公开(公告)号：US11326473B2

公开(公告)日：2022-05-10

申请号：US16719236

申请日：2019-12-18

Applicant: BorgWarner Inc.

Inventor： Erwin Perry Ellwood, III ,  Samuel Whitney Weldon ,  Donald Michael Kennedy

IPC: F01D25/16 ,  F01D25/04 ,  F16C19/18

Abstract: A turbocharger includes a shaft, a compressor wheel, a turbine wheel, and a bearing assembly. The bearing assembly includes an inner race coupled to the shaft, and first and second outer races spaced radially from the inner race. The bearing assembly also includes a first rolling element disposed between the first outer race and the inner race, and a second rolling element disposed between the second outer race and the inner race. The bearing assembly further includes a first biasing member coupled to the first outer race and configured to bias the first outer race toward the second outer race and against the first rolling element to preload the first rolling element, and a second biasing member coupled to the second outer race and configured to bias the second outer race toward the first outer race and against the second rolling element to preload the second rolling element.

公开(公告)号：US20210189907A1

公开(公告)日：2021-06-24

申请号：US16719236

申请日：2019-12-18

Applicant: BorgWarner Inc.

Inventor： Erwin Perry Ellwood, III ,  Samuel Whitney Weldon ,  Donald Michael Kennedy

IPC: F01D25/16 ,  F01D25/04 ,  F16C19/18

Abstract: A turbocharger includes a shaft, a compressor wheel, a turbine wheel, and a bearing assembly. The bearing assembly includes an inner race coupled to the shaft, and first and second outer races spaced radially from the inner race. The bearing assembly also includes a first rolling element disposed between the first outer race and the inner race, and a second rolling element disposed between the second outer race and the inner race. The bearing assembly further includes a first biasing member coupled to the first outer race and configured to bias the first outer race toward the second outer race and against the first rolling element to preload the first rolling element, and a second biasing member coupled to the second outer race and configured to bias the second outer race toward the first outer race and against the second rolling element to preload the second rolling element.