Invention Grant
- Patent Title: Turbocharger for an internal combustion engine with a hydrodynamic floating bearing
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Application No.: US16954314Application Date: 2018-12-21
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Publication No.: US11319835B2Publication Date: 2022-05-03
- Inventor: Ivan Injac
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Howard & Howard Attorneys PLLC
- Priority: DE102017223765.1 20171222
- International Application: PCT/US2018/067028 WO 20181221
- International Announcement: WO2019/126615 WO 20190627
- Main IPC: F01D25/16
- IPC: F01D25/16 ; F02B37/02 ; F01D25/18 ; F16C17/10 ; F16C33/10

Abstract:
The invention relates to a turbocharger for an internal combustion engine, comprising a housing (1) with an exhaust-gas-side and an air-side turbine blade (2), a shaft (3) connecting the turbine blades, and at least one radially acting rotary bearing for mounting the shaft (3), wherein the rotary bearing is designed as a hydrodynamic floating bearing, wherein a lubricant flows in a completely surrounding bearing gap (8) of the rotary bearing in the direction of rotation and has a local lubricant pressure, the bearing gap (8) has a contouring (10, 11, 10a, 11a, 12, 13, 14, 15) due to which the at least two local maxima (PM1, PM2) of the lubricant pressure are formed at two defined angular positions (W1, W2) in the direction of rotation.
Public/Granted literature
- US20210115813A1 TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE WITH A HYDRODYNAMIC FLOATING BEARING Public/Granted day:2021-04-22
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