Patent ID: 6397623
Filing Date: 2002-06-04
Classification: F25B

Abstract:
A cooling device, comprising: one or a plurality of compression cylinders each accommodating therein a compression piston so as to allow reciprocating motion thereof; a plurality of expansion cylinders each accommodating therein an expansion piston so as to allow reciprocating motion thereof; one crank shaft or a plurality of crank shafts rotating in an interlocked manner with the same cycle; a first crank mechanism for coupling the respective compression pistons so as to allow reciprocating motion thereof from the crank shaft via a crank pin; a second crank mechanism for coupling the respective expansion pistons so as to allow reciprocating motion thereof from the crank shaft via a crank pin with a predetermined phase difference with respect to one another; a driving device for rotating the respective crank shafts; a compressed air supply passage for communicating a discharge port of each compression cylinder with an intake port of each expansion cylinder, the discharge port being provided for discharging a compressed air which is introduced through an intake port of the compression cylinder and compressed within the compression cylinder; a primary cooler provided along the compressed air supply passage; and a cold air discharge manifold for communicating together a plurality of discharge ports for discharging the air whose temperature is reduced through adiabatic expansion within the respective expansion cylinders to the outside.