Drive mechanism for the movement of an object along an axis of motion and micro-valve
US8777179B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Nov 10, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive mechanism for the movement of an object along an axis of motion comprises two clamping elements and a drive element disposed between the two clamping elements which enables a relative movement of the two clamping elements along the axis of motion. Each clamping element comprises a base body and two clamping jaws, wherein a piezo-actuator is disposed between the base body and at least one of the two clamping jaws, which can produce a clamping force acting on the object which is directed transversely to the axis of motion. The base bodies of the two clamping elements are connected by at least two expansible elements. The drive element comprises a further piezo-actuator, which enables the relative displacement of the two clamping elements along the axis of motion. The drive mechanism is suitable for application in a micro-valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.