公开(公告)号：US20170122383A1

公开(公告)日：2017-05-04

申请号：US15311959

申请日：2015-02-26

Applicant: JATCO Ltd

Inventor： Akira SUGIMURA ,  Atsushi MAEDA ,  Kou TAKAHASHI ,  Jumpei HAYAKAWA ,  Tadashi NAITO ,  Takashi KUBO

IPC: F16D13/72 ,  F16D13/52 ,  F16D13/74 ,  F16D13/68

CPC classification number: F16D13/72 ,  F16D13/52 ,  F16D13/648 ,  F16D13/683 ,  F16D13/74 ,  F16D25/0638 ,  F16D55/40 ,  F16D65/853 ,  F16D2069/004 ,  F16D2300/0214

Abstract: In a cooling structure in a clutch having drive plates and driven plates, a lower limit of a width of each of dot grooves is set to a width a at which a flow quantity of lubricating oil passing through each of the dot grooves becomes a minimum flow quantity at which the drive plates and the driven plates can be cooled to a temperature equal to or lower than an upper limit temperature (Tmax) and an upper limit of the width of each of the dot grooves is set to a width b at which an air content in lubricating oil passing through each of the dot grooves becomes a maximum air content at which, according to lubricating oil having the air content, the drive plates and the driven plates can be cooled to a temperature equal to or lower than the upper limit temperature (Tmax).