Patent ID: 9689326
Date: 2017-06-27
CPC Classifications: F02D,F02M

Claim:
1. An internal combustion engine having a first and a second cylinder, the engine comprising: the first cylinder having a first exhaust port operably connected to a first exhaust valve, and a first intake port operably connected to a first intake valve; the second cylinder having a second exhaust port operably connected to a second exhaust valve, and a second intake port operably connected to a second intake valve, a flow path directly connecting the first and second cylinders; and a valve actuator operably connected to the first exhaust and intake valves and the second exhaust and intake valves to open and close the first exhaust and intake ports and the second exhaust and intake ports, respectively, the valve actuator operating the valves to directly connect the first exhaust port to only the second intake port, and directly connect the second exhaust port to only the first intake port, to provide direct exchange of exhaust gases between the first and second cylinders.