Process for calibrating a variable-nozzle assembly of a turbocharger and a variable-nozzle assembly facilitating such process
US8545173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2009 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Jun 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process for calibrating a variable-nozzle assembly (200) prior to its installation in a turbocharger. The variable-nozzle assembly facilitating such process is installed in a calibration fixture (20) having internal flowpath contours configured to replicate corresponding internal flowpath contours of a turbocharger into which the variable-nozzle assembly (200) is to be installed. The calibration fixture (20) defines a generally annular chamber (110) in fluid communication with a flow path defined in the variable-nozzle assembly (200), and a fluid supply passage (112) extending into the annular chamber. A fluid is supplied through the fluid supply passage (112), and the fluid then flows through the flow path of the variable-nozzle assembly (200). While the fluid is flowing through the variable-nozzle assembly (200), the vanes (220) are pivoted to set a predetermined flow rate. A stop member (290) is then fixed to the variable-nozzle assembly (200) so that the vanes (220) cannot be pivoted past the position corresponding to the predetermined flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.