Linear compressor having an anti-collision device

A linear compressor having a cylinder, a cylinder head assembled with the cylinder and having at least one valve, a piston received in said cylinder, and a drive unit reciprocating said piston, the linear compressor comprising:

• an anti-collision device preventing the piston from moving past an upper dead center position of the piston to prevent the piston from colliding with the cylinder head and the valve, wherein said anti-collision device comprises:
• a first tapered surface formed on a skirt part of the cylinder such that a diameter of the first tapered surface is reduced in a direction toward the cylinder head;
• and
• a second tapered surface formed on said piston so as to correspond to the first tapered surface of the cylinder.

A linear compressor having a cylinder, a cylinder head assembled with the cylinder and having at least one valve, a piston received in said cylinder, and a drive unit reciprocating said piston, the linear compressor comprising:

• an anti-collision device preventing the piston from moving past an upper dead center position of the piston to prevent the piston from colliding with the cylinder head and the valve, wherein said anti-collision device comprises:
• a spacer extending from an end of said cylinder;
• an elastic member mounted to said spacer with a central opening having a predetermined size;
• a shock absorbing member set in said central opening of the elastic member and having a central hole, the shock absorbing member tapering in a direction toward the cylinder head forming a first tapered surface;
• and
• a movable member reciprocating through the central hole, attached to the piston, fitted inside and contacting the shock absorbing member when the piston is positioned at an upper dead center position and having a second tapered surface substantially corresponding to the first tapered surface of the shock absorbing member.

A linear compressor having a cylinder, a cylinder head assembled with the cylinder and having at least one valve, a piston received in said cylinder, and a drive unit reciprocating said piston, the linear compressor comprising:

• an anti-collision device preventing the piston from moving past an upper dead center position of the piston to prevent the piston from colliding with the cylinder head and the valve, wherein said anti-collision device comprises:
• a spacer extending from an end of said cylinder,
• an elastic member mounted to said spacer with a central opening having a predetermined size;
• a shock absorbing member set in said central opening of the elastic member and having a central hole, the shock absorbing member tapering in a direction toward the cylinder head forming a first tapered surface;
• and
• a movable member reciprocating through the central opening and having a second tapered surface with a different tapering angle then the first tapered surface of the shock absorbing member, wherein both the first and second tapered surfaces are tapered in a same direction.