Patent ID: 7131823
Filing Date: 2006-11-07
Classification: F04D

Abstract:
1. A pump, comprising: a pumping chamber having an inlet and an outlet; an impeller disposed in said pumping chamber; a rotor of an electrical machine, said rotor being disposed in said pumping chamber and being connected to said impeller, said rotor having a central through-passage through which a flow path from said inlet to said outlet of said pumping chamber runs; a pump housing including a first part and a second part; said first part of said pump housing having a cylindrical section with first and second ends, an inwardly directed shoulder bounding said inlet at said first end of said cylindrical section and being configured in a funnel-shape directed toward said inlet, and an outwardly directed shoulder at said second end of said cylindrical section; and said second part of said pump housing forming a cover fitted to said outwardly directed shoulder.