Pressure compensating emitter having very low activation pressure and large operating range
US10426104B2 · kind B2 · utility
2Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2016 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Aug 24, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/21
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pressure-compensating emitter. The emitter includes an inlet connected to a source of pressurized water and an orifice in fluid communication with the inlet and extending into a channel including a raised land surrounding an outlet. A compliant membrane is positioned above the land in the chamber wherein pressurized water will cause the membrane to deform into contact with the land to alter flow through the outlet so as to provide a constant flow rate. Parameters of the emitter are selected so that the emitter has a large operating range and an activation pressure of 0.15 bar or below.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.