Jet pump and porting for a pumping-ejection unit
US6302655A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F5/54
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to the field of jet technology. Essentially a pumping-ejector unit comprises a separator and a liquid-gas ejector. Gas inlet of the ejector is connected to a source of evacuated medium, outlet of the ejector is connected to the separator and nozzle's inlet of the ejector is connected to the discharge side of a pump. The pumping-ejector unit is furnished with a jet pump. Outlet of the jet pump is connected to the suction side of the pump, nozzle's inlet of the jet pump is connected to the discharge side of the pump, evacuated medium inlet of the jet pump is connected to the separator. There is another variant of embodiment of the unit, wherein the nozzle's inlet of the jet pump is connected to a source of ejecting medium. The described pumping-ejector unit exhibits an increased reliability and effectiveness and it has a wider control range of operation modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.