Oil pressure control apparatus

Details Oil pressure control apparatus Oil pressure control apparatus

2008-09-08

2011-10-18

Kim, Sang (Department: 3654)

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Load responsive

C474S028000

Reexamination Certificate

active

08038553

ABSTRACT:
In one embodiment, an oil pressure control apparatus includes a belt-driven continuously variable transmission, a lockup clutch provided in a torque converter, a primary regulator valve that regulates a line oil pressure that becomes a source pressure of oil pressure of various parts, and a clamping oil pressure control valve that supplies a clamping oil pressure to a driven-side pulley of the belt-driven continuously variable transmission. Control of the primary regulator valve is performed with a control oil pressure of a linear solenoid valve that controls the clamping oil pressure control valve, and a control oil pressure of a linear solenoid valve that controls engagement/release of the lockup clutch.

REFERENCES:
patent: 6364802 (2002-04-01), Yi
patent: 6443871 (2002-09-01), Taniguchi et al.
patent: 7229372 (2007-06-01), Shimanaka et al.
patent: 7546196 (2009-06-01), Izumi et al.
patent: 100 25 347 (2001-03-01), None
patent: 2000-130574 (2000-05-01), None
patent: 2006-153104 (2006-06-01), None
patent: 2007162731 (2007-06-01), None

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