Title:
VEHICLE DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/012189
Kind Code:
A1
Abstract:
The invention addresses the problem of allowing lubricating oil to be favorably supplied into a planetary gear PL of a torque differential amplification device 30 and also improving vehicle stability by the height of the center of gravity of a vehicle drive device, which has the weight thereof increased due to incorporation of the torque differential amplification device 30, being kept low. The center of gravity height of a vehicle drive device is kept low by disposing an intermediate gear shaft 13L, 13R of a speed reduction device 3L, 3R in which a torque differential amplification device 30 is incorporated in the lowest position from the ground in each gear shaft constituting the speed reduction device 3L, 3R, and the oil level of a lubricating oil enclosed in a speed reduction device housing 9 is set at a height at which the planetary gear positioned at the lowest point in the torque differential amplification device 30 in a stop state is immersed.
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Inventors:
KARASAWA HIDENORI (JP)
YAMAMOTO TETSUYA (JP)
YAMAMOTO TETSUYA (JP)
Application Number:
PCT/JP2017/022154
Publication Date:
January 18, 2018
Filing Date:
June 15, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H48/10; F16H48/36; F16H57/04; B60L9/18; B60L15/20
Domestic Patent References:
| WO2015169837A1 | 2015-11-12 |
Foreign References:
| JP2008295173A | 2008-12-04 |
Attorney, Agent or Firm:
TORII Kazuhisa et al. (JP)
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