1
Hung M Pham: Compressor diagnostic and protection system. Emerson Climate Technologies, Harness Dickey & Pierce, August 19, 2008: US07412842 (90 worldwide citation)

A system includes a compressor, processing circuitry, a first sensor detecting high-side data indicative of an operating condition of a high-pressure side of the refrigeration circuit, and a second sensor detecting low-side data indicative of an operating condition of a low-pressure side of the refr ...


2
Nagaraj Jayanth: Remote data acquisition system and method. Emerson Climate Technologies, Harness Dickey & Pierce, February 13, 2007: US07174728 (87 worldwide citation)

A data acquisition system and method includes monitoring a cooling system having a refrigerant compressor, evaporator, and condenser, and employs a number of sensors to monitor various operating parameters of the system. A database stores predefined operating parameters for a plurality of cooling sy ...


3
Nagaraj Jayanth, Hung Pham: Compressor diagnostic system. Emerson Climate Technologies, Harness Dickey & Pierce, May 29, 2007: US07222493 (75 worldwide citation)

A system and method for diagnosing and protecting a compressor includes a sensor, logic circuitry, a motor protector and an intelligent device. The logic circuitry is associated with the sensor and the motor protector and operable to determine a trip frequency of the motor protector and identify a s ...


4
Hung M Pham, Wayne R Warner: Refrigeration system including thermoelectric module. Emerson Climate Technologies, Harness Dickey & Pierce, December 25, 2007: US07310953 (58 worldwide citation)

A refrigeration system for multi-temperature and single-temperature applications combines a refrigeration circuit and a single-phase fluid heat-transfer circuit in heat-conducting contact through a thermoelectric device. A vapor compression cycle provides a first stage of cooling and the thermoelect ...


5
Hung M Pham: Compressor configuration system and method. Emerson Climate Technologies, Harness Dickey & Pierce, December 2, 2008: US07458223 (52 worldwide citation)

A system and method including a compressor operable in a refrigeration circuit and including a motor, a current sensor detecting current drawn by the motor and providing a high-side condition signal, a discharge line temperature sensor detecting a discharge line temperature of the compressor and pro ...


6
Nagaraj Jayanth, Hung Pham: Compressor diagnostic system for communicating with an intelligent device. Emerson Climate Technologies, Harness Dickey & Pierce, January 1, 2008: US07313923 (49 worldwide citation)

A compressor includes a motor protector which stops the compressor motor when it senses an out of specification condition. A diagnostic system monitors the status of the motor protector and includes logic circuitry that diagnoses the type of problem the compressor or the system is having based upon ...


7
Nagaraj Jayanth, Hung Pham: Compressor diagnostic method. Emerson Climate Technologies, Harness Dickey & Pierce, January 16, 2007: US07162883 (48 worldwide citation)

A method includes determining base-line operating parameters for a compressor, generating a high-side signal indicative of high-side compressor operating conditions, generating a low-side signal indicative of low-side compressor operating conditions, and comparing the high-side and low-side signals ...


8
Nagaraj Jayanth: Remote data acquisition system and method. Emerson Climate Technologies, Harness Dickey & Pierce, August 19, 2008: US07412839 (47 worldwide citation)

An apparatus for diagnosing a cooling system includes a first sensor for sensing a first operating parameter, a second sensor for sensing a motor operating parameter, a controller in communication with the sensors for receiving a signal from each of the sensors, and a computer in communication with ...


9
Hung M Pham: Compressor diagnostic and protection system and method. Emerson Climate Technologies, Harness Dickey & Pierce, February 3, 2009: US07484376 (40 worldwide citation)

A system and method includes a compressor, a motor drivingly connected to the compressor, a current sensor detecting current supplied to the motor, a discharge line temperature sensor detecting discharge line temperature, and processing circuitry receiving current data from the current sensor and di ...


10
Nagaraj Jayanth: Compressor protection and diagnostic system. Emerson Climate Technologies, Harness Dickey & Pierce, February 17, 2009: US07491034 (39 worldwide citation)

A system includes a compressor having a shell and a motor disposed within the shell. A first sensor is provided for monitoring a discharge temperature of the compressor, a second sensor is provided for monitoring a temperature of the motor, and a third sensor is provided for monitoring at least one ...