Piston for compressor

A piston for a compressor, wherein the compressor includes a cylinder configured to receive a refrigerant and is configured to compress and discharge the refrigerant in the cylinder, the piston comprising:

• a sliding portion that is disposed in the cylinder and that defines a suction space that receives the refrigerant;
• a head portion connected to the sliding portion and including a suction port that fluidly communicates with a compression space and the suction space, wherein the compression space is defined at a first side of the head portion, and wherein the suction space is defined at a second side of the head portion opposite to the first side of the head portion;
• a press-fit cap connected to the first side of the head portion, the press-fit cap including a suction hole that fluidly communicates with the suction port of the head portion;
• and
• a first elastic member disposed between the press-fit cap and the head portion, wherein the head portion, the press-fit cap, and the first elastic member define a gas layer.