High pressure fuel supply apparatus

摘要

A high pressure fuel supply apparatus 6 having: a plunger 161 reciprocating and sliding in a sleeve 160 of a high pressure fuel pump 16 so as to form a fuel pressurizing chamber 163 between the plunger 161 and the sleeve 160 to thereby discharge pressurized fuel; a tappet 164 reciprocated while abutting against the plunger 161 ; and a cam 100 abutting against the tappet 164 so as to reciprocate the tappet 164 and the plunger 161 ; wherein the tappet 164 has a recess portion 164 a formed near a central portion of an abutment surface of the tappet 164 against the plunger 161.