To improve a pump performance without enlarging an angle between an intake hole and a drain hole in the rotating direction.
The subject washing-cum-drainage pump is characterized in that a washing pump runner and a drainage pump runner supported to a rotating shaft of a motor are disposed back to back in the both sides of a partition plate, the drainage pump runner is provided with a disk shaped vane base plate, a central boss part axially protruding in the center of the vane base plate in the opposite side to the partition plate, and a plurality of centrifugal vanes axially extending in the side of the vane base plate in the opposite side of the partition plate and extending from the central boss part in the outer circumferential direction, and the intake hole of an intake port is provided in the side of a drainage pump casing and in the opposite side to the partition plate.
KITAMURA HIROSHI
OWADA MICHIO
OKAWA TOMOHIRO
TAKEISHI TAKAAKI
Manabu Inoue