| 摘要 |
High pressure post injection using only one valve is accomplished by fluidly connecting the control valve ( 76 ) in a fuel injection chamber ( 70 ) of a fuel injector ( 60 ), and connecting the upper nozzle to a reservoir ( 80 ) by way of a restriction. The restriction creates enough residual pressure in the fuel circuit to enable high pressure post injection by closing the control valve ( 76 ) a second time.
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