公开(公告)号：WO2021118428A1

公开(公告)日：2021-06-17

申请号：PCT/SE2020/051132

申请日：2020-11-26

Applicant: SCANIA CV AB

Inventor： GAWELL, Anders ,  OLSSON, Viktor ,  LINDGREN, Magnus

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

Abstract: The present disclosure relates to a turbocharger (5) for an internal combustion engine (2). The turbocharger comprises a turbine (6). The turbine (6) comprises a turbine housing (12) and a diffusor (60). The turbine housing (12) comprises an exhaust gas outlet volume (16), and the diffusor (60) is arranged in this volume. A housing orifice (11) and a diffusor orifice (61) are arranged through each of the turbine housing (12) and diffusor (60) respectively, and are mutually aligned to provide an opening into the exhaust gas outlet volume (16). The turbocharger (5) further comprises a bushing (63). The bushing (63) is arranged within the housing orifice (11), extends towards the diffusor orifice (61), and ends at a first end (63a) in association with the diffusor orifice (61). The first end (63a) of bushing has an internal diameter that is greater than or equal to a diameter of the diffusor orifice (61). The present disclosure also relates to an exhaust additive dosing system for an exhaust system for an internal combustion engine, the said exhaust additive dosing system comprising such a turbocharger. The disclosure further relates to a vehicle (1) comprising such a turbocharger (5) or exhaust additive dosing system.

公开(公告)号：WO2023059245A1

公开(公告)日：2023-04-13

申请号：PCT/SE2022/050876

申请日：2022-09-30

Applicant: SCANIA CV AB

Inventor： LINDGREN, Magnus ,  MEINKING, Christian ,  BODIN-EK, Erik

IPC: F02B37/12 ,  F02C6/12 ,  F04D29/42 ,  F04D29/66

Abstract: A compressor arrangement (1) for a turbocharger (30) is disclosed. The compressor arrangement (1) comprises a compressor housing (3) and a compressor wheel (4) arranged to rotate in the compressor housing (3). The compressor housing (3) comprises a compressor inlet duct (5), a ported shroud (6), and a recirculation channel (7) comprising an inlet (7') arranged downstream of the compressor wheel (4), an outlet (7'') arranged in the compressor inlet duct (5) at a position upstream of ports (6', 6'') of the ported shroud (6), and a valve (8) configured to control the flow of air through the recirculation channel (7). The compressor arrangement (1) further comprises a wall section (9) protruding into the compressor inlet duct (5) at a position upstream of the outlet (7'') of the recirculation channel (7). The present disclosure further relates to a turbocharger (30), an internal combustion engine (40), and a vehicle (2).