# US 2019/0170056 A1 · Compressor housing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170056 A1 - Document ID: US20190170056A1 - Status: Published application - Kind: A1 - Application number: 15/829,765 - Filed: 2017-12-01 - Published: 2019-06-06 - Earliest claimed: 2017-12-01 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Liangjun Hu; David Curtis Ives; Eric Warren Curtis; Jianwen James Yi - Web page: https://patentgrep.com/patent/US20190170056A1 ## CPC - F02B 29/0443: {Layout of the coolant or refrigerant circuit} - F01D 5/046: {Heating, heat insulation or cooling means} - F01D 25/125: {of bearings} - F01D 25/14: Casings modified therefor (double casings F01D25/26) - F02B 37/00: Engines characterised by provision of pumps driven at least for part of the time by exhaust - F02M 26/05: High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor - F04D 29/4206: {especially adapted for elastic fluid pumps} - F04D 29/5826: {Cooling at least part of the working fluid in a heat exchanger} - F04D 29/584: {cooling or heating the machine (F04D29/5846, F04D29/5853 take precedence)} - F05D 2220/40: in turbochargers - F05D 2260/607: Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles - Y02T 10/12: Improving ICE efficiencies - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - 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 turbocharger compressor and method are provided including a first coolant passage in thermal contact with an inlet configured to direct the charge gas toward an impeller; and second, third, and fourth coolant passages respectively in thermal contact with impeller, volute, and diffuser regions. All of the coolant passages are fluidically coupled with a heat exchanger. One or more of the coolant passages are configured such that coolant flows in an upstream direction relative to a general flow direction of charge gas through the compressor. ## Claims ### Claim 1 A turbocharger compressor comprising: an inlet configured to intake a charge gas at a first end and to direct the charge gas toward an impeller, a first coolant passage in thermally conductive contact with the charge gas in the inlet and fluidically coupled with a heat exchanger; an impeller region surrounding the impeller downstream from the inlet, a second coolant passage in thermally conductive contact with the impeller region and fluidically coupled with the heat exchanger; a diffuser region downstream from the impeller region, a third coolant passage in thermally conductive contact with the diffuser region and fluidically coupled with the heat exchanger; and a volute region downstream from the diffuser region, a fourth coolant passage in thermally conductive contact with the volute region and fluidically coupled with the heat exchanger. ### Claim 2 (depends on 1) The turbocharger compressor of claim 1, wherein one or more of the first and second coolant passages are configured such that coolant flows in an upstream direction relative to a general flow direction of charge gas through the compressor. ### Claim 3 (depends on 1) The turbocharger compressor of claim 1, wherein the inlet includes a ported shroud wherein under particular conditions the charge gas flows through one or more ports and between the shroud and an inlet wall in an upstream direction relative to a general flow of charge gas through the inlet, and wherein a coolant flows through the first coolant passage in the upstream direction. ### Claim 4 (depends on 1) The turbocharger compressor of claim 1, wherein one or more of the first second third and fourth coolant passages are fluidically coupled with a water jacket configured to cool a bearing element configured to support the impeller for rotation. ### Claim 5 (depends on 1) The turbocharger compressor of claim 1, wherein the first second third and fourth coolant passages are coupled with the heat exchanger to receive a substantially parallel flow of coolant. ### Claim 6 (depends on 1) The turbocharger compressor of claim 1, wherein two or more coolant passages receive flow of coolant sequentially first through one of the two or more coolant passages and then through the other. ### Claim 7 A compressor housing for compressing charge air for an internal combustion engine comprising: an inlet region having an opening at an upstream side and having a downstream side at an inducer area of an impeller blade; an impeller region surrounding the impeller blade downstream from the inlet region; a diffuser region downstream from the impeller region; a volute region downstream from the diffuser region; a coolant passage in the inlet region in thermally conductive contact with the charge air within the inlet region wherein a coolant fluid flows in an upstream direction relative to a general flow direction of the charge air. ### Claim 8 (depends