Accuracy of control valves using a short-stroke position converter
US11454334B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2021 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Apr 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8242
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A position transfer device is configured for use on a control valve. These configurations may convert a linear position of a closure member on the control valve to an angular position of magnets. A sensor in proximity to the magnets can generate a signal in response to the angular position. A valve positioner or controller can process the signal to identify the position of the closure member relative to a seat. In one implementation, the position transfer device includes a shaft that clamps onto a pin. This arrangement causes the pin to translate radially about an axis that is perpendicular to the shaft. The magnets move in response to the pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.