Method for the Operation of an Internal Combustion Engine

• Main Authors: SEITZ HANS FELIX, PEREIRA BRAZ ABRANTES MESTRE RICARDO AFONSO
• Format: Patent
• Language: English
• Published: 03.12.2015
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The invention relates to a method for operating an internal combustion engine (1) with an exhaust system (4), especially a gas engine, where a first partial exhaust gas flow (6) is led through a first exhaust gas turbine (8) of a first exhaust gas turbocharger (9) and a second partial exhaust gas flow (7) is led through a second exhaust gas turbine (12), the exhaust gas being passed through the first and second exhaust gas turbines (8, 12) in parallel flows, where the second partial exhaust gas flow (7) is controlled, and where in at least one operating range of the engine the second partial exhaust gas flow (7) is controlled by the second exhaust gas turbine (12). In order to control the total power of an internal combustion engine in as simple and efficient way as possible it is provided that in the case of load increase the second partial exhaust gas flow (7) is at first throttled or interrupted until the increased load level is attained and is then slowly increased again until the output power of the second exhaust gas turbine (12) at the present load level is reached, with preferably the first partial exhaust gas flow (6) being controlled with regard to optimum efficiency of the first exhaust gas turbocharger (9).