Two-stage fluid control valve having a first stage bi-stable two-port valve and a second stage microvalve
US10948102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Mar 3, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K2099/0096
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A two-stage fluid control valve includes a first stage electronically switchable, bi-stable two-port valve movable between an open position and a leak-free closed position, and a second stage microvalve configured to control the flow of fluid through a fluid outlet of the two-stage fluid control valve when the first stage electronically switchable, bi-stable two-port valve is in the open position. The electronically switchable, bi-stable two-port valve is disposed between the second stage microvalve and a fluid inlet of the two-stage fluid control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.