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Patent Searching and Data


Title:
STRUCTURE FOR LUBRICATING PLANETARY GEAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/022213
Kind Code:
A1
Abstract:
A structure for lubricating a planetary gear device is provided with: a planetary gear device (2) comprising a cylindrical body (4) that rotates together with a carrier (3) for holding a planetary gear (22) and that has a lubricating oil inlet (44) formed therein; an annular body (5) that slides with the cylindrical body (4) and that comprises a lubricating oil supply path (51) communicating with the lubricating oil inlet (44); a pair of seal rings (7) mounted to either the cylindrical body (4) or the annular body (5) on both sides of the lubricating oil inlet (44) in the axial direction; a bypass path (71) that bypasses each of the pair of seal rings (7); and a pair of pressure reduction mechanisms (6) that are arranged either between the pair of seal rings (7) and the lubricating oil inlet (44) or on the outside of the pair of seal rings (7) and that restrict the flow of lubricating oil between the cylindrical body (4) and the annular body (5).

Inventors:
YOSHITOMI MAMORU
AKAHORI HIROFUMI
NISHIDA TOORU
Application Number:
PCT/JP2016/003483
Publication Date:
February 09, 2017
Filing Date:
July 27, 2016
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F16H57/04; F16H1/28; F16J15/18; F16J15/447
Foreign References:
JPS60169462U1985-11-09
JP2014005841A2014-01-16
JP2014088962A2014-05-15
GB2234035A1991-01-23
Other References:
See also references of EP 3333459A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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