Compact diffuser
US5735469A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | May 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0953
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A compact diffuser for recovering pressure from a supersonic flow with boundary layers. Sharp splicer plates near the wails form boundary layer scoops and separate the flow into an inner coreflow chapel and outer chambers containing small supersonic ejector nobles. The coreflow without boundary layers undergoes a single near-normal shock to recover pressure. The boundary layers are pumped to the recovery pressure in the outer ejector chambers. The subsonic part of the boundary layer flow to the outer chambers can be choked against boundary layer scoop inlet corners to isolate the upstream flow. The leading edge angle of the splicers may be selected to help induce coreflow shocking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.