Turbocharger having adjustable-trim centrifugal compressor including air inlet wall having cavities for suppression of noise and flow fluctuations
US11808283B2 · kind B2 · utility
0Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2021 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Oct 15, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/51
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor for a turbocharger includes an inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position in the air inlet. The compressor housing upstream of the inlet-adjustment mechanism defines a series of acoustic cavities, and openings are defined in the compressor housing wall leading into the acoustic cavities. The openings and cavities are aimed at mitigating noise and flow pulsation in the air inlet caused when the inlet-adjustment mechanism is adjusted to the closed position to effectively reduce the inlet diameter approaching the compressor wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.