Filtration design for immersion cooling tank systems

Patent metadata

Field	Value
Publication number	US-12364939-B2
Application number	US-202017639971-A
Country	US
Kind code	B2
Filing date	Sep 10, 2020
Priority date	Sep 11, 2019
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

A filtration system for a tank includes a filter housing, at least a portion of which is disposed in a tank and in fluidic communication with a dielectric fluid within the tank; at least one filtration element, disposed within the filter housing; and a fluid pump, at least a portion of which is disposed within the filter housing and immersed in the dielectric fluid, the fluid pump in fluidic communication with the at least one filtration element.

First claim

What is claimed is:

1. A filtration system for a tank, comprising
a filter housing, at least a portion of which is disposed in a tank and in fluidic communication with a dielectric fluid within the tank;
at least one filtration element, disposed within the filter housing, the filter housing comprising an opening disposed on a portion of the filter housing accessible from outside the tank;
a removable elongated member separate from and removably attached to the filter housing; and
a fluid pump, at least a portion of which is disposed within the filter housing and immersed in the dielectric fluid, the fluid pump in fluidic communication with the at least one filtration element;
wherein the fluid pump is unsealed, and an electrical connection of the fluid pump is exposed and at least partially immersed within the dielectric fluid;
wherein the fluid pump and the at least one filtration element are disposed on and physically connected by the removable elongated member such that they may be removed through the opening of the filter housing using the elongated member.

2. The filtration system of claim 1 , wherein the elongated member is a central core extending past or through the at least one filtration element and the fluid pump.

3. The filtration system of claim 1 , wherein the elongated member is a container at least partially enclosing the at least one filtration element and the fluid pump.

4. The filtration system of claim 1 , wherein the tank is an immersion cooling tank for an electronic system.

5. The filtration system of claim 1 , further comprising a sensor for determining a status of the at least one filtration element.

6. The filtration system of claim 5 , wherein the sensor is a color-changing sensor.

7. The filtration system of claim 5 , wherein the sensor is an electronic sensor configured to monitor an electrical property of the at least one filtration element.

Assignees

• 3M Innovative Properties Company

Inventors

• Baetzold John P
• Tuma Phillip E
• Vogel-Martin Margaret M
• Fayemi Bamidele O
• Jesme Ronald D

Classifications

• H05K7/20236 Primary

  by immersion · CPC title

• B01D2201/301

  Details of removable closures, lids, caps, filter heads · CPC title

• B01D2201/287

  Filtering elements with a vertical or inclined rotation or symmetry axis · CPC title

• B01D35/26 Primary

  Filters with built-in pumps {filters provided with a pump mounted in or on the casing (aquarium pumps or filters A01K63/04)} · CPC title

• B01D35/18

  Heating or cooling the filters · CPC title