초록 ▼

This device comprises a turbocompressor C whose turbine 7 has a scroll 8a connected to two pipes 5, 6 each connected to the exhaust of a group of cylinders of the engine. The inlet of the scroll is divided by a partition 10 into two conduits 11, 12 which extend the two pipes 5, 6. A regulating flap

This device comprises a turbocompressor C whose turbine 7 has a scroll 8a connected to two pipes 5, 6 each connected to the exhaust of a group of cylinders of the engine. The inlet of the scroll is divided by a partition 10 into two conduits 11, 12 which extend the two pipes 5, 6. A regulating flap 15 is provided and constitutes a movable wall of the scroll and includes two extensions 18, 19 which extend on each side of the partition 10 into the conduits 11, 12. This arrangement avoids the phenomenon of a counter-scavenging in the cylinders of the engine and improves the efficiency of the turbine.

대표청구항 ▼

A turbine for a turbocompressor of a supercharger device of an internal combustion engine, said turbine comprising a turbine wheel, a housing wall internally defining a first part of a scroll in which said turbine wheel is mounted to be rotatable about an axis, said housing wall further defining an

A turbine for a turbocompressor of a supercharger device of an internal combustion engine, said turbine comprising a turbine wheel, a housing wall internally defining a first part of a scroll in which said turbine wheel is mounted to be rotatable about an axis, said housing wall further defining an aperture laterally disposed relative to said wheel and scroll, a flap movably mounted in said aperture and having a concave surface which defines a second part of said scroll completing said scroll with said first part, said scroll having an inlet for exhaust gases from said engine and a partition element dividing said inlet into two conduits which are respectively for connection to two exhaust pipes, each pipe being connected to exhaust outlets of a respective group of cylinders of the engine, said flap being movable in said aperture between a withdrawn position in which withdrawn position said concave surface of said flap defines a given section of passage of a part of the scroll adjacent to said inlet and a position in which said flap projects from said aperture and said concave surface of said flap defines a section of passage which is smaller than said given section of said part of the scroll adjacent to said inlet, said flap having two extension portions which are respectively cooperative with said two conduits so as to substantially completely open said conduits in said withdrawn position of said flap and to partly close said conduits in said projecting position of said flap.