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    • 7. 发明申请
    • METHOD AND APPARATUS FOR DETERMINING AND REGULATING AN EXHAUST GAS RECIRCULATION RATE OF AN INTERNAL COMBUSTION ENGINE
    • 用于确定和调节内燃机排气重燃率的方法和装置
    • US20110118959A1
    • 2011-05-19
    • US12944343
    • 2010-11-11
    • Guido PORTENMarkus AmlerLanouar ChoukJan-Mathias MengUwe Mueller
    • Guido PORTENMarkus AmlerLanouar ChoukJan-Mathias MengUwe Mueller
    • F02M25/07
    • F02M25/0728F02D21/08F02M26/05F02M26/10F02M26/25Y02T10/121
    • The invention relates to a method and an apparatus for determining an exhaust gas recirculation rate in an internal combustion engine, in which the exhaust gas recirculation rate indicates a proportion of exhaust gas in a gas quantity delivered to a cylinder of the internal combustion engine, and combustion takes place in the cylinder of the engine cyclically during a combustion phase. The method includes the steps of ascertaining a combustion course statement over the course of combustion in the cylinder of the engine, and ascertaining an actual exhaust gas recirculation rate from the combustion course statement with the aid of a predetermined exhaust gas recirculation rate function. The invention further relates to a method and an apparatus for regulating an exhaust gas recirculation rate in an internal combustion engine, in which the exhaust gas recirculation rate indicates a proportion of exhaust gas in a gas quantity delivered to a cylinder of the internal combustion engine, and combustion takes place in the cylinder of the engine cyclically during a combustion phase. The method includes the steps of ascertaining a combustion course statement over the course of combustion in the cylinder of the engine, furnishing a set-point statement as a function of an operating point of the engine, and performing a regulation to compensate for a deviation that results from the set-point statement and the combustion course statement.
    • 本发明涉及一种用于确定内燃机中的废气再循环速率的方法和装置,其中废气再循环率表示输送到内燃机的气缸中的气体量中的一部分排气,以及 燃烧在燃烧阶段循环地发生在发动机气缸中。 该方法包括以下步骤:在发动机气缸内的燃烧过程中确定燃烧过程陈述,并借助于预定的废气再循环速率函数确定来自燃烧过程语句的实际废气再循环速率。 本发明还涉及一种用于调节内燃机中的废气再循环速率的方法和装置,其中废气再循环率表示输送到内燃机的气缸中的气体量的一部分排气, 并且在燃烧阶段循环地发生燃烧在发动机气缸中。 该方法包括以下步骤:在发动机气缸内的燃烧过程中确定燃烧过程陈述,提供作为发动机工作点的函数的设定点语句,并执行调节以补偿 来自设定点声明和燃烧过程声明的结果。
    • 9. 发明授权
    • Exhaust gas cooler for an exhaust gas recirculation system, and an exhaust gas recirculation system with such an exhaust gas cooler
    • 用于废气再循环系统的排气冷却器和具有这种排气冷却器的废气再循环系统
    • US09103300B2
    • 2015-08-11
    • US14343274
    • 2012-09-10
    • Marcel Tischer
    • Marcel Tischer
    • F02M25/07F02D41/00F02M25/00F28D21/00
    • F02M25/0728F02D41/0055F02M26/24F02M26/25F02M26/26F02M26/28F02M26/29F02M26/30F28D21/0003Y02T10/121
    • The invention relates to an exhaust gas cooler for an exhaust gas recirculation system, in particular of a motor vehicle, said exhaust gas recirculation system having a total cooling power (PG) and a total pressure loss coefficient (DG). The exhaust gas cooler comprises: at least one cooling portion (20, 20′) which has at least one cooling duct (22, 22′) and at least one additional duct (24, 24′); at least one bypass which bypasses at least one of the cooling portions (20, 20′); and an exhaust gas routing device (40) which has at least one closing member (42); wherein the cooling duct (22, 22′) has a first cooling power (P1) and a first pressure loss coefficient (D1), and the additional duct (24, 24′) has a second cooling power (P2) and a second pressure loss coefficient (D2). The first cooling power (P1) is greater than the second cooling power (P2), and/or the first pressure loss coefficient (D1) is greater than the second pressure loss coefficient (D2). The closing member (42) is suitable for at least nearly preventing exhaust gases from flowing through the additional duct (24, 24′) in order to increase the total cooling power (PG) and/or the total pressure loss coefficient (DG).
    • 本发明涉及一种用于排气再循环系统,特别是机动车辆的排气冷却器,所述废气再循环系统具有总冷却功率(PG)和总压力损失系数(DG)。 排气冷却器包括:至少一个具有至少一个冷却管道(22,22')和至少一个附加管道(24,24')的冷却部分(20,20'); 绕过至少一个所述冷却部分(20,20')的至少一个旁路; 和排气选择装置(40),其具有至少一个关闭件(42); 其中所述冷却管道具有第一冷却功率(P1)和第一压力损失系数(D1),并且所述附加管道(24,24')具有第二冷却功率(P2)和第二压力 损失系数(D2)。 第一冷却功率(P1)大于第二冷却功率(P2),和/或第一压力损失系数(D1)大于第二压力损失系数(D2)。 关闭构件(42)适于至少几乎防止废气流过附加管道(24,24'),以便增加总冷却功率(PG)和/或总压力损失系数(DG)。