# US 2018/0021714 A1 · Rotating Separator with Housing Preventing Separated Liquid Carryover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0021714 A1 - Document ID: US20180021714A1 - Status: Published application - Kind: A1 - Application number: 15/723,843 - Filed: 2017-10-03 - Published: 2018-01-25 - Earliest claimed: 2010-01-27 - Assignees: Cummins Filtration IP, Inc. - Applicants: Cummins Filtration IP, Inc. - Inventors: Chirag D. PARIKH; Arun JANAKIRAMAN; Saru DAWAR; Jerald J. MOY; Himani DESHPANDE; Brian W. SCHWANDT; Bridgette L. MEYER; Shiming FENG; Anna BALAZY; Vincil A. VARGHESE; Benjamin L. SCHECKEL - Web page: https://patentgrep.com/patent/US20180021714A1 ## CPC - B01D 46/0056: {with rotational movement} - B01D 46/0031: {with collecting, draining means} - B01D 46/2403: {characterised by the physical shape or structure of the filtering element} - B01D 46/26: rotatable - B01D 46/64: arranged concentrically or coaxially - B01D 50/20: Combinations of devices covered by groups B01D45/00 and B01D46/00 - F01M 13/04: having means for purifying air before leaving crankcase, e.g. removing oil - B04B 2005/125: {the rotors comprising separating walls} - F01M 2013/0422: {Separating oil and gas with a centrifuge device} - F01M 2013/0438: {with a filter} - F01M 2013/0477: {by separating water or moisture} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING - B04B: CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N) ## Abstract A rotating separator has a housing preventing separated liquid carryover. A plenum between the annular rotating separating filter element and the housing sidewall has one or more flow path separating guides minimizing the flow of separated liquid to the outlet. The flow path guides may include one or more fins and/or swirl flow dampers and/or a configured surface. ## Claims ### Claim 1 A rotating separator for separating liquid from a fluid mixture, the rotating separator comprising: a housing including a sidewall with an inner surface; an annular rotating separating filter element positioned within the housing and rotatable about an axis extending along an axial direction in the housing, the annular rotating separating filter element having an inner periphery defining a hollow interior, and having an outer periphery facing the inner surface of the housing and spaced along a radial direction radially outwardly from the inner surface thereby defining a plenum therebetween; and one or more fins extending into the plenum from the inner surface of the housing, the one or more fins forming capture grooves therebetween and helically winding downwardly around an inner circumference of the inner surface of the housing; wherein the housing comprises an inlet for supplying the mixture to the hollow interior, an outlet for delivering a separated component of the mixture from hollow interior, and a drain delivering separated liquid from the plenum. ### Claim 2 (depends on 1) The rotating separator of claim 1, wherein the one or more fins comprise axially extending slots formed therethrough. ### Claim 3 (depends on 1) The rotating separator of claim 1, wherein the plenum includes an upper portion and a lower portion, the lower portion being gravitationally below the upper portion, and wherein the sidewall of the housing tapers away from the annular rotating separating filter element as the sidewall extends away from the upper portion and toward the lower portion. ### Claim 4 (depends on 3) The rotating separator of claim 3, wherein the drain is positioned at the lower portion of the plenum. ### Claim 5 (depends on 3) The rotating separator of claim 3, wherein the outlet is positioned at the upper portion of the plenum. ### Claim 6 (depends on 1) The rotating separator of claim 1, wherein the fluid mixture flows along a flow path through the housing, the flow path directing the mixture through the annular rotating separating filter element in an inside-out manner from the hollow interior through the annular rotating separating filter element into the plenum. ### Claim 7 (depends on 6) The rotating separator of claim 6, wherein the flow path directs the fluid mixture through the plenum and into the capture grooves. ### Claim 8 (depends on 1) The rotating separator of claim 1, wherein the one or more fins are liquid-phobic. ### Claim 9 A rotating separator for separating liquid from a fluid mixture, the rotating separator comprising: a housing including a sidewall with an inner surface; an annular rotating separating filter element positioned within the housing and rotatable about an axis extending along an axial direction in the housing, the annular rotating separating filter element having an inner periphery defining a hollow interior, and having an outer periphery facing the inner surface of the housing and spaced along a radial direction radially outwardly from the inner surface thereby defining a plenum therebetween; and one or more flow path guides provided by the inner surface of the housing; wherein the housing comprises an inlet for supplying the mixture to the hollow interior, an outlet for delivering a separated component of the mixture from hollow interior, and a drain delivering separated liquid from the plenum. ### Claim 10 (depends on 9) The rotating separator of claim 9, wherein the inner surface comprises a media layer. ### Claim 11 (depends on 10) The rotating separator of claim 10, wherein the media layer comprises a fibrous media layer. ### Claim 12 (depends on 10) The rotating separator of claim 10, wherein the media layer comprises a wire mesh layer. ### Claim 13 (depends on 9) The rotating separator of claim 9, wherein the inner surface is liquid-philic. ### Claim 14 (depends on 13) The rotating separator of claim 13, wherein the one or more flow path guides comprise one or more fins extending from the inner surface of the housing. ### Claim 15 (depends on 13) The rotating separator of claim 13, wherein the one or more flow path guides comprise a swirl damper positioned in the plenum, the swirl flow damper comprising a vortex tube having a trapezoidal cross-section and structured to allow the fluid mixture to pass through the vortex tube, thereby creating a low shear recirculation upstream of the vortex tube.