Protection and diagnostic module for a refrigeration system

A refrigeration circuit, subcooling technology, applied in the field of diagnostic systems, can solve problems such as the inability of traditional protection systems to accurately display specific faults

Active Publication Date: 2009-08-12
EMERSON CLIMATE TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, while conventional protection devices adequately protect the compressor and the systems upon which it depends, traditional protection systems cannot accurately indicate specific faults and often require a large number of sensors to diagnose the compressor and / or the system

Method used

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  • Protection and diagnostic module for a refrigeration system
  • Protection and diagnostic module for a refrigeration system
  • Protection and diagnostic module for a refrigeration system

Examples

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Embodiment Construction

[0035] The ensuing description is merely exemplary in nature and is not intended to limit the disclosure, application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0036] Referring to the drawings, a compressor 10 is shown incorporated in a refrigeration system 12 . The protection and control system 14 is connected with the compressor 10 and the refrigeration system 12 to monitor and diagnose the compressor 10 and the refrigeration system 12 . Protection and control system 14 uses a series of sensors to determine non-measured operating parameters of compressor 10 and / or refrigeration system 12 . Protection and control system 14 uses non-measured operating parameters along with measured operating parameters from sensors to diagnose and protect compressor 10 and / or refrigeration system 12 .

[0037] specific reference figure 1 and 2 , the compressor 10 is shown to include a...

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PUM

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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.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 60 / 831,755, filed July 19, 2006, and US Utility Application No. 11 / 776,879, filed July 12, 2007. The disclosures of the aforementioned applications are hereby incorporated by reference. technical field [0003] The present invention relates to compressors, and more particularly to a diagnostic system for use with compressors. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0005] Compressors are used in a variety of industrial and residential applications to circulate a refrigerant within a refrigerator, heat pump, HVAC or chiller system (commonly referred to as a "refrigeration system") to provide the desired heating and / or cooling . In any of the aforementioned applications, the compressor should provide consistent and efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/00F25B13/00F25B1/00
CPCF25B2700/21163F25B2700/2106F25B2700/21152F25B2500/19F25B2700/151F25B49/005F25B1/00F25B13/00F25B49/00F25B49/022
Inventor 亨格·M·范
Owner EMERSON CLIMATE TECH INC
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