Caterpillar Inc.

Caterpillar Motoren Gmbh & Co. Kg

Andrew Michael Denis

Kevin L Martin

Paul Arthur Zwart

Satya Ramakrishna Manda Venkata Naga

Mirza Pervaiz Baig

Kristian N Engelsen

Eric Paul Spaeth

Min Xiao

Raymond Bassilli Gerges

Pradyumna Venkata Rao

Rick E Jeffs

Yong Yi

Anthony C Rodman

Jack Albert Merchant

Jayaraman Krishnapura Venkataraghavan

Joshua Lynn Ratts

Jason Hudgens

Raymond Upano Isada

Thomas W Manning

Zhenhua Zhang

Mohamed I Daoud

Ian Aguirre

Jianping Pan

Julian Justin

Aaron Harmon

Hauke Holst

Jun Zuo

Michael P Boahene

Nagaraju Manchikanti

Kimberly Melissa Stanek

Thorsten Tuexen

Jan Dreves

Katherine D Driscoll

Ramakrishna V Manda

Ethan D Sanborn

Zhang Zhenhua

Wesley Gene Benson

Wengang Chen

Eric A Scott

Qiang Zhu

Timothy J Alcenius

A nozzle including a first end and a second end. The first end includes at least a first inlet and a second inlet and the second end includes a plurality of outlets. An exterior surface extends from the first end to the second end of the nozzle. A plurality of vanes are disposed on the exterior surface and extend from the first end to the second end of the nozzle. A plurality of channels form along the exterior surface of the nozzle.

Reductant nozzle with helical channel design

An emission module for treating exhaust gas including a housing, a first catalyst substrate positioned within the housing and having an inlet end, the first catalyst substrate defining a plurality of flow passages extending longitudinally from the inlet end, and a first restrictor plate positioned at the inlet end of the first catalyst substrate to block exhaust flow through a first portion of the plurality of flow passages while allowing exhaust flow through the remainder of the plurality of flow passages.

Emissions module with adjustable sizing

A NOx sensor protection system includes a flow control device forming an internal chamber with exhaust and shield gas ports and a NOx sensor. The flow control device is configured to selectively allow a flow of exhaust from an exhaust pipe to the NOx sensor when an internal combustion engine is operated with a first fuel, and to selectively direct shield gas from the shield gas port at an angle of 135&#xb0; to 180&#xb0; to the NOx sensor to inhibit the flow of exhaust from the exhaust pipe to the NOx sensor when the engine is operated with a second fuel.

NOx sensor protection system

A nozzle including a first channel, a second channel annularly disposed around the first channel, and a plurality of third channels fluidly connected to the second channel. The nozzle includes an interior cavity having a first inlet fluidly connected to the first channel and a plurality of second inlets. Individual second inlets of the plurality of second inlets fluidly connect to individual third channels of the plurality of third channels. The interior cavity includes an outlet and an impinging surface located opposite the first inlet.

Reductant nozzle with radial air injection

A nozzle including an interior cavity, a structure disposed within the interior cavity, a first channel fluidly connected to the interior cavity, one or more second channels fluidly connected to the interior cavity, and one or more outlets coupled to the interior cavity. The structure includes a bottom impinging surface that is at least partially concave, one or more legs that support the bottom impinging surface, and a top surface located opposite the bottom impinging surface.

Reductant nozzle with concave impinging surface

A nozzle including an exterior surface extending between a first end and a second end of the nozzle. The exterior surface including spray outlets disposed at the second end. An interior cavity is disposed interior to the exterior surface. A first channel and a second channel fluidly connect to the interior cavity. One or more third channels fluidly connect between the interior cavity and an individual spray outlet of the spray outlets. The one or more third channels rotate about a longitudinal axis of the nozzle and angle in a direction away from the longitudinal axis of the nozzle.

Reductant nozzle with swirling spray pattern

An injection apparatus includes an injection mixing platform located within an exhaust pipe; wherein the injection mixing platform includes two or more mixing blades extending radially from a common central hub, at least one of the mixing blades being coupled to a DEF inlet to receive DEF from an external tank, wherein each of the two or more mixing blades includes at least one nozzle to eject the DEF into an exhaust stream, the two or more mixing blades being statically mounted to an inner surface of the exhaust pipe.

