Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid controlled mechanical clutch or brake
Reexamination Certificate
2006-10-31
2006-10-31
Estremsky, Sherry (Department: 3681)
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid controlled mechanical clutch or brake
C475S146000
Reexamination Certificate
active
07128679
ABSTRACT:
The present invention is directed to methods and systems for improving the operation of transmissions for automotive vehicles, and in particular the “factory installed” automotive transmissions installed by the original automobile manufacturer. The methods and systems in accordance with the present invention modify both the structural components and the hydraulic circuitry of the original automotive transmissions to enhance the operation of the modified transmissions. The improvements to the operation of the “factory installed” transmissions, and in particular the Allison transmission, include modification of the flow control valve to increase line pressure during lockup; modifications to the rotating clutch module to increase the torque held by the clutch and prevent clutch slippage, and modifications to the trim valves to adjust the pressure applied to the clutches for more efficient operation of the transmission.
REFERENCES:
patent: 3365985 (1968-01-01), Johnson
patent: 3641879 (1972-02-01), Week et al.
patent: 3757809 (1973-09-01), Le Bar, Jr.
Estremsky Sherry
Stone Mark P.
LandOfFree
Methods and systems for improving the operation of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and systems for improving the operation of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for improving the operation of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3637478