AUTOMATIC CONTROLLING APPARATUS OF OIL PUMP FOR HEAVY EQUIPMENTS

PURPOSE: An automatic fuel feed pump control device for heavy equipment is provided to automatically cut off the fuel supply when a proper amount of fuel is filled in a fuel tank. CONSTITUTION: A stop switch(SW1) stops the operation of a fuel feed pump(20). A start switch(SW2) starts the operation o...

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Bibliographische Detailangaben
1. Verfasser:	HWANG, GYU WAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING DREDGING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FOUNDATIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULIC ENGINEERING LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: An automatic fuel feed pump control device for heavy equipment is provided to automatically cut off the fuel supply when a proper amount of fuel is filled in a fuel tank. CONSTITUTION: A stop switch(SW1) stops the operation of a fuel feed pump(20). A start switch(SW2) starts the operation of an automatic fuel feed pump control device. A manual switch(SW3) actuates the fuel feed pump while the start and stop switches are off. A first relay(CR1) is turned on when the fuel amount of a fuel tank is less than the set amount and off when greater than the set amount and, if the stop switch is turned on, turned off regardless of the fuel amount. A second relay(CR2) is activated when the start switch is turned on while the first relay is on. A third relay(CR3) supplies power to the fuel feed pump when the second relay or the manual switch is turned on.