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1. 发明申请

WO2009073131A2 SYNCHRONIZING COMMON RAIL PUMPING EVENTS WITH ENGINE OPERATION 审中-公开
标题翻译：与发动机运行同步通用铁路泵送事件
公开(公告)号：WO2009073131A2
公开(公告)日：2009-06-11
申请号：PCT/US2008013140
申请日：2008-11-25
申请人： CATERPILLAR INC , SHAFER SCOTT , ZHANG JIANHUA , IBRAHIM DANIEL
发明人： SHAFER SCOTT , ZHANG JIANHUA , IBRAHIM DANIEL
IPC分类号： F02M37/04
CPC分类号： F02M63/0225 , F02M39/00
摘要： Noise and vibrations associated with a common rail fuel system (12) drive linkage (31) are reduced by synchronizing a high pressure common rail (24) supply pump with engine operation. This may be accomplished by selecting a linkage (31) associated with a desired ratio of engine speed to pump speed along with selecting a number of pump plungers and cam lobes (35) that results in synchronizing action of the pump with engine combustion events. In particular, a pattern of pumping events (80) per engine cycle repeats during each engine cycle. In a more sophisticated version, the pattern of pumping events (80) per engine cycle includes a sub-pattern of pumping events (80) that repeats an integer number of times each engine cycle, where the integer number equals the number of engine cylinders (15).
摘要翻译：通过使高压共轨（24）供应泵与发动机操作同步，减少与共轨燃料系统（12）驱动联动装置（31）相关联的噪声和振动。这可以通过选择与期望的发动机转速与泵速的比率相关联的联动装置（31）以及选择一些泵柱塞和凸轮凸角（35）来实现，这导致泵与发动机燃烧事件的同步动作。特别地，每个发动机循环的泵送事件（80）的模式在每个发动机循环期间重复。在更复杂的版本中，每个发动机循环的泵送事件（80）的模式包括泵送事件的子模式（80），其重复每个发动机循环的整数次，其中整数等于发动机气缸的数量 15）。

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