System and method for diagnosing a reciprocating compressor

摘要

Methods and systems are provided for a compressor including a crankcase. A condition of the compressor may be diagnosed based on a valve leak condition of the compressor based on piston motion within the crankcase. Once a diagnosis is made, appropriate remedial action can be taken to minimize severity.

主权项

1. A method for a reciprocating compressor, comprising:
detecting a leak condition of a valve via recognition of displacement of an associated piston, which is caused by air flow through the valve during a time period in which no piston motion is expected; and closing an unloader valve during the time period to facilitate a pressurized state within the reciprocating compressor, the unloader valve forces open an intake valve to one or more cylinders in the reciprocating compressor.