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Class 475/50 - Fill and empty type fluid circuit


Subclass of Class 475 - Planetary gear transmission systems or components
Definition: Subject matter wherein the operation of the fluid torque
No. of patents: 10
Last issue date: 05/15/2007


NumberTitleIssue Date
7216748Method and apparatus for releasing torque on a drivetrain
The present invention is a drivetrain that prevents the torque from a decelerating engine from being transmitted to the wheels of the vehicle. The drivetrain of a vehicle is provided such that the negative torque from the decelerating engine of the vehicle is select...
05/15/2007
5946984Method and apparatus for gear shifting control with improved shift quality during gear shifting
An apparatus for gear shifting control with improved shift quality during gear shifting includes a gearbox unit containing at least one gear branch for power transfer via a hydrodynamic clutch. The hydrodynamic clutch can be coupled in series with a mecha...
09/07/1999
5030179Discrete-ratio transmissions
A manually-shifted transmission for use in passenger cars and trucks includes a number of constantly-meshed pairs of gears for coupling one shaft to another through a dog clutch on the power output gear of each gear pair. Also included in this basic confi...
07/09/1991
4964843Power transmission unit for variable-speed drive of machinery
In a power-transmission unit for variable-speed drive of machinery with hydro-dynamic speed-superposition of a differential gear a second torque converter is provided as a braking device. This increases the effectiveness of the unit by feedback of the sup...
10/23/1990
4726255Power transmission system for driving a variable speed processing machine
A power transmission system serves to drive a variable-speed processing machine normally in a lower speed range and if necessary in an upper speed range. The system essentially comprises the following elements which are all disposed coaxially to one anoth...
02/23/1988
4671062Torque converter having valve means for detecting speed ratio of torque converter
A speed ratio detecting valve means of torque converter comprising a hub of a stator vane spline fitted onto a fixed shaft and being freely rotatable through a prescribed play angle, the hub being permitted to rotate relative to the fixed shaft by said pl...
06/09/1987
4615239Ship gear train arrangement
A ship gear train arrangement includes a differential gearing between a main input shaft and output shaft and a parallel shaft with a hydrodynamic coupling (50). The parallel shaft connects a point (at 60) of the main input shaft on the input side (30) of...
10/07/1986
4459873Marine propulsion system
A propulsion transmission for a ship having a reversibly driven propeller shaft with a fixed pitch propeller and a torque converter of the single stage and fixed housing type for driving the propeller in the reverse direction. A planetary gear system is p...
07/17/1984
4289044Motor vehicle transmission
A motor vehicle hydrodynamic transmission is provided with a torque converter and a planetary gear train. In order to provide a compact transmission arrangement, the stator of the torque converter is connected to the planetary gear carrier by means of a f...
09/15/1981
4184386Multi-speed transmission, especially for motor vehicles
A multi-speed transmission, especially an automatic transmission for vehicles with at least three speeds, utilizing fluid circulations and force-lockingly operable engageable units for the shifting of the transmissions, especially with the use of epicycli...
01/22/1980
 
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