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1. (WO1998018190) ELECTRIC MOTOR FRAME SUITABLE FOR BEING COUPLED TO A PUMP

Pub. No.:    WO/1998/018190    International Application No.:    PCT/EP1997/005733
Publication Date: Apr 30, 1998 International Filing Date: Oct 17, 1997
IPC: F04D 13/02
F04D 29/10
F04D 29/62
H02K 5/12
Applicants: CALPEDA S.P.A.
FRIGHETTO, Gianfranco
Inventors: FRIGHETTO, Gianfranco
Title: ELECTRIC MOTOR FRAME SUITABLE FOR BEING COUPLED TO A PUMP
Abstract:
The present invention concerns an electric motor frame (1) suitable for being coupled to a pump, comprising a tubular body (2) suitable for housing at least one pack of stator core laminations (3) of said electric motor. Said frame is provided with a bottom wall (4), integral with the frame itself, at one end of said body. Said bottom wall is provided with at least one housing (5) suitable for receiving one bearing of the electric motor rotor on the inner side of the frame and with a plurality of holes (41) suitable for fixing a pump casing to said wall on the outer side. The outer side houses an insert (6) made of a material that does not deteriorate through the contact with the pump fluid and said insert (6) is provided with at leat one surface (62) for centering the pump casing and, in its central area, with a hole suitable for the passage of the driving shaft that supports the pump impeller and with a housing (7) suitable for receiving a mechanical seal.