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Class 475/269 - WITH MEANS TO VARY DRIVE RATIO OR DISCONNECT DRIVE (E.G., BRAKE OR CLUTCH)


Subclass of Class 475 - Planetary gear transmission systems or components
Definition: Subject matter which includes a ratio-changing device to
No. of patents: 245
Last issue date: 04/24/2012


1              
NumberTitleIssue Date
8162085Hydro-mechanical clutch for a hybrid transmission and method for operating the same
A clutch assembly and method of operating the clutch assembly to start an engine of a hybrid vehicle includes a first clutch and a first clutch actuator for selectively engaging the first clutch. The first actuator has a first at-rest position engaging the clutch an...
04/24/2012
8157694Outboard motor
In an outboard motor having a power transmission mechanism for transmitting power of an engine to a propeller, the power transmission mechanism has a transmission ratio changing unit having a planetary gear train including a sun gear, planetary gears, and an interna...
04/17/2012
8152681Gear train of automatic transmission for vehicles
A gear train of an automatic transmission for vehicles has the advantages of improving power delivery performance and reducing fuel consumption as a consequence of realizing more than eight forward speeds by combining four planetary gear sets with three clutches and...
04/10/2012
7935018Automatic transmission
An automatic transmission is provided with three planetary gear units and five friction elements that establish at least six forward speeds and one reverse speed by engaging different combinations of three out of five friction elements simultaneously. In the automat...
05/03/2011
7905809Multi-speed transmission
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transm...
03/15/2011
7815540Gear and clutch arrangement for multi-speed transmission
A transmission is disclosed having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and ...
10/19/2010
78111958-speed transmission
The transmission has a plurality of members that can be utilized in powertrains to provide eight forward speed ratios and one reverse speed ratio. The transmission includes four planetary gear sets having five torque-transmitting mechanisms, two fixed interconnectio...
10/12/2010
7798932Multi-speed transmission
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transm...
09/21/2010
7758464Multi-speed transmission
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transm...
07/20/2010
76378378-speed transmission
The transmission has a plurality of members that can be utilized in powertrains to provide eight forward speed ratios and one reverse speed ratio. The transmission includes four planetary gear sets having five torque-transmitting mechanisms, three fixed interconnect...
12/29/2009
7491148System for improving the refurbishing of a transmission
A kit for improving the repair of a transmission. The kit presents components in a well organized fashion. The kit includes certain individual components and groups of components in preassembled subassemblies. For example, a subassembly can be preassembled to factor...
02/17/2009
7485066Geared torque converter with multi-plate clutches and planetary gearset
The present invention is a device for transferring power flow from a multidisplacement engine to a transmission. The device includes an enclosed housing having a first shell on the engine side, a second shell on the transmission side, with the housing at least parti...
02/03/2009
7367915Automatic speed changer
A planetary gear unit PR and a clutch C3 for outputting reduced speed rotation and a clutch C1 for connecting and disconnecting input of rotation of an input shaft to a sun gear S2 are located on one axial side of a planetary gear unit PU, and a...
05/06/2008
7354376Multi speed transmission
A transmission is provided having a planetary gearset having respective first, second, and third members, and a compound gearset having respective first, second, third, and fourth members. The transmission also includes a plurality of selectively engageable torque t...
04/08/2008
7344470Multi-speed planetary transmission
A power transmission incorporates an input planetary gearset and an output planetary gearset, which are interconnected by a plurality of torque-transmitting mechanisms to establish at least seven forward speed ratios. The input planetary gearset has one member selec...
03/18/2008
7341537Multi-speed transmission
A transmission is provided having at least three planetary gearsets, each having respective first, second, and third members, and six selectively engageable torque transmitting devices configured to selectively interconnect selected members of the planetary gearsets...
03/11/2008
7338403Torque coupling with power-operated clutch actuator
A torque transfer mechanism and a control system are disclosed for adaptively controlling the transfer of drive torque between first and second rotary members in a power transmission device of the type used in motor vehicle driveline applications. The torque transfe...
03/04/2008
7335127Multi-stage automatic transmission with three planetary gearwheel assemblies
A multi-stage automatic transmission comprises a drive input shaft (AN), a drive output shaft (AB), three planetary gearwheel assemblies (RS1, RS2, RS3) arranged next to one another in series and five shift control elements (A to E). A sun gearw...
02/26/2008
7334646Electric power tool with improved speed change gearing
A battery-operated driver-drill (1) includes an epicycle reduction gear unit (8) which encases a switchover sleeve (26) having inner teeth (27) and outer teeth (28). The gear unit (8) is rotatably mounted on second and third...
02/26/2008
7325662Dry friction launch clutch for an automatic transmission and method
A powertrain for a vehicle includes a dry friction clutch connected between an engine output member and a transmission input member. The dry friction clutch is selectively engagable to transfer torque from the engine output member to the transmission input member to...
