公开(公告)号：EP2960461A4

公开(公告)日：2016-03-16

申请号：EP13876031

申请日：2013-02-21

申请人： MITSUBISHI HEAVY IND LTD

发明人： HAYASHI NORIYUKI ,  HIMENO TAKAMITSU ,  ARAI TAKASHI ,  NAGAYO YUKIHIDE ,  AIBA MITSURU ,  YOKOYAMA TAKAO ,  HOSHI TORU ,  ARIMIZU HIROYUKI ,  SAKON TOSHIO

IPC分类号： F02B37/24 ,  F01D17/16 ,  F01D25/24 ,  F02B39/00 ,  F02C6/12

CPC分类号： F02B37/24 ,  F01D17/165 ,  F01D25/246 ,  F02B39/00 ,  F02C6/12 ,  F05D2220/40 ,  F05D2230/642 ,  Y02T10/144

摘要： An object is to provide a variable-geometry exhaust turbine whereby it is possible to prevent deformation and damage to a nozzle support under a high temperature. A variable-geometry exhaust turbine 1 includes: a nozzle mount 2, a nozzle support 6 including a first end portion 6a joined to the first surface 2a of the nozzle mount 2, a nozzle plate 4 including the first surface 2a joined to the second end portion 6b of the nozzle support 6 and supported so as to face the nozzle mount 2 at a distance, and the opposite second surface 4b facing an exhaust-as channel 20 through which exhaust gas flows, and a plurality of nozzle vanes 8 supported rotatably between the nozzle mount 2 and the nozzle plate 4. The nozzle support 6 is capable of tilting along a radial direction so as to absorb a relative displacement in the radial direction between the nozzle mount 2 and the nozzle plate 4 due to thermal expansion.

公开(公告)号：EP2884073A4

公开(公告)日：2015-10-14

申请号：EP13827476

申请日：2013-08-07

申请人： MITSUBISHI HEAVY IND LTD

发明人： AIBA MITSURU ,  ARAI TAKASHI ,  HIMENO TAKAMITSU ,  NAGAYO YUKIHIDE ,  HAYASHI NORIYUKI

IPC分类号： F02B39/00 ,  F01D17/16 ,  F02B37/24 ,  F02M25/07 ,  F04D19/02 ,  F04D27/00 ,  F04D29/02

CPC分类号： F04D27/002 ,  F01D17/165 ,  F02B37/24 ,  F02M26/00 ,  F04D19/02 ,  F04D29/023 ,  F05D2220/40 ,  F05D2300/17 ,  F05D2300/50212

摘要： An object is to provide a variable-geometry exhaust turbocharger including a variable nozzle mechanism in which nozzle supports may not deform under a high-temperature condition. A variable-geometry exhaust turbocharger (1) includes: a nozzle mount (2); a nozzle support (6) having a first end coupled to a first face (2a) of the nozzle mount; a nozzle plate (4) coupled to the second end of the nozzle support and supported to be separated from the first face (2aa) of the nozzle mount, the nozzle plate having a first face (4a) coupled to the nozzle support and a second face (4b) which is opposite to the first face and which faces an exhaust gas channel (20) through which exhaust gas flows: a plurality of nozzle vanes (8) rotatably supported between the nozzle mount and the nozzle plate; and a variable nozzle mechanism (10) configured to change vane angles of the nozzle vanes to control a flow of the exhaust gas flowing between the nozzle mount and the nozzle plate. The nozzle plate is formed of a material having a smaller linear expansion coefficient than that of a material forming the nozzle mount.