Abstract: A suction valve for a small hermetic compressor of the type presenting a compression cylinder (1), which has an end closed by a valve plate (2) having a discharge orifice (3) and a suction orifice (4), said valve comprising a flexible vane (10) which is shaped in a way to present: a fixation end portion (11) to be affixed to the valve plate (2); a bending median portion (12) provided with a median opening (13) aligned with a discharge orifice (3); and a sealing end portion (14) operatively associated with the suction orifice (4), the distance between an external edge (15) of the flexible vane (10) and an adjacent internal edge portion (16) of the contour of the median opening (13) diminishing, progressively, along a higher bending region (17) of the flexible vane (10) from a maximum value, close to the end fixation portion (11) to a minimum value, close to the boundary of the higher bending region (17).

Abstract: A suction muffler for a reciprocating hermetic compressor mounted inside a hermetic shell (1), said suction muffler comprising a hollow body (20) defining at least one acoustic chamber and provided with a gas inlet (22) connected to a suction line (9) by means of a tubular connector, and with a gas outlet (32) connected to a suction valve (8b) of the compressor, said equalizing chamber (60) being provided, on one side, with an opening (60a) to the interior of the hermetic shell (1) and, on the other side, with a fluid communication (61) with the acoustic chamber, said equalizing chamber (60) being dimensioned to minimize, simultaneously, the noises of the gas pulses inside the suction muffler, the mixture of said gas with that contained inside the hermetic shell (1), and the pressure differential between the interior of the latter and the suction line (9), upon operation of the compressor after a stop period.