US 11,779,870 B2
Smart filter elements and systems
Aaron Garofalo, Clinton Township, MI (US); and Luke Harrison, Shelby Township, MI (US)
Assigned to MAHLE International GmbH, Stuttgart (DE)
Filed by MAHLE International GmbH, Stuttgart (DE)
Filed on Dec. 4, 2020, as Appl. No. 17/111,568.
Prior Publication US 2022/0176294 A1, Jun. 9, 2022
Int. Cl. B01D 46/00 (2022.01); B01D 46/42 (2006.01); B01D 39/16 (2006.01); B01D 46/24 (2006.01); B60H 3/06 (2006.01); B01D 46/44 (2006.01)
CPC B01D 46/0086 (2013.01) [B01D 39/16 (2013.01); B01D 46/0005 (2013.01); B01D 46/2403 (2013.01); B01D 46/429 (2013.01); B01D 46/446 (2013.01); B60H 3/0658 (2013.01); B01D 2279/40 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A smart filter element comprising:
a filter media having a first side and a second side; wherein the first side includes a length and a width that defines an external border for the filter media
a frame comprising a plurality of walls, the frame surrounding at least a portion of the filter media; and
a sensor configured to measure a filter variable and to communicate wirelessly with a receiving device, the sensor being secured to the frame approximate to the second side of the filter media;
wherein a screen is secured within the frame, the screen comprises a first face located proximate to the filter media, and a second face opposite the first face located away from the filter media;
wherein the sensor is directly attached to at least one of the first face or the second face of the screen;
wherein the screen comprises one or more ridge projecting away from the second side of the filter media, and the ridge defining a cavity between the first face of the screen and the second side of filter media, wherein the sensor is located within the cavity.