Temperature-control system with rotary heat exchangers

A temperature-control system for ventilating a room equipped with means for maintaining the air therein at a temperature differing substantially from that of the outer atmosphere, comprising:

• stationary support means including a housing divided into a first compartment and a second compartment, said first compartment having a first inlet open to the outer atmosphere and a first outlet open to said room, said second compartment having a second inlet open to said room and a second outlet open to the outer atmosphere;
• a rotary structure in said housing comprising a first and a second heat exchanger mounted for joint rotation about a common axis in said first and said second compartment, respectively, said first heat exchanger being a radial-flow blower driving an incoming airstream from said first inlet to said first outlet, said second heat exchanger being a radial-flow blower driving an outgoing airstream from said second inlet to said second outlet;
• drive means for rotating said structure about said axis;
• hermetically sealed conduit means in said structure interlinking said heat exchangers and forming at least one closed path for a heat-carrier medium abstracting heat from the warmer one of said airstreams and giving off heat to the colder one of said airstreams;
• and
• forced-circulation means in said path for driving said medium therethrough under a pressure maintaining a continuous uninterrupted flow of said medium at substantially uniform speed between said heat exchangers.