US 12,071,873 B2
Anti-rotation features for crankcase ventilation filters
Chirag D. Parikh, Madison, WI (US); Rajath Martin, Madison, WI (US); Ken Tofsland, Stoughton, WI (US); and Ganesh Ram Ramanujam Karthikeyan, West Lafayette, IN (US)
Assigned to CUMMINS FILTRATION IP, INC., Columbus, IN (US)
Appl. No. 17/055,064
Filed by CUMMINS FILTRATION IP, INC., Columbus, IN (US)
PCT Filed May 21, 2019, PCT No. PCT/US2019/033238
§ 371(c)(1), (2) Date Nov. 12, 2020,
PCT Pub. No. WO2019/226608, PCT Pub. Date Nov. 28, 2019.
Claims priority of provisional application 62/675,978, filed on May 24, 2018.
Prior Publication US 2021/0189926 A1, Jun. 24, 2021
Int. Cl. F01M 13/04 (2006.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/26 (2006.01); B01D 46/52 (2006.01)
CPC F01M 13/04 (2013.01) [B01D 46/0045 (2013.01); B01D 46/2414 (2013.01); B01D 46/26 (2013.01); B01D 46/528 (2013.01); B01D 2265/021 (2013.01); B01D 2275/105 (2013.01); F01M 2013/0438 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A rotating crankcase ventilation filter element, comprising:
a filter media comprising a plurality of filter media layers; and
a first end cap positioned on a filter media first end of the filter media, the first end cap comprising:
a first end cap main body;
a plurality of flow vanes extending axially from the first end cap main body towards the filter media, plurality of flow vanes defining radial flow channels therebetween; and
a first plurality of indenting features positioned on each of a set of the plurality of flow vanes proximate the filter media first end, the first plurality of indenting features contacting and indenting corresponding segments of the filter media first end, causing the plurality of filter media layers to interlock at the corresponding segments, the interlocking preventing movement of the plurality of filter media layers relative to each other, wherein each of the plurality of flow vanes is positioned perpendicular to the plurality of filter media layers of the filter media such that indentations formed by first plurality of indenting features on the filter media are perpendicular to the plurality of filter media layers.