Conversion of non-accumulator-type hydraulic electronic unit injector to accumulator-type hydraulic electronic unit injector

摘要: A non-accumulator-type hydraulic electronic unit injector assembly can be converted to an accumulator-type simply by subjecting the nozzle needle of downwardly closing forces arising from fluid pressure in high chamber intensifier. This modification causes remain seated upon intensification and permits fuel injection commence only subsequent decay chamber. An accumulator volume is formed beneath blowback avoidance check-valve can, if necessary, enlarged adding spring volume. The resulting could conceivably retrofitted into existing system on site, or assembled as new construction using primarily stock components. Manufacturing expenses thus sharply reduced, thereby promoting retrofitting, low-volume production, and/or standardization.