| 摘要 |
<p>Reciprocating compressors for the oil and gas industry with a timing valve and related methods are provided. A reciprocating compressor 100 has a chamber 110, a timing valve 150, an actuator 160 and a controller 170. A fluid entering the chamber 110 via a suction valve 130 is compressed inside the chamber, and evacuated from the chamber via a discharge valve 140. The timing valve is located between the chamber and a fluid volume at a relief pressure that is lower than a pressure in the chamber when the timing valve is opened. The actuator is configured to actuate the timing valve. The controller is configured to control the actuator such that to open the timing valve during an expansion phase of the compression cycle, and to close the timing valve when the relief pressure becomes equal to the pressure in the chamber or when the suction valve is opened.</p> |
