Abstract: An aftertreatment module is disclosed for use with an engine. The aftertreatment module may have an inlet housing at least partially defining an inlet passage for exhaust, and at least one mixer disposed in the inlet passage. The aftertreatment module may also have an outlet housing at least partially defining an outlet passage for exhaust, and a catalyst housing removably connected between the inlet housing and the outlet housing. The aftertreatment module may further have a plurality of catalyst substrates configured to be mounted in the catalyst housing, to receive exhaust from the inlet passage in parallel, and to discharge exhaust to the outlet housing in parallel.

Abstract: An aftertreatment module may include a housing with an inlet port and an outlet port. A selective catalytic reduction catalyst may be disposed between the inlet port and the outlet port. A diffuser plate may be disposed downstream of the inlet port and upstream of the selective catalytic reduction catalysts. The diffuser plate may include a first section including a first degree of porosity and a second section including a second degree of porosity. The first degree of porosity may be greater than the second degree of porosity.

Abstract: An aftertreatment module is disclosed for use with an engine. The aftertreatment module may have an inlet housing at least partially defining an inlet passage for exhaust, and at least one mixer disposed in the inlet passage. The aftertreatment module may also have an outlet housing at least partially defining an outlet passage for exhaust, and a catalyst housing removably connected between the inlet housing and the outlet housing. The aftertreatment module may further have a plurality of catalyst substrates configured to be mounted in the catalyst housing, to receive exhaust from the inlet passage in parallel, and to discharge exhaust to the outlet housing in parallel.

Abstract: 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.

Abstract: An aftertreatment module may include a housing with an inlet port and an outlet port. A selective catalytic reduction catalyst may be disposed between the inlet port and the outlet port. A diffuser plate may be disposed downstream of the inlet port and upstream of the selective catalytic reduction catalysts. The diffuser plate may include a first section including a first degree of porosity and a second section including a second degree of porosity. The first degree of porosity may be greater than the second degree of porosity.

Abstract: A spreader bar assembly is provided. The spreader bar assembly includes a pair of arms disposed in a scissor type arrangement. The pair of arms defines an axis of rotation therebetween. The spreader bar assembly further includes a contact member attached to an end of each of the pair of arms. The contact member of the spreader assembly is configured to contact with a catalyst. The spreader assembly also includes a sealing member. The sealing member is provided in association with the contact member. The sealing member is disposed on a first side of each of the pair of arms such that on exerting a force on the sealing member on the first side of each of the pair of arms, an opposing force is generated on a second side of each of the pair of arms disposed substantially opposite the first side of each of the pair of arms.

Abstract: 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.

Abstract: A modular aftertreatment assembly for an engine system is provided. The modular aftertreatment assembly includes a housing having a first section, a second section, and a third section. The modular aftertreatment assembly also includes a mixing tube positioned within and extending from the second section of the housing. The modular aftertreatment assembly further includes a diffusion assembly having a first diffusion and a second diffusion plate. The modular aftertreatment assembly includes a selective catalytic reduction assembly. The modular aftertreatment assembly also includes a plurality of perforations provided on an outlet face of the first bank of the plurality of catalysts and the second bank of the plurality of catalysts respectively. The modular aftertreatment assembly further includes a pair of outlets provided in association with the first and third sections of the housing respectively.

Abstract: An alignment pin attachable to a first member for piloted engagement with an aperture defining a circular edge portion within a second member is provided. The alignment pin includes a curved tip portion. A piloting section includes a conical locating portion extending circumferentially from the curved tip portion. A cylindrical locating portion extending from the conical locating portion defines a first height and a first diameter. An engagement portion extending from the cylindrical locating portion defines a second height and a second diameter. The engagement portion of the alignment pin is structured and arranged to engage within a receiving hole in the first member. The second member is coupled with the first member through piloted engagement between the circular edge portion of the second member and the sequential piloted engagement with the conical locating portion and the cylindrical locating portion of the alignment pin.

Abstract: 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.

Abstract: A spreader bar assembly is provided. The spreader bar assembly includes a pair of arms disposed in a scissor type arrangement. The pair of arms defines an axis of rotation therebetween. The spreader bar assembly further includes a contact member attached to an end of each of the pair of arms. The contact member of the spreader assembly is configured to contact with a catalyst. The spreader assembly also includes a sealing member. The sealing member is provided in association with the contact member. The sealing member is disposed on a first side of each of the pair of arms such that on exerting a force on the sealing member on the first side of each of the pair of arms, an opposing force is generated on a second side of each of the pair of arms disposed substantially opposite the first side of each of the pair of arms.

Abstract: A catalytic converter and muffler including a housing having an inlet disposed between a first end and a second end of the housing to introduce exhaust gases into an inlet chamber. A plurality of first exhaust treatment banks disposed between the inlet and the first end of the housing to allow the exhaust gases flow towards the first end from the inlet chamber into an end chamber. A mixing tube to direct the exhaust gases towards the second end from the end chamber into a flow distributor and a plurality of second exhaust aftertreatment banks and flow into an outlet chamber. At least one resonator chamber defined within the housing to attenuate noise in the exhaust gases.

Abstract: A catalytic converter and muffler including a housing having an inlet disposed between a first end and a second end of the housing to introduce exhaust gases into an inlet chamber. A plurality of first exhaust treatment banks disposed between the inlet and the first end of the housing to allow the exhaust gases flow towards the first end from the inlet chamber into an end chamber. A mixing tube to direct the exhaust gases towards the second end from the end chamber into a flow distributor and a plurality of second exhaust aftertreatment banks and flow into an outlet chamber. At least one resonator chamber defined within the housing to attenuate noise in the exhaust gases.

Abstract: An aftertreatment brick can be installed in a brick compartment of an aftertreatment module with a releasable securing assembly. The releasable securing assembly includes a first bracket, a second bracket, and a band clamp. The first bracket is installed in the brick compartment proximate a port. The aftertreatment brick is placed on the first bracket adjacent the port and the second bracket is placed about the aftertreatment brick above the first bracket. The band clamp is slid over the first and second brackets and tightened to secure the brackets about the brick.

Abstract: 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.

Abstract: A fluid supply system configured to be utilized with a coolant system of an engine, the fluid supply system including; a fluid tank, a fluid pump coupled to the fluid tank and a thermal management system in thermal communication with the fluid tank and the fluid pump, wherein the thermal management system includes; a first coolant circuit in thermal communication with the fluid tank and a second coolant circuit in thermal communication with the fluid pump, wherein flow of coolant from the coolant system through the first fluid circuit and second fluid circuit is in parallel when coolant flows through the second fluid circuit.