Patent ID: 7971564

Claim:
A premixed compression ignition type engine capable of switching between spark ignition combustion and premixed compression self-ignition combustion, characterized in that the engine comprises: a first branch intake passage and a second branch intake passage, one end of each passage communicating with a combustion chamber; a common intake passage communicating with the other ends of the first branch intake passage and the second branch intake passage; a fuel supply device provided in the common intake passage, for mixing air with fuel to produce a mixture; a switching means for bringing the common intake passage into communication with at least one of the first branch intake passage and the second branch intake passage; a flow rate adjusting means provided in the first branch intake passage, for controlling a flow rate of the mixture flowing through the first branch intake passage; and a control device for actuating the switching means upon switching between spark ignition combustion and premixed compression self-ignition combustion.