Patent ID: 6857267

Claim:
A Stirling cycle engine comprising: a case having a cylindrical shape; a cylinder made from metal, said cylinder being coaxially inserted into said casing; a displacer slidably inserted into an inside of said cylinder adjacent to a distal end thereof; a piston slidably inserted into the inside of said cylinder adjacent to a proximal end thereof; a driving mechanism for reciprocating said piston, said driving mechanism being provided around an outer periphery of said cylinder adjacent to the proximal end thereof; a plurality of mounts for fixing said cylinder within said casing and supporting said driving mechanism, said plurality of mounts being provided on the outer periphery of said cylinder between the proximal and the distal ends thereof; a first flat spring having a center portion thereof connected to said piston; and a plurality of connecting arms, first ends thereof being connected to one of said mounts and the other ends thereof being attached to said first flat spring; wherein said cylinder, said plurality of mounts and said plurality of connecting arms are integrally formed into a single piece by casting.