摘要 |
<p>A process for supplying compressed gas in varying quantities to a using system, which comprises sequentially compressing gas in a rotary compressor followed by reciprocating compressor, said reciprocating compressor being operated at a substantially constant speed, and varying the operation of the rotary compressor so as to vary the discharge pressure of the rotary compressor and thus to vary the quantity of gas supplied by the reciprocating compressor.</p> |