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Invention Publication
CN103256127A 用于运行自点燃式内燃机的方法 有权

用于运行自点燃式内燃机的方法
Abstract:
本发明涉及一种用于运行自点燃式内燃机的方法，内燃机在单燃料运行中被供以自点燃的液态燃料而在双燃料运行中被供以液态燃料作为点燃介质且供以气态的或液态的备用燃料，设置有输送装置，经由其可在双燃料运行中将备用燃料引入抽吸系统中，带有废气再循环装置，其经由废气再循环阀将内燃机的废气引回到抽吸系统中，经由至少一个电子控制仪将燃料量配量成使得获得所要求的功率和限定的废气极限值。为了获得改进的运行特性提出，在双燃料运行中以提高的废气再循环率运行内燃机，并且此外在抽吸系统中将空气供给节流成使得在废气中建立大于1至最大1.3、优选地大于1至最大1.2、最优选地1.03至1.1的lambda值。
Abstract(English):

A method for operating an auto-ignition internal combustion engine that is operable in a single substance mode in which the internal combustion engine is supplied with self-igniting liquid fuel, and a dual substance mode in which the internal combustion engine is supplied with the liquid fuel as an ignition agent and gaseous or liquid alternative fuel, includes operating the internal combustion engine in the dual-substance mode at an increased exhaust gas recirculation rate relative to the single-substance mode, and throttling an air supply in an intake system of the internal combustion engine such that a lambda value in an exhaust gas of the internal combustion engine is in a range greater than 1 up to 1.3.

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