Torque converter with variable pitch stator
US4180977A · kind A · utility
8Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | Oct 26, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H41/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Torque converter with a stator whose blades are selectively set at open and closed position to tailor converter operation for optimized vehicle performance and fuel economy. Turbine discharge pressure is routed to impeller side of stator control piston to move stator blades to low angle position for improved engine economy during vehicle coast down operation. Low angle stator is also used for economical anti-creep idle and for higher stall speeds and acceleration when needed. For economical cruising and other operation, the stator blades are set at their high angle or open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.