# US 2016/0252002 A1 · Engine assembly including a coolant gallery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0252002 A1 - Document ID: US20160252002A1 - Status: Published application - Kind: A1 - Application number: 14/951,714 - Filed: 2015-11-25 - Published: 2016-09-01 - Earliest claimed: 2015-02-27 - Assignees: GM Global Technology Operations LLC - Applicants: GM Global Technology Operations LLC - Inventors: Akram R. Zahdeh - Web page: https://patentgrep.com/patent/US20160252002A1 ## CPC - F01P 3/12: Arrangements for cooling other engine or machine parts - F01P 3/02: Arrangements for cooling cylinders or cylinder heads - F01P 2060/12: Turbo charger - F01P 2060/16: Outlet manifold - 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) ## Abstract An engine assembly includes a turbocharger and a fluid conduit thermally coupled to the turbocharger such that the coolant flowing through the fluid conduit can extract heat from the turbocharger. The engine assembly further includes an exhaust gas recirculation (EGR) system and a second fluid conduit thermally coupled to the EGR system such that the coolant flowing through the second fluid conduit can extract heat from the EGR system. The engine assembly also includes an engine head defining a coolant gallery extending therethrough. The coolant gallery is in fluid communication with the first fluid conduit and the second fluid conduit. Further, the engine assembly includes an exhaust manifold integrated with the engine head. The coolant gallery is thermally coupled to the exhaust manifold such that the coolant flowing through the coolant gallery can extract heat from the exhaust manifold. ## Claims ### Claim 1 An engine assembly, comprising: a turbocharger; a first fluid conduit configured to carry a coolant, wherein the first fluid conduit is thermally coupled to the turbocharger such that the coolant flowing through the first fluid conduit can extract heat from the turbocharger; an exhaust gas recirculation (EGR) system; a second fluid conduit configured to carry the coolant, wherein the second fluid conduit is thermally coupled to the EGR system such that the coolant flowing through the second fluid conduit can extract heat from the EGR system; and an engine head defining a coolant gallery extending therethrough, wherein the coolant gallery is in fluid communication with the first fluid conduit and the second fluid conduit in order to allow the coolant to flow from the first fluid conduit and the second fluid conduit to the coolant gallery; and an exhaust manifold integrated with the engine head, wherein the coolant gallery is thermally coupled to the exhaust manifold such that the coolant flowing through the coolant gallery can extract heat from the exhaust manifold. ### Claim 2 (depends on 1) The engine assembly of claim 1, wherein the EGR system includes an EGR cooler, and the coolant gallery includes a first inlet in fluid communication with the EGR cooler in order to allow fluid flow of the coolant from the EGR cooler to the coolant gallery. ### Claim 3 (depends on 2) The engine assembly of claim 2, wherein the coolant gallery defines a second inlet in fluid communication with the first fluid conduit in order to allow fluid flow of the coolant from the first fluid conduit to the coolant gallery. ### Claim 4 (depends on 3) The engine assembly of claim 3, wherein the coolant gallery defines an outlet in fluid communication with the first inlet and the second inlet in order to allow the coolant to flow toward the outlet. ### Claim 5 (depends on 4) The engine assembly of claim 4, further comprising a coolant manifold fluidly interconnecting the first fluid conduit and the second inlet. ### Claim 6 (depends on 5) The engine assembly of claim 5, further comprising a surge tank in fluid communication with the coolant manifold, wherein the coolant manifold allows vapor to vent into the surge tank. ### Claim 7 (depends on 6) The engine assembly of claim 6, further comprising a venting conduit fluidly interconnecting the surge tank and the coolant manifold. ### Claim 8 (depends on 7) The engine assembly of claim 7, wherein the engine head includes a head body, and the coolant gallery is a hole extending through the head body. ### Claim 9 (depends on 8) The engine assembly of claim 8, wherein the hole extends from the first inlet to the outlet. ### Claim 10 (depends on 9) The engine assembly of claim 9, wherein the second inlet is located between the first inlet and the outlet. ### Claim 11 (depends on 10) The engine assembly of claim 10, wherein the engine head includes a first flange protruding from the head body, and the first inlet is formed by the first flange. ### Claim 12 (depends on 11) The engine assembly of claim 11, wherein the head includes a second flange protruding from the head body, and the second inlet is formed by the second flange. ### Claim 13 (depends on 12) The engine assembly of claim 12, wherein the coolant manifold is directly coupled to the second flange. ### Claim 14 (depends on 13) The engine assembly of claim 13, wherein the second fluid conduit is directly coupled to the second flange in order to fluidly couple the second fluid conduit to the first inlet. ### Claim 15 An engine head, comprising: a head body defining a coolant gallery extending therethrough, wherein the coolant gallery defines: a first inlet configured to be fluidly coupled to an exhaust gas recirculation (EGR) cooler; a second inlet configured to be fluidly coupled to a first fluid conduit, wherein the first fluid conduit is thermally coupled to a turbocharger; and an outlet in fluid communication with the first inlet and the second inlet, wherein the second inlet is located between the first inlet and the outlet. ### Claim 16 (depends on 15) The engine head of claim 15, wherein the coolant gallery is a hole extending through the head body. ### Claim 17 (depends on 16) The engine head of claim 16, wherein the hole extends from the first inlet to the outlet. ### Claim 18 (depends on 17) The engine head of claim 17, further comprising a first flange protruding from the head body, and the first inlet is formed by the first flange. ### Claim 19 (depends on 18) The engine head of claim 18, further comprising a second flange protruding from the head body, and the second inlet is formed by the second flange.