INTERNAL COMBUSTION ENGINE EQUIPPED WITH TURBINES WITH BYPASS VALVE AND OPERATION METHOD THEREOF Russian patent published in 2016 - IPC F02B37/07 F02B37/18 F02F1/24 F01N13/10 

FIELD: engines and pumps.

SUBSTANCE: present invention can be used in turbo-supercharged internal combustion engines. Turbo-supercharged internal combustion engine (1) has at least at least two exhaust-gas turbochargers (8, 9) and at least one cylinder head (2) having at least two cylinders (3). Each cylinder (3) has at least two outlet openings (4a, 4b) for discharging the exhaust gases. At least one of the outlet openings can be a switchable opening (4a). Each outlet opening (4a, 4b) is connected with exhaust pipes (5a, 5b). Exhaust pipelines (5a) of the switchable outlet openings (4a) of at least two cylinders (3) merge with each other to form a first exhaust manifold (6a) to generate a first overall exhaust line (7a), which is connected to the turbine (8a) of a first exhaust gas turbocharger (8). Exhaust pipes (5b) of other outlet openings (4b) of at least two cylinders (3) merge with each other to form a second exhaust manifold (6b) for generating a second overall exhaust line (7b), which is connected to the turbine (9a) of a second exhaust gas turbocharger (9). First turbine (8a) is provided with a first bypass line (10a), branching off from the first exhaust manifold (6a) upstream of the first turbine (8a). Second turbine (9a) is equipped with a second bypass line (10b) branching off from the second exhaust manifold (6b) upstream of the second turbine (9a). First bypass line (10a) and the second bypass line (10b) merge to form a connection node (11) to form a common bypass pipe (10c). At the connection node (11) there is a shut-off element (12), which can be adjusted between an open position and a closed position. Shutoff element (12) in its closed position separates two bypass lines (10a, 10b) of the common bypass pipe (10c), and in its open position it connects the two bypass lines (10a, 10b) with the common bypass pipe (10c).

EFFECT: to reduced the volume of pipelines between the outlet openings and turbines.

15 cl, 1 dwg