Simplified torque motor
US6344702B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jun 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2322
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A simplified torque motor which includes a plurality of parts defining appropriate alignment slots and grooves as well as openings for properly positioning the parts with respect to each other so that after being secured by appropriate fasteners, the torque motor may function as a first stage for the control of fluid through an appropriate valve. The various parts include a base carrying an armature, upper and lower pole pieces, permanent magnets, electromagnetic coils and shims disposed between the base and the lower pole piece to adjust the air gap between the poles of the upper and lower pole pieces. The shims are provided with appropriate slits to receive a tool for easy removal of the shim for air gap adjustment purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.