Epicyclic gear systems
AssigneeThe Timken Company
InventorGerald Fox
Life of this patent
Estimating the term…
Abstract
An epicyclic gear system (A, B), which is highly compact, yet capable of transferring substantial torque, includes a sun gear (2, 62), a ring gear (4, 64) around the sun gear, and planet gears (6, 8, 66, 68) organized in two rows between the sun and ring gears. In addition, the gear system has a carrier (10, 70) provided with one or two flanges (14, 72, 74) and flexible pins (20, 22, 80, 82) around which the planet gears revolve. The planet gears are mounted on the pins in a double cantilever arrangement to improve the mesh with the sun and ring gears and achieve better load distribution.
Claims20
1-18. (canceled)
An epicyclic gear system comprising:
- a sun gear;
- a ring gear located around the sun gear;
- first planet gears located between and engaged with the sun and ring gears in a first row;
- second planet gears located between and engaged with the sun and ring gears in a second row, with the second gears being displaced axially from the first gears;
- and
- a carrier having first pins on which the first planet gears rotate and second pins on which the second planet gears rotate, first and second pins being detached from each other.
An epicyclic gear system comprising:
- a sun gear;
- a ring gear located around the sun gear;
- first planet gears located in a row between the sun and ring gears and being engaged with the sun and ring gears;
- and
- second planet gears located in another row between the sun and ring gears and being engaged with the sun and ring gears;
- a carrier having a single flange and first and second pins anchored in and projecting from the flange, with the first pins projecting into the first planet gears so that the first gears revolve about the first pins and the second pins projecting into the second planet gears so that the second gears revolve about the second pins, the first and second pins being detached from each other.
An epicyclic gear system comprising:
- a sun gear;
- a ring gear located around the sun gear;
- first planet gears located in a row between the sun and ring gears and being engaged with the sun and ring gears;
- second planet gears located in another row between the sun and ring gears and being engaged with the sun and ring gears;
- and
- a carrier having a first flange located adjacent to the first planet gears and a second flange located adjacent to the second planet gears and further having first pins extended form the first flange into the first gears and second pins extended from the second flange into the second gears, all such that the first gears rotate about the first pins and the second gears rotate about the second pins, the first and second pins being detached from each other.
Dependencies are inferred from the claim text.