SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH SEPARATE EXHAUST MANIFOLDS AND METHOD TO OPERATE SUCH ENGINE Russian patent published in 2016 - IPC F01N13/10 F02B37/07 F02B37/18 

FIELD: engines.

SUBSTANCE: present invention may be used in turbocharged internal combustion engines. Internal combustion engine (1) comprises at least two exhaust-gas turbochargers (8) and (9) and at least one cylinder head (2) with at least two cylinders (3). Each cylinder (3) has at least two outlets (4a), (4b) for discharge of exhaust gases, at least one of which is made as activated hole (4a). Each outlet hole (4a), (4b) is connected with exhaust pipeline (5a), (5b). Exhaust pipelines (5a) of activated outlet holes (4a) at least two cylinders (3) forming first discharge manifold (6a), are connected to each other to form first common exhaust pipeline (7a), which is connected with turbine (8a) of first exhaust-gas turbocharger (8). Exhaust pipelines (5b) of other outlet holes (4b) at least two cylinders (3) forming second exhaust manifold (6b), are connected to each other to form second common exhaust pipeline (7b), which is connected with turbine (9a) of second exhaust-gas turbocharger (9). First turbine (8a) is provided with first bypass line (10a), branching off from first exhaust manifold (6a) upstream of first turbine (8a). Second turbine (9a) is equipped with second bypass line (10b) branching off from second exhaust manifold (6b) upstream of second turbine (9a). Exhaust pipelines (5a) of activated outlet holes (4a) are connected to each other inside cylinder head (2) to form first common exhaust pipeline (7a). Exhaust pipelines (5b) of other outlet holes (4b) are connected to each other inside cylinder head (2) to form second common exhaust pipeline (7b). First turbine (8a) and second turbine (9a) have common housing (15) of turbine. Invention discloses a method of operating engine.

EFFECT: technical result is improved compactness of engine and reduction of weight.

15 cl, 1 dwg