A power transmission device for vehicles

Japanese Patent JP6080207

B2

The invention provides an automotive power transmission device which can lubricate an annular surface transmission mechanism of the automotive power transmission device and a gear for power transmission respectively through appropriate oil. The inner part of a transmission (11) is divided into a first chamber (15) for accommodating the annular surface transmission mechanism (22) and a second chamber (16) for accommodating a first gear (32) and a second gear (38). First oil is used for lubricating the annular surface transmission mechanism (22) in the first chamber (15). Second oil is used for lubricating a first gear (32) and a second gear (38) in the second chamber (16). Therefore, the temperature and viscosity of the first oil which is expected to be maintained to a relatively low temperature and has high viscosity, and the temperature and viscosity of the second oil which is expected to be maintained to a relatively high temperature and has low viscosity can be singly managed. Traction performance of the annular surface transmission mechanism (22) can be improved. Furthermore, agitation resistance of the second oil for the first gear and the second gear (32,38) can be reduced, and driving loads of the oil pumps (42,46) for supplying the second oil are reduced.

Takao Sato
Kentaro Arai

JP2013127770A

February 15, 2017

June 18, 2013

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Honda motor industry stock company

F16H57/04; B60K6/36; B60K6/40; B60K6/405; B60K6/48; B60K6/543; F16H15/38; H02K7/18

JP62283256A
JP2010284045A
JP11350956A

Ken Ochiai
Kazuaki Niki
Nude Shima Shinji

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