公开(公告)号：US10458302B2

公开(公告)日：2019-10-29

申请号：US15753494

申请日：2016-08-19

Applicant: Tenneco Automotive Operating Company Inc. ,  Tenneco GmbH

Inventor： Mark Devito ,  Ryan A. Floyd ,  Adam J. Kotrba ,  Padmanabha R. Ettireddy ,  Michael C. Bradford ,  Bradley Fingland ,  John W. Degeorge ,  Philipp Kreutziger ,  Manuel Kluck ,  Michael Flockert ,  Mathias Hund ,  Eric A. Hein

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/021 ,  F01N13/00

Abstract: An exhaust aftertreatment system may include a reductant tank, a gaseous ammonia source, an injector, first conduit and a second conduit. The injector may receive the liquid reductant from the reductant tank and the gaseous ammonia from the gaseous ammonia source and inject the liquid reductant into a stream of exhaust gas in a first mode, inject the gaseous ammonia into the stream of exhaust gas in a second mode, and both the liquid reductant and the gaseous ammonia into the stream of exhaust gas in a third mode. The first conduit may communicate liquid reductant from the reductant tank to the injector. The second conduit may communicate gaseous ammonia from the gaseous ammonia source to the injector.

公开(公告)号：US20180328250A1

公开(公告)日：2018-11-15

申请号：US16045036

申请日：2018-07-25

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Abhijit P Upadhye ,  Alan Brockman ,  Olaf Enke ,  Mark Devito

IPC: F01N3/20 ,  F02M53/04 ,  B01D53/94

CPC classification number: F01N3/208 ,  B01D53/9418 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F02M53/043

Abstract: An injector for injecting a reagent includes a first injector body and a second injector body. The first injector body includes an outlet opening. The second injector body includes a reagent tube. The second injector body is movable relative to the first injector body. The injector further includes a valve assembly at least partly enclosed by the first injector body. The valve assembly is configured to selectively dispense the reagent through the outlet opening of the first injector body. The injector further includes a spring member positioned between the first injector body and the second injector body. The spring member is pre-loaded to bias the second injector body towards the first injector body. The spring member is further configured to limit a maximum movement of the second injector body relative to the first injector body in response to expansion of the reagent during freezing.

公开(公告)号：US10655523B2

公开(公告)日：2020-05-19

申请号：US16045036

申请日：2018-07-25

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Abhijit P Upadhye ,  Alan Brockman ,  Olaf Enke ,  Mark Devito

IPC: F01N3/20 ,  F02M51/06 ,  F02M53/04 ,  B01D53/94

Abstract: An injector for injecting a reagent includes a first injector body and a second injector body. The first injector body includes an outlet opening. The second injector body includes a reagent tube. The second injector body is movable relative to the first injector body. The injector further includes a valve assembly at least partly enclosed by the first injector body. The valve assembly is configured to selectively dispense the reagent through the outlet opening of the first injector body. The injector further includes a spring member positioned between the first injector body and the second injector body. The spring member is pre-loaded to bias the second injector body towards the first injector body. The spring member is further configured to limit a maximum movement of the second injector body relative to the first injector body in response to expansion of the reagent during freezing.