Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Patent
1991-01-04
1991-07-23
Herrmann, Allan D.
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
475 75, 475 76, 475 80, 475317, 475323, F16H 4704
Patent
active
050339940
ABSTRACT:
An apparatus for providing an automatic transmission, including at least one planetary gear, at least one braking pump, at least one flow control valve and an oil path system provided therebetween for obtaining a continuously variable transmission (CVT). Each braking member of at least one planetary gear of the present invention is connected to each rotor shaft of at least one braking pump. A sensing means is provided for sensing a rotation speed of a rear propeller shaft and to output predetermined amounts of pressurized working fluid in response to the rotation speed of the rear propeller shaft. A first flow control valve provided on an oil path system is controlled by the pressurized working fluid to be closed to various extents so as to reduce the flow within the oil path system. The rotation speed of at least one braking pump together with each braking member is also reduced, on extreme conditions the pumps even stop. The planetary gear obtains a reaction force therebetween and obtains a desired torque for transmission.
REFERENCES:
patent: 3184913 (1965-05-01), Anderson et al.
patent: 3505908 (1970-04-01), Herrmann
patent: 3969975 (1976-07-01), DeLalio
patent: 4185521 (1980-01-01), Beals
patent: 4354400 (1982-10-01), Baker
patent: 4429593 (1984-02-01), Michael
patent: 4434972 (1984-03-01), Charles
patent: 4446756 (1984-05-01), Hagin et al.
Herrmann Allan D.
Klein David I.
Levi Benjamin
Rosenberg Morton J.
LandOfFree
Apparatus for providing an automatic transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for providing an automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for providing an automatic transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-430014