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公开(公告)号:US20230065792A1
公开(公告)日:2023-03-02
申请号:US17792911
申请日:2021-01-18
发明人: Edson Correa MIGUEL , Andrey HENSE , Filipe LONGARETE , Mauricio Pereira TADA , Emilio Rodrigues HULSE
IPC分类号: F04B39/02
摘要: The present invention relates to a lubricating oil transport system in a compressor, in which:
the rotating shaft (3) has at least one concavity (35) that extends over part of the rotating surface (33) in contact with the internal surface (11) of the rotor (1) and at least one restrictor hole (34) that communicates with the internal region of the rotating shaft (3) and with the concavity (35);
the rotor (1) comprises a circumferential channel (12) and at least one radial channel (13) extending through the inner wall (11) of the rotor (1);
the radial channel (13) is arranged around the circumferential channel (12);
said circumferential channel (12) and the radial channel (13) communicating with the concavity (35);
the circumferential channel (12), the radial channel (13) and the concavity (35) transport oil for cooling the upper part of the rotor (1) and the stator (2).-
公开(公告)号:US20220349636A1
公开(公告)日:2022-11-03
申请号:US17619854
申请日:2020-06-17
摘要: The present invention relates to a system and method for operational acoustic optimization of a variable speed compressor (2) comprising a synchronous motor (6), a frequency inverter (3) and a control block (5), such optimization being carried out by modifying the switching frequency of the supply signal (9) of the motor (6) contained in the compressor (2), via a control block (5), only during the aligmnent phase of the motor (6), thus, not impairing the performance of the compressor (2), the thermal management of the inverter (3) and the acoustic performance of the system.
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