CYLINDER FUEL INJECTION DEVICE

PROBLEM TO BE SOLVED: To provide a cylinder fuel injection device whereby power consumption of a drive motor driving a high pressure fuel pump is low suppressed, only a rotational speed region obtaining the highest efficiency thereof is used, a return of fuel to a fuel tank is suppressed to a minimu...

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Bibliographische Detailangaben
Hauptverfasser:	TAGAMI MASAFUMI, ENDO ATSUKO, MIYASHITA JUNJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cylinder fuel injection device whereby power consumption of a drive motor driving a high pressure fuel pump is low suppressed, only a rotational speed region obtaining the highest efficiency thereof is used, a return of fuel to a fuel tank is suppressed to a minimum limit, and generation of vapor in the fuel tank can be suppressed. SOLUTION: By aiming at that a motor-driven high pressure fuel pump 4 and an accumulator 13 are combined, and during operation of an engine 24, a drive motor is intermittently operated, in a cylinder fuel injection device 1 having a common rail 15 connecting an injection valve 16 injecting high pressure fuel from the high pressure fuel pump 4 driven by the drive motor 5, the accumulator 13 accumulating high pressure fuel from the high pressure fuel pump 4 is provided in the upstream of the common rail 15, and in accordance with a pressure of high pressure fuel in the common rail 15, the drive motor 5 is controlled to be driven and stopped.