on 7) The compressor of claim 7, wherein under surge, or near surge, conditions charge air tends to flow adjacent an inner surface of the inlet region in the upstream direction as a recirculated flow, and wherein the coolant fluid flow in the upstream direction absorbs heat from the recirculated flow. ### Claim 9 (depends on 7) The compressor of claim 7, further comprising: a shroud in the inlet region spaced from an inner surface of the inlet region defining a channel therebetween, openings through the shroud, and wherein fluid, at least under some operating conditions of the compressor flows through the openings and through the channel in the upstream direction as a recirculated flow, and wherein the coolant fluid flow in the upstream direction absorbs heat from the recirculated flow. ### Claim 10 (depends on 7) The compressor of claim 7, further comprising: a second coolant passage in thermally conductive contact with the impeller region; a third coolant passage in thermally conductive contact with the diffuser region; and a fourth coolant passage in thermally conductive contact with the volute region. ### Claim 11 (depends on 7) The compressor of claim 7, further comprising a bearing housing to house a bearing to support the impeller for rotation, and a water jacket to house a coolant in thermally conductive contact with the bearing, and wherein the coolant passage is fluidically coupled with the water jacket. ### Claim 12 (depends on 7) The compressor of claim 7, wherein at least the second third and fourth coolant passages are fluidically coupled such that the coolant fluid flows sequentially from the second to the third then to the fourth coolant passage. ### Claim 13 (depends on 7) The compressor of claim 7, wherein at least the second third and fourth coolant passages are each fluidically coupled to a coolant line such that the coolant fluid flows in substantially parallel paths to each of the second third and fourth coolant passages. ### Claim 14 (depends on 7) The compressor of claim 7, wherein each of the first second third and fourth coolant passages are each fluidically coupled to a coolant line such that the coolant fluid flows in substantially parallel paths to each of the first second third and fourth coolant passages. ### Claim 15 A method a compressor an engine in a hybrid, comprising: passing a coolant through a first passage in thermal contact with an inlet passage interior surface in an upstream direction relative to a general flow direction of the charge air; absorbing heat from at least a recirculating portion of charge air flow; and moving the absorbed heat away from the inlet passage via the coolant to a heat exchanger. ### Claim 16 (depends on 15) The method of claim 15, further comprising passing the coolant through a second passage in thermal contact with an impeller region of the compressor, absorbing heat from the impeller region, and moving the absorbed heat via the coolant to the heat exchanger, wherein the vehicle is an autonomous vehicle and where one or more valves of the turbocharger are adjusted to a first position while operating in an autonomous driving mode including no passengers in the vehicle, and the one or more valves are adjusted to a second position while operating in a non-autonomous mode ### Claim 17 (depends on 15) The method of claim 15, further comprising passing a coolant through a third passage in thermal contact with an diffuser region of the compressor, absorbing heat from the diffuser region, and moving the absorbed heat via the coolant to the heat exchanger. ### Claim 18 (depends on 15) The method of claim 15, further comprising passing a coolant through a fourth passage in thermal contact with an volute region of the compressor, absorbing heat from the volute region, and moving the absorbed heat via the coolant to the heat exchanger. ### Claim 19 (depends on 15) The method of claim 15, further comprising; passing the coolant through a second passage in thermal contact with an impeller region of the compressor, absorbing heat from the impeller region; passing the coolant through a third passage in thermal contact with an diffuser region of the compressor, absorbing heat from the diffuser region; passing the coolant through a fourth passage in thermal contact with a volute region of the compressor, absorbing heat from the volute region; and moving the absorbed heat via the coolant to the heat exchanger. ### Claim 20 (depends on 15) The method of claim 15, wherein the passing the coolant through the first passage in thermal contact with the inlet passage interior surface includes directing the coolant fluid from a cooling fluid conduit coupled with a coolant jacket configured to cool a bearing supporting a shaft disposed for rotation with a turbine positioned within the compressor.