Piezoelectric pump which uses a piezoelectric actuator
US5215446A · kind A · utility
35Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Oct 23, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/046
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a piezoelectric pump using a piezoelectric actuator. The piezoelectric pump comprises an upper pump chamber main body having three pump chambers, a lower pump chamber main body having three pump chambers, and a piezoelectric actuator which has three actuator segments. The piezoelectric actuator is supported between the upper pump chamber main body and the lower pump chamber main body. The resultant piezoelectric pump has a simple and small structure and a high pump efficiency because both of the paired upper and lower pump chambers can be driven by an associated actuator segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.