CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

A fuel supply system (11) includes a non-return valve (412) for a low-pressure delivery connection pipe (410) and a non-return valve (422) for a pump supply pipe (420). The former non-return pipe (412) does not allow fuel to flow from the low-pressure delivery pipe (122) to the low-pressure supply pipe (400). The latter non-return valve (422) does not allow fuel to flow from pump supply pipe (420) to the low-pressure supply pipe (400). Upon determining that air purging is necessary, an engine ECU (10) operates a feed pump (100) for approximately one second and then opens, for dummy injection, an in-cylinder injector (110) and an intake manifold injector (120).