Turbocharger including bearing assembly

A turbocharger includes a shaft, a compressor wheel, a turbine wheel, and a bearing assembly including an inner ring, a first outer ring spaced apart from the inner ring, a second outer ring spaced apart from the inner ring, a first rolling element disposed between the first outer ring and the inner ring, and a second rolling element disposed between the second outer ring and the inner ring. The bearing assembly includes: a first biasing member configured to bias the first outer ring toward the second outer ring and against the first rolling element and preload the first rolling element with a preload force; and a second biasing member configured to bias the second outer ring toward the first outer ring and against the second rolling element and to preload the second rolling element with a second preload force. The first preloading force is different from the second preloading force. 一种涡轮增压器包括：轴、压缩机叶轮、涡轮机叶轮和轴承组件，该轴承组件包括内圈、与内圈间隔开的第一外圈、与内圈间隔开的第二外圈、设置在第一外圈与内圈之间的第一滚动元件和设置在第二外圈与内圈之间的第二滚动元件。该轴承组件包括：第一偏压构件，其被配置为将第一外