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    • 7. 发明公开
    • Ram air fan motor cooling
    • Stauluftgebläsemotorkühlung
    • EP2409919A2
    • 2012-01-25
    • EP11174373.8
    • 2011-07-18
    • Hamilton Sundstrand Corporation
    • Hipsky, Harold W.Colson, Darryl A.
    • B64D13/00
    • B64D13/00B64D2013/0644F04D19/00F04D25/06F04D29/5806Y02T50/56
    • A ram air fan assembly (10) includes a ram air fan (12) disposed at a fan inlet (14) and a ram air fan motor (20) operably connected to the ram air fan (12). A blower (46) is operably connected to the ram air fan (12) and is configured to redirect a cooling flow (32) across the ram air fan motor (20) from a substantially axially directed flow to a substantially radially directed flow thereby increasing the cooling flow (32) across the ram air fan motor (20). A method of cooling a ram air fan assembly (10) includes urging a cooling flow (32) toward the ram air fan motor (20) and is directed across the ram air fan motor (20) thus removing thermal energy from the ram air fan motor (20). The cooling flow (32) proceeds across a blower (46) operably connected to the ram air fan motor (20), thus directing the cooling flow (32) substantially radially outwardly toward the fan inlet (14).
    • 冲压空气风扇组件(10)包括设置在风扇入口(14)处的冲压空气风扇(12)和可操作地连接到冲压风扇(12)的冲压空气风扇马达(20)。 鼓风机(46)可操作地连接到冲压空气风扇(12),并且构造成将冷却流(32)从基本上轴向流动地转向穿过冲压空气风扇马达(20)至基本上径向流动,从而增加 跨过冲压风扇马达(20)的冷却流(32)。 一种冷却冲压空气风扇组件(10)的方法包括将冷却流(32)推向冲压空气风扇马达(20)并被引导穿过冲压空气风扇马达(20),从而从冲压空气风扇 电动机(20)。 冷却流(32)横跨可操作地连接到冲压空气风扇马达(20)的鼓风机(46),从而将冷却流(32)大致向外朝向风扇入口(14)引导。