Refrigeration and heat pump systems with pressure exchangers

US12085324B2 · kind B2 · utility

Assignee

• Energy Recovery, Inc. · US

Inventors

• Azam Mihir Thatte · Kensington, US
• Behzad Zamanian Yazdi · San Francisco, US
• David Deloyd Anderson · Glenville, US
• James Elliott McLean, Jr. · Houston, US
• Joseph Michael Marchetti · Spring, US
• Omprakash Samudrala · San Ramon, US
• Neelesh Sarawate · Pleasanton, US
• Kuo-Chiang Chen · Sugar Land, US
• Farshad Ghasripoor · Berkeley, US

Key dates

• Filing date: Mar 13, 2023
• Grant date: Sep 10, 2024
• Expiry date: Mar 13, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B30/70
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide corresponding thermal energy from the first fluid to a corresponding environment. The system further includes a first ejector to receive a first gas and increase pressure of the first gas to form the second fluid at the second pressure. The first ejector is further to provide the second fluid at the second pressure to the PX.