Pressure-balanced fluid pressure regulators
US9086702B2 · kind B2 · utility
7Cited by
19References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2011 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7904
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Pressure-balanced fluid pressure regulators are described. An example fluid regulator includes a fluid flow control member disposed within a fluid flow passageway of a valve body and moves relative to a seat ring to modulate fluid flow through the fluid flow passageway. A valve stem couples the fluid flow control member to an actuator. The valve stem has a pathway to allow fluid from an inlet of the fluid flow passageway to flow across the flow control member between a first side of the flow control member and a second side of the flow control member opposite the first side to pressure-balance the fluid flow control member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.