Flow rate controller for high flow rates and high pressure drops
US9052715B2 · kind B2 · utility
4Cited by
18References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2011 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Feb 21, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8593
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flow rate controller is disclosed that maintains constant flow rate with changes in pressure drop across the valve by maintaining a constant pressure drop across a restrictor with the aid of a spring balanced piston that mates a cone to a seat to dissipate the majority of pressure drop across the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.