Flow device and method
US4198357A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Dec 8, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M9/103
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flow device and method delivers a gaseous medium to utilization equipment having variable pressure conditions at its intake. A gaseous medium intake zone connects with structure defining a variable area throat zone for constricting the flow of the gaseous medium to increase the velocity thereof to sonic. The throat zone is adjustably varied in correlation with operating demands imposed upon the utilization equipment. Wall structure downstream from the throat zone provides a gradually diverging zone for efficiently recovering the kinetic energy of the high velocity gaseous medium as static pressure. Through such efficient recovery the velocity of gaseous medium through the throat zone is sonic over a wide range of pressure conditions at the intake of the utilization equipment. A flow splitter is spaced from the adjustable throat zone and the splitter is arranged to divide the downstream end portion of gradually diverging zone into multiple zones of reduced divergence. The multiple zones have reduced divergence compared to the divergence of the upstream end portion of the gradually diverging zone and also the downstream end portion if the splitter were not present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.