Serieexpansionsanordning för en turbin i ett turboaggregat anslutet till ett EGR-system

• Main Author: Ove Spontón
• Format: Patent
• Language: Swedish
• Published: 07.02.2017
• 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; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The invention relates to an expansion device (4) for a turbine (30) in a turbo unit (29), including a turbine inlet (48) and turbine outlet (50) for the throughflow of exhaust gases to and from the turbine (30), a first exhaust gas pipe (52), which is connected to the turbine inlet (48), a second exhaust gas pipe (54), which is connected to the turbine outlet (50), a waste gate duct (56), which is connected to the first and second exhaust gas pipes (52, 54), and a flow-limiting unit (60) placed in the second exhaust gas pipe (54). The waste gate duct (56) has a cross-sectional surface (Aw) which is smaller than the second exhaust gas pipe's (54) cross-sectional surface (Ae). The invention also relates to a turbo unit (29) with such a series expansion device (4), a combustion engine (2) with such a turbo unit (29), a vehicle (1) with such a combustion engine (2) and a method for regulating a combustion engine (2).