Friction gear transmission systems or components – With lubrication
Patent
2000-03-09
2000-11-07
Herrmann, Allan D.
Friction gear transmission systems or components
With lubrication
192 33, 476 42, F16H 5704, F16H 1538
Patent
active
061429066
ABSTRACT:
A toroidal continuously variable transmission (11) having power rollers (18A-18D) held between input discs (19, 20) and output discs (21, 22) and transmitting power and a torque converter (12) having a lock up clutch (12D) connected to the continuously variable transmission (11) are provided. The line pressure of a working fluid supplied from a pump (1) is adjusted by a pressure regulator valve (2), and the adjusted line pressure is introduced to a lock up control valve (5) for controlling a fluid pressure to be supplied to the lock up clutch (12D) of the torque converter (12) through a pressure passage (31). Further, an oil cooler (32) is interposed in a downstream portion of the lock up control valve (5). The lubricating circuit of the continuously variable transmission is separated into a first lubricating circuit 33 for lubricating a bearing member of the power rollers (18A-18D) and a second lubricating circuit (35) for lubricating a rolling surface between the input and output discs (19-22) and the power rollers (18A-18D). The first lubricating circuit (33) is connected to a downstream portion of the cooler (32) and the second lubricating circuit (35) is connected to an upstream portion of the lock up control valve (5).
REFERENCES:
patent: 4880091 (1989-11-01), Hasegawa et al.
patent: 4966263 (1990-10-01), Hayasaki
patent: 5090527 (1992-02-01), Imamura et al.
patent: 5136890 (1992-08-01), Hibi et al.
patent: 5152386 (1992-10-01), Imamura
patent: 5163540 (1992-11-01), Mainquist et al.
patent: 5219055 (1993-06-01), Imamura
patent: 5251734 (1993-10-01), Benford et al.
patent: 5332073 (1994-07-01), Iizuka
patent: 5722519 (1998-03-01), Kirchhoffer et al.
Sakai Hiromasa
Sugihara Jun
Herrmann Allan D.
Nissan Motor Co,. Ltd.
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