Cummins Emission Solutions Inc.

Vipin Iyer

Jason D Meier

Ken Hummel

Tyler Kent Lorenz

Achuth Munnannur

Rahul B Kallurwar

Vinay Kumar Joshi

Stephanie F Severance

Karthik Muruganantham

Justin Kruer

James Klingbeil

Gordon Loraas

Deepesh Goyal

A system and method for providing a selective catalytic reduction system with a doser mounting system. A mounting plate includes an aperture in a surface with a plurality of fastener brackets coupled to the surface. The fastener brackets are positioned about a peripheral portion of the aperture. The fastener brackets each include an opening for inserting a fastener. The opening is elevated from the surface of the mounting plate. The fasteners each have a fastener head and a fastener shaft positioned in the opening of the fastener brackets. The fastener shaft extends from the opening in a direction having an orthogonal component with respect to the surface of the mounting plate. A doser is coupled to the doser mounting system. The fastener shafts extend through openings in legs of the doser. An injector port of the doser is aligned with the aperture in the mounting plate.

Doser mounting system, components and methods

An aftertreatment system comprises a housing having an inlet, an outlet and a sidewall. The housing defines an internal volume structured to receive an exhaust gas via the inlet. The sidewall defines an access opening. An access panel is operatively coupled to the sidewall and covers the access opening. The access panel defines a plurality of throughholes. Each of the plurality of throughholes are configured to receive a fastener therethrough for removably coupling the access panel to the sidewall. An injection port is also defined in the access panel. An injector is positioned on the access panel. The injector is removably coupled to the access panel via a coupling assembly so that the injector is in fluidic communication with the internal volume via the injection port. A SCR system is disposed in the internal volume and includes at least one catalyst formulated to decompose constituents of the exhaust gas.

Aftertreatment system with access panel

An aftertreatment system comprises a housing defining an internal volume. The housing includes an inlet, an outlet and a first sidewall. A sleeve is positioned within the internal volume and protrudes through the first sidewall. An inner shell is positioned within an inner region defined by the sleeve and defines a recess therein. The inner shell spaced apart from the sleeve so as to define a channel therebetween. A base is positioned within the recess and includes an injection port which is in communication with the internal volume. An injector is disposed on the base and is disposed completely within the recess. The injector is in fluidic communication with the internal volume via the injection port. The injector is configured to inject an exhaust reductant into the internal volume via the opening. A cover plate can be disposed over the recess and structured to prevent objects from impacting the injector.

Recessed exhaust reductant injector with cover plate

A diesel oxidation catalyst component may include an inlet, an outlet, and a catalyst chamber body in fluid communication with the inlet and the outlet. An angled jacking bolt assembly is configured to secure a diesel oxidation catalyst within a catalyst chamber defined by the catalyst chamber body. In some implementations, a spacing component or a second diesel oxidation catalyst may be included and secured by the angled jacking bolt assembly. The catalyst chamber body may include an access panel assembly that includes an access panel and securing bolts. The access panel assembly may substantially fluidly seal an opening defined by a mount of the catalyst chamber body when the access panel is secured to the mount by the plurality of securing bolts. The opening may be sized to permit removal of the diesel oxidation catalyst from within the catalyst chamber.

Dual fuel diesel oxidation catalyst with removable catalysts

An aftertreatment system comprises a housing defining an internal volume. The housing includes an inlet, an outlet and a sidewall defining a recess therein. A base is positioned within the recess. The base includes an injection port which is in communication with the internal volume. An injector is disposed on the base and is disposed completely within the recess. The injector is in fluidic communication with the internal volume via the injection port. The injector is configured to inject an exhaust reductant into the internal volume via the opening. A cover plate can be disposed over the recess and structured to prevent objects from impacting the injector.

Growing community of inventors

Madison, WI, United States of America

Vipin Iyer