Patent ID: 7637106

Claim:
An exhaust-gas turbocharger for an internal combustion engine having an intake section ( 9 ) with a compressor ( 2 ) and an exhaust gas section ( 8 ) with a turbine ( 3 ) including a turbine wheel ( 4 ) and having at least a first and a second flow passage ( 5 , 6 ), a flow adjusting device ( 15 ) arranged upstream of the flow passages and a bypass line ( 16 ) extending from the flow adjusting device ( 15 ) to the turbine ( 3 ), the flow adjusting device ( 15 ) including a rotary slide ( 19 ) with a rotational axis ( 20 ) and being disposed in a rotary slide housing ( 21 ), such that a connection is established or blocked between the bypass line ( 16 ) and the flow passages ( 5 , 6 ) by means of the rotary slide ( 19 ), the rotary slide ( 19 ) having for this purpose, at least a first flow channel ( 24 ) and a second flow channel ( 25 ), and the rotary slide housing ( 21 ) having at least a first rotary slide housing opening ( 27 ) and a second rotary slide housing opening ( 28 ) at a side ( 29 ) remote from the turbine wheel, said first flow channel ( 24 ) and said second flow channel ( 25 ) of the rotary slide ( 19 ) extending through the rotary slide ( 19 ) transversely with respect to the rotational axis ( 20 ) thereof and the rotary slide ( 19 ) having a third flow channel ( 30 ) which extends partially through the rotary slide ( 19 ) in the direction of the rotational axis ( 20 ) and has at least two inlet openings on the slide circumference which can be brought into overlap with the rotary slide housing openings ( 27 , 28 ), that is, a first inlet opening ( 31 ) and a second inlet opening ( 32 ), and which ends at an axial outlet opening ( 33 ), at least three further rotary slide housing openings being provided in the rotary slide housing ( 21 ) on the side thereof ( 34 ) which faces the turbine wheel, that is, a third rotary slide housing opening ( 35 ), a fourth rotary slide housing opening ( 36 ) and a fifth rotary slide housing opening ( 37 ) which is in communication with the axial outlet opening ( 33 ).