公开(公告)号：US20090179087A1

公开(公告)日：2009-07-16

申请号：US12275539

申请日：2008-11-21

Applicant: Scott M. Martin ,  Stephen M. Thomas ,  Alison A. Chambers ,  Theodore J. Tarabulski ,  P. Robert Santangeli ,  R. Gifford Broderick

Inventor： Scott M. Martin ,  Stephen M. Thomas ,  Alison A. Chambers ,  Theodore J. Tarabulski ,  P. Robert Santangeli ,  R. Gifford Broderick

IPC: F02M61/00 ,  F02M51/00

CPC classification number: F01N3/2066 ,  F01N2610/00 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/11 ,  F01N2610/1453 ,  F02M53/04 ,  F02M53/08 ,  F02M61/162 ,  Y02T10/24

Abstract: Methods and apparatus for injecting reagent, such as an aqueous urea solution, into an exhaust stream in order to reduce emissions from an engine exhaust. The present teachings can use a whirl plate having a plurality of whirl slots surrounding an exit orifice of an injector, which produce a high velocity rotating flow in the whirl chamber. When the rotating flow of reagent is passed through the exit orifice into an exhaust stream, atomization occurs from a combination of centrifugal force and shearing of the reagent by air as it jets into the exhaust stream.

Abstract translation: 将诸如尿素水溶液的试剂注入排气流的方法和装置，以减少发动机排气的排放。 本教导可以使用具有围绕喷射器的出口的多个旋转槽的旋转板，其在旋转室中产生高速旋转流。 当试剂的旋转流通过出口孔流入排气流中时，雾化从离心力和试剂在空气中剪切流入排气流时的组合发生。

公开(公告)号：US08047452B2

公开(公告)日：2011-11-01

申请号：US12275539

申请日：2008-11-21

Applicant: Scott M. Martin ,  Stephen M. Thomas ,  Alison A. Chambers ,  Theodore J. Tarabulski ,  P. Robert Santangeli ,  R. Gifford Broderick

Inventor： Scott M. Martin ,  Stephen M. Thomas ,  Alison A. Chambers ,  Theodore J. Tarabulski ,  P. Robert Santangeli ,  R. Gifford Broderick

IPC: F02D1/06

CPC classification number: F01N3/2066 ,  F01N2610/00 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/11 ,  F01N2610/1453 ,  F02M53/04 ,  F02M53/08 ,  F02M61/162 ,  Y02T10/24

Abstract: Methods and apparatus for injecting reagent, such as an aqueous urea solution, into an exhaust stream in order to reduce emissions from an engine exhaust. The present teachings can use a whirl plate having a plurality of whirl slots surrounding an exit orifice of an injector, which produce a high velocity rotating flow in the whirl chamber. When the rotating flow of reagent is passed through the exit orifice into an exhaust stream, atomization occurs from a combination of centrifugal force and shearing of the reagent by air as it jets into the exhaust stream.

Abstract translation: 将诸如尿素水溶液的试剂注入排气流的方法和装置，以减少发动机排气的排放。 本教导可以使用具有围绕喷射器的出口的多个旋转槽的旋转板，其在旋转室中产生高速旋转流。 当试剂的旋转流通过出口孔流入排气流中时，雾化从离心力和试剂在空气中剪切流入排气流时的组合发生。