Multi-stage jet pump arrangement for a vacuum apparatus
US6352413B1 · kind B1 · utility
4Cited by
3References
3Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F5/54
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pumping-ejection system has a vacuum separator, a pump connected through its suction port to the vacuum separator, an inlet liquid-gas ejector, a discharge liquid-gas ejector and an outlet separator. The outlet separator is furnished with a pipe for liquid tapping, which connects the outlet separator to the vacuum separator. The liquid inlet of the discharge ejector is connected to the discharge side of the pump. The introduced pumping-ejection system requires lower power inputs for its operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.