Stepless speed-change power transmission for vehicle
US9140340B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Nov 14, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/0203
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A stepless speed-change power transmission for a vehicle includes a driving pulley disposed on an input shaft and including a fixed driving pulley half and a movable driving pulley half, a driven pulley disposed, on an output shaft and including a fixed driven pulley half and a movable driven pulley half, and an air guide unit. The air guide unit includes a curved first air guide wall and a curved second air guide wall that are disposed around the fixed driving pulley half to form first and second notches between the first and second air guide walls. The first notch guides air from the fixed driving pulley half onto the driven pulley. The second notch guides air from the fixed driving pulley half onto the movable driving pulley half.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.