Поиск по международным и национальным патентным фондам

1. (WO2008102887) AUTOMATIC TRANSMISSION

Pub. No.:    WO/2008/102887    International Application No.:    PCT/JP2008/053099
Publication Date: Fri Aug 29 01:59:59 CEST 2008 International Filing Date: Sat Feb 23 00:59:59 CET 2008
IPC: F16D 25/12
F16D 13/60
F16D 25/0638
F16D 25/10
F16H 3/62
F16H 3/66
Applicants: AISIN AW CO., LTD.
アイシン・エィ・ダブリュ株式会社
NISHIDA, Masaaki
西田 正明
KATOU, Hiroshi
加藤 博
KITOU, Masashi
鬼頭 昌士
IIZUKA, Kohei
飯塚 晃平
Inventors: NISHIDA, Masaaki
西田 正明
KATOU, Hiroshi
加藤 博
KITOU, Masashi
鬼頭 昌士
IIZUKA, Kohei
飯塚 晃平
Title: AUTOMATIC TRANSMISSION
Abstract:
A clutch unit for an automatic transmission, compact in the axial direction and having a simple oil path. One clutch (C3) and the other clutch (C4) that have hydraulic servos (20, 40), respectively, and cancel oil chambers (28, 48), respectively, are arranged at radially different positions in an axially overlapped manner. Oil is supplied from oil holes (b) to a hydraulic oil chamber (27) of the one clutch (C3) through a gap (B) between an inner wall of an outer drum (222) and an outer surface (71) of an inner drum (221), and lubrication oil is supplied from oil holes (a) to the cancel oil chamber (28) through a gap (A) between a clutch drum (42) of the other clutch (C4) and a rear surface (70) of the inner drum (221). In the gap (B), a groove (74) facing openings (b2) of the oil holes (b) are formed in the inner wall of the outer drum (222). In the gap (A), a space portion (A'), where no projections (72) having oil holes (b) are present, is placed in the same phase as the oil holes (a).