System and methods for estimating fluid flow based on valve closure time
US10058879B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Jan 23, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B15/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Spray systems and control systems for use with spray systems are provided. A method of detecting fluid flow through a nozzle coupled in fluid communication with a solenoid valve including a solenoid coil and a poppet is provided. The method generally includes (1) dispensing fluid through the solenoid valve and the nozzle, (2) de-energizing the solenoid coil to close the solenoid valve and control a fluid flow through the nozzle, (3) determining a closing time of the solenoid valve based on a signal from a poppet measuring device, and (4) determining a fluid flow value based on a time delay between the de-energizing the solenoid coil and the closing time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.