Patent application number | Description | Published |
20120316760 | METHOD FOR OPERATING AN APPLIED-IGNITION INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION - Embodiments for operating an engine with direct injection are provided. In one example, a method for operating an applied-ignition internal combustion engine having at least one cylinder and direct injection comprises raising a component temperature of an injection device of the at least one cylinder at least locally in a region of a catalytic coating in order to initiate and assist oxidation of coking residues. Thus, deposits of coking residues may be counteracted even in part-load operation. | 12-13-2012 |
20130233275 | APPLIED-IGNITION INTERNAL COMBUSTION ENGINE WITH CATALYTICALLY COATED INJECTION DEVICE, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Systems and methods are provided for reducing coking residues on an injection device of an applied-ignition, direct injection engine. An example system comprises an injection device; an electric heating device integrated with the injection device; a catalytic coating on a surface of the injection device; and a controller suitable to initiate a cleaning mode of the injection device wherein the electric heating device raises the temperature of the injection device. Heating the injection device allows coking residues on the injection device to oxidize in the presence of the catalytic coating. | 09-12-2013 |
20130269340 | TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A turbocharger for an internal combustion engine includes an oil-lubricated bearing, a feed line for the oil and a throughflow limiter for the oil. | 10-17-2013 |
20130280032 | TURBOCHARGER ARRANGEMENT FOR AN INTERNAL COMBUSTION ENGINE - A turbocharger arrangement in an internal combustion engine is provided. The turbocharger arrangement includes a turbocharger housing surrounding a sealed inner space and a shaft extending through the turbocharger housing. The turbocharger arrangement further includes a turbine wheel arranged on the shaft and driving a compressor unit, a bearing arrangement mounting the shaft in the turbocharger housing, an oil supply device lubricating the bearing arrangement, and a pressure changing unit in fluidic communication with the sealed inner space configured to adjust the pressure in the sealed inner space based on engine operating conditions. | 10-24-2013 |
20130332052 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - The disclosure relates to a method for operating an internal combustion engine having a plurality of cylinders, the method comprising, during one working cycle, distributing fuel for each cylinder of the plurality of cylinders among a plurality of injection processes according to settable split factors which respectively define a setpoint fuel mass and/or injection duration and time setting of each respective injection process for the plurality of individual injection processes, wherein random variation is carried out for at least one injection process. | 12-12-2013 |
20140039780 | INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION AND REDUCED PARTICULATE EMISSIONS - Methods are provided for an engine including modifying fuel injection timing based on engine operating conditions. A delay time period calculation may be based on a comparison of a first engine load with a second engine load. Further, a modified injection start time, based on a delay time period, may include injecting fuel during the compression cycle of an engine. | 02-06-2014 |
20140048035 | INJECTION VALVE - An injection valve for injecting fuel into a combustion chamber of an internal combustion engine comprises a valve seat, a valve element, at least one injection opening formed in the valve seat and leading to the combustion chamber, the at least one injection opening opened or closed by a stroke motion of the valve element, a catalytic coating provided in a region of the injection valve which faces the combustion chamber, and at least one protuberance which is elongated in a direction of the combustion chamber and projects into the combustion chamber. | 02-20-2014 |
20140309906 | PRESSURE DETERMINING METHOD AND MOTOR VEHICLE - A pressure determining method is provided for a fuel distribution rail of an injection system of a motor vehicle comprising maximizing the fuel rail pressure to minimize particulate emissions of the engine. The method determines a setpoint pressure based on a calculation pressure being determined from a sum of a combustion chamber pressure and a square of a ratio of a fuel mass component and a pulse width, wherein the calculation pressure is output, at least temporarily, as the setpoint pressure. | 10-16-2014 |
20150081195 | METHOD FOR CONTROLLING FUEL INJECTION AND FUEL INJECTION SYSTEM - A system and method for controlling fuel injection and a fuel injection system, wherein the fuel injection system comprises a fuel pump and a plurality of injection valves, each connected to a cylinder of an internal combustion engine, wherein the fuel pump and/or the injection valves produce pressure waves that cause fuel pressure fluctuations, and wherein depending on a respective current demanded fuel quantity in the internal combustion engine the fuel injection quantity is reduced or increased by using at least one actuator to produce additional pressure waves in the fuel injection system that modify the fuel pressure fluctuations with at least temporary boosting of said fuel pressure fluctuations. | 03-19-2015 |