# US 10,119,451 B2 · Internal combustion engine cooling > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,451 B2 - Document ID: US10119451B2 - Status: Granted - Kind: B2 - Application number: 15/216,252 - Filed: 2016-07-21 - Published: 2017-01-26 - Granted: 2018-11-06 - Earliest claimed: 2015-07-22 - Assignees: GM Global Technology Operations LLC - Applicants: GM Global Technology Operations LLC - Inventors: Peter Seeger - Web page: https://patentgrep.com/patent/US10119451B2 ## CPC - F01P 3/02: Arrangements for cooling cylinders or cylinder heads - F01P 2007/146: {using valves} - 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 internal combustion engine for a motor vehicle drive includes a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket. A valve is operable for adjusting a flow through a multi-channel coolant inlet. In particular, the valve provides continuous adjustment of a cross section, through which a fluid can flow of a multi-channel exhaust coolant outlet for admitting a flow to the exhaust water jacket and cross-section, through which a fluid can flow of a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket. ## Claims ### Claim 1 An internal combustion engine for a motor vehicle drive comprising: a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket; and a valve configured to selectively admit a coolant flow through a multi-channel coolant inlet by adjusting a cross section through which coolant can flow to a multi-channel exhaust coolant outlet for admitting the coolant flow to the exhaust water jacket and through which coolant can flow to a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket. ### Claim 2 (depends on 1) The internal combustion engine according to claim 1, wherein the cylinder head water jacket is fluidically connected in a multi-channel manner to at least one of the exhaust water jacket or the combustion chamber water jacket at a distance from the valve and has a coolant outlet at a distance from the valve for removing coolant. ### Claim 3 (depends on 1) The internal combustion engine according to claim 1, wherein the valve comprises a rotary slide rotatably supported on a bearing for adjusting the cross section of the exhaust coolant outlet and the combustion chamber coolant outlet, wherein the cross-sections by turning the rotary slide. ### Claim 4 (depends on 3) The internal combustion engine according to claim 3, wherein the bearing is integrally formed with the housing and the valve is arranged therein. ### Claim 5 (depends on 3) The internal combustion engine according to claim 3, wherein the rotary slide comprises at least two axial sections at a distance from one another, each section having an open circumferential section and an adjoining closed circumferential section for at least partially closing at least one of an exhaust through opening of the exhaust coolant outlet or a combustion chamber through opening of the combustion chamber coolant outlet. ### Claim 6 (depends on 3) The internal combustion engine according to claim 3 wherein the rotary slide comprises at least two axial sections at a distance from one another, each axial section having an open circumferential section and an adjoining closed circumferential section for the at least partial closing of at least one through opening of the coolant inlet of the valve. ### Claim 7 (depends on 1) The internal combustion engine according to claim 1 further comprising an actuator for adjusting the valve. ### Claim 8 (depends on 1) The internal combustion engine according to claim 1, wherein the valve is positionable between a first valve position such that the exhaust coolant outlet has a maximum cross-section and the combustion chamber coolant outlet of the valve has a minimum cross-section which coolant can flow, and a second position such that the exhaust coolant outlet has a minimum cross-section and the combustion chamber coolant outlet has a maximum cross-section through which coolant can flow. ### Claim 9 (depends on 8) The internal combustion engine according to claim 8, wherein the valve is positionable in a third position such that the exhaust coolant outlet an intermediate cross-section which is smaller than the maximum and larger than the minimum cross section of the exhaust coolant outlet, and the combustion chamber coolant outlet has an intermediate cross-section that is larger than the minimum and smaller than the maximum cross of the combustion chamber coolant outlet. ### Claim 10 (depends on 9) The internal combustion engine according to claim 9, wherein a coolant inlet of the valve is open in the first, second, and third positions and closed in a fourth position of the valve. ### Claim 11 (depends on 1) The internal combustion engine according to claim 1, wherein at least one of the cylinder head water jacket, the exhaust water jacket and the combustion chamber water jacket is formed integrally with the housing. ### Claim 12 (depends on 11) The internal combustion engine according to claim 11 wherein at least two water jackets are formed integrally with the housing. ### Claim 13 (depends on 1) The internal combustion engine according to claim 1, wherein at least one of the cylinder head water jacket, the exhaust water jacket and the combustion chamber water jacket is formed separately from the housing. ### Claim 14 (depends on 1) The internal combustion engine according to claim 1, wherein the cylinder head water jacket surrounds at least one cylinder head of the internal combustion engine over at least part of its extent and the combustion chamber water jacket surrounds at least one combustion chamber of the internal combustion engine over at least part of its extent, and the exhaust water jacket surrounds an exhaust manifold of the internal combustion engine over a part of its extent. ### Claim 15 (depends on 14) The internal combustion engine according to claim 14, wherein the exhaust manifold is integrated with the housing. ### Claim 16 (depends on 1) The internal combustion engine according to claim 1, wherein the internal combustion engine is a charged Diesel engine or is a charged petrol engine. ### Claim 17 (depends on 1) A motor vehicle comprising an internal combustion engine according to claim 1. ### Claim 18 A method of cooling an internal combustion engine having a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket, and a valve configured to selectively admit a coolant flow through a multi-channel coolant inlet by adjusting a cross section through which coolant can flow to a multi-channel exhaust coolant outlet for admitting the coolant flow to the exhaust water jacket and through which coolant can flow to a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket, the method comprising at least partially automatically adjusting the valve as a function of an operating temperature of the internal combustion engine. ### Claim 19 (depends on 18) The method according to claim 18, where in the operating temperature is selected from the group consisting of a temperature of the housing, a temperature of an exhaust of the internal combustion engine, a temperature of the coolant or a combination thereof. ### Claim 20 An internal combustion engine for a motor vehicle drive comprising: a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket; and a valve configured to selectively admit a coolant flow through a multi-channel coolant inlet by adjusting a cross section through which coolant can flow to a multi-channel exhaust coolant outlet for admitting the coolant flow to the exhaust water jacket and through which coolant can flow to a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket, wherein the valve comprises a rotary slide rotatably supported on a bearing for adjusting the cross section of the exhaust coolant outlet and the combustion chamber coolant outlet, wherein the cross-sections by turning the rotary slide and wherein the valve is positionable such that open sections of the rotary slide partially covers through openings of the combustion chamber coolant outlet and through openings of the exhaust coolant outlet so that fluid can flow through the exhaust coolant outlet and the combustion chamber coolant outlet.