# US 10,767,539 B2 · Arrangement and method for tempering exhaust gas recirculation devices, and motor vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,539 B2 - Document ID: US10767539B2 - Status: Granted - Kind: B2 - Application number: 16/393,661 - Filed: 2019-04-24 - Published: 2019-10-31 - Granted: 2020-09-08 - Earliest claimed: 2018-04-25 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Hans Guenter Quix; Andreas Kuske; Christian Winge Vigild - Web page: https://patentgrep.com/patent/US10767539B2 ## CPC - F01N 5/02: the devices using heat - F02B 29/0418: {the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface} - F02B 29/0437: {Liquid cooled heat exchangers} - B60H 2001/00949: {comprising additional heating/cooling sources, e.g. second evaporator} - F01P 2060/02: Intercooler - Y02T 10/12: Improving ICE efficiencies - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - F01P: COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K11/00; heat-transfer, heat-exchange or heat-storage materials C09K5/00; {cooling of gas-turbine engines F02C7/12}; heat exchange in general, radiators F28) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Methods and systems are provided for a tempering circuit. A system comprises where the tempering circuit is fluidly coupled to each of an engine cooling circuit, an EGR cooler, and an EGR valve. The tempering circuit comprising a plurality of control valves for selectively adjusting tempering medium flow to various portions of the tempering circuit. ## Claims ### Claim 1 A system, comprising: a tempering circuit for flowing a tempering medium from a container to an engine cooling circuit, an EGR cooler, and an EGR valve. ### Claim 2 (depends on 1) The system of claim 1, wherein the tempering circuit comprises a base circuit, a heating circuit, and a storing circuit, wherein the base circuit is fluidly coupled to the engine cooling circuit and the EGR cooler, wherein the heating circuit is fluidly coupled to the EGR valve and the EGR cooler, wherein the storing circuit is fluidly coupled to the engine cooling circuit and the container. ### Claim 3 (depends on 1) The system of claim 1, wherein the tempering circuit comprises a first control valve, a second control valve, and a third control valve for partitioning tempering medium flow to each of the container, the engine cooling circuit, the EGR cooler, and the EGR valve. ### Claim 4 (depends on 1) The system of claim 1, wherein the container comprises a heat storing medium, and where the tempering medium is heated by the heat storing medium during a cold-start of an engine, and where the tempering medium heats the heat storing medium outside of the cold-start. ### Claim 5 (depends on 1) The system of claim 1, wherein the EGR valve and the EGR cooler are arranged in series along the tempering circuit. ### Claim 6 (depends on 1) The system of claim 1, wherein the EGR valve and the EGR cooler are arranged in parallel along the tempering circuit. ### Claim 7 (depends on 6) The system of claim 6, wherein during a first condition of a heating mode, the tempering medium flows to each of the EGR valve and the EGR cooler, during a second condition of the heating mode, the tempering medium flows to only the EGR valve and not to the EGR cooler, and during a third condition of the heating mode, the tempering medium flows to only the EGR cooler and not the EGR valve. ### Claim 8 (depends on 7) The system of claim 7, wherein the heating mode is selected during a cold-start of an engine. ### Claim 9 A vehicle system, comprising: an engine comprising an engine cooling circuit; an exhaust-gas passage shaped to receive exhaust gas from the engine, wherein an exhaust-gas recirculation (EGR) passage branches from the exhaust-gas passage and directs exhaust-gas to an intake passage shaped to flow gases to the engine, wherein the EGR passage comprises a cooler and an EGR valve; a container comprising a heat storing medium; a tempering circuit fluidly coupled to each of the container, the engine cooling circuit, the cooler, and the EGR valve; and a controller with computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to: flow a tempering fluid to each of the container, the engine cooling circuit, the cooler, and the EGR valve during a heating mode; flow the tempering fluid to only the engine cooling circuit and the cooler during a cooling mode; flow the tempering fluid to only the container and the engine cooling circuit during a storing mode; and flow the tempering fluid to only the container, the engine cooling circuit, and the cooler during a combination mode. ### Claim 10 (depends on 9) The vehicle system of claim 9, wherein the tempering circuit is divided into a base circuit, a heating circuit, and a storing circuit. ### Claim 11 (depends on 10) The vehicle system of claim 10, wherein the heating mode comprises flowing the tempering fluid through each of the base circuit, the heating circuit, and the storing circuit. ### Claim 12 (depends on 10) The vehicle system of claim 10, wherein the cooling mode comprises flowing tempering fluid through only the base circuit. ### Claim 13 (depends on 10) The vehicle system of claim 10, wherein the storing mode comprises flowing tempering fluid through only the storing circuit. ### Claim 14 (depends on 10) The vehicle system of claim 10, wherein the combination mode comprises flowing tempering fluid through the storing circuit and the base circuit. ### Claim 15 (depends on 10) The vehicle system of claim 10, wherein the base circuit is fluidly coupled to the engine cooling circuit and the cooler, wherein the heating circuit is fluidly coupled to the EGR valve and the cooler, wherein the storing circuit is fluidly coupled to the engine cooling circuit and the container. ### Claim 16 (depends on 10) The vehicle system of claim 10, further comprising a first control valve for adjusting tempering fluid flow from the storage container to the EGR valve and the engine cooling circuit, a second control valve for adjusting tempering fluid flow from the engine cooling circuit to the cooler, and a third control valve for adjusting tempering fluid flow from the storage container to the cooler. ### Claim 17 A method comprising: flowing a tempering medium during a heating mode through a tempering circuit fluidly coupled to an engine cooling circuit, an EGR valve, and an EGR cooler during an engine cold-start; flowing the tempering medium during a storing mode from the engine cooling circuit to a container housing a heat storage medium outside of the engine cold-start; and flowing the tempering medium during a cooling mode between the engine cooling circuit and the EGR cooler outside the engine cold-start when EGR is desired. ### Claim 18 (depends on 17) The method of claim 17, wherein the tempering medium is directed to the EGR valve during the heating mode if one or more of EGR is desired or the engine temperature is above a lower temperature of a range, wherein the tempering medium does not flow to the EGR valve during the heating mode if EGR is not desired and the engine temperature is less than the lower temperature of the range. ### Claim 19 (depends on 17) The method of claim 17, wherein the heating mode further comprises flowing the tempering fluid to only the EGR valve and not the EGR cooler, to only the EGR cooler and not the EGR valve, and to both the EGR valve and the EGR cooler. ### Claim 20 (depends on 17) The method of claim 17, further comprising a combination mode comprising each of the cooling mode and the storing mode.