Patent ID: 7576458
Filing Date: 2009-08-18
Classification: B25F,H02K

Abstract:
1. A coolable housing jacket ( 1 ) for an electric motor, which is manufactured as a cast moulded part, is formed for receiving a concentric internal rotor/stator arrangement ( 23 ) together with windings and winding overhang ( 24 ) with a through-passage ( 3 ) that is symmetrical, concentric and/or coaxial with respect to a hypothetical motor axis of rotation, and which is penetrated by one or more cooling channels ( 2 , 2 a - h ) to form a coolant circuit, characterised by (a) a coating on the jacket inner faces including the channel internal walls via a cathodic dip-varnishing process and (b) the housing jacket being an integral, one piece casting within which are the cooling channels (