| 摘要 |
<p>A compression ignition internal combustion engine capable of making compatible an increase in compression self-ignition operating area with an optimum output torque control in the operating area and also smoothly switching between a self-ignition combustion and a spark ignition combustion, wherein, before operation, the spark ignition combustion using a spark ignition device is switched to a compression ignition combustion self-igniting the mixture by piston compression, variable valve mechanisms (15a, 15b) vary at least one of the valve timings and valve lifts of an intake valve and an exhaust valve, suction air amount regulating means (7; 30; 32; 40, 42) vary the amount of air sucked into a combustion chamber on the upstream side of a combustion chamber inlet of the compression ignition internal combustion engine, and control means (1) controls the variable valve mechanisms (15a, 15b) and suction air amount regulating means (7, 30, 32, 40, 42) during a compression ignition combustion so as to perform a compression ignition combustion.</p> |
