US 12,135,077 B2
Friction bearing, and method for lubricating and cooling a friction bearing
Alexander Schütt, Rangsdorf (DE); Tobias Eberhardt, Heidesse (DE); Rens Douma, Berlin (DE); Uwe Kracht, Berlin (DE); Maximilian Prölss, Berlin (DE); Wolfram Kurz-Hardjosoekatmo, Kleinmachnow (DE); and Stephan Uhkötter, Berlin (DE)
Assigned to ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow (DE)
Filed by Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow (DE)
Filed on Aug. 5, 2022, as Appl. No. 17/882,170.
Claims priority of application No. 10 2021 122 156.0 (DE), filed on Aug. 26, 2021.
Prior Publication US 2023/0068219 A1, Mar. 2, 2023
Int. Cl. F16C 33/10 (2006.01); F16C 32/06 (2006.01); F16H 57/04 (2010.01); F16H 57/08 (2006.01)
CPC F16H 57/0479 (2013.01) [F16C 32/0651 (2013.01); F16C 33/101 (2013.01); F16C 33/1055 (2013.01); F16H 2057/085 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A friction bearing of a planetary gearbox, comprising:
a rotationally fixed first component and a second component rotatably connected thereto,
an oil feed pocket positioned on the first component and configured to direct oil into a bearing clearance between the first and second components,
the oil feed pocket having a group of ports opening into the oil feed pocket in a sole triangular configuration, as follows:
a first port connected to a first line opening into the oil feed pocket, and configured for directing the oil into the oil feed pocket,
a second port connected to a second line opening into the oil feed pocket, and configured for directing the oil into the oil feed pocket, the second port trailing the first port in a rotation direction of the second component and spaced apart from the first port in an axial direction of the friction bearing, and
a third port connected to a third line opening into the oil feed pocket, and configured for directing the oil into the oil feed pocket, the third port trailing the first port in the rotation direction of the second component and spaced apart from both the first port and the second port in the axial direction, with the first port being positioned between the second port and the third port in the axial direction, the first port, second port and third port forming the sole triangular configuration.