TRANSLO-ROTATING ACTUATED ROTATORY VALVES FOR RECIPROCATING COMPRESSORS RELATED METHODS.

摘要

Actuated rotary valves for reciprocating compressors used in oil and gas industry and related methods are provided. A rotary valve 300 has a stator 310 with a stator opening 315, a rotor 320 with a rotor opening 325 and an actuation mechanism. The actuation mechanism 340 is configured to receive a rotation motion and to actuate the rotor to perform first an axial translation moving away from the stator and then a rotation. The actuation mechanism includes an outer shaft configured to receive the rotation motion, and an inner shaft inside the outer shaft and configured to rotate the rotor. The outer shaft is configured to rotate a predetermined angular displacement while pushing the rotor away from the stator before engaging the inner shaft to rotate together with the rotor.