Patent ID: 6644943
Filing Date: 2003-11-11
Classification: F04B

Abstract:
A reciprocating compressor with a linear motor, comprising a cylinder (3); a pair of pistons (4) provided inside the cylinder (3) and axially aligned to each other; a linear motor driving the pistons (4) in, opposite directions; a suction valve (4b) provided in at least one of the pistons (4), controlling the gas admission to the inside of the cylinder (3); and a discharge valve (9) provided in order to control the discharge of the gas admitted inside the cylinder (3) said pistons (4) being provided, on its top face (4a), with a respective discharge valve (10), in order to control the axial discharge of the gas through said piston (4), characterized in that it comprises at least one discharge chamber (30) defined of a heat insulating material inside at least one of the pistons (4) and in selective fluid communication with the inside of the cylinder (3) through a respective discharge valve (10).