Patent ID: 8978603
Filing Date: 2015-03-17
Classification: F01L,F02B,F02D,F02M

Abstract:
1. An internal combustion engine having a combustion cylinder, which operates on a combustion cycle that includes an intake stroke, during which air is admitted into the combustion cylinder, a compression stroke, during which the air in the combustion cylinder is compressed and fuel is added, a first combustion stroke, a recompression stroke, during which products from the first combustion stroke are compressed in the combustion cylinder and additional fuel is added, a second combustion stroke, and an exhaust stroke, the engine comprising: an intake system including an intake collector in fluid communication with the combustion cylinder; an exhaust system including an exhaust collector in fluid communication with the combustion cylinder; a recirculation system including a recirculation passage connected to the combustion cylinder via a recirculation runner; at least one intake valve disposed to selectively fluidly connect the combustion cylinder with the intake system; at least one exhaust valve disposed to selectively fluidly connect the combustion cylinder with the exhaust system; a recirculation valve disposed to selectively fluidly connect the combustion system with the recirculation runner; a valve activation system configured to activate the at least one intake valve, the recirculation valve, and the at least one exhaust valve; and a controller associated with the internal combustion engine is configured to provide command signals to the valve activation system, such that: