发明名称 |
VARIABLE CAPACITY SCREW COMPRESSOR AND METHOD |
摘要 |
A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed. A method for sizing at least two variable capacity screw compressors and a refrigeration chiller incorporating a variable capacity screw compressor are separately presented. |
申请公布号 |
WO2012012423(A2) |
申请公布日期 |
2012.01.26 |
申请号 |
WO2011US44532 |
申请日期 |
2011.07.19 |
申请人 |
TRANE INTERNATIONAL INC.;DORMAN, DENNIS R.;SAULS, JOHN R. |
发明人 |
DORMAN, DENNIS R.;SAULS, JOHN R. |
分类号 |
F04C18/16;F01C1/16;F04B17/03;F25B1/047 |
主分类号 |
F04C18/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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