Turbocharger compressor having ported second-stage shroud, and associated method
US7407364B2 · kind B2 · utility
13Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2005 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Dec 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A two-stage radial compressor having a ported second-stage shroud, forming a passive surge control system. Thus, some proportion of the fluid is allowed to flow between the second-stage of the compressor in the vicinity of the impeller blade tips, through a port in the shroud into an upstream portion of the compressor flow path that leads into the second-stage impeller inlet. The fluid is allowed to flow in either direction, depending on the pressure difference existing between the two locations. Surge margin at higher pressure ratios is significantly increased by the ported second-stage shroud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.