COOLING RING GEAR

摘要

A ring gear for a planetary gear set has an annular gear body with a first annular side and a second annular side concentric about a center axis. The first annular side defines a toothed periphery. The gear body may include an annular groove in the first annular side proximate a first axial side of the gear body. An axial flow passage section may extend axially into the gear body from the annular groove without intersecting the first and second annular sides. A radial flow passage section extends radially into the gear body from the second annular side to the axial flow passage section.

主权项

1. A ring gear for a planetary gear set, comprising:
an annular gear body having a first annular side and a second annular side concentric about a center axis, the first annular side defining a toothed periphery; and a coolant flow passage formed in the annular gear body, the coolant flow passage including: an axial flow passage section extending axially into the gear body to the annular groove without intersecting the first and second annular sides; and a radial flow passage section extending radially into the gear body from the second annular side to the axial flow passage section.