US 2004/0163388 A1 · Stirling cycle engine

Abstract

The Stirling cycle engine includes: a casing having a cylindrical shape; a cylinder for sidably inserting a displacer and a piston into a part adjacent to one end and another part adjacent to an other end thereof respectively,_the cylinder being coaxially placed inside the casing; a driving mechanism provided around an outer peripheral surface of the cylinder so as to force the piston to reciprocate inside the cylinder; a mount for fixing the driving mechanism to the outer peripheral surface of the cylinder, the mount being integrally formed with the cylinder; a flat spring having a center portion thereof connected to the piston; and a plurality of connecting arms, one ends thereof being integrally formed with the mount and the other ends thereof being connected to a peripheral portion of the flat spring. Since the cylinder, the mounts and the connecting arms are integrally formed with one another, precisions or accuracies such as alignment accuracy of the displacer or the piston relative to the cylinder, can be improved.

Claims11

Dependent claims

A Stirling cycle engine comprising:

a casing having cylindrical shape;
a cylinder made from metal, said cylinder being coaxially inserted into said casing;
a displacer slidably inserted into the 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 an 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, one 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 with one another.

7 more elements

A Stirling cycle engine comprising:

a cylinder for slidably inserting a piston and a displacer;
a casing accommodating said cylinder, said casing having a cylindrical portion being communicated with said cylinder, said cylindrical portion allowing said displacer to freely slide therein;
a plurality of mounts for fixing said cylinder within said casing and supporting a driving mechanism, said driving mechanism forcing said piston to reciprocate;
a plurality of flat springs having center portions thereof connected to said piston and said displacer via a connection means;
and
a plurality of connecting arms, one ends thereof being fixed to one of said plurality of mounts and the other ends thereof being connected to peripheral portion of said plurality of flat springs, wherein
said cylinder, said plurality of mounts and said plurality of connecting arms are integrally formed with one another.

4 more elements

Dependencies are inferred from the claim text.

Stirling cycle engine

Life of this patent

Stirling cycle engine

Life of this patent

Abstract

Claims11