Diagnostic system
First Claim
1. A compressor comprising a shell, a compression mechanism, a motor, and a diagnostic system for determining non-severe fault conditions where continued operation of the compressor is permitted by said diagnostic system and severe fault conditions where operation of the compressor is stopped by said diagnostic system, said diagnostic system including a processor and a memory and operable to predict said severe fault conditions before occurrence of said severe fault conditions based on an order of a sequence of historical fault events and a combination of the types of said historical fault events, said historical fault events being determined based on compressor run time and at least one of a state of a motor protector, a low-pressure cutout switch, and a high-pressure cutout switch.
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Accused Products
Abstract
A compressor is provided and may include a shell, a compression mechanism, a motor, and a diagnostic system that determines a system condition. The diagnostic system may include a processor and a memory and may predict a severity level of the system condition based on at least one of a sequence of historical-fault events and a combination of the types of the historical-fault events.
29 Citations
29 Claims
- 1. A compressor comprising a shell, a compression mechanism, a motor, and a diagnostic system for determining non-severe fault conditions where continued operation of the compressor is permitted by said diagnostic system and severe fault conditions where operation of the compressor is stopped by said diagnostic system, said diagnostic system including a processor and a memory and operable to predict said severe fault conditions before occurrence of said severe fault conditions based on an order of a sequence of historical fault events and a combination of the types of said historical fault events, said historical fault events being determined based on compressor run time and at least one of a state of a motor protector, a low-pressure cutout switch, and a high-pressure cutout switch.
- 16. A compressor comprising a shell, a compression mechanism, a motor, and a diagnostic system for determining a system condition, said diagnostic system including a processor and a memory and operable to determine non-severe fault conditions where continued operation of the compressor is permitted by said diagnostic system and severe fault conditions where operation of the compressor is stopped by said diagnostic system, said diagnostic system operable to predict said severe fault conditions before occurrence of said severe fault conditions based on an order of a sequence of historical fault events that are determined based on compressor run time and at least one of a state of a motor protector, a low-pressure cutout switch, and a high-pressure cutout switch and the rate of progression over time of said historical fault events within an order sequence of said historical fault events.
Specification