-
公开(公告)号：US10190634B1
公开(公告)日：2019-01-29
申请号：US15646633
申请日：2017-07-11
Applicant: GM Global Technology Operations LLC
Inventor： Fanghui Shi , Dingfeng Deng , Ran Wu , Louis P. Begin , Yuli Huang
Abstract: A turbocharger including a housing and a rotary assembly disposed within the housing and including a turbine wheel and a compressor wheel attached to one another by a shaft. The rotary assembly being subject to aero-load in a lateral direction. A bearing is disposed in the housing and rotatably supports the shaft, the bearing including an inner bearing surface that engages the shaft and an outer bearing surface that engages the housing, the outer bearing surface having a pair of axially extending recessed grooves extending at least partially along the bearing. The pair of axially extending grooves being located perpendicular to the aero-load direction.
-
公开(公告)号：US20190277159A1
公开(公告)日：2019-09-12
申请号：US15916331
申请日：2018-03-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yuli Huang , Fanghui Shi , Yuchuan Liu , Bo Yang , Louis P. Begin
Abstract: A turbocharger assembly includes a center housing which defines a bore, a journal bearing, and a rotating assembly. The bore further defines primary and secondary annular grooves. The journal bearing may be disposed within the bore such that the annular groove encircles the journal bearing and feeds the fluid thereto. The rotating assembly includes a shaft, a turbine wheel and a compressor wheel. The turbine wheel is configured to be driven by the post-combustion gasses while the compressor wheel pressurizes the airflow for delivery to a combustion chamber. The shaft may be supported by one or more journal bearings for rotation within the bore about a longitudinal axis. The shaft includes a shaft surface which defines a standard region and a feature in a feature region. The feature is configured to generate a plurality of fictitious forces which stabilizes the turbocharger shaft.
-
Search Results
2
records
(took 0.011 seconds)
