HIGH PRESSURE PUMP FOR SUPPLYING FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE

摘要

A high pressure pump for supplying fuel, preferably diesel, to an internal combustion engine; the pump (1) comprising: a pump body (2); a piston (3) movable along a first axis (A1) for pumping fuel; an operating unit (4) for the piston (3) capable of moving the piston (3) along the first axis (A1); a shoe (22) located between the piston operating unit (4) and the piston (3) to operatively couple the piston operating unit (4) to the piston (3); and wherein the shoe (22) is in abutment with the piston along a first contact surface (30) of the shoe (22) and along a second contact surface (32) of the piston (3), the first contact surface (30) being concave.