Limp home capable dual fuel engine and machine using same
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United States of America Patent
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Feb 3, 2015
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app pub date -
Sep 7, 2012
filing date -
Sep 7, 2012
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Abstract
A dual fuel engine powers a machine by burning natural gas and liquid diesel fuel. When operating in a low load mode, some of the engine cylinders are fueled with a high ratio of diesel/gas, and the remaining cylinders are unfueled. When operating in a high load mode, all of the engine cylinders are fueled with a low ratio of diesel/gas. When operating in a limp home mode, the fuel injectors are configured to inject only diesel fuel into all of the plurality of engine cylinders.
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