(under the class definition) Subject matter in which the refrigeration cycle comprises (1) confining a constant mass
of a gas in a chamber whose volume varies from a maximum to a minimum, (2) compressing it, (3) cooling it, and (4) expanding it; the gas remaining as such throughout the cycle; the action of stages (2), and (3) being alternate with heat storage and return (regeneration) between these stages.
SEE OR SEARCH CLASS
60, Power Plants,
516+, for a structurally similar heat operated motor.
