公开(公告)号：US20040055299A1

公开(公告)日：2004-03-25

申请号：US10660498

申请日：2003-09-12

Applicant: ABB Turbo Systems AG

Inventor： Olivier Bernard

IPC: F02B033/44

CPC classification number: F02B37/16 ,  F02D41/0007 ,  Y02T10/144

Abstract: A method for operating an exhaust gas turbocharger serving for charging an internal combustion engine, in which a main flow of a gas is supplied to a compressor (14) of the exhaust gas turbocharger via an intake line (26), is compressed in the compressor (14) and is led into an intake duct of the internal combustion engine via a compressor line. The gas quantity transferred to the combustion chambers of the internal combustion engine via the intake duct is regulated by means of a throttle valve (36) arranged between the compressor (14) and the combustion chambers. When a vacuum occurs in the region downstream of the compressor (14) between the compressor (14) and the throttle valve (36), as compared with the pressure in the intake line (26) upstream of the compressor (14), this vacuum is utilized in order to generate a bypass flow (B) which is branched off upstream of the compressor (14) from the main flow led by the compressor (14), flows around the compressor (14) from its side located upstream to its side located downstream and is returned into the main flow again downstream of the compressor (14) and upstream of the throttle valve (36).

Abstract translation: 一种用于对内燃机进行充气的排气涡轮增压器的操作方法，其中气体的主流经由进气管路（26）供给到排气涡轮增压器的压缩机（14），在压缩机 （14），经由压缩机管路引导到内燃机的进气管道。 通过进气管道传递到内燃机的燃烧室的气体量通过布置在压缩机（14）和燃烧室之间的节流阀（36）来调节。 当在压缩机14与节流阀36之间的压缩机14的下游区域发生真空时，与压缩机14的上游的进气管路26的压力相比，该真空 被利用以产生从压缩机（14）引导的主流体在压缩机（14）的上游分支的旁通流（B），其从位于其上游侧的一侧流过压缩机（14） 位于下游，并且在压缩机（14）的下游和节流阀（36）的上游再次返回主流。