Compressor and valve assembly thereof for reducing pulsation and/or noise

A compressor comprising:

• a vacuum muffler configured to supply working fluid;
• a cylinder block having a cylinder therein;
• a cylinder head coupled to the cylinder block to seal the cylinder, having a head groove through which the working fluid flows;
• a valve assembly between the cylinder block and the cylinder head, including a valve plate configured to control the flow of the working fluid therein;
• and
• a discharge muffler supplied with the working fluid from the valve assembly wherein the valve plate comprises an inlet hole through which working fluid passes from the vacuum muffler, a first discharge hole through which the working fluid from the cylinder passes, a second discharge hole through which the working fluid from the first discharge hole passes and a passage extending to or surrounds at least a part of a periphery of the inlet hole through which the working fluid from the second discharge hole flows.