Energy Recovery, Inc.

Alexander Patrick Theodossiou

Jeremy Grant Martin

Farshad Ghasripoor

David Deloyd Anderson

Adam Rothschild Hoffman

Omprakash Samudrala

Sujan Reddy Gudigopuram

Felix Winkler

Prem Krish

James Lee Arluck

Mark Richter

Chinmay Vishwas Deshpande

Raja Faruq Raja Baharuddin

Patrick William Morphew

Teymour Javaherchi

Anthony Kim Phan

Dung Le Tran

A pressure exchanger includes a rotor configured to exchange pressure between a first fluid at a first pressure and a second fluid at a second pressure. The rotor forms ducts that are routed from a first distal end to a second distal end. The rotor forms chamfers on trailing edge rotor duct walls. The pressure exchanger further includes a first end cover that forms a high pressure in (HPIN) port configured to provide the first fluid at the first pressure into the ducts. The first end cover forms a low pressure out (LPOUT) port configured to receive the first fluid from the ducts at a third pressure. The pressure exchanger further includes a second end cover that forms a low pressure in (LPIN) port configured to provide the second fluid at the second pressure into the ducts and forms a high pressure out (HPOUT) port configured to receive the second fluid from the ducts at a fourth pressure.

Reducing cavitation, noise, and vibration in a pressure exchanger

A system includes a pressure exchanger and one or more valves. The pressure exchanger includes a rotor that is configured to exchange pressure between a first fluid and a second fluid. The pressure exchanger further includes a housing disposed around the rotor, one or more flushing inlets coupled to the housing, and one or more flushing outlets coupled to the housing. The one or more first valves are coupled to the one or more flushing outlets. The one or more first valves in an open position are associated with a flushing operation. The one or more first valves in a closed position are associated with a lubrication operation.

Pressure exchangers with fouling and particle handling capabilities

A pressure exchanger includes a rotor configured to receive first fluid, receive second fluid, and exchange pressure between the first fluid and the second fluid. The pressure exchanger further includes a first component forming a low-pressure port, wherein the first fluid is routed between the rotor and the low-pressure port via a low-pressure passageway. The pressure exchanger further includes a second component forming a fluid passageway between the low-pressure passageway and a centerbore of the pressure exchanger.

Motorized pressure exchanger with a low-pressure centerbore

A pressure exchanger includes a rotor, a seal plate, and a seal structure. The rotor is configured to exchange pressure between a first fluid and a second fluid. The seal plate has a first substantially planar seal plate surface and a second substantially planar seal plate surface disposed opposite the first substantially planar seal plate surface. A piston structure extends from the first substantially planar seal plate surface to form a substantially planar piston surface that has a surface area and is substantially parallel to the first substantially planar seal plate surface. The seal plate and the piston structure form a hydraulic chamber routed from a first opening formed by the substantially planar piston surface to a second opening formed by the second substantially planar seal plate surface. The seal structure is configured to couple the second substantially planar seal plate surface to a corresponding surface of the pressure exchanger.

A rotary isobaric pressure exchanger (IPX) configured to exchange pressure between a first fluid and a second fluid. The rotary IPX includes a low-pressure port designed to output the first fluid under a first pressure. The rotary IPX further includes a rotor that is connected via a fluid flow path from the low-pressure port. The rotary IPX further includes a shaft routed through a centerbore formed by the rotary IPX. The rotary IPX forms a low-pressure passageway from the low-pressure port to the rotor. The rotary IPX further forms a fluid passageway between the low-pressure passageway and the centerbore. The rotary IPX further includes a motor connected to the shaft, the motor designed to rotate the shaft to drive the rotor.

A system includes an isobaric pressure exchanger (IPX) configured to couple to a manifold. The IPX is also configured to exchange pressure within the IPX between a first fluid at a first pressure and a second fluid at a second pressure. The IPX also includes a housing and at least one manifold connector disposed within the housing that is configured to couple the IPX to the manifold.

System for integrating valves and flow manifold into housing of pressure exchanger

A system includes a hydraulic fracturing system including a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid. The hydraulic fracturing system also includes a common manifold including one or more high pressure manifolds and one or more low pressure manifolds. The one or more high pressure manifolds and the one or more low pressure manifolds are coupled to the hydraulic energy transfer system.

Systems and methods for a common manifold with integrated hydraulic energy transfer systems

A system includes a rotary isobaric pressure exchanger (IPX) configured to exchange pressures between a first fluid and second fluid. The rotary IPX includes a first end cover including a first fluid aperture configured to route the first fluid. The rotary IPX also includes a first piston coupled to the first end cover. The first piston includes a first hydraulic path configured to route the first fluid to or from the first fluid aperture.

Pressure exchanger system with integral pressure balancing system

A system including a rotary isobaric pressure exchanger (IPX) configured to exchange pressures between a first fluid and a second fluid, and a motor system coupled to the hydraulic energy transfer system and configured to power the hydraulic energy transfer system.

Pressure exchange system with motor system

A system includes a rotary isobaric pressure exchanger (IPX) configured to exchange pressures between a first fluid and second fluid. The rotary IPX includes a first end cover including a first fluid aperture configured to route the first fluid. The rotary IPX also includes a first piston integral with the first end cover. The first piston includes a first hydraulic path configured to route the first fluid to or from the first fluid aperture.

A system includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid. The system also includes a motor system configured to power the hydraulic energy transfer system and a shaft coupling the motor system and the hydraulic energy transfer system. Additionally, the system includes a shaft seal disposed about the shaft. Further, the system includes a pressure compensator configured to reduce a pressure differential across the shaft seal.

Pressure exchange system with motor system and pressure compensation system

A system includes an isobaric pressure exchanger (IPX) that includes a housing and a rotor disposed within the housing. The system also includes a rotor advancing tool configured to engage and to move the rotor while the rotor is within the housing. The housing includes an opening that enables the rotor advancing tool to extend through the opening to engage and move the rotor.

Growing community of inventors

San Francisco, CA, United States of America

Alexander Patrick Theodossiou