Electromechanically actuated valve
US4089503A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1976 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Oct 21, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention contemplates a virtually hysteresis-free electromechanically actuated, valve, wherein an electrical input current is converted into a substantially rectilineal force or displacement, using a single electrical coil and two spaced and oppositely polarized air gaps. Similarly spaced, opposed parts of the coil are compliantly mounted for and constrained to move in the respective air gaps, the constraint being such as to develop substantially a unidirectional force and/or displacement which is in the plane of the gap-shrouded parts of the coil. The actuating mechanism is described in the context of an hydraulic-valve, with incorporation of a viscous-damping feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.