Turbocharger compressor having adjustable-trim mechanism
US10550761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2018 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Apr 29, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/51
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism operable to move between an open position and a closed position. The inlet-adjustment mechanism includes a plurality of blades disposed about the compressor air inlet and located within an annular space within the air inlet wall. The blades are pivotable about respective pivot points such that the blades extend radially inward from the annular space into the air inlet when the blades are in the closed position so as to form an orifice of reduced diameter relative to a nominal diameter of the inlet. The blades include lever arms that engage the outer periphery of a rotatable unison ring that is linked to a linear actuator for rotating the unison ring so as to pivot the blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.