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Title:
AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2015/194099
Kind Code:
A1
Abstract:
An automatic transmission (1) is provided with: first and second planetary gear sets (10, 20) which constitute a two-stage planetary gear set (40); a third planetary gear set (30) which is provided adjacent to the two-stage planetary gear set on one side in the axial direction of the automatic transmission; and a lubricating oil feed path (L2) for supplying a lubricating oil to a bearing unit (25) of the second planetary gear set that is disposed on an outer circumferential side. The lubricating oil feed path supplies, to the bearing unit, the lubricating oil from a first inlet port (37e) disposed in an inner circumferential side portion of a carrier body (37) on the opposite side to the two-stage planetary gear set, through a first hydraulic path (37f) in the carrier body and hydraulic paths (26a, 26b, 26c) in a pinion shaft.

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Inventors:
IWASAKI TATSUHIKO (JP)
KAMADA SHINYA (JP)
Application Number:
PCT/JP2015/002698
Publication Date:
December 23, 2015
Filing Date:
May 28, 2015
Export Citation:
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Assignee:
MAZDA MOTOR (JP)
International Classes:
F16H3/66; F16H57/04; F16H57/08
Foreign References:
JP2013194826A2013-09-30
JPS58196366A1983-11-15
JP2008545105A2008-12-11
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
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