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挤压油膜阻尼器及包括其的航空发动机
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CN115992739B
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achieve damping
本发明提供了一种挤压油膜阻尼器及包括其的航空发动机,所述的挤压油膜阻尼器:油膜内环,所述油膜内环用于贴合轴承外环;油膜外环,所述油膜外环的内侧套设于油膜内环的外侧,所述油膜外环与所述油膜内环间存在径向间隙以容纳挤压油膜层;回油阀,所述回油阀设置于所述油膜外环的下端;所述回油阀与所述径向间隙相连通,所述回油阀在发动机工作时关闭,在发动机停机时打开。通过本发明的设置,所述挤压油膜阻尼器内部的滑油在发动机停机后被排出。当所述挤压油膜阻尼器于发动机停机后逐渐升温时,其中不再具有可发生结焦的滑油,从而从根本上解决了滑油的高温结焦问题。
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AECC COMML AIRCRAFT ENGINE CO LTD
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