02/05/2008
7318789Hydraulic control system for automatic transmission
An automatic transmission has an electronic control unit and a hydraulic control unit. The electronic control unit outputs an engagement command pressure to a solenoid disposed in a hydraulic control unit to generate a shelf pressure to upshift the automatic transmi...
01/15/2008
7311635Seven speed transmissions with all positive rotation components in forward speeds
Seven speed transmissions are provided that include four planetary gear sets having six torque-transmitting mechanisms with various fixed interconnections to provide seven forward speed ratios and three reverse speed ratios. The powertrain includes an engine and tor...
12/25/2007
7303501Multi-speed planetary transmissions having seven torque-transmitting devices and two fixed interconnections
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting ...
12/04/2007
7303500Multiple-speed automatic transmission
A multiple speed transmission having an input and output includes a first and second planetary gearsets, each gearset including a sun gear, a ring gear surrounding the sun gear, a set of planet pinions meshing with the sun gear and the ring gear, and a carrier on wh...
12/04/2007
7303502Gear change mechanism
A gear change mechanism coupling a pair of shafts employs a planetary gear set comprising a sun gear fast with a first of the shafts, planet gears in a planet carrier, and an annulus or ring gear, the latter being fixed. A selector hub slidable on the other of the s...
12/04/2007
7303043Actuation device
The invention relates to an actuating apparatus that can be used, for example, as an actuating apparatus for a motor vehicle transmission, the select function and the shift function being guaranteed by this actuating apparatus and it being possible to effect this us...
12/04/2007
7300378Multi-speed planetary transmissions having clutched input members and providing at least eight speed ratios
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting ...
11/27/2007
7276011Automatic transmission
An automatic transmission having first and second groups of successive forward-drive positions for outputting a rotary motion a speed of which is higher than the speed of a rotary motion received from an input member, the first group being established by an engaging...
10/02/2007
7274983Shift control method and apparatus of automatic transmission of vehicle
When a sport mode shifting request occurs during gear shifting of an automatic transmission according to a vehicle running state, a transmission control unit determines whether or not to accept the sport mode shifting request on the basis of an expected turbine spee...
09/25/2007
7264079Steerable rear tractor suspension
A steerable rear suspension for a tractor includes a chassis comprising a front end, a rear end, a left side and a right side; an engine mounted on the chassis; a pair of steerable front wheels coupled to the front end, left and right side of the chassis; a left rea...
09/04/2007
7261666Multi-speed planetary transmissions having seven torque transmitting devices engaged in combinations of five
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting ...
08/28/2007
7261013Motorized motor vehicle component
A motor vehicle component with a drive having a motor, a gearing and a component which is movable by the drive, the motor being coupled to a driving side of the gearing and a driven side of the gearing being coupled to the movable component, a kinematic chain of the...
08/28/2007
7258647Power train for 7-speed automatic transmission for vehicles
A power train of a 7-speed transmission for a vehicle is provided which comprises a first, a second, and a third single-pinion planetary gear set on an input shaft. A first ring gear and a second planetary carrier, a second ring gear and a third planetary carrier, a...
08/21/2007
7259471Drive line for fluid flow power engine with speed guidance, power impact reduction and short-term energy storage
Control procedure for a flow machine, wherein the flow machine comprises a turbine, which picks up power from a wind or water current, and a driveline, which transfers power from the turbine to an electric generator connected to an electricity grid of constant grid ...
08/21/2007
7252617Six-speed powertrain of an automatic transmission
A variable compound planetary gearset forms five operational elements by having its single and double pinion planetary gearsets be interconnected by a shared planet carrier. The variable compound planetary gearset forms six forward speeds and one reverse speeds by r...
08/07/2007
7250019Multi-speed planetary transmissions having a stationary member and seven torque-transmitting devices
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting ...
07/31/2007
7247120Multi-speed planetary transmissions having seven torque-transmitting devices engaged in combinations of two
The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting ...
07/24/2007
7238141Seven-speed powertrain of an automatic transmission for a vehicle
A seven-speed powertrain for an automatic transmission includes first, second and third single pinion planetary gear sets, each having a first gear, a ring gear, and a planet carrier as an operating member thereof. The first, the second, and the third single pinion ...
07/03/2007
7229378Shift system for transfer case
A transfer case having an input shaft driven by a powertrain, a first output shaft adapted for connection to a first driveline and a torque transfer mechanism. The torque transfer mechanism includes a friction clutch assembly operably disposed between the first outp...
06/12/2007
7226380Automatic speed changer
A second planetary gear unit PR and a clutch C1 for outputting reduced speed rotation are located on one axial side of a first planetary gear unit PU, with an output unit located therebetween. A clutch C2 which connects/disconnects an input shaft 2
06/05/2007
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