A scavenge performance monitoring system and a method for monitoring a process parameter in the scavenging process of a longitudinally scavenged two-stroke large diesel engine

A scavenge performance monitoring system and a method for monitoring a process parameter in the scavenging process of a longitudinally scavenged two-stroke large diesel engine

The invention relates to a scavenge performance monitoring system (1) to optimize a process parameter in the scavenging process of a longitudinally scavenged two-stroke large diesel engine (2). The large diesel engine (2) includes a piston (3) being arranged to be movable to and fro in a cylinder (4...

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1. Verfasser: NANDA, SANGRAM KISHORE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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description The invention relates to a scavenge performance monitoring system (1) to optimize a process parameter in the scavenging process of a longitudinally scavenged two-stroke large diesel engine (2). The large diesel engine (2) includes a piston (3) being arranged to be movable to and fro in a cylinder (4) along a running surface (5) between a bottom dead centre (UT) and a top dead centre (OT), wherein a fuel is fed into the cylinder (4) of the large diesel engine (2) by an injection nozzle. Scavenging slots (6) are provided at an inlet region of the cylinder (4) for the supply of a predetermined amount of scavenging air (7) as well as an outlet valve (8) which is provided at a cylinder cover (9) of the cylinder (4) for the expulsion of a combustion gas (10). In the operation state a fresh air (11) is sucked in by an exhaust gas turbocharger (12) and supplied to the cylinder (4) as the scavenging air (7) at a predetermined charge air pressure via the scavenging slots (6), so that an ignition gas mixture is generated in the cylinder (4) from the scavenging air (7) and the fuel. According to the invention, at least a first oxygen sensor (130, 131) and a second oxygen sensor (130, 132) is provided at the running surface (5) of the cylinder (4) in order to evaluate a scavenging performance in the cylinder (4) of the large diesel engine (1). Furthermore, the invention relates to a method for optimizing a process parameter in the scavenging process of a longitudinally scavenged two-stroke large diesel engine (2) by a scavenge performance monitoring system (1).
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subjects BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
title A scavenge performance monitoring system and a method for monitoring a process parameter in the scavenging process of a longitudinally scavenged two-stroke large diesel engine
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