TRANSLO-ROTATING ACTUATED ROTARY VALVES FOR RECIPROCATING COMPRESSORS AND RELATED METHODS

摘要

An actuated rotary valves for reciprocating compressors used in oil and gas industry, the valve including a stator with a stator opening, a rotor with a rotor opening, and an actuation mechanism. The actuation mechanism 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.

主权项

1. A rotary valve useable in a reciprocating compressor for oil and gas industry, the rotary valve comprising:
a stator comprising a stator opening; a rotor comprising a rotor opening; and an actuation mechanism configured to receive a rotation motion and to actuate the rotor to perform first a translation moving away from the stator and then a rotation, the actuation mechanism comprising:
an outer shaft configured to receive a rotation motion; andan inner shaft located inside the outer shaft and configured to rotate the rotor,wherein the outer shaft rotates a predetermined angular displacement while pushing the rotor away from the stator, before engaging the inner shaft to rotate together with the rotor.