公开(公告)号：US20170211448A9

公开(公告)日：2017-07-27

申请号：US15062520

申请日：2016-03-07

Applicant: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.

Inventor： MICHAEL PETER COOKE

IPC: F01N3/20 ,  F16L41/02

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/1453 ,  F16L41/02 ,  Y02T10/24

Abstract: An injection device for administering a reagent into an exhaust passage of an internal combustion engine, the injection device having an axis along its length and comprising an outwardly opening valve member having a seating surface which is engageable with a valve seating region. A seating member provided with an internal bore which defines the valve seating region, wherein the internal bore further defines a flow re-directing region downstream of the valve seating region. The seating member has an end face provided with a feature which intersects with at least a portion of the flow re-directing region to define, together with the flow re-directing region, a spray path for reagent exiting the injection device when the valve member is moved outwardly from the bore away from the valve seating region. The spray path has a variable spray angle, relative to the axis, around the circumference of the valve seating region.

公开(公告)号：US20160186632A1

公开(公告)日：2016-06-30

申请号：US15062520

申请日：2016-03-07

Applicant: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.

Inventor： MICHAEL PETER COOKE

IPC: F01N3/20 ,  F16L41/02

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/1453 ,  F16L41/02 ,  Y02T10/24

Abstract: An injection device for administering a reagent into an exhaust passage of an internal combustion engine, the injection device having an axis along its length and comprising an outwardly opening valve member having a seating surface which is engageable with a valve seating region. A seating member provided with an internal bore which defines the valve seating region, wherein the internal bore further defines a flow re-directing region downstream of the valve seating region. The seating member has an end face provided with a feature which intersects with at least a portion of the flow re-directing region to define, together with the flow re-directing region, a spray path for reagent exiting the injection device when the valve member is moved outwardly from the bore away from the valve seating region. The spray path has a variable spray angle, relative to the axis, around the circumference of the valve seating region.