Apparatus and method for controlling a solenoid valve
US6069783A · kind A · utility
8Cited by
22References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Nov 6, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/004
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for controlling a solenoid valve wherein the flow rate of the valve relative to a specific percent duty cycle may be varied. The controller is such that after the desired flow of the solenoid valve is determined, the frequency and percent duty cycle of an output signal controlling the solenoid valve is varied. Such a controller utilizes varying frequencies to provide multiple slope flow rates with a single passage solenoid valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.