).;SOLUTION: A submerged electric pump 100 (submerged pump) includes: a motor 1; a rotational shaft 2 configured to transmit driving force of the motor 1; and an impeller 7 that has a plate-like part 71 extending in a direction crossing an axial direction (Z direction) of the rotational shaft 2 and formed into a plate shape, and blade parts 72 projecting from the plate-like part 71 along the axial direction, in which a flow passage 73 with a constant width is formed by making a clearance W between the blade parts 72 opposite to each other substantially constant, and that is connected to a motor 1 through the rotational shaft 2.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT