Valve assembly
US8910653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2012 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Feb 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7769
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve assembly is provided and includes a poppet disposed to regulate a pressure of a fluid flowing through a pathway defined between the poppet and a valve body, a drive element configured to modulate a pressure of a servo fluid to thereby control a position of the poppet relative to the valve body and an actuator body coupled to the poppet and configured to deliver a supply fluid to the drive element from a first cavity defined between the poppet and the actuator body and to deliver the servo fluid from the drive element to a second cavity defined between the actuator body and the poppet. The poppet defines a filter through which fluid flows from the pathway into the first cavity as the supply fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.