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发明公开
CN107120191A 具有定心弹簧和挤压膜阻尼器的芯部差动轴承 无效 - 驳回

具有定心弹簧和挤压膜阻尼器的芯部差动轴承
摘要：
一种燃气涡轮发动机(10)的反转轴组件(38)包括能够沿第一方向绕着虚拟旋转轴线(34)旋转的外轴(32)、能够沿与第一方向相反的第二方向绕着虚拟旋转轴线(34)反转的内轴(31)、可旋转地连接两个轴(31,32)的差动轴承(50)、将内轴(31)连接于差动轴承(50)的定心弹簧(70)，以及差动轴承(50)与内轴(31)之间的挤压膜阻尼器(60)。
摘要（英）：

A counter-rotating shaft assembly (38) of a gas turbine engine (10) includes an outer shaft (32) rotatable in a first direction about a virtual rotational axis (34), an inner shaft (31) counter-rotatable about the virtual rotational axis (34) in a second direction that is opposite to the first direction, a differential bearing (50) rotatably connecting the two shafts (31, 32), a centering spring (70) connecting the inner shaft (31) to the differential bearing (50), and a squeeze film damper (60) between the differential bearing (50) and the inner shaft (31).

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