Flow rate controller for high flow rates and high pressure drops
US9488989B2 · kind B2 · utility
0Cited by
24References
23Claims
0Family size
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Key dates
| Filing date | Jun 5, 2015 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jun 5, 2035 |
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.