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Kuhlbach, DE

Kai Kuhlbach, Bergisch Gladbach DE

Patent application numberDescriptionPublished
20110132296Engine Arrangement with Integrated Exhaust Manifold - An integration of the exhaust manifold into the cylinder head, initially for turbo application, is proposed, and an associated cooling concept is provided. This serves to achieve significant improvements in characteristic features whilst at the same time affording significantly reduced system costs. The advantages of this application are demonstrated taking a four-cylinder petrol engine constructed with direct fuel injection and turbo-charging as an example. Particularly worth emphasizing are the reduced fuel consumption in the ranges at or close to full load, reduced CO06-09-2011

Kai Sabastian Kuhlbach, Bergisch Gladbach DE

Patent application numberDescriptionPublished
20100175374INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGING - Disclosed is a turbocharged internal combustion engine (07-15-2010

Kai Sebastian Kuhlbach, Bergisch Gladbach DE

Patent application numberDescriptionPublished
20080308050CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to a cylinder head (12-18-2008
20100083920CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE - A cylinder head adapted to be mounted to a cylinder block of an internal combustion engine has a cooling jacket at least partially integrated in the cylinder head. The engine has two groups of cylinders: inside cylinders and outside cylinders. Each cylinder has at least one exhaust port, each leading to an individual duct. Individual ducts of outside cylinders converge to form an outside combined duct. In a four-cylinder, individual ducts of inside cylinders converge to form an inside combined duct with the inside combined duct remaining separated from the outside combined duct by the cooling jacket. The inside combined duct is farther away from the mounting surface of the cylinder head to the cylinder block than the outside combined duct. The cooling jacket includes: upper, middle, and lower cooling jackets and connectors between the upper and lower cooling jackets.04-08-2010
20100229819CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE - A cylinder head has at least three cylinders each coupled to at least one exhaust port, individual exhaust ducts coupled to each of the exhaust ports, and a combined exhaust duct coupling all individual exhaust ducts. The combined exhaust duct emerges from the cylinder head at a location displaced longitudinally from a center of the cylinder head.09-16-2010
20100269878INTERNAL COMBUSTION ENGINE WITH THERMOELECTRIC GENERATOR - A cylinder head has at least two exhaust gas ducts, an exhaust gas collector collecting exhaust gas from the exhaust gas ducts, a coolant channel around the exhaust gas ducts and the exhaust gas collector, and a thermoelectric element in thermal contact with the exhaust gas duct, the exhaust gas collector, and the coolant channel. The thermoelectric element is arranged around the periphery of the exhaust gas duct and the exhaust gas collector.10-28-2010
20110056456CYLINDER HEAD WITH OIL RETURN - Engine oil may pool in various locations in the cylinder head near the valves and underneath the camshaft. Rather than directly conducting the oil to the oil return passages, the oil is conducted to a surface proximate the exhaust ducts before being conducted to the oil return passage so that the oil is readily warmed up during a cold start by the contact with a surface in the cylinder head proximate exhaust ducts. The provision of such a surface proximate exhaust ducts is facilitated by the integrated exhaust manifold design in which the exhaust ducts are merged prior to exiting the cylinder head. By rapidly heating the oil, the oil's viscosity decreases, thereby reducing friction and improving fuel efficiency.03-10-2011
20110079187HEATING ENGINE OIL IN AN INTERNAL COMBUSTION ENGINE - The disclosure relates to an internal combustion engine having a cylinder head and cylinder block serving as an upper crankcase portion for holding a crankshaft in multiple bearings. The engine has an oil pump for feeding engine oil to the cylinder head prior to supplying the multiple bearings in the cylinder block.04-07-2011
20110197832COOLANT JACKETS FOR AN INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROL - An internal combustion engine is provided. The internal combustion engine includes a cylinder block having a cooling jacket and a cylinder head having two cooling jackets. In one example, the internal combustion engine may be operated so as to reduce engine friction and emissions during cold engine starts.08-18-2011
20110271916Internal Combustion Engine with Liquid Cooling - A system for providing cooling to at least one cylinder of an engine is disclosed. The system comprises at least one coolant jacket in a cylinder head arranged on an inlet side of a cylinder and at least one coolant jacket in the cylinder head arranged on an outlet side of the cylinder. The outlet-side coolant jacket may be part of a water cooling circuit, while the inlet-side coolant jacket may be part of oil circuit.11-10-2011
20110296834SEPARATELY COOLED TURBOCHARGER FOR MAINTAINING A NO-FLOW STRATEGY OF AN ENGINE BLOCK COOLANT JACKET - An internal combustion engine is provided herein. The internal combustion engine may include a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing. The internal combustion engine may further include a cooling system having an engine block coolant jacket fluidly coupled to a pump, a cylinder head coolant jacket fluidly coupled to the pump, and a turbine coolant passage traversing the turbine housing and fluidly coupled to the pump and bypassing the engine block coolant jacket.12-08-2011
20120055424CYLINDER HEAD WITH TURBINE - The disclosure relates to a cylinder head having at least one cylinder. The cylinder head comprises a radial turbine including a rotor arranged in a turbine casing and rotatably mounted on a shaft, an overall exhaust line which opens into an inlet zone of the radial turbine, said zone merging into a flow duct which carries exhaust gas, and at least one coolant duct integrated into the turbine casing to form a cooling system, the at least one coolant duct extending in a spiral around the shaft in the casing, wherein the at least one coolant duct extends circumferentially around and at a distance from the flow duct over an angle α, where α≦45°.03-08-2012
20120060778CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE - A cylinder head adapted to be mounted to a cylinder block of an internal combustion engine has a cooling jacket at least partially integrated in the cylinder head. The engine has two groups of cylinders: inside cylinders and outside cylinders. Each cylinder has at least one exhaust port, each leading to an individual duct. Individual ducts of outside cylinders converge to form an outside combined duct. In a four-cylinder engine or cylinder head, individual ducts of inside cylinders converge to form an inside combined duct with the inside combined duct remaining separated from the outside combined duct by the cooling jacket. The inside combined duct is farther away from the mounting surface of the cylinder head to the cylinder block than the outside combined duct. The cooling jacket includes: upper, middle, and lower cooling jackets and connectors between the upper and lower cooling jackets.03-15-2012
20120067306INTERNAL COMBUSTION ENGINE WITH LIQUID-COOLED TURBINE - Embodiments for cooling a turbine of an engine are provided. In one example embodiment, an internal combustion engine comprises a turbocharger including a turbine having a coolant jacket integrated in a housing of the turbine, and an oil circuit coupled to the coolant jacket of the turbine. By cooling the turbine with the oil circuit, the turbine may be constructed from less-heat resistant materials.03-22-2012

