公开(公告)号：US20190316509A1

公开(公告)日：2019-10-17

申请号：US16344181

申请日：2017-06-13

Applicant: Scania CV AB

Inventor： Erik HALLDORF ,  Per-Erik NILSSON ,  Anders GAWELL

IPC: F01N3/28 ,  F02B37/18 ,  F02B39/00 ,  F01N3/20 ,  B01D53/94 ,  F01D5/02 ,  B01F3/04 ,  B01F5/04

Abstract: Disclosed is a dosing system for a turbocharger turbine of an exhaust system for an internal combustion engine, the dosing system comprising a distribution device and a metering device. The distribution device comprises a receiving surface, and at least one distribution surface. The receiving surface is equipped to receive exhaust additive dosed to the distribution device. The distribution surface is in fluid communication with the receiving surface and is equipped to distribute exhaust additive in an exhaust stream passing through the turbocharger turbine by a rotary motion of the distribution device. The distribution device is attached to a shaft or hub of the turbocharger turbine. The metering device comprises a supply channel, a metering valve, and a dosing pipe arranged downstream of the metering valve in the direction of flow of reductant when dosing. The metering device is arranged to supply exhaust additive to the receiving surface of the distribution device.

公开(公告)号：US20190301346A1

公开(公告)日：2019-10-03

申请号：US16337246

申请日：2017-08-22

Applicant: Scania CV AB

Inventor： Anders GAWELL ,  Daniel HJORTBORG

IPC: F01N13/10 ,  F01N3/20 ,  F02B37/00 ,  F02B37/02

Abstract: Provided is an exhaust system for an internal combustion engine comprising: a first exhaust conduit leading from a first exhaust bank of the engine to a first turbocharger turbine inlet arranged downstream of the first exhaust bank in the direction of travel of a first exhaust stream; a second exhaust conduit leading from a second exhaust bank of the engine to a second turbocharger turbine inlet arranged downstream of the second exhaust bank in the direction of travel of a second exhaust stream; an SCR catalyst arranged downstream of the first turbocharger turbine inlet and/or second turbocharger turbine inlet; and a reductant supply system comprising a distributor pipe and a reductant injector. The distributor pipe is configured to fluidly connect the first exhaust conduit to the second exhaust conduit upstream of the first turbocharger turbine inlet and second turbocharger turbine inlet, and the reductant injector is configured to supply a reductant to the distributor pipe.

公开(公告)号：US20230019174A1

公开(公告)日：2023-01-19

申请号：US17783313

申请日：2020-11-26

Applicant: Scania CV AB

Inventor： Anders GAWELL ,  Viktor OLSSON ,  Magnus LINDGREN

IPC: F01N3/20 ,  F02B37/00 ,  F02B39/00

Abstract: Disclosed is a turbocharger for an internal combustion engine comprising a turbine having a turbine housing and a diffusor. The turbine housing comprises an exhaust gas outlet volume, and the diffusor is arranged in this volume. A housing orifice and a diffusor orifice are arranged through each of the turbine housing and diffusor respectively and are mutually aligned to provide an opening into the exhaust gas outlet volume. The turbocharger further comprises a bushing arranged within the housing orifice and extending towards the diffusor orifice and ending at a first end in association with the diffusor orifice. The first end of bushing has an internal diameter that is greater than or equal to a diameter of the diffusor orifice.