Patent ID: 8465253
Filing Date: 2013-06-18
Classification: F04D

Abstract:
1. In combination with a support surface, a pump housing of a rotary pump having: a pump chamber in which an impeller can rotate, an intake port, an output port similar to the intake port, the intake port and the output port having respective axially oppositely directed flanges centered on a flange axis parallel to the support surface, and respective unitary projections on the flanges each formed with a respective planar flat extending parallel to the flange axis and each in turn formed with a respective bore open at the respective flat and adapted to receive a respective fastener, the flats each forming a mounting point for securing the pump to the support surface with the flats bearing on the support surface, the flanges having on their sides facing the pump chamber unitary extensions that each extend from the flange axis to the outer edge of the respective flange along at least part of the side of the flange facing the pump chamber, the unitary extensions each having a face parallel to the support surface such that this face forms, together with the flat of the respective unitary projection, a combined abutment face that abuts the support surface.