| 摘要 |
<p>A stator assembly (1) for an electrical rotating machine, such as a high-speed 2-pole motor or generator. The stator assembly comprises a plurality of generally annular laminated core sections (2) arranged along the axis of the machine. Spacer pins (16) are provided between adjacent sections, thereby defining, between each adjacent pair of sections, a radially and circumferentially extending coolant duct (14) enabling coolant to flow between the interior region (25) of the assembly and its exterior surface. A plurality of axially extending channel members (8) are circumferentially spaced apart on the exterior surface to convey pressurised coolant to the ducts (14). Along the length of the assembly (1), alternate first slot openings (22), covered by the channel members (8), and alternate second slot openings (24), extending circumferentially between the channel members, are obturated, but in staggered relationship to each other. This arrangement enables increased economy of manufacture and increased cooling efficiency.</p> |
