Cooling fluid supply to hydraulically actuated rollers in a continuously-variable-ratio transmission
US6306060A · kind A · utility
23Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Sep 12, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/049
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A roller control unit for a CVT includes a cylinder (54) having a piston (70) positioned therein and operably connected to a roller assembly of said CVT thereby to control its position. The unit includes a lubrication supply which comprises a chamber (94) between the cylinder (54) and piston (70) and one or more radially extending passageways (102) through said piston (70). These passageways are in flow communication with the roller and act to direct cooling fluid to said roller. Radial supply of said lubrication facilitates a reduction in flow losses within the supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.