Toyota Jidosha Kabushiki Kaisha

Atsuharu Ota

Yuji Iwase

Mitsuhiro Tabata

Yoshiaki Miyazato

Daichi Okumura

A power transmission device includes: a planetary gear mechanism having a sun gear, a ring gear, a plurality of pinion gears meshing with the ring gear, a pinion shaft rotatably supporting the pinion gear, and a carrier plate holding the pinion shaft, the pinion shaft having an opening that is open on one end portion in an axial direction and an oil passage that communicates with the opening and supplies lubricant flowing from the opening to an inner peripheral surface of the pinion gear; and an oil receiver, which is attached to the carrier plate, receiving lubricant, which is scattered outward in a radial direction of the ring gear from a meshing portion between the pinion gear and the ring gear at a time of rotation of the pinion gear, and guiding the lubricant to the opening.

Power transmission device

In a low load region where torque is lower than Tbut is not lower than T, the present invention uses a lean single valve small operating angle mode to provide a lean burn in a single valve small operating angle state or uses an EGR single valve small operating angle mode to provide external EGR in a single valve small operating angle mode.

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Mishima, Japan

Atsuharu Ota