Low-pressure and low-energy self-regulating valve
US10761545B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Apr 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/055
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A passive, self-regulating valve includes a static pressure chamber and an elastically collapsible tube supported within the static pressure chamber. The elastically collapsible tube is defined by a geometry that determines an activation pressure of the valve. The passive, self-regulating valve also includes a flow restrictor in fluid communication with the elastically collapsible tube inside the static pressure chamber, as well as piping connecting a source of pressurized liquid both to the flow restrictor and to an opening into the static pressure chamber. The piping enables the flow restrictor to control flow rate of the pressurized liquid through the valve independent of the activation pressure of the valve. In a preferred embodiment, the flow restrictor is a needle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.