Abstract: A smart pillow unit and processes for providing active noise cancellation and biofeedback.

Abstract: An exhaust aftertreatment system may include an aftertreatment component and thermoelectric generators. The aftertreatment component is disposed in an exhaust gas passageway. The thermoelectric generators may be disposed in the exhaust gas passageway upstream or downstream of the aftertreatment component. Each of the thermoelectric generators may have a catalytic coating and may include a radially extending fin configured to absorb heat from exhaust gas in the exhaust gas passageway. The fin of at least one of the thermoelectric generators may overlap the fin of at least another one of the thermoelectric generators.

Abstract: An exhaust aftertreatment system may include an aftertreatment component and thermoelectric generators. The aftertreatment component is disposed in an exhaust gas passageway. The thermoelectric generators may be disposed in the exhaust gas passageway upstream or downstream of the aftertreatment component. Each of the thermoelectric generators may have a catalytic coating and may include a radially extending fin configured to absorb heat from exhaust gas in the exhaust gas passageway. The fin of at least one of the thermoelectric generators may overlap the fin of at least another one of the thermoelectric generators.

Abstract: An exhaust aftertreatment system may include an injector, an aftertreatment device and a mixer assembly. The injector may be configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine. The aftertreatment device may be disposed in the exhaust passageway downstream of the injector. The mixer assembly may be disposed in the exhaust passageway upstream of the aftertreatment device and may include a first stage having a plurality of parallel plates and a second stage connected to the first stage and disposed downstream of the first stage. The second stage may include an auger blade. The mixer assembly may divide an exhaust stream into at least two flow paths.

Abstract: An exhaust aftertreatment system may include a housing, an aftertreatment device, and a cantilevered flow distributing element. The housing receives exhaust gas output from an engine and has a main body and an exhaust gas inlet that is angled relative to the main body. The flow distributing element is disposed within the housing upstream of the exhaust aftertreatment device and includes a baffle plate and a collar. The baffle plate is attached to an inner wall of the main body. The collar may include a plurality of first apertures, a downstream axial edge and an upstream axial edge. A portion of the downstream axial edge may abut an upstream-facing surface of the baffle plate. The baffle plate may have a plurality of second apertures extending through the upstream-facing surface. The collar may extend across and partially block at least some of the second apertures.

Abstract: An exhaust aftertreatment system may include an injector, an aftertreatment device and a mixer assembly. The injector may be configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine. The aftertreatment device may be disposed in the exhaust passageway downstream of the injector. The mixer assembly may be disposed in the exhaust passageway upstream of the aftertreatment device and may include a first stage having a plurality of parallel plates and a second stage connected to the first stage and disposed downstream of the first stage. The second stage may include an auger blade. The mixer assembly may divide an exhaust stream into at least two flow paths.

Abstract: An after-treatment system for treating exhaust gas discharged from a combustion engine, the after-treatment system comprising an exhaust after-treatment component including an exhaust after-treatment substrate, the exhaust after-treatment substrate including an inlet face including a first zone having a first catalyst located at a center of the inlet face, and a second zone having a second catalyst located radially outward from the center of the inlet face, wherein an amount of the exhaust gas that travels through the first zone is greater than an amount of the exhaust gas that passes through the second zone, and a catalyst loading of the first catalyst in the first zone is less than a catalyst loading of the second catalyst in the second zone.

Abstract: An exhaust gas treatment device, which includes an outer layer, an inner layer that is at least in part disposed within the outer layer, and an insulation material disposed in an enclosed space between the outer layer and the inner layer, where at least one reservoir disposed with the insulation material is connected to the enclosed space and in fluid communication therewith and a manufacturing method that includes placing an insulation material into an enclosed space between an inner layer and an outer layer for an exhaust gas treatment device and placing the insulation material into a reservoir connected to the enclosed space and in fluid communication therewith.

Abstract: Mattress assemblies and processes that provide user comfort include at least one thermally conductive foam layer consisting essentially of a polymeric elastomer foam matrix and a plurality of thermally conductive particles disposed therein, wherein the plurality of thermally conductive particles are selected from the group consisting of carbon, graphene, graphite, platinum, aluminum, gold, silver, silicon, copper, iron, nickel, stretched polyethylene nanofibers, and mixtures thereof; and a base core layer, wherein the at least one thermally conductive foam layer overlays the base core layer.

Abstract: Energy harvesting mattresses, systems, and methods of cooling mattresses are disclosed herein. In some aspects, the energy harvesting mattress can include a body support having a proximal surface that is configured to support a sleeper and a flexible thermoelectric fabric comprising at least one p-type layer coupled to at least one n-type layer to provide at least one p-n junction. The flexible thermoelectric fabric can be configured to be in thermal communication with the proximal surface of the body support such that when the proximal surface is heated the flexible thermoelectric fabric generates a current.

