Title:
REFRIGERATION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/156047
Kind Code:
A1
Abstract:
Refrigeration device comprising a working circuit (10) of working fluid forming a cycle comprising a mechanism (2, 3) for compression, cooling, expansion and heating, an electric motor (11) driving in rotation a shaft (15) which carries a compressor wheel (2), an electronic controller (12) configured to receive a signal (13) demanding a defined cooling power (P) and, in response, to control the speed of rotation (V) of the motor (11), the electronic controller (12) being configured to limit the maximum operating speed (Vmf) of the motor (11) to a value less than or equal to its maximum design speed (Vmc), in nominal operation, the electronic controller (12) fixing the maximum operating speed (Vmf) of the motor at the speed of rotation that supplies the cold power (P), and regulating the speed of rotation (V) of the motor in accordance with the demand for cold power, without exceeding the maximum operating speed (Vmf).
Inventors:
LANDE SYLVAIN (FR)
Application Number:
PCT/EP2022/086870
Publication Date:
August 24, 2023
Filing Date:
December 20, 2022
Export Citation:
Assignee:
AIR LIQUIDE (FR)
International Classes:
F25B9/00; F25B1/053; F25B9/06; F25B25/00; F25B40/00; F25B49/02
Domestic Patent References:
| WO2021023428A1 | 2021-02-11 | |||
| WO2013154185A1 | 2013-10-17 |
Foreign References:
| CN112484330A | 2021-03-12 |
Attorney, Agent or Firm:
DE CUENCA, Emmanuel (FR)
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