Invention Grant
- Patent Title: Protection and diagnostic module for a refrigeration system
- Patent Title (中): 制冷系统的保护和诊断模块
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Application No.: US11776879Application Date: 2007-07-12
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Publication No.: US08590325B2Publication Date: 2013-11-26
- Inventor: Hung M. Pham
- Applicant: Hung M. Pham
- Applicant Address: US OH Sidney
- Assignee: Emerson Climate Technologies, Inc.
- Current Assignee: Emerson Climate Technologies, Inc.
- Current Assignee Address: US OH Sidney
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: G01K13/00
- IPC: G01K13/00 ; F25B49/00
Abstract:
A system includes a compressor and a compressor motor functioning in a refrigeration circuit. A sensor produces a signal indicative of one of current and power drawn by the motor and a liquid-line temperature sensor provides a signal indicative of a temperature of liquid circulating within the refrigeration circuit. Processing circuitry processes the current or power signal to determine a condenser temperature of the refrigeration circuit and a subcooling value of the refrigeration circuit from the condenser temperature and the liquid-line temperature signal.
Public/Granted literature
- US20080209925A1 PROTECTION AND DIAGNOSTIC MODULE FOR A REFRIGERATION SYSTEM Public/Granted day:2008-09-04
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