Continuously variable transmission and a working machine including a continuously variable transmission
AssigneeVolvo Construction Equipment AB
InventorsMats Akerblom, Per Mattsson
Life of this patent
Estimating the term…
Abstract
A continuously variable transmission includes a variator unit having a variator input shaft and a variator output shaft, and a first, a second, a third and a fourth planetary gear set, wherein each of the first and second planetary gear sets has a first member operatively connected to a common transmission input shaft, which transmission input shaft is common to the first and second gear sets, and a second member operatively connected to an output shaft, which output shaft is common to the first and second gear sets. Each of the first and second planetary gear sets further includes a third member, and the third planetary gear set has a first, a second and a third member.
Claims20
A continuously variable transmission including a variator unit having a variator input shaft and a variator output shaft, and a first, a second, a third and a fourth planetary gear set, wherein each of the first and second planetary gear sets has a first member being operatively connected to a common transmission input shaft which common transmission input shaft is common to the first and second planetary gear sets and a second member being operatively connected to an output shaft which output shaft is common to the first and second planetary gear sets, each of the first and second planetary gear sets further including a third member, and the third planetary gear set having a first, a second and a third member, wherein the variator input shaft is operatively connected to the third member of the second planetary gear set and that the variator output shaft is operatively connected to the third member of the first planetary gear set, that the first member of the third planetary gear set is operatively connected to the variator output shaft, that the second member of the third planetary gear set is selectively connectable to the third member of the second planetary gear set and selectively connectable to a transmission housing, that the third member of the third planetary gear set is selectively connectable to a transmission output shaft and that a first member of the fourth planetary gear set being selectively connectable to the output shaft and selectively connectable to the third member of the third planetary gear set, a second member of the fourth planetary gear set being selectively connectable to the transmission housing and a third member of the fourth planetary gear set being operatively connected to the transmission output shaft.
Dependencies are inferred from the claim text.