Patent ID: 8235013

Claim:
Internal combustion engine comprising: a plurality of cylinders, which are each assigned at least one inlet valve, at least one outlet valve and a combustion space, at least one inlet camshaft and at least one outlet camshaft, a switchable inlet-valve drive for actuating the inlet valves, a switchable outlet-valve drive for actuating the outlet valves, an exhaust-gas system which is provided with an exhaust-gas back-pressure adjustment device for setting an exhaust-gas back-pressure as a function of an operating point, wherein the internal combustion engine is configured to operate with compression ignition or with spark ignition as a function of the operating point, wherein in a compression-ignition mode, a residual exhaust-gas quantity is capable of being set in the combustion space with the aid of the exhaust-gas back-pressure adjustment device, wherein the outlet-valve drive is configured in such a way that a plurality of cams are selectively provided for actuating a respective outlet valve, wherein at least one outlet cam includes a plurality of cam elevations for setting a plurality of outlet opening phases.