Patent ID: 7051527
Filing Date: 2006-05-30
Classification: F02B,F02M,Y02T,Y10T

Abstract:
1. An internal combustion engine having an exhaust system with an air intake duct ( 6 ) and an exhaust duct ( 4 ), a turbocharger ( 2 ) with an exhaust gas turbine ( 3 ) disposed in said exhaust duct ( 4 ) so as to be driven by the exhaust gas of the internal combustion engine and a compressor ( 5 ) disposed in the air intake duct ( 6 ) and connected to said turbine ( 3 ) so as to be driven thereby, a rotary slide valve ( 14 ) disposed in communication with said exhaust duct ( 4 ) up-stream of said exhaust gas turbine ( 3 ), and a bypass line ( 17 ) connected to said valve ( 14 ) and bypassing said turbine ( 3 ) for discharging exhaust gas from first and second exhaust ducts 4 a , 4 b ) upstream of said turbine ( 3 ), said valve ( 14 ) including a valve housing ( 26 ) with relief openings ( 24 , 25 ) disposed adjacent to each other and with a valve body ( 21 ) movably disposed in said valve housing and having first and second exhaust gas flow control openings ( 18 , 19 ) of different flow cross sections, said valve body ( 21 ) being hollow cylindrical so as to define an open interior space ( 23 ), and said first and second control openings ( 18 , 19 ) being formed in the wall of said hollow valve body ( 21 ) in spaced relationship with the space therebetween extending over an intermediate angular wall section ( 22 ) of said valve body ( 21 ) corresponding to the size of both of said release opening ( 24 , 25 ) for blocking communication with said exhaust duct ( 4 ) and said bypass line 17 being in communication with the interior space ( 23 ) of said hollow valve body ( 21 ), said valve body ( 21 ) being movable from a blocking position in which said intermediate angular wall section ( 22 ) blocks both said release openings ( 24 , 25 ) in one direction to a position in which one of said release openings ( 25 ) is in communication with the second exhaust gas flow control opening ( 18 ) and in the Opposite direction to a position in which both release openings ( 24 , 25 ) are in communication with the first exhaust gas flow control opening ( 19 ).