公开(公告)号：US20150354444A1

公开(公告)日：2015-12-10

申请号：US14759365

申请日：2013-02-21

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Noriyuki HAYASHI ,  Takamitsu HIMENO ,  Takashi ARAI ,  Yukihide NAGAYO ,  Mitsuru AIBA ,  Takao YOKOYAMA ,  Toru HOSHI ,  Hiroyuki ARIMIZU ,  Toshio SAKON

IPC: F02B37/24

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

Abstract: 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 includes: a nozzle mount, a nozzle support including a first end portion joined to the first surface of the nozzle mount, a nozzle plate including the first surface joined to the second end portion of the nozzle support 6 and supported so as to face the nozzle mount at a distance, and the opposite second surface facing an exhaust—as channel through which exhaust gas flows, and a plurality of nozzle vanes supported rotatably between the nozzle mount and the nozzle plate. The nozzle support is capable of tilting along a radial direction so as to absorb a relative displacement in the radial direction between the nozzle mount and the nozzle plate due to thermal expansion.

Abstract translation: 目的是提供一种可变几何形状的排气涡轮机，由此可以防止在高温下对喷嘴支架的变形和损坏。 可变形排气涡轮机包括：喷嘴座，喷嘴座，其包括接合到喷嘴座的第一表面的第一端部;喷嘴板，其包括与喷嘴支撑件6的第二端部连接的第一表面， 以便与一个距离的喷嘴座相对，并且相对的第二表面面向作为废气流过的排气通道，以及可旋转地支撑在喷嘴座和喷嘴板之间的多个喷嘴叶片。 喷嘴支架能够沿着径向方向倾斜，从而吸收由于热膨胀而在喷嘴座和喷嘴板之间的径向方向上的相对位移。