Patent ID: 6427644
Filing Date: 2002-08-06
Classification: F02B,F02D,F02M,Y02T

Abstract:
A self-ignition process in a four-stroke engine having a plurality of cylinders with each cylinder having at least one intake including an intake port, at least one exhaust including an exhaust port and at least one additional port and an exhaust gas transfer coupling together the additional ports of a plurality of the plurality of cylinders comprising:during operation in a self-ignition mode at partial load, transferring exhaust gas from at least one cylinder during an exhaust phase to at least one other cylinder during an intake phase by transfer from the at least one cylinder, through at least one of the additional ports, the exhaust gas transfer, at least another one of the additional ports and into the at least one other cylinder with the transferred exhaust gas having a temperature promoting spontaneous combustion in the at least one other cylinder.