| 摘要 |
PURPOSE: To ensure uniform cooling even when one of two heat-exchangers is stopped by closing one half of the end face for cooling gas only on one facing side thereof by means of a guide face disposed contiguously to the heat- exchanger. CONSTITUTION: A housing 9 is closed to define an inner space where a cooling gas flow circulates. Heat-exchangers 13, 14 are disposed on the upper side of an electric rotating machine under a cover face 12 while being aligned with a laminated core 7 of stator in the axial direction. Upper edge 16 of a barrier wall and the opposite side walls 10 of the housing 9 vertical to the barrier wall define a vertical cooling gas flow through face 17, through which warmed cooling gas is fed entirely to the heat-exchangers 13, 14. Guide faces 20, 21 are juxtaposed with respect to the longitudinal axis of the electric rotating machine while having opposite inclinations and extending obliquely from the upper edge 16 of respective barrier wall 15 to the cover face 12 on the upper side of the housing 9. Consequently, the guide face closes the axial passage to cooling gas through faces 18, 19 only on one side thereof.
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