• The HP4 basic supply pump construction is the same as for the HP3. The composition is also the same as the HP3, being made…
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Supply Pump Overall Fuel Flow • The fuel is suctioned by the feed pump from the fuel tank and sent to the SCV. At this…
Feed Pump • The trochoid type feed pump, which is integrated in the supply pump, draws fuel from the fuel tank and feeds it to…
• The supply pump is primarily composed of the pump unit (eccentric cam, ring cam, two plungers), the SCV (suction control valve), the fuel temperature…
Supply Pump Overall Fuel Flow • Fuel is suctioned by the feed pump from the fuel tank and sent to the SCV. At this time,…
Feed Pump • The feed pump is a four-vaned type that draws fuel from the fuel tank and discharges it to the pumping mechanism. The…
Because the pumping mechanism is a tandem configuration, its peak actuating torque is one-half that of a single pump with the same discharge capacity.
• The supply pump is primarily composed of the two pumping mechanism (inner cam, roller, two plungers) systems, the SCV (Suction Control Valve), the fuel…