Energy Recovery. has filed a patent for a pressure exchanger that utilizes a rotor to exchange pressure between two fluids. The rotor forms ducts that allow the fluids to flow from one end to the other, and chamfers on the rotor duct walls improve efficiency. The pressure exchanger includes end covers with ports for input and output of the fluids at different pressures. GlobalData’s report on Energy Recovery gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Energy Recovery, Oil well fracking was a key innovation area identified from patents. Energy Recovery's grant share as of September 2023 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Pressure exchanger for exchanging pressure between two fluids
A recently filed patent (Publication Number: US20230304513A1) describes a pressure exchanger that is designed to exchange pressure between two fluids. The pressure exchanger includes a rotor that rotates to facilitate the exchange of pressure. The rotor forms ducts that are routed from one end of the rotor to the other. The rotor also features chamfers on the trailing edge of the rotor duct walls.
The pressure exchanger further includes two end covers, one at each end of the rotor. The first end cover has a high pressure in (HPIN) port that provides the first fluid at a high pressure into the ducts. It also has a low pressure out (LPOUT) port that receives the first fluid from the ducts at a lower pressure. The second end cover has a low pressure in (LPIN) port that provides the second fluid at a lower pressure into the ducts. It also has a high pressure out (HPOUT) port that receives the second fluid from the ducts at a higher pressure.
The patent also describes various features of the pressure exchanger. For example, the second end cover forms a spot face proximate the HPOUT port. Additionally, the pressure exchanger forms a second spot face proximate the LPIN port of the second end cover, without forming a spot face proximate the LPOUT port of the first end cover. This configuration helps depressurize the high pressure duct of the rotor at the LPIN port.
Furthermore, the second end cover forms a chamfer at the LPIN port, which is designed to change the corresponding angle of the first spot face for each concentric row of the rotor ducts. This allows for the adjustment of the pressurization of different rows of ducts.
Overall, this patent describes a pressure exchanger with innovative features that facilitate the exchange of pressure between two fluids. The design of the rotor and end covers, including the use of chamfers and spot faces, allows for efficient and controlled pressure exchange.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
