Abstract: Acoustic attenuating device for compressors which includes a hollow body having at least one input port, at least one output channel, at least one output port disposed in the at least one output channel, an intermediate body dividing the hollow body into two acoustic chambers, and a connection channel communicating the two acoustic chambers. Said connection channel includes two sub-channels, wherein one of the two sub-channels accommodates, at least partially, the output channel and the other one of the two sub-channels conforms fluid communication between the two acoustic chambers. The acoustic attenuating device further includes at least one blocker disposed between the outer side of the output channel and the inner side of the sub-channel which accommodates the output channel, wherein said blocker is capable of precluding flow between the two acoustic chambers, thereby reducing the amount of lubricating oil which flows out from the compressor into the cooling system.

Abstract: Acoustic attenuating device for compressors which includes a hollow body having at least one input port, at least one output channel, at least one output port disposed in the at least one output channel, an intermediate body dividing the hollow body into two acoustic chambers, and a connection channel communicating the two acoustic chambers. Said connection channel includes two sub-channels, wherein one of the two sub-channels accommodates, at least partially, the output channel and the other one of the two sub-channels conforms fluid communication between the two acoustic chambers. The acoustic attenuating device further includes at least one blocker disposed between the outer side of the output channel and the inner side of the sub-channel which accommodates the output channel, wherein said blocker is capable of precluding flow between the two acoustic chambers, thereby reducing the amount of lubricating oil which flows out from the compressor into the cooling system.

Abstract: The compressor comprises a valve plate, to be affixed to a compressor block, and a suction valve (V) formed by a spacer body, having a median opening and a flexible vane, which has a fixing end portion provided with a contour, symmetrical or asymmetrical, in relation to a longitudinal axis (X) of the flexible vane and which presents peripheral edge portions to be seated against respective inner edge portions of the median opening for restricting coplanar, linear and angular displacements of the flexible vane in relation to the spacer body upon seating the flexible vane against the valve plate, in the interior of the median opening.

Abstract: The compressor comprises a valve plate, to be affixed to a compressor block, and a suction valve (V) formed by a spacer body, having a median opening and a flexible vane, which has a fixing end portion provided with a contour, symmetrical or asymmetrical, in relation to a longitudinal axis (X) of the flexible vane and which presents peripheral edge portions to be seated against respective inner edge portions of the median opening for restricting coplanar, linear and angular displacements of the flexible vane in relation to the spacer body upon seating the flexible vane against the valve plate, in the interior of the median opening.