| 摘要 |
: A compact automatic transmission of the planetary type adapted for front wheel drive installations including a Ravigneaus gear set (16) and four friction elements (20, 22, 24, 26) whereby 3-forward drive ratios and one reverse ratio may be established and a shaft (28) is provided connected directly to the engine and a second shaft (36) being connected to be driven through a hydraulic torque converter (12), each of the shafts (28, 36) is connected to drive an element (40, 42) of the gear set whereby a partly hydraulic and partly mechanical drive is provided. In addition, only one friction element need be engaged for each of the ratios established by the transmission. |
