US 12,303,816 B2
Axial flow centrifugal separator
Christopher E. Holm, Madison, WI (US); Peter K. Herman, Stoughton, WI (US); Arun P. Janakiraman, Stoughton, WI (US); Gerard Malgorn, Ergue Gaberic (FR); Chirag D. Parikh, Madison, WI (US); Anthony Barreteau, Quimper (FR); Ronan Corvec, Quimper (FR); and Ken Tofsland, Stoughton, WI (US)
Assigned to CUMMINS FILTRATION IP, INC., Columbus, IN (US)
Filed by CUMMINS FILTRATION IP, INC., Columbus, IN (US)
Filed on Apr. 1, 2024, as Appl. No. 18/623,960.
Application 18/623,960 is a division of application No. 17/888,184, filed on Aug. 15, 2022, granted, now 11,951,431.
Application 17/888,184 is a continuation of application No. 16/615,036, granted, now 11,446,598, issued on Sep. 20, 2022, previously published as PCT/US2018/038354, filed on Jun. 19, 2018.
Claims priority of provisional application 62/522,451, filed on Jun. 20, 2017.
Prior Publication US 2024/0269592 A1, Aug. 15, 2024
Int. Cl. B01D 46/00 (2022.01); B01D 39/20 (2006.01); B01D 46/40 (2006.01); F01M 13/04 (2006.01)
CPC B01D 46/0031 (2013.01) [B01D 39/2068 (2013.01); B01D 46/0047 (2013.01); B01D 46/0056 (2013.01); B01D 46/403 (2013.01); F01M 13/04 (2013.01); B01D 2275/105 (2013.01); B01D 2279/35 (2013.01); F01M 2013/0422 (2013.01); F01M 2013/0438 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A crankcase ventilation system comprising:
a housing defining a central compartment and having a housing inlet configured to provide blowby gases from a crankcase of an internal combustion engine into the central compartment; and
a rotating coalescer element installed in the central compartment, the rotating coalescer element comprising:
an outer circumferential wall;
filter media contained within a space defined by the outer circumferential wall and interfacing with the outer circumferential wall, the filter media comprising a plurality of axial flow channels configured to receive blowby gas at a lower end of the filter media; and
a rotating coalescer outlet contiguous with and extending from the outer circumferential wall, the rotating coalescer outlet positioned above the filter media and configured to receive filtered blowby gas from an upper end of the filter media and provide the filtered blowby gas to a housing outlet of the housing, the rotating coalescer outlet including a lateral surface extending radially outside of an outer perimeter of the filter media.