HIGH-PRESSURE FUEL PUMP SECTION

摘要

FIELD: engines and pumps. ^ SUBSTANCE: high-pressure fuel pump section comprises casing with opening to receive fuel from low-pressure line and recess on its outer surface with width smaller than opening width, plunger pair and annular shield arranged in casing recess in the area of cutoff openings on plunger sleeve. Shield ring is made from wear resistant wire coiled into spring with no clearance between spring turns. ^ EFFECT: high wear resistance of shield, ease of manufacture and mountunting on pump section. ^ 5 dwg