Patent application number | Description | Published |
20120222413 | Poka-Yoke Mounting System for an Exhaust Treatment Device - An exhaust treatment system includes an emissions treatment device for treating exhaust emitted from an internal combustion engine. The exhaust treatment system includes a frame adapted to support first and second spaced apart portions of the exhaust treatment system. The emissions treatment device interconnects the first and second portions and is in receipt of exhaust from the first portion and provides treated exhaust to the second portion. A first bracket is fixed to the frame and includes one of a protrusion and a receptacle. A second bracket is adapted to be fixed to the emissions treatment device and includes the other of the protrusion and the receptacle. The protrusion is positioned within the receptacle when the emissions treatment device is properly positioned. The protrusion interferes with one of the second bracket and the emissions treatment device to preclude assembly when the emissions treatment device is improperly positioned. | 09-06-2012 |
20130343959 | COMMON RAIL REDUCTANT INJECTION SYSTEM - 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. | 12-26-2013 |
20140041369 | Poka-Yoke Mounting System For An Exhaust Treatment Device - An exhaust treatment system includes an exhaust treatment device having a stepped outer diameter. First and second clamps each include a stepped inner diameter such that the clamps engage the exhaust treatment device and other portions of the exhaust treatment system when the exhaust treatment device is properly oriented. The exhaust treatment device interferes with one of the clamps to preclude coupling the exhaust treatment device to an adjacent portion of the exhaust treatment system when an attempt is made to install the exhaust treatment device in a reversed improper orientation. A consistent exhaust flow direction through an exhaust treatment device such as a diesel particulate filter may be maintained through use of the inventive system. | 02-13-2014 |
20140053539 | EXHAUST COMPONENT MOUNTING SYSTEM - An exhaust treatment system including an exhaust passage in communication with an engine that produces an exhaust. An exhaust canister is coupled to the exhaust passage, and the exhaust canister supports a plurality of exhaust treatment components therein for treating the exhaust, wherein exhaust canister is removable from the exhaust passage, and the exhaust treatment components are removable from the exhaust canister. | 02-27-2014 |
20140114619 | Burner Outlet Designs for Locomotive Burner Integration - A method of determining an optimized position for a burner in an exhaust aftertreatment system includes estimating temperature distributions across faces of exhaust treatment devices positioned within parallel paths based on an initial burner position upstream of the parallel paths. A temperature distribution across the faces of the exhaust treatment device is again estimated based on a changed burner position. A difference between the estimates is determined. The changing, estimating and determining steps are repeated to correlate the burner position with a temperature variance across the faces. An optimized burner position is determined based on minimizing the temperature variance across the faces of the exhaust treatment devices. | 04-24-2014 |
20140150411 | REDUCTANT INJECTION CONTROL SYSTEM - An exhaust system including a plurality of exhaust treatment devices, plurality of injectors for dosing an exhaust treatment fluid into an exhaust stream, and a controller for controlling each of the plurality of injectors. The controller actively controls an amount of exhaust treatment fluid dosed into the exhaust stream by each of the plurality of injectors based on at least one of an exhaust flow rate and a temperature of the exhaust stream. | 06-05-2014 |
20140150450 | EXHAUST COMPONENT MOUNTING STRUCTURE - An exhaust after-treatment system including a first exhaust treatment device having a first mounting surface and a second mounting surface, and a second exhaust treatment device and a third mounting surface and a fourth mounting surface. A first mounting structure is attached to the first mounting surface of the first exhaust treatment device, and a second mounting structure attached to the third mounting surface of the second exhaust treatment device, wherein the second and fourth mounting surfaces are secured to each other. | 06-05-2014 |
20140166141 | Reductant Injection System with Control Valve - An exhaust system including an exhaust flow path, an exhaust treatment fluid tank, and a dosing module in communication with the exhaust treatment fluid tank. A three-way valve communicates with the dosing module. A first nozzle and a second nozzle communicate with the three-way valve for dosing the exhaust treatment fluid into the exhaust flow path, wherein the three-way valve is operable to control an amount of the exhaust treatment fluid provided to the first and second nozzles from the dosing module. | 06-19-2014 |
