Patent application number | Description | Published |
20080280727 | SYSTEM FOR TRANSMITTING HYDRAULIC PRESSURE - A system for transmitting hydraulic pressure in an automatic transmission housed in a transmission case. The system includes a valve body for generating the hydraulic pressure, a first hole unit in the transmission case, and a second hole unit. The first hole unit includes at least one hole perpendicular to an output shaft of the automatic transmission so as to transmit the hydraulic pressure to a first passage. The second hole unit includes at least one additional hole for receiving the hydraulic pressure through the first passage and transmitting the hydraulic pressure to a second passage. | 11-13-2008 |
20080312026 | POWER TRAIN OF AUTOMATIC TRANSMISSION - A power train of an automatic transmission attains eight forward speeds and one reverse speed. The power train includes first, second, and third planetary gear sets, four clutches, and two brakes. The first planetary gear set generates a reduced rotational speed, the second planetary gear set generates a reverse rotational speed, and the third planetary gear set generates the eight forward speeds and the one reverse speed by using the reduced rotational speed, the reverse rotational speed, and a rotational speed of an input shaft. | 12-18-2008 |
20090209386 | GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A gear train in an automatic transmission for vehicles may include: a first planetary gear set outputting reduced and same rotational speeds through two pathways by using torque received from an input shaft through one input pathway; a second planetary gear set outputting reversed and same outputs by using the reduced rotational speed from the first planetary gear set, and outputting an increased input when the reduced and same rotational speeds are simultaneous inputted from the first planetary gear set; and a third planetary gear set outputting six forward speeds and one reverse speed by using the outputs from the second planetary gear set and torque from the input shaft. | 08-20-2009 |
20090270219 | Gear Train of Automatic Transmission for Vehicles - A gear train of an automatic transmission for a vehicle includes two simple planetary gear sets and one compound planetary gear set, four clutches, and three brakes and realizes ten forward speeds and one reverse speed so that power delivery performance may be improved and fuel consumption may be reduced. | 10-29-2009 |
20090298637 | Gear Train of Automatic Transmission for a Vehicle - The present invention provides gear train of an automatic transmission for a vehicle having a first planetary gear set being a double pinion planetary gear set, a second planetary gear set being a single pinion planetary gear set, a third planetary gear set being a Ravigneaux planetary gear set, with five clutches and two brakes, which realizes ten forward speeds and three reverse speeds. | 12-03-2009 |
20090298639 | Gear Train of Automatic Transmission for Vehicles - A gear train of an automatic transmission for vehicles has two simple planetary gear sets and one compound planetary gear set with four clutches and three brakes to achieve ten forward speeds and three reverse speeds. | 12-03-2009 |
20110245013 | GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A gear train of an automatic transmission realizes at least ten forward speeds and one reverse speed by combining four simple planetary gear sets with four clutches and two brakes. In addition, three friction elements are operated at each shift-speed. Therefore, the gear train has advantages of simplifying structures of the automatic transmission and improving power delivery performance and fuel economy. | 10-06-2011 |
20110245017 | GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A gear train of an automatic transmission for vehicles realizes at least eight forward speeds and two reverse speeds by combining three simple planetary gear sets with four clutches and two brakes. In addition, two friction elements are operated at each shift-speed. Therefore, the gear train has advantages of simplifying structures of the automatic transmission and improving power delivery performance and fuel economy. | 10-06-2011 |