APPARATUSES AND METHODS FOR ACTUATING VALVES.

摘要

Apparatuses and methods overcoming the technical challenges in actuating valves of reciprocating compressors used in oil and gas industry are provided. A valve assembly (400) includes (1) an actuator (410) configured to provide a displacement, (2) a shaft (430) configured to transmit the displacement from the actuator to a valve closing member of a valve of the reciprocating compressor, and (3) a displacement transmission mechanism connected to the shaft, and configured to amplify the displacement and/or a force associated with the displacement provided by the actuator to actuate the valve closing member of the valve.