Refrigeration system including a rotary expansible chamber device having adjustable working-fluid ports

A refrigeration system, comprising:

• a first rotary expansible chamber device having a first input port, a first output port, and a first port-adjustment mechanism designed and configured to controllably adjust a size or location, or both, of at least one of said first input port and said first output port;
• a second rotary expansible chamber device having a second input port and a second output port, and a second port-adjustment mechanism designed and configured to controllably adjust at least one of said second input port and said second output port, said first rotary expansible chamber device mechanically coupled to said second rotary expansible chamber device;
• and
• first and second heat exchangers, said first heat exchanger fluidly coupled to said first output port and said second input port and said second heat exchanger fluidly coupled to said second output port and said first input port;
• wherein said system is configured to operate as a closed-loop refrigeration cycle with a compressible working fluid, wherein both of said first and second rotary expansible chamber devices have a group of operating parameters consisting of (1) a mass flow rate of the working fluid (2) a temperature differential across said first or second rotary expansible chamber device caused by a change in volume of said working fluid in said first or second rotary expansible chamber device, and (3) a rotation rate of said first or second rotary expansible chamber device, wherein both of said first and second rotary expansible chamber devices are designed and configured to control all of the parameters in said group of operating parameters independently of all other parameters in said group by adjusting said first and second port-adjustment mechanisms.