Patent ID: 8678782

Claim:
An assembly comprising: a hermetic shell; a linear compressor within said hermetic shell, said linear compressor comprising a piston part reciprocating within a cylinder part along an axis; and a suspension spring formed of a substantially planar hub portion connected to the cylinder part, said hub portion defining a perimeter, a single spiral arm having first and second opposite ends, said first end of said spiral arm connected to said hub portion, said spiral arm extending from said first end and around said perimeter of said huh portion and extending in the same plane as said huh portion, said spiral arm extending greater than one complete pass around said perimeter of said hub portion, and an attachment portion provided at said second end of said spiral arm, said attachment portion is fixed to said hermetic shell, said single spiral arm forming the only connection between said hub portion and said attachment portion, said suspension spring having a stiffness in the direction of the axis of reciprocation of said linear compressor lower than a stiffness in a direction transverse to the axis of reciprocation, so that said suspension spring has a lowest fundamental frequency below 50 Hz.