Control device for multi-stage turbochargers
US8176735B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2007 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Dec 9, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control device for multi-stage turbochargers is provided that is capable of improving fuel consumption in transient and stationary states of an engine equipped with multi-stage turbochargers. A control device 1 for multi-stage turbochargers which are turbochargers 6, 7 of at least two or more stages provided in series at an engine 2 and in which the high-pressure stage turbocharger 6 is configured by a variable-capacity turbocharger 6 equipped with a variable vane 64 comprising detection means 11, 12 for detecting a boost pressure or an intake air amount of a turbocharger 7 of a stage with a pressure lower than that of the variable-capacity turbocharger 6, the opening degree of the variable vane 64 being controlled on the basis of a detection value of the detection means 11, 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.