Fluid control valve device
US7363941B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2004 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Sep 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87981
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Certain embodiments of a fluid control valve include one or more ceramic components that operate substantially free of tensile stress concentrations along the control surfaces. In some embodiments, a fluid control valve includes a ceramic plug having a set of longitudinal grooves milled in the cylindrical surface of the plug to define control surfaces. The plug is disposed in an internal longitudinal cavity of the valve body such that the fluid flows over the plug's control surfaces in a direction substantially parallel to the control surfaces. The ceramic plug and other ceramic components may be manufactured using relatively simple machining techniques to reduce the overall production costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.