Abstract: Temperature control mattresses, systems, and methods of cooling mattresses are disclosed herein. In some aspects, temperature control mattresses can include a body support having a proximal surface that is configured to support a human body and a flexible thermoelectric fabric disposed along at least a portion of the body support. The flexible thermoelectric fabric can be disposed such that it is in thermal communication with the proximal surface of the body support and such that the flexible thermoelectric fabric is configured to cool the proximal surface of the body support.

Abstract: An after-treatment system for treating exhaust gas discharged from a combustion engine, the after-treatment system comprising an exhaust after-treatment component including an exhaust after-treatment substrate, the exhaust after-treatment substrate including an inlet face including a first zone having a first catalyst located at a center of the inlet face, and a second zone having a second catalyst located radially outward from the center of the inlet face, wherein an amount of the exhaust gas that travels through the first zone is greater than an amount of the exhaust gas that passes through the second zone, and a catalyst loading of the first catalyst in the first zone is less than a catalyst loading of the second catalyst in the second zone.

Abstract: An engine exhaust after-treatment system including an exhaust passage including a plurality of legs, with an exhaust control valve being positioned at an inlet of each of the legs that is configured to control an amount of exhaust that enters each leg. A desulfurization treatment component is located within each of the legs. An alkaline reagent tank provides an alkaline reagent to the desulfurization treatment component, and a reagent control valve is disposed between the alkaline reagent tank and the desulfurization treatment component. The reagent control valve is configured to control an amount of alkaline reagent that enters the desulfurization component. A controller may be communication with each of the exhaust control valves and reagent control valves, wherein the controller is configured to control the exhaust control valves independently of the reagent control valves.

Abstract: An exhaust treatment component for treating an exhaust produced by an engine. The exhaust treatment component includes a housing, a first exhaust treatment component substrate positioned within the housing, and a dosing module for dosing a reagent exhaust treatment fluid into the exhaust. The dosing module is secured to the housing and positioned upstream of the first exhaust treatment component substrate. An ultrasonic transducer is positioned between the dosing module and the first exhaust treatment component substrate. The ultrasonic transducer is configured to emit a plurality of ultrasonic waves into the exhaust including the reagent exhaust treatment fluid.

Abstract: An exhaust after-treatment system includes an exhaust inlet, an exhaust outlet, and an array of exhaust treatment components disposed in a housing. The housing includes a first connection flange securing the housing to the inlet, a second connection flange securing the housing to the outlet, and a third flange positioned between the first and second flanges. A mounting device is secured to the third flange to independently support the housing relative to the inlet and the outlet.

Abstract: An exhaust after-treatment system includes an exhaust treatment component, a tank for holding an exhaust treatment fluid, and an exhaust treatment fluid dosing system. The dosing system includes a fluid distributor providing exhaust treatment fluid under pressure to a plurality of dosing modules that dose exhaust treatment fluid into the exhaust stream and a return for returning unused exhaust treatment fluid to the tank. A valve is positioned between the fluid distributor and the return and is configured to allow a flow of exhaust treatment fluid from the return to the fluid distributor before being returned to the tank during a purge operation. A controller is configured to open the valve and allow communication between the return and the fluid distributor during the purge operation such that unused exhaust treatment fluid drains during the purge operation.

Abstract: An exhaust after-treatment system including at least one exhaust treatment component (18); and a particulate matter dispersion device (40) located upstream of the exhaust treatment component (18). The particulate matter dispersion device (40) includes at least one nozzle line (61) having a plurality of nozzles (58) formed therein, and the particulate matter dispersion device (40) is operable to inject compressed gas towards the exhaust treatment component (18) to substantially minimize build-up of particulate matter at the exhaust treatment component (18).

Abstract: A smart pillow unit and processes for providing active noise cancellation and biofeedback.

Abstract: An exhaust system including a selective catalytic reduction (SCR) component and an oxidation catalyst component. The exhaust system also includes an exhaust treatment fluid injection system for dispersing an exhaust treatment fluid into an exhaust stream at a location adjacent either the SCR component or the oxidation catalyst component, wherein the exhaust treatment fluid injection device includes a common rail that provides the exhaust treatment fluid under pressure to a plurality of injectors that dose the exhaust treatment fluid into the exhaust stream. The exhaust treatment fluid injection device also includes a return rail for returning unused exhaust treatment fluid to the fluid source. Each of the common rail and return rail can be configured to allow drainage of the exhaust treatment fluid as a freeze-protection feature.

Abstract: An active thermal mattress assembly having a plurality of sensors disposed within the active thermal mattress assembly, wherein at least one of the plurality of sensors monitors a surface temperature of the active thermal mattress assembly. The active thermal mattress assembly also including a temperature control system disposed within the active thermal mattress assembly and a processor disposed within the active thermal mattress assembly. The processor receives signals from each of the plurality of sensors and responsively controls an operation of the temperature control system to maintain an ideal surface temperature of the active thermal mattress assembly.