POWER TRANSMISSION DEVICE

WIPO Patent Application WO/2024/034282

A1

[Problem] To improve the stirring resistance of an axle in an oil reservoir. [Solution] A power transmission device comprises: a case having, at a bottom part thereof, an oil reservoir; and a first axle, a second axle, and a third axle which are axially supported by the case. The first axle has a first gear part which is connected to a power source, and which outputs power from the power source. The second axle has a second gear part into which power from the first gear part is input, and which outputs the power that was input. The third axle has a third gear part into which power from the second gear part is input, and which is at least partially immersed in the oil reservoir. The case comprises: an air breather chamber that separates air and oil within the case, and that communicates with the atmosphere; an oil catch tank that stores oil scraped up by the third gear part; and an oil guide that introduces the oil scraped up by the third gear part into the oil catch tank. The air breather chamber is provided above and near the third axle. The oil catch tank is provided above and near the first axle. The oil guide is provided above the second axle. The second axle is disposed within the case on the outside of the oil reservoir.

TSUCHIDA AKIRA (JP)

PCT/JP2023/023942

February 15, 2024

June 28, 2023

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JATCO LTD (JP)
NISSAN MOTOR (JP)

F16H57/023; F16H57/027; F16H57/04

JP2005201316A	2005-07-28
JP2007057093A	2007-03-08
JP2022064684A	2022-04-26
KR20220012091A	2022-02-03
JP2021162132A	2021-10-11

GOTOH & PARTNERS (JP)

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