Exhaust turbo-supercharger,申请号US20060581582-传众专利搜索

Exhaust turbo-supercharger

申请公布号：US2007089414(A1)

申请号：US20060581582

申请日期：2006.10.17

申请公布日期：2007.04.26

申请人：

YOKOYAMA TAKAO;IBARAKI SEIICHI;OSAKO KATSUYUKI;EBISU MOTOKI

发明人：YOKOYAMA TAKAO;IBARAKI SEIICHI;OSAKO KATSUYUKI;EBISU MOTOKI

分类号：F02B33/44

主分类号：F02B33/44

摘要：An exhaust turbo-supercharger having a high efficiency is provided. The exhaust turbo-supercharger includes therein an exhaust turbine housing including a spiral channel and a turbine-accommodating chamber connected to an innermost peripheral part of the spiral channel; an exhaust turbine provided in the turbine-accommodating chamber so that the axial line of the exhaust turbine is parallel to that of the spiral channel; a shaft that is concentrically connected to one side of the exhaust turbine in the axial line direction; a bearing housing disposed at the side of the exhaust turbine in the axial line direction so as to be adjacent to the exhaust turbine housing; a bearing that is provided in the bearing housing and that rotatably supports the shaft around the axial line; and a heat shield component interposed between the exhaust turbine housing and the bearing housing. The heat shield component constitutes a part disposed near the entrance of the turbine-accommodating chamber, the part being a part of the inner wall surface of the spiral channel. The part composed of the heat shield component, the part being a part of the inner wall surface of the spiral channel, forms a protruding part protruding toward the inside of the channel relative to an upstream part.