US 12,246,279 B2
Inertial separator and method of use
Luiz Claudio Vieira Fernandes, Port Washington, NY (US); and Jianxiao Liu, Port Washington, NY (US)
Assigned to Pall Corporation, Port Washington, NY (US)
Filed by Pall Corporation, Port Washington, NY (US)
Filed on Nov. 21, 2022, as Appl. No. 17/990,986.
Prior Publication US 2024/0165548 A1, May 23, 2024
Int. Cl. B01D 45/12 (2006.01); B04C 3/00 (2006.01)
CPC B01D 45/12 (2013.01) [B04C 2003/006 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An inertial separator device comprising an inertial separator arranged in a housing, wherein the inertial separator comprises
(a) an inlet tube having an inlet at an inlet end, an outlet at an opposite outlet end, the outlet end including an undercut, a central passage between the inlet end and the outlet end; the outlet end including the undercut;
(b) a deflector coaxially mounted in the central passage, the deflector having a plurality of spaced centrally joined helical vanes abutting the wall of the central passage;
(c) a coaxially arranged outlet tube positioned within the outlet end of the inlet tube, the outlet tube having a first end and an opposite second end, the first end having an inlet, the second end having an outlet, and an outlet tube central passage between the inlet and the outlet in fluid communication with the central passage of the inlet tube, the outlet tube including first and second pairs of first and second anti-rotation tabs, wherein first and second anti-rotation tabs of the first pair of anti-rotation tabs are spaced further apart than first and second anti-rotation tabs of the second pair of anti-rotation tabs,
the inlet of the outlet tube being of lesser diameter than the central passage of the inlet tube, the outlet tube having an outer surface having a spiral ramp having a first ramp end and a second ramp end, the spiral ramp having a portion angled downwardly toward the second ramp end and the undercut; and,
(d) a scavenge flow outlet adjacent the undercut and the second ramp end.