Patent ID: 6268668
Filing Date: 2001-07-31
Classification: H02K

Abstract:
An electromagnetic generator comprising:a stator structure concentrically disposed to a rotor structure, said stator structure having a radially outer surface and a radially inner surface, and including stator core packets annularly disposed around the rotor and radial stator cooling ducts defined between said stator core packets, each of the stator cooling ducts extending radially between said outer stator surface and the inner stator surface proximate the rotor, said stator structure further defining a plurality of axially extending stator slots and tooth portions circumferentially between said slots, anda baffle structure having part circumferential portions for intercepting radial cooling air flow through said cooling ducts and redirecting said flow in a circumferential direction, wherein said baffle structure redirects flow circumferentially towards at least one stator coil disposed in a said stator slot, wherein said baffle structure further comprises radial portions so as to define a generally serpentine shaped space block traversing a perimeter of said stator slots and having at least one aperture for impinging cooling air onto said at least one stator coil disposed in said stator slot.