Piezoelectric pump unit
US9599102B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 31, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Oct 23, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The piezoelectric pump unit consists of a housing, a piezo anchor, located in the housing, a displacer, located at the front of the housing. The piezo anchor and the displacer are connected. The piezo anchor consists of a rear piezoelectric clamp section, of a piezoelectric extender section and of a front piezoelectric clamp section, connected in series. At least one slider is introduced in the piezoelectric extender section between its front and rear ends. Electric pulses accessing at sections from a control station cause said sections to become fixed alternately inside the housing. Under the effect of electric pulses, the piezoelectric extender section moves the displacer step-by-step in one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.