公开(公告)号：US10378615B2

公开(公告)日：2019-08-13

申请号：US15529751

申请日：2015-11-30

申请人： AISIN AW CO., LTD.

发明人： Naoya Jinnai ,  Masahiro Otake ,  Shota Ikeda ,  Minoru Todo ,  Takuya Nakajima

IPC分类号： F16H3/66 ,  F16D25/0638 ,  F16D1/10 ,  F16D13/64 ,  F16D21/06 ,  F16D25/10 ,  F16H45/02 ,  F16D13/76 ,  F16H57/10 ,  F16D13/74 ,  F16D25/12 ,  F16H57/08

摘要： A clutch that includes a friction plate; a separator plate; a clutch hub; and a piston that presses the friction plate and the separator plate, wherein the clutch hub includes a hub on which an inner peripheral portion of the friction plate or the separator plate is fitted, a tubular shaft that movably supports the piston, and an engagement oil chamber defining wall that together with the piston defines an engagement oil chamber to which an engagement oil pressure is supplied, the hub is spline-fitted on a gear of a planetary gear so as to rotate with the gear, and the tubular shaft is rotatably supported by a central shaft and is fitted by a spigot joint in the gear.

公开(公告)号：US10352409B2

公开(公告)日：2019-07-16

申请号：US15030465

申请日：2014-11-25

申请人： AISIN AW CO., LTD.

发明人： Naoya Jinnai ,  Shota Ikeda ,  Hiroshi Kato ,  Takuya Nakajima

IPC分类号： F16D25/0638 ,  F16H3/66 ,  F16H61/02 ,  F16D48/02 ,  F16H63/30 ,  F16D125/10

摘要： A brake of an automatic transmission includes: first and second recessed portions and formed in a center support; a first piston having a first pressure-receiving portion that is disposed in the first recessed portion and defines a first engagement oil chamber and having a plate-pressing portion that presses friction plates and separator plates; a second piston having a second pressure-receiving portion that is disposed in the second recessed portion and defines a second engagement oil chamber and a piston-pressing portion that presses the first piston by supply of oil pressure to the second engagement oil chamber; and a return spring that biases the first piston so that the first piston moves away from the friction plates and the separator plates.