Patent · US Active

Gear transmission unit with planetary gears

US7806799B2 · kind B2 · utility

14Cited by

10References

13Claims

0Family size

Assignee

Hansen Transmissions International N.V. · BE

Inventors

Warren Smook · Randburg, ZA
Roger Bogaert · Dendermonde, BE

Key dates

Filing date	Nov 19, 2004
Grant date	Oct 5, 2010
Priority date	—
Expiry date	May 10, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A planetary type gear transmission unit (11) suitable for a wind turbine (10) includes sun (27), planet (25) and ring (24) gears and a planet carrier (41), the planet carrier (28) including a planet bogie plate (43) which supports and locates circumferentially spaced pairs of planet gears (25) a planetary type gear transmission unit (11) includes sun (27), planet (25) and ring gears (24) and a planet carrier(28), the planet carrier (28) including a planet bogie plate (43) which supports and locates circumferentially spaced pairs of planet gears (25), the sun (27) and ring gears (24) being each of the double helical type and each of the planet gears (47) of a pair being of the single helical type and of a helix angle opposite to that of the other planet gear (48) of the pair.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.