Bosch PFE 1Q Pump Diagram

 
By 11 October 2015
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Section through a type PFE1Q compact  individual jerk pump used on small-bore displacement diesel engines) , delivery valve; 2, delivery valve holder; 3, housing; 4, pump barrel; 5, pump plunger; 6, control sleeve to rotate plunger; 7, plunger return spring.