HOUSING STRUCTURE FOR EXHAUST TURBOCHARGER,申请号JP20100292865-传众专利搜索

HOUSING STRUCTURE FOR EXHAUST TURBOCHARGER

申请公布号：JP2012140876(A)

申请号：JP20100292865

申请日期：2010.12.28

申请公布日期：2012.07.26

申请人：

MITSUBISHI HEAVY IND LTD

发明人：IBARAKI SEIICHI;SHIRAISHI TAKASHI;SUZUKI HIROSHI

分类号：F02B37/00;F01M13/00;F02M25/07

主分类号：F02B37/00

摘要：<P>PROBLEM TO BE SOLVED: To increase the efficiency of a compressor impeller and secure the introduction of a proper amount of EGR gas by suppressing the interference of the EGR gas and blowby gas with a main flow (air) flowing through an air passage, reducing pressure loss, and suppressing the deformation of the distribution of the flow velocity on the upstream side of the compressor impeller. <P>SOLUTION: This housing structure for an exhaust turbocharger includes: a casing treatment 4 having a recirculation passage 41 allowing a first reflux port 42 which is formed inside the compressor housing 11 of the exhaust turbocharger and which opens to the air passage 15 on the upstream side of the compressor impeller 3 to communicate with a second reflux port 43 formed in the outer peripheral part of the compressor impeller 3; and a mixing pipe 6 having a return port 14 which communicates with the recirculation passage 41 to allow the EGR gas and the blowby gas to flow into the recirculation passage 41. <P>COPYRIGHT: (C)2012,JPO&INPIT