Compressor diagnostic system

A refrigeration/air conditioning system includes a compressor (10) having a motor protector (54) which stops the compressor's motor when it senses an out of specification condition. A diagnostic system (100) of the refrigeration/ air conditioning system monitors the status of the motor protecto...

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Bibliographic Details
Main Author JAYANTH NAGARAJ,MILLET HANK E
Format Patent
LanguageEnglish
Published 23.08.2006
Subjects
BLASTING
CHAMBERS PROVIDED WITH MANIPULATION DEVICES
COMBINED HEATING AND REFRIGERATION SYSTEMS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
HAND TOOLS
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANIPULATORS
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
TRANSPORTING
WEAPONS
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Summary:A refrigeration/air conditioning system includes a compressor (10) having a motor protector (54) which stops the compressor's motor when it senses an out of specification condition. A diagnostic system (100) of the refrigeration/ air conditioning system monitors the status of the motor protector (54). The diagnostic system (100) includes logic circuitry (104) that diagnoses the type of problem the compressor (10) or the system is having based upon the running times and status of the motor in conjunction with the times and status of the tripped' motor protector (54): The diagnostic system (100) also includes either a discharge pressure sensor (330) or a condenser temperature sensor (332), an ambient air sensor (334) and a voltage sensor (402,404). The sensors (330,332,334,402,404) provide information to the diagnostic system (100) which enables it to determine where a system fault has occurred.
Bibliography:Application Number: CN200610059645