Invention Grant
- Patent Title: Synchronizing common rail pumping events with engine operation
- Patent Title (中): 将共轨泵送事件与发动机运行同步
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Application No.: US11998652Application Date: 2007-11-30
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Publication No.: US07690353B2Publication Date: 2010-04-06
- Inventor: Scott Shafer , Jianhua Zhang , Daniel Ibrahim
- Applicant: Scott Shafer , Jianhua Zhang , Daniel Ibrahim
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Liell & McNeil
- Agent Carl E. Myers
- Main IPC: F02M37/04
- IPC: F02M37/04

Abstract:
Noise and vibrations associated with a common rail fuel system drive linkage are reduced by synchronizing a high pressure common rail supply pump with engine operation. This may be accomplished by selecting a linkage associated with a desired ratio of engine speed to pump speed along with selecting a number of pump plungers and cam lobes that results in synchronizing action of the pump with engine combustion events. In particular, a pattern of pumping events per engine cycle repeats during each engine cycle. In a more sophisticated version, the pattern of pumping events per engine cycle includes a sub-pattern of pumping events that repeats an integer number of times each engine cycle, where the integer number equals the number of engine cylinders.
Public/Granted literature
- US20090139493A1 Synchronizing common rail pumping events with engine operation Public/Granted day:2009-06-04
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