Suction valve, For a linear reciprocating motion by the piston as well as before and after the movement corresponding to the open / Close operation, Inhalation of low- Pressure refrigerant; Valve plate, Connected with the suction valve, Valve plate including: Intake, For piston movement through the inhalation of low- Pressure refrigerant; Outfall for discharge through piston high- Pressure refrigerant; And the groove part, Which has a number of cavities, To around the suction or discharge port of the external;
Discharge valve with the valve plate connected to before and after the campaign for the adoption of the piston and with the reciprocating motion of the corresponding open / Close operation, High- Pressure refrigerant emissions; And end caps, With the discharge valve connected to cover include: Suction tube, Set with the valve plate suction corresponding position;
As well as the discharge pipes, Which is set with the discharge valve plate corresponds to the position. Cavity formed by a number of grooves can from the valve plate and the suction valve and discharge valve between the collisions that have relatively wide bandwidth and amplitude of vibration and noise to be attenuated.