Method of driving solenoid-operated proportional control valve
US4361164A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 25, 1980 |
| Grant date | Nov 30, 1982 |
| Priority date | — |
| Expiry date | Aug 25, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of driving a solenoid-operated proportional control valve is disclosed. The solenoid-operated proportional control valve is of the kind in which a valve member is displaced in proportional relation to current supplied to a solenoid under control of a control signal, and the method comprises adding a predetermined value to the control signal when the valve member starts to move to open the solenoid-operated proportional control valve from its full-closed position or subtracting a predetermined value from the control signal when the valve member starts to move to close the solenoid-operated proportional control valve from its full-open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.