Bosch VE Fuel Injection Pump: A Complete Guide for Installation, Maintenance and Repair
the bosch vp 44 fuel injection pump uses a mechanical fuel pump impeller that includes a floating armature. the impeller is attached to a shaft, which in turn is connected to a timing gear, which in turn is connected to a distributor gear, which in turn is connected to the engine camshaft. the timing gear is designed to deliver fuel to the injectors at the right moment. the floating armature design, which was first introduced by porsche, is critical for achieving a stable fuel delivery, or repeatability, from the fuel injection pump. the pump module is suspended in the engine oil sump, which is in the hot-side of the engine. the pump module is attached to the engine block with two bolts that thread into the engine block at the pump module bolt holes. the pump module is suspended in the oil sump by two springs. the pump module is kept in the oil sump by a small retainer ring that is located in the pump module and on the engine block. the retainer ring has two bolts that thread into the engine block, just below the pump module bolts. the pump module and the fuel tank are filled with fuel, which will keep the pump module submerged in the oil sump. the springs are designed to keep the pump module in the oil sump.
Bosch Ve Fuel Injection Pump Manuall
by using a floating armature, the bosch vp 44 fuel injection pump can create a more stable pressure wave in the pump module. the discharge pressure of the floating armature is about 6-8 times higher than that of a fixed armature. the main advantages of the floating armature are that it generates a more consistent fuel flow, and the pressure pulses from the armature are smoother. the impeller can also be rotated at a higher speed, which allows more fuel to be delivered. the fuel injection pump also comes with an internal baffle system, which allows the fuel to be mixed in the fuel tank and eliminates fuel line restrictions. the baffle system was a huge improvement over the stock design, which used the fuel filter as a restriction. for further information, check out this site.
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