Method for soft expulsion of a fluid from a compressor at start-up
US10385852B2 · kind B2 · utility
0Cited by
16References
12Claims
0Family size
Assignee
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Key dates
| Filing date | May 6, 2014 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/701
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for expulsion of a fluid inside a compressor at start-up including the steps: applying a first signal to the motor windings for a first duration of time to align the motor rotor to the initial position; applying a second signal to the motor windings to start rotation of the compressor shaft; applying a third signal to the motor windings for a second duration of time to hold the compressor shaft in place; and applying a fourth signal to the motor windings to accelerate the motor to an operational speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.