PISTON CRANK MECHANISM, AND STIRLING EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To enhance the mechanical efficiency of the piston equipment such as the stirling equipment. SOLUTION: Paired pistons are disposed so as to be symmetric with respect to a common eccentric core rotating shaft 22a connecting both the con'rods 20a and 21a of the pistons in a state that those con'rods 20a and 21a are lined up in straight line, and outward coupling member 23a is mounted to the eccentric core rotating shaft 22a in an outward coupled condition so as to be freely and relatively rotated. The respective con'rods 20a and 21a of the paired pistons are connected with the outward coupling member 23a by way of a linear bearing 25 guiding the linear relative movement of the outward coupling member 23a and the con'rods 20a and 21a in the direction parpendicularly intersected with the axial core direction of those con'rods 20a and 21a, and with the rotating axial core direction of the eccentric core rotating shaft 22a.