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US 7,222,493 B2Granted
Compressor diagnostic system
AssigneeEmerson Climate Technologies, Inc.
InventorsNagaraj Jayanth, Hung Pham
Life of this patent
Estimating the term…
Abstract
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 specific fault cause. The intelligent device communicates with the logic circuitry and indicates the fault cause.
Claims23
A diagnostic system for a compressor system including a compressor and a motor protector, the system comprising:
- at least one sensor monitoring operating conditions of the compressor;
- logic circuitry associated with said at least one sensor and the motor protector, said logic circuitry operable to determine a trip frequency of the motor protector and identify a specific fault cause;
- and
- an intelligent device in communication with said logic circuitry and operable to indicate said fault cause.
1 more element
A method comprising:
- sensing at least one operating condition of a compressor;
- analyzing said operating condition;
- determining a trip frequency of a motor protector;
- identifying a compressor fault cause based on said operating condition and said trip frequency;
- and
- communicating said fault cause to an intelligent device.
3 more elements
Dependencies are inferred from the claim text.