Patent ID: 7025702
Filing Date: 2006-04-11
Classification: F16H

Abstract:
1. A differential in which a plurality of pinions engaged with a pair of side gears are rotatably held on a pinion shaft in a closed differential case rotated together with a ring gear by a driving force of an energy conversion machine, characterized in that the number of the pinions is three or more, the pinion shaft is movably disposed in the differential case, sliding bearings are disposed between mutually opposite surfaces of the pair of side gears and the differential case, and between mutually opposite surfaces of the pinions and the differential case, respectively, a reserve portion to reserve a lubricant supplied to the interior of the differential case is formed in a housing for said differential case, and a plurality of lubricant supply holes communicating with the inside and the outside of the differential case are formed in the outer peripheral surface of the differential case, and at least a part of the lubrication-side openings of the lubricant supply holes that are situated at a lowest part is formed to face a lubricant reserved in the reserve portion when the differential case stops rotating.