1. WO2026085611 - MODULATING HEAT RECLAIM FOR A REFRIGERATION SYSTEM

Publication Number WO/2026/085611

Publication Date 30.04.2026

International Application No. PCT/CA2025/051387

International Filing Date 21.10.2025

IPC

F25B 9/00 2006.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
9	Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point

F25B 1/10 2006.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
1	Compression machines, plants or systems with non-reversible cycle
10	with multi-stage compression

F25B 6/00 2006.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
6	Compression machines, plants or systems, with several condenser circuits

F25B 41/22 2021.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41	Fluid-circulation arrangements
20	Disposition of valves, e.g. of on-off valves or flow control valves
22	between evaporator and compressor

F25B 41/42 2021.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41	Fluid-circulation arrangements
40	Fluid line arrangements
42	Arrangements for diverging or converging flows, e.g. branch lines or junctions

F25B 9/00 2006.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
9	Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point

F25B 1/10 2006.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
1	Compression machines, plants or systems with non-reversible cycle
10	with multi-stage compression

F25B 6/00 2006.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
6	Compression machines, plants or systems, with several condenser circuits

F25B 41/22 2021.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41	Fluid-circulation arrangements
20	Disposition of valves, e.g. of on-off valves or flow control valves
22	between evaporator and compressor

F25B 41/42 2021.1

F	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25	REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B	REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41	Fluid-circulation arrangements
40	Fluid line arrangements
42	Arrangements for diverging or converging flows, e.g. branch lines or junctions

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Applicants

• FLO ENERGY SOLUTIONS INC. [CA]/[CA]

Inventors

• SEMIDEY, Laura Janke
• ZAMANZADEH HARATBAR, Saman
• GUI, Marvin
• REIST, Peter

Agents

• PIASETZKI NENNIGER KVAS LLP

Priority Data

63/709,590

21.10.2024

US

Publication Language English (en)

Filing Language English (en)

Designated States

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AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CV, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IQ, IR, IS, IT, JM, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, MG, MK, MN, MU, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UY, UZ, VC, VN, WS, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, CV, GH, GM, KE, LR, LS, MU, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

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Title

(EN) MODULATING HEAT RECLAIM FOR A REFRIGERATION SYSTEM

(FR) MODULATION DE RÉCUPÉRATION DE CHALEUR POUR UN SYSTÈME DE RÉFRIGÉRATION

Abstract

(EN) A method of modulating heat reclamation from a refrigeration system, the method comprises providing a controller that is operatively connected to a first temperature sensor, a second temperature sensor, a first pressure sensor and a second pressure sensor for receiving data from said sensors, the controller being operatively connected to a three-way valve and a reclaim diverter valve; circulating a CO₂ refrigerant through a refrigerant conduit; opening the reclaim diverter valve by means of the controller upon receiving data from a space temperature sensor indicating that reclaim is required; circulating a CO₂ refrigerant through the reclaim diverter valve to the first reclaim conduit; and modulating the amount of refrigerant that flows through the three-way valve into the first reclaim conduit and into a second reclaim conduit that does not pass through the reclaim coil by means of the controller in response to data received from at least one of said sensors.

(FR) L'invention concerne un procédé de modulation de récupération de chaleur à partir d'un système de réfrigération, le procédé consistant à fournir un dispositif de commande qui est connecté de manière fonctionnelle à un premier capteur de température, à un second capteur de température, à un premier capteur de pression et à un second capteur de pression pour la réception de données en provenance desdits capteurs, le dispositif de commande étant connecté de manière fonctionnelle à une vanne à trois voies et à une vanne de dérivation de récupération ; faire circuler un fluide frigorigène au CO₂ à travers un conduit de fluide frigorigène ; ouvrir la vanne de dérivation de récupération au moyen du dispositif de commande lors de la réception de données provenant d'un capteur de température d'espace indiquant qu'une récupération est requise ; faire circuler un fluide frigorigène au CO₂ à travers la vanne de dérivation de récupération vers le premier conduit de récupération ; et moduler la quantité de fluide frigorigène qui s'écoule à travers la vanne à trois voies dans le premier conduit de récupération et dans un second conduit de récupération qui ne traverse pas le serpentin de récupération au moyen du dispositif de commande en réponse à des données reçues en provenance d'au moins l'un desdits capteurs.

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