US 11,946,676 B2
Fixed orifice refrigerant distribution system
Michael F. Taras, Spring, TX (US); Gunar Neto, Houston, TX (US); and Kazuo Fujisaki, Katy, TX (US)
Assigned to Goodman Manufacturing Company, L.P., Waller, TX (US)
Filed by Goodman Manufacturing Company, L.P., Waller, TX (US)
Filed on Apr. 1, 2022, as Appl. No. 17/711,952.
Prior Publication US 2023/0314052 A1, Oct. 5, 2023
Int. Cl. F25B 41/37 (2021.01); F25B 39/00 (2006.01)
CPC F25B 41/37 (2021.01) [F25B 39/00 (2013.01); F25B 2339/02 (2013.01); F25B 2341/062 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A method comprising:
providing a flow restrictor having a plurality of fixed orifices in a shared body; and
installing the flow restrictor at an evaporator inlet manifold such that the plurality of fixed orifices are positioned to restrict flow of refrigerant from the evaporator inlet manifold to an evaporator coil, wherein the plurality of fixed orifices includes a first fixed orifice and a second fixed orifice, the first fixed orifice is positioned to restrict flow of refrigerant from the evaporator inlet manifold to the evaporator coil through the first fixed orifice and a first inlet of the evaporator coil, and the second fixed orifice is positioned to restrict flow of refrigerant from the evaporator inlet manifold to the evaporator coil through the second fixed orifice and a second inlet of the evaporator coil, wherein installing the flow restrictor at the evaporator inlet manifold includes inserting the flow restrictor into the evaporator inlet manifold, wherein inserting the flow restrictor into the evaporator inlet manifold includes aligning the first fixed orifice with a first refrigerant distribution tube in fluid communication with the evaporator coil and aligning the second fixed orifice with a second refrigerant distribution tube in fluid communication with the evaporator coil, and wherein inserting the flow restrictor into the evaporator inlet manifold includes engaging an alignment guide to provide angular alignment of the first fixed orifice with the first refrigerant distribution tube and angular alignment of the second fixed orifice with the second refrigerant distribution tube.