US 12,253,279 B1
Air conditioner with selectively activated coil segments for increased dehumidification and efficiency
Michael Kenneth West, Melbourne, FL (US)
Assigned to Advantek Consulting Engineering Inc., Melbourne, FL (US)
Filed by Advantek Consulting Engineering, Inc., Melbourne, FL (US)
Filed on Feb. 17, 2021, as Appl. No. 17/178,020.
Claims priority of provisional application 62/978,470, filed on Feb. 19, 2020.
Int. Cl. F24F 3/14 (2006.01); F24F 1/028 (2019.01); F24F 3/147 (2006.01); F24F 110/10 (2018.01); F24F 110/20 (2018.01); F25B 43/00 (2006.01)
CPC F24F 3/1405 (2013.01) [F24F 1/028 (2019.02); F25B 43/006 (2013.01); F24F 3/147 (2013.01); F24F 2110/10 (2018.01); F24F 2110/20 (2018.01)] 10 Claims
OG exemplary drawing
 
1. An air conditioning system with adjustable cooling and heating and humidity control for a controlled space, consisting of:
a compressor;
a condenser connected to the compressor to provide a liquid refrigerant flow;
a controllable segmented heat-exchanger for cooling airflow where coil segments are stacked and parallel with each other, the controllable segmented heat-exchanger coil includes separate valves for controlling each of the segments according to sensed temperature and humidity levels;
a controller for controlling relative flow of refrigerant to the coil segments;
a liquid-suction heat-exchanger separator for cooling of a first refrigerant flow from the condenser, and for vaporizing by heating of a second refrigerant flow from the segmented heat-exchanger; where the liquid-suction heat-exchanger separator includes a vessel with a hollow coil tube spiraled between a top and bottom of the vessel, wherein the first refrigerant flow is passed through the hollow spiraled coil tube to subcool it, and the second refrigerant flow is passed around the hollow tube spiraled coil to heat and vaporize it;
a sensor at a vapor outlet of the liquid-suction heat-exchanger separator for sensing at least one of pressure and temperature so that flow rate, and thus the pressure, is reduced when refrigerant flow is not sufficiently superheated, and the flow rate is increased as the superheat becomes adequate, the sensor selected from a group consisting of a temperature sensor, a pressure sensor and a pressure and temperature sensor; and
an electronic liquid level sensor attached to the liquid-suction heat-exchanger separator for controlling an expansion device so said vessel is adequately filled with liquid.