Patent applications by Kai Sebastian Kuhlbach, Bergisch Gladbach DE

Kai Sebastian Kuhlbach, Koeln-Merkenich DE

Patent application numberDescriptionPublished
20110041498EXHAUST GAS SYSTEM - An exhaust gas system configured for an internal combustion engine includes a cylinder head having at least two cylinders, a single exhaust duct emerging from the cylinder head, an individual exhaust duct provided between each cylinder and the single exhaust duct, and a reservoir of fixed volume integrated in the cylinder head and coupled to the single exhaust duct via a connecting duct. A reservoir valve is provided in the connecting duct in some embodiments. According to one embodiment, a method is disclosed in which the reservoir valve is commanded to an open position when flow through the single exhaust duct is large and commanded to a closed position when flowrate through the single exhaust duct is small. In some embodiments, a turbine, with a selectable volume upstream of the impeller, is coupled to the cylinder head.02-24-2011

Kai Sebastian Kuhlbach, Bergisch Gladback DE

Patent application numberDescriptionPublished
20120085299INTERNAL COMBUSTION ENGINE WITH LIQUID COOLING - Example embodiments for reducing thermal load in one or more exhaust gas lines are provided. One embodiment includes an internal combustion engine with liquid cooling, comprising at least one exhaust gas line, at least one coolant jacket, and a common boundary wall separating the at least one exhaust gas line and the at least one coolant jacket, wherein the common boundary wall includes a surface structure provided on sides of the coolant jacket in at least one locally limited region. In this way, the surface structure on the sides of the coolant jacket may increase heat transfer to reduce thermal loading.04-12-2012