SYSTEMS COMPRISING A PRESSURE EXCHANGER, ASSOCIATED METHODS, AND ASSOCIATED NON-TRANSITORY MACHINE-READABLE STORAGE MEDIUM

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(11)

EP 4 726 283 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	08.07.2026 Bulletin 2026/28

(43)	Date of publication A2:
	15.04.2026 Bulletin 2026/16

(21)	Application number: 26155133.7

(22)	Date of filing: 27.09.2023

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International Patent Classification (IPC):

F25B 1/06^(2006.01)
F25B 11/02^(2006.01)
F25B 31/02^(2006.01)
F25B 41/20^(2021.01)
F25B 49/02^(2006.01)
F25B 9/00^(2006.01)

F04F 13/00^(2009.01)
F25B 31/00^(2006.01)
F25B 40/02^(2006.01)
F25B 41/30^(2021.01)
F25B 1/10^(2006.01)
F25B 9/06^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	F04F 13/00; F25B 31/00; F25B 31/02; F25B 31/026; F25B 1/06; F25B 49/022; F25B 2400/075; F25B 41/20; F25B 41/30; F25B 11/02; F25B 2700/171; F25B 2700/2103; F25B 2700/21163; F25B 40/02; F25B 2400/05; F25B 1/10; F25B 9/06; F25B 9/008

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

28.09.2022 US 202263411015 P
23.03.2023 US 202363454284 P

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	23793155.5 / 4594688

(71)	Applicant: Energy Recovery, Inc.
	San Leandro, California 94577 (US)

(72)	Inventors:
	MCLEAN, JR., James Elliott San Leandro, CA 94577 (US) TRUAX, Matthew Hans San Leandro, CA 94577 (US)

(74)	Representative: Knöner, Gregor et al
	Kahler Käck Mollekopf Partnerschaft von Patentanwälten mbB Iglinger Straße 27 86899 Landsberg/Lech 86899 Landsberg/Lech (DE)

(54)	SYSTEMS COMPRISING A PRESSURE EXCHANGER, ASSOCIATED METHODS, AND ASSOCIATED NON-TRANSITORY MACHINE-READABLE STORAGE MEDIUM

(57) A method is provided. The method comprises: obtaining, by a processing device, a first indication of a speed of operation of a pressure exchanger, (PX), of a heat transfer system; determining, based on the first indication of the speed of operation of the PX, a target speed of operation of a low-pressure booster, wherein an outlet of the low-pressure booster is coupled to provide fluid to a low-pressure inlet of the PX; and causing, based on the target speed of operation of the low-pressure booster, an adjustment to a speed of operation of the low-pressure booster.

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