VEHICULAR POWER TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a vehicular power transmission device capable of supplying oil toward a planetary pinion by using rotation of a sun gear.

SOLUTION: This power transmission device 20 for a hybrid vehicle 1 can transmit part of mechanical power output from an internal combustion engine 10 to a driving shaft 98 by dividing the mechanical power by a planetary gear mechanism 30. A ring gear 70 rotates by interlocking with the driving shaft 98, and a planetary carrier 50 has a sun gear shaft 44 joined to an engine output shaft 12 of the internal combustion engine 10 and joining the sun gear 40 and a rotor 41 of an electric motor MG1. The sun gear shaft 44 is formed with an oil outflow hole 46 capable of making the oil existing in an inside space B flow out to a pinion side space D when the sun gear shaft 44 rotates by communicating the inside space B of the sun gear shaft 44 with the pinion side space D faced with a planetary pinion 60 supported by the planetary carrier 50.

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