Patent ID: 8152674
Filing Date: 2012-04-10
Classification: F16H

Abstract:
1. A carrier assembly comprising: a carrier housing defining an internal cavity that receives a gear assembly that rotates about an axis; a sump located within said internal cavity at the gear assembly; a reservoir located within said internal cavity for holding a lubricating fluid, said reservoir being separate from said sump; and an auxiliary lubrication pump positioned within said sump, said auxiliary lubrication pump comprising a partially baffled gear pump that includes at least a first gear that rotates about said axis and a second gear driven by said first gear, and wherein said auxiliary lubrication pump includes a pump housing that closely surrounds said second gear, and wherein said pump housing includes a pump inlet that receives lubricant from the sump and a pump outlet from which the lubricant exits said pump housing, and wherein said first gear and said second gear cooperate to pump lubricant from the sump to lubricate the gear assembly and return the lubricant to the reservoir.