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首页> 美国政府科技报告 >Injector and valve train friction studies: Cummins L-10 engine. Progress report, October 1, 1988-December 31, 1989.
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Injector and valve train friction studies: Cummins L-10 engine. Progress report, October 1, 1988-December 31, 1989.

机译：喷油器和气门机构摩擦研究：康明斯L-10发动机。进展报告，1988年10月1日至1989年12月31日。

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This report discusses measurement techniques developed and experimental results obtained for a valve and injector train friction study supported by the US Department of Energy. The incentives for this research are the higher injector train forces and potential friction problems associated with advanced technology diesel engines. As a convenient way to begin the program, the instrumentation was developed around the exhaust valve of cylinder number 1. Results are presented for that valve in a motored Cummins L-10 engine. The instantaneous cam/roller friction force was determined from the instantaneous roller speed and the pin friction torque. Measured as well were the pushrod force and displacement. Friction work loss was determined for both the cam and roller interface as well as the upper valve train. Future efforts will address the injector train and a fired engine with advanced technology components. 23 figs.

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