Automated fault diagnosis method and system for...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant

Reexamination Certificate

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C073S035010

Reexamination Certificate

active

11537136

ABSTRACT:
The automated fault diagnostic system operates on engine-compressor sets with one vibration sensor per sub-group of engine cylinders and one sensor per compressor cylinder. Vibration signals linked to crankshaft phase angle windows (“VT”) mark various engine events and compressor events. In data-acquisition-learning mode, VT is stored for each engine and compressor event per operating load condition, statistical process control (SPC) theory identifies alarm threshold bands. Operator input-overrides are permitted. If no baseline data is stored, the system automatically enters the learn mode. To monitor, current VT are obtained and current load condition is matched to the earlier load set and alarms issue linking predetermined engine or compressor event to the over-under VT. Baseline data, SPC analysis, alarms and monitoring are set for crankcase flow, engine cylinder exhaust temperatures, ignition system diagnostic messages. Compressor performance alarms use suction and discharge temperatures and pressures.

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Dynalco RECIP-TRAP 3260 product spec, Jul. 2006.
Windrock, Inc. 6310 Analyzer and On-Guard monitor 3300 spec sheets, 14 pages, Sep. 11, 2006.
Dynalco RECIP-TRAP 3260 product spec, Jul. 2006.
Windrock, Inc. 6310 Analyzer and On-Guard monitor 3300 spec sheets, 14 pages, Sep. 11, 2006.

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