Invention Grant
- Patent Title: Planetary gearing
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Application No.: US16198172Application Date: 2018-11-21
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Publication No.: US11085523B2Publication Date: 2021-08-10
- Inventor: Michael Nique , Paul Gorenz , Christopher Campbell , Frank Wagner , Mark Spruce , Daren Ashmore
- Applicant: Rolls-Royce Deutschland Ltd & Co KG , Rolls-Royce plc
- Applicant Address: DE Blankenfelde-Mahlow; GB London
- Assignee: Rolls-Royce Deutschland Ltd & Co KG,Rolls-Royce plc
- Current Assignee: Rolls-Royce Deutschland Ltd & Co KG,Rolls-Royce plc
- Current Assignee Address: DE Blankenfelde-Mahlow; GB London
- Agency: Shuttleworth & Ingersoll, PLC
- Agent Timothy Klima
- Priority: DE102017127874.5 20171124,DE102017127876.1 20171124
- Main IPC: F16H57/08
- IPC: F16H57/08 ; F02C7/36 ; F16H57/04 ; F16H1/28 ; F16C23/04 ; F01D25/18

Abstract:
A planetary gearing includes a sun gear rotating about a rotation axis and driven by a sun shaft; planet gears driven by the sun gear, each planet gear having an axially forward face side and an axially rearward face side; a ring gear engaging the planet gears; and planet slide bearing pins, wherein respectively one planet slide bearing pin is arranged inside a planet gear forming a lubricated journal bearing. At an axially forward face side and/or axially rearward face side, each planet gear forms a recess that extends inside the planet gear starting from the face side, and the planet slide bearing pins respectively form one crowning at their abutment surface such that their outer diameter decreases from a maximum outer diameter to at least an axial end of the abutment surface and has a minimum at the axial end.
Public/Granted literature
- US20190162292A1 PLANETARY GEARING Public/Granted day:2019-05-30
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