Abstract Speed change gears of the planetary gear type suited for applications within fluid couplings used upon automotive vehicles includes an input shaft, a first clutch for releasing or coupling a second ring gear and a third sun gear simultaneously from or to the input shaft, a second clutch for releasing or coupling a first sun gear and a second sun gear simultaneously from or to the input shaft, a first planetary gear engaged with the first sun gear, a first ring gear engaging the first planetary gear, a first carrier rotatably supporting the first planetary gear, a second planetary gear engaged with the second sun gear and the second ring gear, a second carrier rotatably supporting the second planetary gear, a third planetary gear enmeshed with the third sun gear, a third ring gear interengaged with the third planetary gear and coupled to the first ring gear, a third carrier rotatably supporting the third planetary gear and coupled to the second carrier and to an output shaft, a first brake capable of locking the first sun gear and the second sun gear simultaneously to a casing, a second brake capable of locking the first carrier relative to the casing, and a third brake capable of locking the first ring gear and the third ring gear simultaneously to the casing.
A speed change gear comprising: an input shaft; a first clutch for coupling or uncoupling a second ring gear and a third sun gear simultaneously to or from said input shaft; a second clutch for coupling or uncoupling a first sun gear and a second sun gear simultaneously to or from said input shaft; a first planetary gear engaged with said first sun gear; a first ring gear engaged with said first planetary gear; a first carrier rotatably supporting said first planetary gear; a second planetary gear engaged with said second sun gear; a second carrier rotatably supporting said second planetary gear; a third planetary gear engaged with said third sun gear; a third ring gear engaged with said third planetary gear and coupled to said first ring gear; a third carrier rotatably supporting said third planetary gear and coupled to said second carrier and to an output shaft; a second brake capable of being actuated for locking said first carrier to a casing; and a third brake capable of being actuated for locking said first ring gear and said third ring gear simultaneously to said casing.
Claim 2
Dependent Claim
187 words
A speed change gear comprising: an input shaft; a first clutch for coupling or uncoupling a second ring gear and a third sun gear simultaneously to or from said input shaft; a second clutch for coupling or uncoupling a first sun gear and a second sun gear simultaneously to or from said input shaft; a first planetary gear engaged with said first sun gear; a first ring gear engaged with said first planetary gear; a first carrier rotatably supporting said first planetary gear; a second planetary gear engaged with said second sun gear; a second carrier rotatably supporting said second planetary gear; a third planetary gear engaged with said third sun gear; a third ring gear engaged with said third planetary gear and coupled to said first ring gear; a third carrier rotatably supporting said third planetary gear and coupled to said second carrier and to an output shaft; a second brake capable of being actuated for locking said first carrier to a casing; and a third brake capable of being actuated for locking said first ring gear and said third ring gear simultaneously to said casing.