Multi-nozzle design to eliminate downstream mixing devices

A housing for an aftertreatment system is disclosed. The housing includes a wall that defines an interior cavity. The interior cavity is configured to enclose at least one aftertreatment component. Moreover, the wall has at least one corrugated panel having alternating grooves and ridges.

Housing for aftertreatment systems

An injector mounting assembly for supporting an injector is described. The injector mounting assembly includes an upstream wall and a downstream wall coupled to the upstream wall. The injector mounting assembly further includes a thermoelectric cooler coupled to at least one of the upstream wall and the downstream wall. The thermoelectric cooler is disposed in thermal contact with the injector and configured to exchange heat with the injector.

Injector mounting assembly

A mixing system for an aftertreatment system is disclosed. The mixing system includes a mixing tube. The mixing tube is provided in fluid communication with an exhaust conduit. The mixing system also includes a reductant injector positioned at an injection location on the mixing tube. The mixing system further includes a mixer assembly positioned downstream of the injection location. The mixer assembly includes a plurality of mixing elements provided in a series arrangement, such that each of the plurality of mixing elements is provided downstream of one another.

Mixing system for aftertreatment system

A boss configured to mount a nitrous oxide sensor in an exhaust conduit is disclosed. The boss includes a first tier configured to contact with an exterior surface of the exhaust conduit, the first tier defined by a first diameter and a first height. The boss also includes a second tier extending from the first tier. The second tier is configured to be disposed within an interior space defined within the exhaust conduit. The second tier is defined by a second diameter and a second height. Further, the second diameter is sized smaller than the first diameter. The boss further includes a condensation protection feature configured to direct condensation away from the nitrous oxide sensor.

Sensor mounting apparatus

An aftertreatment system and method treats exhaust gasses produced by an internal combustion process or similar process. The system includes an aftertreatment module having at least one sleeve extending between a first end and a second end. One or more aftertreatment bricks may be axially inserted through an opening disposed in the first end of the sleeve. The aftertreatment brick may include an substrate matrix surrounded by a tubular, protective mantle. To prevent the aftertreatment bricks from unintentionally exiting the sleeve, a retention ring is releasably engaged with the first end of the sleeve. The retention ring may include a dimension that is less than a dimension of the opening in the first end so that at least a portion of the retention ring contacts the mantle of the aftertreatment brick.

System and method for retaining aftertreatment bricks

An arrangement for mounting at least one electrical component to a portion of an aftertreatment module, the arrangement including; at least one standoff member coupled between the electrical component and the portion of the aftertreatment module, and an enclosure substantially surrounding at least three sides of the electrical component.

Sensor mounting arrangement

One or more aftertreatment bricks are axially inserted through an opening in the first end of a tubular sleeve of an aftertreatment system. The aftertreatment brick includes a substrate matrix and a mantle disposed around the substrate matrix. The mantle further includes a lip arranged to extend through the opening of the sleeve. One or more channel pockets are secured proximate to the opening of the sleeve and oriented radially outward with respect to the sleeve axis. To retain the aftertreatment brick in the sleeve, a clamping assembly is used that includes a hook, a fastener, and a capture nut. The capture nut is installed and accommodated in the channel pockets. The hook engages the protruding lip of the aftertreatment brick and the fastener secures the hook to the capture nut received in the channel pocket.

System and method for accommodating aftertreatment bricks

An aftertreatment system and method treats exhaust gasses produced by an internal combustion process or a similar process. The aftertreatment system includes an aftertreatment module having a sleeve extending between a first end and a second end. One or more aftertreatment bricks are axially inserted into a sleeve opening disposed in the first end of the sleeve. To prevent the aftertreatment bricks from unintentionally exiting the sleeve, a captive ring is disposed around the first end of the sleeve as a loose fitting collar. The captive ring is restrained on the sleeve by a circumferential bead protruding about the first end. The captive ring can couple with a retention ring placed adjacent the first end. When coupled to the captive ring, a portion of the retention ring extends partially across and blocks the sleeve opening, preventing the aftertreatment brick from exiting the sleeve.

Growing community of inventors

Peoria, IL, United States of America

Andrew Michael Denis