A continuously variable transmission for a vehicle includes a drive clutch, a driven clutch operably coupled to the drive clutch, and a belt extending between the drive and driven clutches. The continuously variable transmission also includes an inner cover and an outer cover removably coupled to the inner cover. At least one of the inner and outer covers includes an air inlet for providing cooling air to the drive and driven clutches and the belt.

A continuously variable transmission for a vehicle includes a drive clutch, a driven clutch operably coupled to the drive clutch, and a belt extending between the drive and driven clutches. The continuously variable transmission also includes an inner cover and an outer cover removably coupled to the inner cover. At least one of the inner and outer covers includes an air inlet for providing cooling air to the drive and driven clutches and the belt.

Provided is an apparatus for supplying lubricant to a timing chain installed in an engine, the apparatus including an injection hole configured for injecting lubricant from an oil pump, and an inner cover having a guide groove configured to receive lubricant injected from the injection hole and guide the lubricant toward a engagement place between the timing chain and a sprocket, wherein the inner cover has a guide groove provided at a position facing an injection hole of a counter surface portion that is spaced apart from a cylinder block and faces the guide groove.

Provided is an apparatus for supplying lubricant to a timing chain installed in an engine, the apparatus including an injection hole configured for injecting lubricant from an oil pump, and an inner cover having a guide groove configured to receive lubricant injected from the injection hole and guide the lubricant toward a engagement place between the timing chain and a sprocket, wherein the inner cover has a guide groove provided at a position facing an injection hole of a counter surface portion that is spaced apart from a cylinder block and faces the guide groove.

A continuously variable transmission housing comprising an inner cover; and an outer cover connectable to the inner cover to provide the housing having an interior chamber defined therein. The housing outer cover comprises a primary clutch dome integrally formed within the housing outer cover and defining a primary clutch alcove within the interior chamber of the housing and an air duct integrally formed within the housing outer cover and extending from the primary clutch dome at a proximal end. The air duct structured and operable to direct air circulating within the interior chamber from the primary clutch alcove to an area of the interior chamber that is at an opposite end of the interior chamber from the primary clutch alcove.

A continuously variable transmission housing comprising an inner cover; and an outer cover connectable to the inner cover to provide the housing having an interior chamber defined therein. The housing outer cover comprises a primary clutch dome integrally formed within the housing outer cover and defining a primary clutch alcove within the interior chamber of the housing and an air duct integrally formed within the housing outer cover and extending from the primary clutch dome at a proximal end. The air duct structured and operable to direct air circulating within the interior chamber from the primary clutch alcove to an area of the interior chamber that is at an opposite end of the interior chamber from the primary clutch alcove.

A driving source assembly includes: a prime mover including a driving shaft; a continuously variable transmission including a CVT case; a first gear that is between the prime mover and the CVT case and rotates together with the driving shaft; a second gear that is meshable with the first gear; an energy converter including a rotating shaft that rotates in association with the second gear; and a plate which is fixed to the prime mover and to which the energy converter is fixed. The first gear is between the plate and the CVT case. The CVT case includes a recess that defines an auxiliary accommodating space accommodating the first gear. The seal is between the recess and the plate.

A driving source assembly includes: a prime mover including a driving shaft; a continuously variable transmission including a CVT case; a first gear that is between the prime mover and the CVT case and rotates together with the driving shaft; a second gear that is meshable with the first gear; an energy converter including a rotating shaft that rotates in association with the second gear; and a plate which is fixed to the prime mover and to which the energy converter is fixed. The first gear is between the plate and the CVT case. The CVT case includes a recess that defines an auxiliary accommodating space accommodating the first gear. The seal is between the recess and the plate.

A belt-type continuously variable transmission includes: a primary pulley; a secondary pulley; a belt wound along the primary pulley and the secondary pulley; and a casing accommodating the primary pulley and the secondary pulley. Further, the belt has, in a portion being wound along the secondary pulley, a radially outside end which may be located further radially outside than an outer circumference portion of the secondary pulley, and a distance from a rotation center of the secondary pulley to an internal surface of the casing in a first direction, which is along a straight line passing through rotation centers of the primary pulley and the secondary pulley, is shorter than a distance from the rotation center of the secondary pulley to the internal surface of the casing in a second direction which is orthogonal to the first direction at the rotation center of the secondary pulley.

A belt-type continuously variable transmission includes: a primary pulley; a secondary pulley; a belt wound along the primary pulley and the secondary pulley; and a casing accommodating the primary pulley and the secondary pulley. Further, the belt has, in a portion being wound along the secondary pulley, a radially outside end which may be located further radially outside than an outer circumference portion of the secondary pulley, and a distance from a rotation center of the secondary pulley to an internal surface of the casing in a first direction, which is along a straight line passing through rotation centers of the primary pulley and the secondary pulley, is shorter than a distance from the rotation center of the secondary pulley to the internal surface of the casing in a second direction which is orthogonal to the first direction at the rotation center of the secondary pulley.