# US 10,480,534 B2 · Supercharger outlet resonator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,534 B2 - Document ID: US10480534B2 - Status: Granted - Kind: B2 - Application number: 15/312,641 - Filed: 2015-05-19 - Published: 2017-07-20 - Granted: 2019-11-19 - Earliest claimed: 2014-05-19 - Assignees: Eaton Intelligent Power Limited - Applicants: Eaton Corporation - Inventors: Kartikeya K. Mahalatkar; Girish Sudhir Kulkarni; Sunil Kumar Kunche; Andrew Scott Meyers; Michael J. Froehlich; Matthew Gareld Swartzlander - Web page: https://patentgrep.com/patent/US10480534B2 ## CPC - F04D 29/665: {by means of resonance chambers or interference} - F02B 33/38: of Roots type - F02B 33/40: of non-positive-displacement type - F02M 35/10157: {Supercharged engines} - F02M 35/1216: {by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators} - F02M 35/1255: {using resonance} - F02M 35/1266: {comprising multiple chambers or compartments} - F02M 35/1288: {combined with or integrated into other devices (F02M35/14 takes precedence); Plurality of air intake silencers (F02M35/1266 takes precedence)} - F04C 18/16: with helical teeth, e.g. chevron-shaped, screw type {(for non-parallel axes of movement F04C18/48)} - F04C 29/06: Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N) - F04D 17/10: for compressing or evacuating - F04D 25/024: {the driving means being assisted by a power recovery turbine} - F04D 29/664: {by means of sound absorbing material} - F02B 29/0406: {Layout of the intake air cooling or coolant circuit} - F04C 18/126: {with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type} - F04C 29/042: {by injecting a fluid (injection of fluid for sealing, cooling or lubrication F04C29/0007)} - F04C 29/12: Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet - F04C 2240/30: Casings or housings - F05D 2220/40: in turbochargers - Y02T 10/12: Improving ICE efficiencies - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A supercharger outlet resonator comprises a housing, a first surface comprising a first opening and a housing axis bisecting the first opening, and a second surface comprising a second opening, the second surface located parallel to the first surface. A channel is perpendicular to the housing axis and connects the first opening to the second opening. The channel comprises at least one sidewall. An envelope is fluidly separated from the channel by the at least one sidewall, the envelope at least partially surrounds the channel, and the envelope extends from the first surface to the second surface. The envelope comprises a third opening and at least one second sidewall. A noise-reducing material located on the housing. ## Claims ### Claim 1 A supercharger outlet resonator comprising: a housing; a first surface comprising a first opening and a housing axis bisecting the first opening; a second surface comprising a second opening, the second surface located parallel to the first surface; a channel perpendicular to the housing axis and connecting the first opening to the second opening, the channel comprising at least one sidewall; an envelope fluidly separated from the channel by the at least one sidewall, the envelope at least partially surrounding the channel, the envelope extending from the first surface to the second surface, the envelope connected to a backflow port of the supercharger, the envelope comprising: a third opening; and at least one second sidewall; and a noise-reducing material located on the housing. ### Claim 2 (depends on 1) The supercharger outlet resonator of claim 1, wherein the noise-reducing material comprises a perforated material. ### Claim 3 (depends on 2) The supercharger outlet resonator of claim 2, wherein the perforated material comprises a pattern in a sheet material, and wherein the pattern varies along the sheet material. ### Claim 4 (depends on 1) The supercharger outlet resonator of claim 1, wherein the noise-reducing material comprises layers of noise-reducing material. ### Claim 5 (depends on 4) The supercharger outlet resonator of claim 4, wherein the layers comprise a space between the layers. ### Claim 6 (depends on 4) The supercharger outlet resonator of claim 4, wherein the layers of noise-reducing material are at least one of parallel, perpendicular, or intersecting. ### Claim 7 (depends on 1) The supercharger outlet resonator of claim 1, wherein the noise-reducing material comprises one or more of a micro-perforated panel, a perforated panel, stacked tubular panels, or a corrugated material. ### Claim 8 (depends on 1) The supercharger outlet resonator of claim 1, wherein the first opening is triangular. ### Claim 9 (depends on 1) The supercharger outlet resonator of claim 1, further comprising a backwall. ### Claim 10 (depends on 1) The supercharger outlet resonator of claim 1, wherein the envelope is at least partially V-shaped. ### Claim 11 (depends on 1) The supercharger outlet resonator of claim 1, wherein the noise-reducing material comprises one or both of a gasket adjoining the first surface and a sealant in a tray proximal to the first opening. ### Claim 12 (depends on 1) The supercharger outlet resonator of claim 1, wherein the noise-reducing material comprises a coating on the at least one sidewall of the channel, and the coating comprises one of an absorber material, an aluminum coating, a laminated material, or a combination of a laminated material and an adhesive. ### Claim 13 (depends on 1) The supercharger outlet resonator of claim 1, wherein the noise-reducing material comprises a mirror-image set of perforated materials arranged on either side of the housing axis. ### Claim 14 (depends on 13) The supercharger outlet resonator of claim 13, wherein the mirror-image sets of perforated materials comprise planar sheets of material that vary along the length of the housing axis, the variation comprising one of spacing between planar sheets, perforation patterns in the sheets of material, parallel pattern of planar sheets, or perpendicular pattern of planar sheets. ### Claim 15 (depends on 13) The supercharger outlet resonator of claim 