FIELD: engines and pumps.
SUBSTANCE: invention can be used in fuel delivery systems of internal combustion engines. The high pressure fuel delivery system is offered which contains a high pressure fuel pump (5) with an inlet port (6), at least one plunger (9) and a suction channel (8) passing between the inlet port (6) and the plunger (9), and also a fuel return port (4) and a vapour discharge valve (15) installed on the suction channel (8) of the high pressure fuel pump (5) with a possibility of connection with this channel. Between the inlet port (6) and the fuel return port (4) the switching valve (11) is installed, and the vapour discharge valve (15) is installed between the suction channel (8) and the fuel return port (4) with a possibility of their connection.
EFFECT: decrease of impact of fuel vapours at operation of the high pressure fuel pump due to fuel vapour discharge from the pump.
13 cl, 1 dwg
