Described is an internal combustion engine, in particular including a dual-circuit water cooling system, including a crankcase and at least one inlet and/or outlet rail which is/are situated upstream from the crankcase and receives a coolant communicating with this crankcase, at least one coolant-conducting cylinder head, and at least one outlet and/or inlet rail downstream from the cylinder head receiving a coolant communicating with the cylinder head.

A cooling water control valve device includes a housing and a valve. The housing includes a planar attachment surface, a first inlet port, a second inlet port, and at least one outlet port. The first inlet port and the second inlet port are open on the planar attachment surface. The housing is attached to the engine such that the first inlet port and the second inlet port are fluidly connected to a first outlet and a second outlet, respectively, and the planar attachment surface comes into contact with an outer wall of either one of an engine block or an engine head of the engine.

In an engine, a cylinder block and a cylinder head are connected with a crankcase in a forwardly inclined posture. A dual clutch connects or disconnects a transmission path of power of the engine to a transmission. An actuator chamber houses an actuator that controls a hydraulic pressure of the dual clutch. The actuator chamber is disposed on an upper surface of the cylinder block at a position posterior to the cylinder head and anterior to the crankcase in a vehicle longitudinal direction.

Methods and systems are provided for a water jacket diverter. In one example, the water jacket diverter may be formed by injection molding and includes features such as cut-outs, an inlet ledge, a continuous upper rail, and one or more fins. The water jacket diverter may increase coolant flow in an upper portion of the water jacket, thereby increasing a cooling efficiency at an upper region of a cylinder block.

A vehicle thermal management system includes an Integrated Thermal Management Valve (ITM) for receiving coolant through a coolant inlet connected to an engine coolant outlet of an engine, and for distributing the coolant flowing out toward a radiator through a coolant outlet flow path connected to a heat exchange system. The heat exchange system includes at least one among a heater core, an oil warmer, and an Auto Transmission Fluid (ATF) warmer and the radiator. The vehicle thermal management system includes: a water pump positioned at the front end of an engine coolant inlet of the engine; a coolant branch flow path branched from the front end of the engine coolant inlet to be connected to an Exhaust Gas Recirculation (EGR) cooler together with the coolant outlet flow path; and a Smart Single Valve (SSV) for adjusting a coolant flow in a coolant outlet flow path direction and an EGR cooler flow path direction on the coolant branch flow path.

Systems and methods are provided for management of a thermal system. A system for thermal management includes a thermal system with fluid conduits. A sensor is disposed to monitor an input parameter state of the thermal system. An actuator is configured to vary a flow in the fluid conduits. A controller is configured to receive a signal representative of the input parameter state; process an actuator state through a flow model of the thermal system to obtain an existing flow in the fluid conduits; process the existing flow through a thermal model of the thermal system to determine an input that reduces an error between a desired parameter state and the input parameter state; process the input through an inverse flow model to convert the input to a desired actuator state; and position the actuator in the desired actuator state.

A vehicle thermal management system includes an Integrated Thermal Management Valve (ITM) for receiving engine coolant through a coolant inlet connected to an engine coolant outlet of an engine, and for distributing the engine coolant flowing out toward a radiator through a coolant outlet flow path connected to a heater core and a radiator. The thermal management system includes a water pump positioned at the front end of an engine coolant inlet of the engine, a coolant branch flow path branched at the front end of the engine coolant inlet to be connected with an Exhaust Gas Recirculation (EGR) cooler. and a Smart Single Valve (SSV) for adjusting an engine coolant flow in the EGR cooler flow path direction on the coolant branch flow path.

An integrated flow control valve apparatus for controlling a flow rate of coolant in an engine cooling system for cooling an engine including a cylinder block and a cylinder head mounted above the cylinder block, includes a valve housing; a plurality of coolant ports formed at the valve housing and provided as inlets and outlets through which the coolant flows into and out of the valve housing; and valves configured for opening and closing the coolant ports, wherein the coolant ports include a first inlet port for introduction of the coolant from the cylinder block and a second inlet port for introduction of the coolant from the cylinder head into the valve housing; and the flow of the coolant at the first and second inlet ports is controlled by the valves configured to vary the flow of the coolant in the cylinder block and the cylinder head.

A cooling apparatus of an internal combustion engine according to the invention controls an activation of a flow rate changing valve such that a block water flow rate proportion when an engine output is relatively large in a range of the engine output equal to or larger than a predetermine engine output, is larger than the block water flow rate proportion when the engine output is relatively small in the range of the engine output equal to or larger than a predetermine engine output.

The cooling device according to the present invention includes an electric water pump for circulating cooling water through an internal combustion engine of a vehicle, and controls the discharge flow rate of the electric water pump as follows. Until the cooling water temperature. TW reaches a warm-up completion determination temperature, the cooling device increases the discharge flow rate along with an increase of the cooling water temperature TW. After the cooling water temperature TW reaches the warm-up completion determination temperature, the cooling device controls the discharge flow rate so as to bring the combustion chamber wall temperature TCYL toward a target temperature. Thereby, the cooling device can warm up the internal combustion engine more efficiently, and improve the combustion performance of the internal combustion engine after the completion of warm-up.