US 12,487,612 B2
Automatic dual pump system with three-way valve
David Laslo, Webster, NY (US); Robert Link, Webster, NY (US); and Ryan Parsons, Webster, NY (US)
Assigned to Opticool Solutions, LLC
Filed by Opticool Solutions, LLC, Webster, NY (US)
Filed on Sep. 29, 2023, as Appl. No. 18/478,468.
Claims priority of provisional application 63/411,467, filed on Sep. 29, 2022.
Prior Publication US 2024/0111314 A1, Apr. 4, 2024
Int. Cl. H05K 7/20 (2006.01); F25B 1/10 (2006.01); G05D 7/06 (2006.01)
CPC G05D 7/0688 (2013.01) [H05K 7/20318 (2013.01); H05K 7/20327 (2013.01); H05K 7/20381 (2013.01); H05K 7/20827 (2013.01); F25B 1/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An automatic dual pump assembly for a pumped refrigerant cooling system including a refrigerant reservoir configured to receive a refrigerant fluid, the automatic dual pump assembly comprising:
a) a first pump having a first pump inlet and a first pump outlet, wherein the first pump outlet is coupled to a refrigerant supply line;
b) a first variable frequency drive operably coupled to the first pump;
c) a second pump having a second pump inlet and a second pump outlet, wherein the second pump outlet is coupled to the refrigerant supply line;
d) a second variable frequency drive operably coupled to the second pump; and
e) a three-way valve having an input arm configured to be fluidly coupled to the refrigerant reservoir, a first outlet arm fluidly coupled to the first pump inlet, and a second outlet arm coupled to the second pump inlet,
wherein the three-way valve is configured to selectively control flow of the refrigerant fluid to one or both of the first pump and the second pump.