Patent ID: 8376696
Filing Date: 2013-02-19
Classification: F01D,F02B,F05D

Abstract:
1. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing; an annular drive ring interlocked with an actuator; and a lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and another end is fixed to each nozzle vane, wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate, wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, and wherein the lever plate is curved in an axial direction from a surface of the lever plate connected to the fixed portion on the side of the nozzle vane so as to be connected to the groove portion of the drive ring.