US 11,719,445 B2
Air handler unit
Saurabh Kumar Sinha, Telangana (IN); Prasad Babu Lakshmipathy, Telangana (IN); Harshal Chaudhari, Telangana (IN); and Vinod Kumar Modugu, Telangana (IN)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Appl. No. 17/43,286
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed Apr. 3, 2019, PCT No. PCT/US2019/025557
§ 371(c)(1), (2) Date Sep. 29, 2020,
PCT Pub. No. WO2019/195402, PCT Pub. Date Oct. 10, 2019.
Claims priority of application No. 201811013081 (IN), filed on Apr. 5, 2018.
Prior Publication US 2021/0018185 A1, Jan. 21, 2021
Int. Cl. F24F 1/0007 (2019.01); F24F 11/80 (2018.01); F24F 11/70 (2018.01); F24F 3/00 (2006.01); F24F 5/00 (2006.01)
CPC F24F 1/0007 (2013.01) [F24F 3/00 (2013.01); F24F 5/0035 (2013.01); F24F 11/70 (2018.01); F24F 11/80 (2018.01)] 6 Claims
OG exemplary drawing
 
1. A heating, ventilating and air-conditioning (HVAC) system, comprising:
an evaporator;
field ductwork; and
an air handling unit (AHU) system, comprising:
an AHU comprising:
an enclosure formed to define an inlet and at least one outlet, which is downstream from the inlet and which is communicative with the field ductwork, wherein the at least one outlet comprises a first outlet section, a second outlet section, a baffle interposed between the first and second outlet sections and a downstream control element configured to modulate relative sizes of flows along the first and second outlet sections;
an air supply system to drive return air from the field ductwork and fresh air through the enclosure from the inlet to the outlet;
a misting system configured to:
spray a pressurized, water mist, comprising mist droplets, generated from water received from the evaporator into a portion of the enclosure upstream from the at least one outlet whereupon heat transfer occurs directly between the mist droplets and air prior to the air reaching the at least one outlet, and
return water drained from the enclosure to the evaporator; and
air conditioning elements operably disposed in the at least one outlet to condition the air upstream from the field ductwork,
wherein:
air conditioning elements in the first outlet section comprise a cooling coil, a blower, a heating coil interposed between the cooling coil and the blower and at least one filter, and
air conditioning elements in the second outlet section comprise a secondary nozzle, a blower, a heating coil interposed between the secondary nozzle and the blower and at least one filter.