Epicyclic gear system

Details Epicyclic gear system Epicyclic gear system

2006-02-07

2006-02-07

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

Planetary gearing or element

Toothed planet pinion has smooth bearing surface engaging...

C475S348000

Reexamination Certificate

active

06994651

ABSTRACT:
An epicyclic gear system has a sun gear, a ring gear, and planet gears between the sun and ring gears. In addition, it has a carrier including a carrier flange offset axially from the planet gears and carrier pins that project from the flange into the planet gears, each with a shank anchored to the flange, a head remote from the flange, and a groove between the shank and head. Between the planet gears and the carrier pins are bearings, each including an inner race and rollers between the inner race and planet gear. Whereas the carrier pins are cantilevered from the carrier flange, the inner races are cantilevered from the heads of the carrier pins. The grooves in the pins enhance pin deflection, so that the axes about which the planet gears rotate remain parallel to the central axis of the system.

REFERENCES:
patent: 3178966 (1965-04-01), Wildhaber
patent: 3303713 (1967-02-01), Hicks
patent: 3943787 (1976-03-01), Hicks
patent: 3964334 (1976-06-01), Hicks
patent: 3983764 (1976-10-01), Hicks
patent: 4236696 (1980-12-01), Hicks et al.
patent: 4616520 (1986-10-01), Ehrlinger et al.
patent: 4882950 (1989-11-01), Gausrab et al.
patent: 5494358 (1996-02-01), Dougherty
patent: 5558594 (1996-09-01), Lefranc et al.
patent: 6024851 (2000-02-01), Radhakrishnan
patent: 6099432 (2000-08-01), Shirokoshi
patent: 2003/0008748 (2003-01-01), Fox
patent: 2003/0123984 (2003-07-01), Wilde et al.
patent: 682354 (1939-10-01), None
patent: 2442588 (1976-03-01), None
patent: 19706686 (1998-08-01), None
patent: 0054280 (1982-06-01), None
patent: 57045636 (1982-03-01), None
patent: 03002891 (2003-01-01), None
patent: WO03002891 (2003-01-01), None
U.S. Appl. No. 10/481,708, filed Dec. 22, 2003, Fox.
Bedford, L.A.W., et al, The 3MW Wind Turbine Project on Orkney 1981-1995, 1996, Title Page, Fig. 1 and Section 9.

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