Reciprocating compressor in which gas is supplied to each of opposite ends of a suction chamber extending around a discharge chamber on a plane

摘要

In a reciprocating compressor in which a suction chamber (7) extends around a discharge chamber (6) parallel to suction, a discharge gas conducting passage (6c) is connected to the discharge chamber and is adjacent to a suction gas inlet passage (7a) in a predetermined direction orthogonal to the plane. The suction gas inlet passage communicates with each of the first and second opposite ends of the suction chamber so that gas is supplied into the suction chamber through each of the first and second opposite ends thereof. A plurality of compression elements are arranged along the suction chamber and connected to the discharge chamber and the suction chamber. Each of the compression elements have a piston (16) which reciprocates to introduce the gas from the suction chamber, to compress the gas, and then to discharge the gas into the discharge chamber.