CONTROL SYSTEM OF PERFORMANCE PERFORMANCE AND METHOD OF CONTROL OF TECHNOLOGICAL MODE IN THE PROCESS OF PURCHASING A LARGE TWO-STROKE DIESEL ENGINE WITH DIRECT BLOWING

摘要

1. A system for monitoring the performance of the purge to optimize the process mode during the purge of a large two-stroke diesel engine (2) with direct-flow purge, containing a piston (3) configured to reciprocate in the cylinder (4) along the sliding surface (5) between bottom dead center (UT) and top dead center (OT), where fuel is supplied to the cylinder (4) of a large diesel engine (2) by an injection nozzle, and purge slots (6) are provided at the inlet zone of the cylinder (4) to supply a predetermined amount purge air (7), there is also an exhaust valve (8), which is provided at the cover (9) of the cylinder head (4) for the emission of gases (10) emitted during combustion, and in operation fresh air (11) is sucked in by the turbocharger (12 ) on the exhaust gases and through the purge slots (6) is supplied to the cylinder (4) as purge air (7) at a given charge air pressure, so that in the cylinder (4) is a flammable gas mixture of purge air (7) and fuel, characterized in that at least one first oxygen sensor (130,131) and one second oxygen sensor (130, 132) are provided at the sliding surface (5) of the cylinder (4) in order to evaluate the blowdown characteristics in the cylinder (4) of a large diesel engine (1). ! 2. A control system according to claim 1, wherein a plurality of oxygen sensors (130, 131, 132) are mounted around the perimeter at the sliding surface (5) of the cylinder (4). ! 3. A monitoring system according to any one of claims 1 or 2, wherein a plurality of oxygen sensors (130, 131, 132) are provided along the longitudinal axis (A) of the cylinder (4) at the sliding surface (5) of the cylinder (4). ! 4. �