Multichannel heat exchanger

A heat exchanger comprising:

• at least one air moving device;
• at least two fluid flow paths, each fluid flow path of the at least two fluid flow paths being positioned to enable the fluid flowing along the fluid flow path to be cooled by a flow of air from the at least one air moving device, each of the at least two fluid flow paths having an inlet and an outlet and at least one flow path of the at least two flow paths having a lower air flow rate than the other flow paths of the at least two flow paths;
• and
• a flow regulator being positioned in the outlet of the at least one fluid flow path having a lower air flow rate, the flow regulator being operable to regulate the flow of fluid in the at least one fluid flow path having a lower air flow rate to achieve a substantially equal temperature of fluid flowing from the at least two fluid flow paths.

An HVAC&R system comprising:

• a compressor, a heat exchanger, an expansion valve and a multichannel heat exchanger connected in a closed refrigerant loop;
• the multichannel heat exchanger further comprising:
• an inlet manifold configured to receive discharge vapor refrigerant from the compressor, wherein the inlet manifold is divided into discrete sections and wherein each section further includes an inlet port;
• at least one outlet manifold for discharging refrigerant fluid from the multichannel heat exchanger, wherein the at least one outlet manifold is divided into discrete sections corresponding to the discrete sections formed in the inlet manifold, and wherein each section further includes an outlet port;
• a plurality of conduits connecting the inlet manifold to the at least one outlet manifold, wherein each of the plurality of conduits further includes a plurality of multichannels formed therealong;
• and
• a pressure reducing means connected to or formed integrally with the at least one outlet manifold configured to regulate the flow of refrigerant fluid through the at least one outlet manifold in relation to the flow of discharge vapor through the multichannel heat exchanger.

A heat exchanger comprising:

• an inlet manifold configured to receive vapor refrigerant from a compressor, the inlet manifold being divided into a plurality of discrete input sections and each input section of the plurality of input sections having an inlet port;
• an outlet manifold configured to discharge refrigerant fluid from the heat exchanger, the outlet manifold being divided into a plurality of discrete output sections, each output section of the plurality of output sections corresponding to an input section of the plurality of input sections and having an outlet port;
• a plurality of circuits connecting the inlet manifold to the outlet manifold, each circuit of the plurality of circuits connecting an input section of the plurality of input sections to an output section of the plurality of output sections, each circuit of the plurality of circuits comprises a plurality of multichannel tubes;
• and
• a device connected to or formed integrally with an output section of the plurality of output sections, the device being operable to regulate the flow of refrigerant fluid through the corresponding circuit of the plurality of circuits to obtain a differential pressure drop in the corresponding circuit relative to the other circuits of the plurality of circuits, the differential pressure drop corresponding to a difference in velocity of airflow through the corresponding circuit relative to the velocity of airflow through the other circuits of the plurality of circuits.