Fleetguard, Inc.

Cummins Emission Solutions Inc.

Cummins Filtration Ip, Inc.

Jeffrey T Sedlacek

David M Grimm

Collin P Veele

Douglas Robert Farnsworth

Shaila Sangmeshwar Kalyanshetti

Patrick Klein

Jay V Warner

Mark P Adams

John M Bosanec, Jr

Christopher M Cremeens

A water drainage assembly for an aftertreatment system includes: a first tube configured to be coupled to an outlet conduit of the aftertreatment system; a second tube having a first end coupled to an outer surface of the first tube, a second end opposite the first end, and an intermediate portion located between the first end and the second end; and a baffle plate located in the second tube. The intermediate portion of the second tube surrounds an end portion of the first tube such that a volume is defined between the end portion of the first tube and the intermediate portion of the second tube. The second tube comprises a drain port configured to allow water to drain from the volume defined between the end portion of the first tube and the intermediate portion of the second tube.

Water drainage assemblies for aftertreatment systems

A water drainage assembly for an aftertreatment system includes: a tube having an inlet structured to be coupled to an outlet conduit of an aftertreatment system; a drain port extending through the tube; a first baffle disposed in the tube, a first baffle first end attached to an inner surface of the tube at a first location, wherein at least a portion of the first baffle is inclined downwards with respect to gravity; and a second baffle disposed in the tube below the first baffle, a second baffle first end being coupled to the inner surface of the tube at a second location that is opposite to and below the first location, wherein at least a portion of the second baffle is inclined upwards with respect to gravity.

A water drainage assembly for an aftertreatment system comprises a first tube structured to be coupled to an outlet conduit of the aftertreatment system and has a first cross-sectional width. A second tube is disposed radially around the first tube. A first end of the second tube is coupled to a radially outer surface of the first tube. A portion of the second tube has a second cross-sectional width larger than the first cross-sectional width such that a volume is defined between the first and second tubes. A drain port is defined in the second tube proximate to the first end. The assembly is structured such that water flowing into the water drainage assembly flows into the volume defined between the first tube and the second tube and is expelled therefrom via the drain port.

An exhaust aftertreatment system has a side inlet flow diffuser and provides even flow exhaust distribution to an aftertreatment element.

Exhaust aftertreatment system with flow distribution

An ultra-compact combination exhaust muffler and aftertreatment element and water trap assembly provides exhaust flow through an aftertreatment element surrounded by an annular water collection space receiving water diverted and shed from an upper dome cap above the aftertreatment element and below the upper outlet. In a further embodiment, the assembly includes housing sections separable from each other at a service joint axially between axial ends of the aftertreatment element for ease of servicing. In a further aspect, the aftertreatment element has an axial end within a housing section saving axial extension space.

Compact combination exhaust muffler and aftertreatment element and water trap assembly

An aftertreatment exhaust assembly includes housing sections separable from each other at a service joint axially between axial ends of an aftertreatment element for ease of servicing. The aftertreatment element has an axial end within a housing section saving axial extension space.

Space saving serviceable exhaust aftertreatment assembly

An exhaust aftertreatment system and method enables servicing by a single technician and provides singular location mounting and alignment.

Serviceable aligned exhaust aftertreatment assembly

An apparatus, system, and method for measuring static pressure in a warm gas flow while minimizing particulate deposit formation includes a housing containing the flow of gas, a pressure sensor, and a heated pressure sampling tube attached to the sensor, with the tube sampling the gas flow. The heated sampling tube reduces the temperature gradient between the gas and the tube, reducing thermophoretic forces that contribute to deposit formation. The sampling tube extends through the housing into the gas flow in one embodiment, enabling the gas to heat the tube and locating the open end of the tube in a higher-flow area of the gas, further reducing deposit formation.

Growing community of inventors

Stoughton, WI, United States of America

Jeffrey T Sedlacek