System and method for achieving engine back-pressure set-point by selectively bypassing a stage of a two-stage turbocharger
US7748218B2 · kind B2 · utility
5Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system for operating vanes of a turbocharger turbine (16T) and for operating a turbine-shunting bypass valve (22) according to a strategy wherein a processor executes an algorithm for selectively unenabling the control system to operate the bypass valve when the control system is operating the vanes to adjust exhaust back-pressure on the engine within a range of effectiveness for the vanes to control the exhaust back-pressure and enabling the control system to operate the bypass valve when the control system has operated the mechanism to a limit of the range of effectiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.