US 11,994,049 B2
Duckbill aerosol separator with always open refinement
Peter K. Herman, Stoughton, WI (US); Kaarthik Venkataraman, Middleton, WI (US); Vincil A. Varghese, McFarland, WI (US); and Puja Karde, Stoughton, WI (US)
Assigned to Cummins Filtration IP, Inc., Columbus, IN (US)
Filed by Cummins Filtration IP, Inc., Columbus, IN (US)
Filed on Apr. 11, 2023, as Appl. No. 18/133,399.
Application 18/133,399 is a continuation of application No. 17/437,766, granted, now 11,624,302, previously published as PCT/US2020/019175, filed on Feb. 21, 2020.
Claims priority of provisional application 62/817,289, filed on Mar. 12, 2019.
Prior Publication US 2023/0279796 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F01M 13/04 (2006.01); B01D 45/08 (2006.01); F01N 13/04 (2010.01)
CPC F01N 13/04 (2013.01) [B01D 45/08 (2013.01); F01M 2013/0433 (2013.01); F01M 2013/045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An impactor separator comprising:
a housing comprising an inlet receiving a gas-liquid stream and an outlet expelling a gas stream;
an impaction surface positioned within the housing and configured to separate liquid particles from the gas-liquid stream; and
a nozzle assembly positioned within the housing and comprising a nozzle assembly housing portion and a plurality of nozzles extending through the nozzle assembly housing portion, each of the plurality of nozzles having a nozzle inlet and a nozzle outlet, the plurality of nozzles comprising:
a duckbill valve having an always-open orifice, and
at least one additional valve disposed adjacent the duckbill valve;
wherein the gas-liquid stream enters into the nozzle assembly housing portion, flows into the plurality of nozzles through the nozzle inlets and exits the plurality of nozzles through the nozzle outlets, wherein the plurality of nozzles accelerates the gas-liquid stream toward the impaction surface.