Energy Recovery has filed a patent for a system that includes an isobaric pressure exchanger (IPX) designed to exchange pressure between two fluids. The IPX features a rotor with symmetrically arranged ports, an end cover with ports, and an insert placed between the ports. The insert either contacts flow channels formed by the ports or is positioned between the ports without touching any flow channels. 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 June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

A system for pressure exchange between fluids using a rotor

Source: United States Patent and Trademark Office (USPTO). Credit: Energy Recovery Inc

A recently filed patent (Publication Number: US20230119452A1) describes a system for exchanging pressure between two fluids using an isobaric pressure exchanger (IPX). The IPX includes a rotor that rotates around a longitudinal axis and has multiple rotor ports arranged symmetrically at its distal end. An end cover is placed at the distal end of the rotor and has corresponding end cover ports for hydraulic communication with the rotor ports. An insert is positioned between two rotor ports or two end cover ports, either contacting the flow channels formed by these ports or without contacting any flow channels.

The system also includes an inlet port and an outlet port on the end cover, which are equidistant from the center axis of the end cover. The insert is placed between the distal ends of the inlet and outlet ports. Additionally, a second insert is positioned between the other distal ends of the inlet and outlet ports.

The insert in the system can be made of materials such as tungsten carbide or polycrystalline diamond (PCD). It can also consist of a layer of PCD on a carbide substrate. The rotor or end cover forms a recess to accommodate the insert, and the outer surface of the insert is flush with the distal end of the rotor and the end cover surface. The insert can be attached to the rotor or end cover using epoxy or brazing.

The insert may comprise two components with mating faces that align with each other. It can also be removably attached to the rotor or end cover using fasteners. Additionally, an insert holder can be used to secure the insert with an interference fit and attach it to the rotor or end cover using fasteners.

The patent also describes a rotor for the IPX, which has multiple rotor ports arranged symmetrically around its longitudinal axis. The rotor includes an insert placed in a recess between two rotor ports, either contacting the flow channels or without contacting any flow channels. The insert can be made of tungsten carbide, PCD, or a layer of PCD on a carbide substrate. It is attached to the rotor using epoxy or brazing.

Similarly, the patent discusses an end cover for the IPX, which has an inlet port and an outlet port arranged symmetrically around its center axis. The end cover includes an insert placed in a recess between the inlet and outlet ports, either contacting the flow channels or without contacting any flow channels. The insert can be made of tungsten carbide, PCD, or a layer of PCD on a carbide substrate. It is attached to the end cover using epoxy or brazing.

Overall, this patent presents a system and components for an isobaric pressure exchanger that allows for efficient pressure exchange between fluids. The use of inserts made of materials like tungsten carbide or PCD enhances the performance and durability of the system.

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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