Continuously variable transmission

A nozzle for supplying lubrication and cooling fluid to a continuously variable transmission for a motor vehicle, the nozzle comprising:

• a fluid supply passage for supplying the nozzle with lubrication and cooling fluid for lubricating and cooling both a primary cone pulley set and a secondary cone pulley set connected with one another by a rotatable belt;
• and
• an input shaft supporting the primary cone pulley set and an output shaft supporting the second cone pulley set, and both the primary and the secondary cone pulley sets each comprise a pair of cone pulleys (1, 2) with one pulley being an axially fixed cone pulley and another pulley being an axially movable cone pulley;
• wherein the fluid supply passage in the nozzle communicates with first and second axially separated discharge openings and an initial diameter of the fluid supply passage diminishes between the first and second discharge openings, and the second discharge opening has a smaller diameter than the first discharge opening to provide a steady uniform fluid flow in the area of the first and second discharge openings;
• and
• the initial diameter of the fluid supply passage defines a cross-section which corresponds at least to a sum of a cross-section of each said first and said second discharge openings (7, 8).

A continuously variable transmission for a motor vehicle comprising:

• an encircling device (3) which rotates around a first and a second pair of cone pulleys (1, 2), the first pair of cone pulleys (1) is disposed on an input shaft and the second pair of cone pulleys (2) is disposed on an output shaft, and both the first and
• a single, multiple jet nozzle for supplying cooling and lubricating fluid to the encircling device (3) and the first and second pairs of cone pulleys (1, 2);
• and
• wherein the multiple jet nozzle further comprises a fluid supply passage communicating with only first and second discharge openings with the first discharge opening being axially spaced from the second discharge opening, and a flow diameter of the fluid supply passage diminishes between the first and second discharge openings, and the second discharge opening has a smaller diameter than the first discharge passage to provide a steady uniform fluid flow in the area of the first and second discharge openings.