Patent ID: 8708863
Filing Date: 2014-04-29
Classification: F01D,F02C,F05D,F16H

Abstract:
1. A gear apparatus, comprising: an epicyclic gear train including a carrier supporting star gears that mesh with a sun gear, and a ring gear surrounding and meshing with the star gears, each of the star gears being supported on a respective journal bearing, each journal bearing including an internal central cavity and at least one passage extending radially from the internal cavity to a peripheral journal surface of the respective journal bearing, wherein the epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3, the ring gear including an inner periphery with teeth, an outer circumferential surface opposite the teeth and a flange projecting radially outwards from the outer circumferential surface, the flange including an internal passage opening at the inner periphery and at a radially outer tip of the flange, the flange being secured with a seal and an oil guide in a joint.