Ultrasonically controlled valve
US7178554B2 · kind B2 · utility
3Cited by
26References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2005 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | May 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/791
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ultrasonically operated valve a source of ultrasonic energy for excitation of a pressurized liquid. The vibration of the ultrasonic horn imparts a pulsing of the pressure of the liquid within the valve. Selection of a sealing mechanism that responds at a different natural frequency than that of the valve body causes the sealing mechanism to unseat and therefore to enable liquid flow. The sealing mechanism will stay unseated as long as the source is imparting energy to the system and therefore inducing pressure pulses in the liquid thus keeping the sealing mechanism away from the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.