US 12,085,324 B2
Refrigeration and heat pump systems with pressure exchangers
Azam Mihir Thatte, Kensington, CA (US); Behzad Zamanian Yazdi, San Francisco, CA (US); David Deloyd Anderson, Castro Valley, CA (US); James Elliott McLean, Jr., Houston, TX (US); Joseph Michael Marchetti, Spring, TX (US); Omprakash Samudrala, San Ramon, CA (US); Neelesh Sarawate, Pleasanton, CA (US); Kuo-Chiang Chen, Dublin, CA (US); and Farshad Ghasripoor, Berkeley, CA (US)
Assigned to Energy Recovery, Inc., San Leandro, CA (US)
Filed by Energy Recovery, Inc., San Leandro, CA (US)
Filed on Mar. 13, 2023, as Appl. No. 18/120,839.
Application 18/120,839 is a division of application No. 17/834,831, filed on Jun. 7, 2022, granted, now 11,781,789.
Claims priority of provisional application 63/287,831, filed on Dec. 9, 2021.
Claims priority of provisional application 63/285,811, filed on Dec. 3, 2021.
Claims priority of provisional application 63/278,804, filed on Nov. 12, 2021.
Claims priority of provisional application 63/208,925, filed on Jun. 9, 2021.
Prior Publication US 2023/0213245 A1, Jul. 6, 2023
Int. Cl. F25B 13/00 (2006.01); F03G 7/00 (2006.01); F25B 7/00 (2006.01); F25B 9/00 (2006.01); F25B 30/02 (2006.01); F25B 39/00 (2006.01); F25B 39/04 (2006.01); F25B 41/20 (2021.01); F25B 49/02 (2006.01)
CPC F25B 7/00 (2013.01) [F03G 7/00 (2013.01); F25B 9/008 (2013.01); F25B 13/00 (2013.01); F25B 30/02 (2013.01); F25B 39/00 (2013.01); F25B 39/04 (2013.01); F25B 41/20 (2021.01); F25B 49/02 (2013.01); F25B 49/022 (2013.01); F25B 2600/025 (2013.01); F25B 2600/13 (2013.01); F25B 2700/13 (2013.01); F25B 2700/151 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/195 (2013.01); F25B 2700/21152 (2013.01); F25B 2700/21173 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a pressure exchanger (PX) configured to receive a first fluid at a first pressure via a first inlet of the PX, receive a second fluid at a second pressure via a second inlet of the PX, and exchange pressure between the first fluid and the second fluid, wherein the first fluid is to exit the PX at a third pressure via a first outlet of the PX, and wherein the second fluid is to exit the PX at a fourth pressure via a second outlet of the PX;
a condenser configured to provide the first fluid to the PX via the first inlet of the PX and provide corresponding thermal energy from the first fluid to a first corresponding environment; and
a first ejector configured to:
receive a first gas of at least a portion of the first fluid output from the PX;
increase pressure of the first gas to form the second fluid at the second pressure; and
provide the second fluid at the second pressure to the PX via the second inlet.