Solenoid-actuated control valve with mechanically coupled armature and spool valve
US6036167A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Aug 25, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2007/146
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Solenoid-actuated control valves having low hysteresis include an annular flux housing with an axial bore extending therethrough. A coil configured to generate a magnetic field is disposed within the flux housing. A magnetic pole piece is disposed within the flux housing axial bore. A magnetic armature is slidably secured within the flux housing axial bore. A spring, positioned between the pole piece and armature, is configured to urge the armature away from the pole piece. A spool valve, slidably secured within a spool sleeve, is mechanically coupled with the armature such that the spool valve follows movement of the armature as a slave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.