VARIABLE DISPLACEMENT EXHAUST TURBOCHARGER

A variable capacity exhaust gas turbocharger having a small thermal capacity and enabling the structure to be simplified. A exhaust gas inlet hardware (13) having an exhaust gas inlet body (11) in which an inner side flow passage (U1) communicating with an inner scroll passage (T1) and an outer side flow passage (U2) communicating with an outer scroll flow passage (T2) are formed and a flap valve (12) for opening and closing the outer side flow passage (U2) are formed at the exhaust gas inlet part of a turbine housing body (14) in which the inner scroll passage (T1) and the outer scroll flow passage (T2) are formed. A valve recess (11a) for disposing the flap valve (12) along the outer side flow passage (U2) and a seat (11b) for the flap valve for closing the outer side flow passage (U2) are formed in the exhaust gas inlet body (11). The flap valve (12) is rotatable about a rotating center positioned in the storage space of the valve recess (11a) between the position of the flap valve in contact with the seat (11b) and the position of the flap valve stored in the valve recess (11a).