Belt type continuously variable transmission
US7288043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Aug 22, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A belt type continuously variable transmission including a primary pulley; a secondary pulley; a belt which is looped over the primary pulley and the secondary pulley; a reduction gear unit that transmits torque, which has been output from an internal combustion engine and then transmitted to a secondary shaft, to a final reduction gear unit that is provided so as to be coaxial with the secondary shaft of the secondary pulley; and a damper oil chamber which is provided between the secondary shaft and an input shaft of the reduction gear unit. A thrust force generated in the reduction gear unit due to an input of a driving force is transmitted to a hydraulic fluid in a damper oil chamber, and then absorbed. Therefore, a displacement of a relative position between the primary pulley and the secondary pulley is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.