Pulse-width-modulated electromagnetic valve for controlling fluid flow direction and shower head incorporating same
US10272449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | May 6, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/406
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A valve device for controlling fluid flow direction includes a cap; a valve seat secured to the cap to form a first outlet, a second outlet, and an inlet between the first and second outlets; a stem moveably disposed in a chamber between the first outlet and the second outlet; a pulse-width-modulated electromagnetic valve being adjacent to the first outlet; and a channel disposed between the stem and the pulse-width-modulated electromagnetic valve. In a first operation the pulse-width-modulated electromagnetic valve opens the first outlet and closes the second outlet so that water flows from the opening to the first outlet via the chamber and the channel. In a second operation the pulse-width-modulated electromagnetic valve closes the first outlet and opens the second outlet so that water flows from the opening to the second outlet via the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.