Appliance pump
First Claim
1. A pump, for a washing appliance including a wash chamber, comprising:
- a pump casing having a substantially cylindrical side wall, a bottom wall and a ceiling, the pump casing being adapted to receive water from said wash chamber;
an inlet and an outlet in the side wall spaced apart circumferentially about the side wall;
an inlet conduit at the inlet extending from the pump casing at a small angle above the horizontal;
a pump impeller in the casing adjacent the bottom wall, the pump impeller having vanes extending to the side wall;
whereinthe ceiling includes a downwardly extending dividing wall section extending radially from a central location to the side wall;
the dividing wall having an inlet side adjacent said inlet and an outlet side adjacent said outlet; and
the ceiling incorporating a ramped surface rising around said central location between the outlet side and the inlet side of the dividing wall, the ramped surface higher adjacent the inlet side than the outlet side;
the upper most periphery of the inlet being above or substantially flush with the ramped surface adjacent the inlet side of the dividing wall section so that when the impeller is not rotating, air inside the pump chamber will rise up the ramped surface through the inlet and up the inlet conduit.
1 Assignment
0 Petitions
Accused Products
Abstract
A pump for washing appliance is described. The pump has a pump casing in which an impeller is located. The pump casing has an inlet and outlet, and an inlet conduit extending from the inlet at a small angle above the horizontal. The ceiling includes a downwardly extending dividing wall section extending radially from a central location to a side wall of the casing. The dividing wall is positioned between the inlet outlet. The ceiling incorporates a ramped surface rising around the central location, between the outlet side and the inlet side of the dividing wall. The ramped surface is higher adjacent the inlet side than the outlet side of the dividing wall section so that when the impeller is not rotating, air inside the pump chamber will rise up the ramped surface through the inlet and up the inlet conduit.
-
Citations
19 Claims
-
1. A pump, for a washing appliance including a wash chamber, comprising:
-
a pump casing having a substantially cylindrical side wall, a bottom wall and a ceiling, the pump casing being adapted to receive water from said wash chamber; an inlet and an outlet in the side wall spaced apart circumferentially about the side wall;
an inlet conduit at the inlet extending from the pump casing at a small angle above the horizontal;a pump impeller in the casing adjacent the bottom wall, the pump impeller having vanes extending to the side wall;
whereinthe ceiling includes a downwardly extending dividing wall section extending radially from a central location to the side wall; the dividing wall having an inlet side adjacent said inlet and an outlet side adjacent said outlet; and the ceiling incorporating a ramped surface rising around said central location between the outlet side and the inlet side of the dividing wall, the ramped surface higher adjacent the inlet side than the outlet side; the upper most periphery of the inlet being above or substantially flush with the ramped surface adjacent the inlet side of the dividing wall section so that when the impeller is not rotating, air inside the pump chamber will rise up the ramped surface through the inlet and up the inlet conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification