发明名称 Method for igniting a fuel/air mixture of a combustion chamber, in particular in an internal combustion engine, by creating a corona discharge
摘要 Method for igniting a fuel/air mixture in a cyclically operating internal combustion engine comprising combustion chambers which are delimited by walls that are at ground potential, using an ignition device comprising an ignition electrode provided in each combustion chamber, in which method, via an electrical DC/AC converter, an electric oscillating circuit is excited, which is connected to the secondary side of the DC/AC converter, and in which the ignition electrode, which is guided through one of the walls delimiting the combustion chamber in a manner in which it is electrically insulated from said walls by an insulator and extends into the combustion chamber, constitutes a capacitance in cooperation with the walls of the combustion chamber that are at ground potential, and in which the excitation of the oscillating circuit is controlled so a corona discharge igniting the fuel/air mixture is created in each combustion chamber at the ignition electrode.
申请公布号 US9249775(B2) 申请公布日期 2016.02.02
申请号 US201113153144 申请日期 2011.06.03
申请人 BORGWARNER BERU SYSTEMS GMBH 发明人 Schremmer Torsten;Bräuchle Gerd;Trump Martin;Bohne Steffen
分类号 F02P23/00;F02P9/00;F02P23/04 主分类号 F02P23/00
代理机构 Orum & Roth LLC 代理人 Orum Keith;Orum & Roth LLC
主权项 1. A method for igniting a fuel/air mixture in a cyclically operating internal combustion engine comprising one or more combustion chambers which are delimited by walls that are at ground potential, using an ignition device comprising an ignition electrode provided in each combustion chamber, in which method, by way of an electrical DC/AC converter, comprising the steps of exciting an electric oscillating circuit, which is connected to a secondary side of the DC/AC converter, and in which the ignition electrode, which is guided through one of a wall delimiting the combustion chamber in a manner in which it is electrically insulated from said walls by an insulator and extends into the combustion chamber, constitutes a capacitance in cooperation with the walls of the combustion chamber that are at ground potential, and controlling the step of excitation of the oscillating circuit such that a corona discharge igniting a fuel/air mixture is created in each combustion chamber at the ignition electrode, wherein combustion residues that have deposited onto a surface of the insulator located in the combustion chamber are removed from the surface of the insulator in the combustion chamber, using steps of combustion, comprising the step of temporarily enriching the fuel/air mixture with additional fuel, wherein a cleaning procedure is triggered when the number of spark discharges detected in a combustion chamber within a certain period of time exceeds a threshold value.
地址 Ludwigsburg DE