Patent ID: 8460138

Claim:
A V-belt continuously variable transmission comprising: a primary sheave disposed on a primary shaft, to which torque is input from a power source, and including a V-groove with a variable width; a secondary sheave disposed on a secondary shaft, from which the torque is output to a driving wheel, and including a V-groove with a variable width; a V-belt received in the respective V-grooves of the primary sheave and the secondary sheave; an electric motor arranged to drive a groove width adjustment mechanism for the V-groove of the primary sheave; and a case arranged to house the primary sheave and the secondary sheave; wherein the case includes an opening arranged to at least suck air into the case, and the electric motor is disposed in a flow path of the air outside the case; the V-belt is wound around the primary sheave and the secondary sheave to define a ring; the electric motor at least partially overlaps an inside area of the ring in a lateral side view of a vehicle including the V-belt continuously variable transmission; a case cover arranged to cover the electric motor and attached to an outer side of the case; the electric motor is disposed in a space defined between the case and the case cover; the case cover includes an opening through which the air is introduced into the space; and the air in the space is introduced into the case through the opening of the case cover.