Wind turbine comprising a planetary gear
US6872049B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Mar 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/908
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wind turbine with a rotor, a nacelle and a tower. The nacelle comprises a planetary gear (4) with a planetary holder (5), on which the hub (6) of the rotor is rigidly secured, and which can be connected to the shaft of an electric generator. The planetary gear (4) comprises a ring gear (7) fixedly mounted on an engine frame (9) in the nacelle or on the member (8) rigidly connected to said frame. The planetary wheels (17a, 17b) of the planetary gear can run around a centrally arranged sun wheel (14) while engaging the latter. The sun wheel is optionally connected to a parallel gear (30). The planetary holder (5) is rotatably mounted in the ring gear (7) by means of at least two sets (17) of planetary twin wheels (17a, 17b). Each set of planetary twin wheels is mounted on a bogie shaft (19) on the planetary holder. Through an axially rearward collar (23) projecting beyond the ring gear, the planetary holder (5) is also rotatably arranged on the curved outer side (7b) of the ring gear (7) by means of an outer radial-axial-roller bearing (27). As a result, a wind turbine is obtained which is suited for generating very strong power and which is very compact and ensures a very advantag…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.