INTERNAL COMBUSTION ENGINE WITH COMMON RAIL PILOT AND MAIN INJECTION

摘要

An internal combustion engine including a pilot subchamber, a pilot fuel injector having a tip in communication with the pilot subchamber, an ignition element positioned to ignite fuel within the pilot subchamber, and a main fuel injector spaced apart from the pilot fuel injector. The engine includes a common rail in fluid communication with the main fuel injector and with the pilot fuel injector and a pressure regulating mechanism in fluid communication with the common rail for regulating a fuel pressure therein. A method of combusting fuel in an internal combustion engine is also provided.

主权项

1. An internal combustion engine comprising:
an outer body defining an internal cavity; a rotatable body sealingly and rotationally received within the internal cavity to define at least one combustion chamber of variable volume; a pilot subchamber defined in the outer body in communication with the internal cavity; a pilot fuel injector having a tip in communication with the pilot subchamber; an ignition element positioned to ignite fuel within the pilot subchamber; a main fuel injector spaced apart from the pilot fuel injector and having a tip in communication with the internal cavity at a location spaced apart from the pilot subchamber; a common rail in fluid communication with the main fuel injector and with the pilot fuel injector; and a pressure regulating mechanism in fluid communication with the common rail for regulating a fuel pressure therein.