Patent ID: 8418680

Claim:
A gas guide system ( 10 ) for a combustion engine ( 20 ) for guiding gas of the combustion engine ( 20 ), the engine having first and second groups ( 21 , 22 ) of cylinders, said system comprising: a gas supply arrangement ( 1 ) for supplying gas to the combustion engine ( 20 ), a gas discharge system ( 2 ) including an exhaust gas treatment unit ( 14 ) for releasing gas from the combustion engine ( 20 ), a first gas discharge line ( 3 ) for discharging a first partial gas stream ( 7 ) from at least one cylinder (A 1 -A 6 ) of a first cylinder group ( 21 ), and a second gas discharge line ( 4 ) for discharging a second partial gas stream ( 8 ) from at least one cylinder (B 1 -B 6 , A 1 -A 3 ) of a second cylinder group ( 22 ) wherein, during partial engine operation of the combustion engine ( 20 ) in which the at least one cylinder (A 1 -A 6 ) of the first cylinder group ( 21 ) is operable with fuel injection and the at least one cylinder (B 1 -B 6 , A 1 -A 3 ) of the second cylinder group ( 22 ) is operated without fuel injection, the first gas discharge line ( 3 ) and the second gas discharge line ( 4 ) being interconnected via a gas conducting connection (V) which includes a first separation means designed for blocking the connection (V) during partial engine operation of the combustion engine ( 20 ) and the second gas discharge line ( 4 ) including a collection line ( 5 ) which is in communication with a supply section ( 6 . 0 , 6 . 1 , 6 . 2 , 6 . 3 , 6 . 4 , 6 . 5 , 6 . 6 ) of the gas guide system ( 10 ) so that, during partial engine operation, at least part of the second partial gas stream ( 8 ) is supplied to the supply section instead of the exhaust gas treatment unit ( 14 ).