Invention Grant
- Patent Title: Systems and methods for reducing noise in reductant insertion assemblies
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Application No.: US15150588Application Date: 2016-05-10
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Publication No.: US10247075B2Publication Date: 2019-04-02
- Inventor: Santosh Kumar Ratan , Bryce R. Larson , Jinqian Gong , Abhijeet Singh Chauhan , Arun Kumar Dasari , Aditi Vedantam , Frederick V. Holt, III
- Applicant: Cummins Emission Solutions Inc.
- Applicant Address: US IN Columbus
- Assignee: Cummins Emission Solutions Inc.
- Current Assignee: Cummins Emission Solutions Inc.
- Current Assignee Address: US IN Columbus
- Agency: Foley & Lardner LLP
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F01N3/20 ; F01N9/00

Abstract:
An aftertreatment system comprises an aftertreatment component structured to decompose constituents of an exhaust gas produced by an engine. A reductant insertion assembly is fluidly coupled to the aftertreatment component and configured to insert a reductant therein. A controller is operatively coupled to the reductant insertion assembly and configured to instruct the reductant insertion assembly to insert the reductant into the aftertreatment component for a first insertion time between first time intervals. The controller determines an operating condition of the engine, and determines if the operating condition satisfies a predetermined condition. In response to the predetermined condition being satisfied, the controller instructs the reductant insertion assembly to insert the reductant into the aftertreatment component for a second insertion time between second time intervals. The second insertion time is longer than the first insertion time.
Public/Granted literature
- US20170328251A1 SYSTEMS AND METHODS FOR REDUCING NOISE IN REDUCTANT INSERTION ASSEMBLIES Public/Granted day:2017-11-16
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