F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 57/08 (2006.01) F03D 11/02 (2006.01) F16H 1/28 (2006.01) F16H 55/17 (2006.01)
Patent
CA 2702709
The present invention provides a planetary gear transmission unit (10) comprising a ring gear (17), a sun gear (18) and a planet carrier (19) driving a plurality of planet shafts (12) onto which planet gears (11) are rotatably mounted by means of planet bearings (13). The planet shafts are flexpin shafts (12) and each flexpin shaft (12) comprises a pair of planet gears (11), each planet gear (11) of the pair being of the single helical type having a helix angle opposite to that of the other planet gear (11) of the pair. The present invention furthermore provides a gearbox (20) comprising a planetary gear transmission unit (10) according to embodiments of the invention and a wind turbine comprising such a gearbox (20).
Hansen Transmissions International Naamloze Vennootschap
Riches Mckenzie & Herbert Llp
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