To keep high the lubricating oil fluidity between a second roller shaft part and a crankshaft in spite of existence of a seal for sealing the second roller shaft part rotating for controlling transmission capacity to a housing.
A working fluid scraped up by rotation of rollers 31, 32 for performing traction transmission advances from a gap between the roller 32 and a ring gear 51Lc as indicated by an arrow A1 through a thrust bearing 54L between them into an annular void between the left end part 13L of an output shaft and a crankshaft 51L. Since a radial oil hole 51Ld is provided in the crankshaft 51L between a seal ring 28 and a roller bearing 52L, the working fluid having advanced into the annular void flows through the roller bearing 52L as indicated by an arrow A2, and then returns to a lower oil sump of a housing 11 through the radial oil hole 51Ld as indicated by an arrow A3. Therefore, the fluidity of working fluid can be improved to surely lubricate the roller bearing 52L.
MORI ATSUHIRO
MITSUISHI SHUNICHI
SAKAGAMI EIGO
OGAWA KATSUYOSHI
| JP2010195198A | 2010-09-09 | |||
| JP2004251308A | 2004-09-09 |