Regulating device
US10215291B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 2017 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | May 15, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7791
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A regulating device may include a housing that defines an inlet chamber and an outlet chamber, with a flow restriction seat between the inlet chamber and the outlet chamber. A flow restriction valve is movable relative to the flow restriction seat to adjust the flow between the inlet chamber and the outlet chamber of the regulating device. A servo valve having a servo chamber may be used to adjust the position of the flow restriction valve. The servo chamber may be fluidly coupled to the inlet chamber though a fixed flow restriction and to the outlet chamber though an adjustable flow restriction. A stepper motor may be used to adjust the servo valve to adjust the adjustable flow restriction between the servo chamber and the outlet chamber. This causes a change of the servo pressure, which moves the flow restriction valve and adjusts the flow of the regulating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.