Method for controlling a trim-adjustment mechanism for a centrifugal compressor
US10859097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Jan 5, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling an inlet-adjustment mechanism in an air inlet for a compressor so as to switch the mechanism in a binary fashion between open and closed positions for adjusting a flow area of the inlet. The method includes identifying a threshold line on a compressor map of pressure ratio versus corrected flow rate for the compressor, at which the inlet-adjustment mechanism is switched from one of its positions to the other. A fixed switch band straddling the threshold line can be used for determining when to initiate the switch of positions so as to time the switch to coincide with the operating point reaching the threshold line. Alternatively, a time to reach the threshold line can be instantaneously computed and compared to the actuator/mechanism response time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.