Internal combustion engine e.g. diesel engine, has valve with shutters displaced by single actuator, where one shutter is displaced to regulate flow of recirculation gas circulating in duct

摘要

The engine has a regulation unit comprising a valve (60) having two shutters (62, 63) that are displaced by a single actuator (61). The displacement of the shutter (62) obstructs an exhaust duct (21), so as to increase the pressure of a recirculation gas circulating in a low pressure exhaust duct (22). The displacement of the shutter permits regulating the flow of the recirculation gas circulating in the duct (22).