13, wherein the mirror-image sets of perforated materials comprise planar sheets of material arranged askew with respect to the housing axis. ### Claim 16 (depends on 13) The supercharger outlet resonator of claim 13, wherein the mirror-image sets of perforated materials comprise planar sheets of material arranged parallel with respect to the housing axis. ### Claim 17 (depends on 13) The supercharger outlet resonator of claim 13, wherein the mirror-image sets of perforated materials comprise planar sheets of material arranged perpendicular with respect to the housing axis. ### Claim 18 (depends on 13) The supercharger outlet resonator of claim 13, wherein the mirror-image sets of perforated materials comprise planar sheets of material arranged askew with respect to the housing axis and wherein the mirror-image sets comprise a first set and a second set, and the first set is one of parallel or perpendicular with respect to the second set. ### Claim 19 A supercharger assembly comprising: a supercharger, wherein the supercharger comprises: a housing, the housing comprising: an axial inlet; a radial outlet; a rotor bore connected between the axial inlet and the radial outlet; and at least one pair of backflow ports adjacent one of the axial inlet or the radial outlet, the at least one pair of backflow ports fluidly connected to the rotor bore; a supercharger outlet resonator adjoined to the supercharger adjacent the radial outlet, the supercharger outlet resonator comprising: a housing; a first surface comprising a first opening and a housing axis bisecting the first opening, the first opening coupled to the outlet; a second surface comprising a second opening, the second surface located parallel to the first surface; a channel perpendicular to the housing axis and connecting the first opening to the second opening, the channel comprising at least one sidewall; an envelope fluidly separated from the channel by the at least one sidewall, the envelope at least partially surrounding the channel, the envelope extending from the first surface to the second surface, the envelope comprising: a third opening; and at least one second sidewall; and a noise-reducing material located on the housing. ### Claim 20 (depends on 19) The supercharger assembly of claim 19, further comprising an intercooler connected to receive air from the second opening and connected to return air to the third opening. ### Claim 21 (depends on 20) The supercharger assembly of claim 20, wherein the noise-reducing material is arranged so that air returned to the third opening traverses the noise-reducing material to reach the at least one pair of backflow ports. ### Claim 22 (depends on 19) The supercharger assembly of claim 19, wherein the at least one pair of backflow ports are arranged in a mirror-image about a center axis of the radial outlet and comprise a first backflow port pair and a second backflow port pair adjacent the radial outlet, wherein the first backflow port pair has a mirror-image first port center axis, wherein the second backflow port pair has a mirror-image second port center axis, and wherein the second port center axis is parallel to the first port center axis. ### Claim 23 (depends on 19) The supercharger assembly of claim 19, wherein the at least one pair of backflow ports are arranged in a mirror-image about a center axis of the radial outlet and comprise a first backflow port pair and a second backflow port pair adjacent the radial outlet, wherein the first backflow port pair has a mirror-image first port center axis, wherein the second backflow port pair has a mirror-image second port center axis, and wherein the second port center axis is askew to the first port center axis. ### Claim 24 (depends on 22) The supercharger assembly of one of claim 22, wherein the noise-reducing material comprises a mirror-image set of sheets of perforated materials arranged on either side of the housing axis, and wherein the sheets are arranged parallel to one of the first port center axis or the second port center axis. ### Claim 25 (depends on 22) The supercharger assembly of one of claim 22, wherein the noise-reducing material comprises a mirror-image set of sheets of perforated materials arranged on either side of the housing axis, and wherein the sheets are arranged perpendicular to one of the first port center axis or the second port center axis. ### Claim 26 (depends on 22) The supercharger assembly of one of claim 22, wherein the noise-reducing material comprises a mirror-image set of intersecting sheets of perforated materials arranged on either side of the housing axis, and wherein the intersecting sheets are arranged so that a first set of the sheets are parallel to one of the first port center axis or the second port center axis, and so that a second set of the sheets are perpendicular to one of the first port center axis or the second port center axis. ### Claim 27 (depends on 23) The supercharger assembly of one of claim 23, wherein the noise-reducing material comprises a mirror-image set of sheets of perforated materials arranged on either side of the housing axis, and wherein the sheets are arranged parallel to one of the first port center axis or the second port center axis. ### Claim 28 (depends on 23) The supercharger assembly of one of claim 23, wherein the noise-reducing material comprises a mirror-image set of sheets of perforated materials arranged on either side of the housing axis, and wherein the sheets are arranged perpendicular to one of the first port center axis or the second port center axis. ### Claim 29 (depends on 23) The supercharger assembly of one of claim 23, wherein the noise-reducing material comprises a mirror-image set of intersecting sheets of perforated materials arranged on either side of the housing axis, and wherein the intersecting sheets are arranged so that a first set of the sheets are parallel to one of the first port center axis or the second port center axis, and so that a second set of the sheets are perpendicular to one of the first port center axis or the second port center axis.