Transcription of Construction. The Stanadyne pump, shown in …
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Construction. The Stanadyne pump, shown in …
Construction. The Stanadyne pump, shown in Figure 5-62 incorporates four pumping plungers. The driveshaft engages the distributor rotor in the hydraulic head. The rotor holds the four pumping plungers. The plungers are actuated simultaneously toward each other by an internal cam ring through rollers and shoes located in slots at the end of the rotor. The number of lobes normally equals the number of engine cylinders. Figure 5-62 - The Stanadyne DB4 injection pump uses four opposed plungers. The transfer pump is also a positive displacement vane type. It is enclosed in the end cap, which also houses the fuel inlet strainer and transfer pump pressure regulator. The distributor rotor incorporates two charging ports and a single axial bore. One discharge port serves all the outlet ports to the injection lines. The hydraulic head contains the bore in which the rotor revolves, the metering valve bore, the charging ports, and the head discharge fittings. The high pressure injection lines to the nozzles are fastened to these discharge fittings.
plungers, internal cam ring, hydraulic head, end plate, adjusting plates, transfer pump, pressure regulator assembly, governor, automatic advance,
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