Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Impeller-turbine type fluid circuit in series with planetary...
Reexamination Certificate
2006-07-11
2006-07-11
Wright, Dirk (Department: 3681)
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Impeller-turbine type fluid circuit in series with planetary...
C475S070000
Reexamination Certificate
active
07074148
ABSTRACT:
A hydraulic controller of a power transmission device is equipped with a transmission for changing a rotation speed of motor power input from a motor and outputting the motor power; a forward/backward change-over mechanism provided between an input shaft, where the motor power of the motor is input and the transmission; and a torque converter having a direct coupling mechanism for transmitting the motor power between an output shaft and the input shaft of the motor; a solenoid valve for adjusting an original pressure and generating a control pressure; and a change-over element for changing over a hydraulic pressure supplied to the forward/backward change-over mechanism so as to become a low pressure during deceleration driving when the direct coupling mechanism is controlled by the solenoid valve, wherein any one of engagement states of the forward/backward change-over mechanism and the direct coupling mechanism is controlled by the control pressure.
REFERENCES:
patent: 5063815 (1991-11-01), Oshidari
patent: 5119698 (1992-06-01), Sugaya et al.
patent: 5188007 (1993-02-01), Hattori et al.
patent: 6503169 (2003-01-01), Nakano et al.
patent: 03-144160 (1991-06-01), None
Fujishima Kazunori
Fujita Tsuyoshi
Ishikawa Tomoaki
Nakano Shigeji
Ueno Takao
Arent & Fox PLLC
Honda Motor Co. Ltd.
Wright Dirk
LandOfFree
Hydraulic controller of power transmission device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic controller of power transmission device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic controller of power transmission device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3531057