Patent ID: 7891341

Claim:
A control device for an internal combustion engine including a first fuel injection mechanism injecting fuel into a cylinder and a second fuel injection mechanism injecting fuel into an intake manifold, comprising: a pump control unit that controls a fuel pump to supply fuel to said first fuel injection mechanism and said second fuel injection mechanism; a control unit that opens at least one of the first fuel injection mechanism and the second fuel injection mechanism during an air purging operation, and that operates said fuel pump to purge air from at least one of a first fuel pipe from said fuel pump to said first fuel injection mechanism and a second fuel pipe from said fuel pump to said second fuel injection mechanism; and a break valve that breaks, when one of said first fuel injection mechanism and said second fuel injection mechanism is opened during the air purging operation, fluid communication between the first fuel pipe and the second fuel pipe, the break valve being provided to one of said first fuel pipe and said second fuel pipe and located respectively between the first and second fuel injection mechanisms and a branching point where a pipe from a fuel tank branches into said first fuel pipe and said second fuel pipe, wherein the break valve inhibits fuel from flowing in a direction from a respective one of said first and second fuel injection mechanisms toward said branching point, and wherein said control unit opens said first fuel injection mechanism and said second fuel injection mechanism at different times during the air purging operation such that one of the first and second fuel injection mechanisms is opened later than the other, said break valve being provided to the one of the first or second fuel pipes that is provided with the one of the first or second fuel injection mechanism that is opened later.