Variable geometry turbocharger with high temperature insert in turbine throat
US5207565A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Feb 18, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D9/026
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbocharger includes a turbine housing with a variable geometry mechanism which controls the flow area of the throat through which motive exhaust gasses are communicated to the turbine wheel. The turbine housing is provided with an insert which defines one wall of the throat and which is cast in place as part of the turbine housing. The insert may be made of a relative expensive, high nickel content material to assure that a non-corrosive surface is provided adjacent to the vanes which are pivotally actuated to vary the area of the throat. The remainder of the housing is made of a standard ductile iron which is substantially less expensive than the more expensive corrosive resistant high nickel content material from which the insert is manufactured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.