Variable geometry turbine for a turbocharger and method of controlling the turbine
US8047772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2005 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Dec 19, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2220/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is described a variable geometry turbine having a sliding element (5) for the control of the section throat of the turbine (1) by sliding movement along an axial direction of a turbine wheel (71). The turbine wheel operates to convert a flow of working fluid into mechanical energy. At least one bypass channel (51) is defined in the sliding element (5). The bypass channel is further connected to a turbine wheel outlet area (79) downstream of the turbine wheel for selectively guiding an excess flow of working fluid past the turbine wheel (71), so as to control the operation of the turbine. A use of the variable geometry turbine with a turbocharger for an engine and a method for controlling such turbine is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.