Title:
WET FRICTION PLATE AND WET MULTIPLE DISC CLUTCH DEVICE PROVIDED WITH WET FRICTION PLATE
Document Type and Number:
WIPO Patent Application WO/2019/230581
Kind Code:
A1
Abstract:
Provided are a wet friction plate that is capable of improving discharge performance of lubricating oil stuck to the surface of a friction member, and a wet multiple disc clutch device provided with the wet friction plate. A wet friction plate 200 is configured by being provided with oil grooves 203 and friction members 210 on a flat-plate-shaped annular core metal 201. The friction members 210 each have a friction slide surface 213 and lubricating oil recesses 214 formed on the surface of a porous layer 211. A plurality of the lubricating oil recesses 214 are formed on a smoothly continuous surface having no sharp portions of pointed shapes such as corners, and are recessed with respect to the friction slide surface 213. The porous layer 211 has cavities 212 formed in an area constituting the friction slide surface 213 and in an area constituting the lubricating oil recesses 214, with the formation rates in both areas being the same.
Inventors:
UEHARA KAZUYA (JP)
MIYAGAWA MASATOSHI (JP)
KATAYAMA NOBUYUKI (JP)
MIYAGAWA MASATOSHI (JP)
KATAYAMA NOBUYUKI (JP)
Application Number:
PCT/JP2019/020592
Publication Date:
December 05, 2019
Filing Date:
May 24, 2019
Export Citation:
Assignee:
FCC KK (JP)
International Classes:
F16D13/62; F16D13/74; F16D69/00
Foreign References:
| JPS63288299A | 1988-11-25 | |||
| JP2008014493A | 2008-01-24 | |||
| JPH01146018U | 1989-10-06 | |||
| JP2004211781A | 2004-07-29 | |||
| JP2007263203A | 2007-10-11 |
Other References:
See also references of EP 3816467A4
Attorney, Agent or Firm:
ITO Hiroyuki (JP)
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