20140238504 | UREA COMMON RAIL - 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. | 08-28-2014 |
20140260192 | Exhaust System For Dual Fuel Engines - Exhaust system for a dual-fuel engine that is provided with a first fuel and a second fuel. The exhaust system includes an exhaust passageway, with an exhaust treatment component provided in the exhaust passageway. A thermal enhancement device communicates with the exhaust passageway and is located upstream from the exhaust treatment component, wherein the thermal enhancement device is operable to raise a temperature of an exhaust located in the exhaust passageway during a switch between the first fuel and the second fuel that is provided to the dual-fuel engine. The exhaust treatment system can also include a by-pass pipe in communication with the exhaust passageway that by-passes the exhaust treatment component, wherein during combustion of the first fuel by the dual-fuel engine, the by-pass pipe is open. During combustion of the second fuel by the dual-fuel engine, the by-pass pipe is closed. | 09-18-2014 |
20140260205 | Modular Exhaust Treatment System - A modular exhaust after-treatment system including a plurality of exhaust after-treatment modules. Each module includes a housing defining a non-linear flow path arranged between an inlet passage and an outlet passage. The non-linear flow path includes a first portion adjacent the inlet passage that includes a first exhaust treatment component, a second portion downstream from the first portion, and a third portion downstream from second portion adjacent the outlet passage, wherein the third portion includes a second exhaust treatment component. The plurality of exhaust after-treatment modules are secured to each other in either horizontally or vertically. | 09-18-2014 |
20140334983 | Reductant Sensor System - An exhaust treatment fluid system includes a tank housing for storing an exhaust treatment fluid. A suction tube includes a first end positioned within the housing and a second end in communication with a suction port of the housing. An elongated laminar flow device is secured to a discharge port of the housing such that exhaust treatment fluid flows along surfaces thereof as the exhaust treatment fluid is returned to the tank housing. The laminar flow device includes a non-circular cross-section. | 11-13-2014 |
20150040547 | Mirrored Two-Stage Mixer - A mixer for an exhaust aftertreatment system may include a housing and first and second groups of deflectors. The first group of deflectors may be disposed within the housing and may be arranged relative to each other to direct fluid flowing through the first group of deflectors into a first pair of vortices that rotate in opposite directions relative to each other. The second group of deflectors may be disposed within the housing and may be arranged relative to each other to direct fluid flowing through the second group of deflectors into a second pair of vortices that rotate in opposite directions relative to each other. The first and second groups of deflectors may be rotationally symmetric with each other about a longitudinal axis of the housing. | 02-12-2015 |
20150047326 | Water Injection Exhaust Treatment System - An exhaust aftertreatment system may include a reductant supply and diluent supply conduits, an injector and a control module. The reductant supply conduit includes a first valve controlling a flow of reductant through the reductant supply conduit. The diluent supply conduit includes a second valve controlling a flow of diluent through the diluent supply conduit. The injector is in fluid communication with the reductant supply conduit and the diluent supply conduit and is configured to provide fluid to an exhaust stream. The control module may control the first valve to provide a targeted amount of reductant through the injector. The control module may control the second valve to maintain a fluid flow rate through the injector that is at or above a minimum flow rate threshold of the injector based on a difference between a flow rate through the reductant supply conduit and the minimum flow rate threshold. | 02-19-2015 |
20150071822 | Vertical ultrasonic decomposition pipe - 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. | 03-12-2015 |
20150071826 | AXIAL FLOW ATOMIZATION MODULE WITH MIXING DEVICE - An engine exhaust after-treatment system including an exhaust conduit for carrying an engine exhaust; a dosing module for dosing the engine exhaust with a reagent exhaust treatment fluid, the dosing module dispersing the reagent exhaust treatment fluid into plurality of conical spray paths; and a mixing device positioned in the exhaust conduit downstream from the dosing module for intermixing the reagent exhaust treatment fluid and the engine exhaust, the mixing device including a plurality of mixing blades in a number that is equal to a number of the conical spray paths, wherein the mixing device is oriented in the exhaust conduit based on an orientation of each of the conical spray paths | 03-12-2015 |