| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 060317000 | Exhaust and external fluid mingling structure | 48 |
| 20090038301 | SECONDARY AIR SUPPLY DEVICE AND METHOD FOR INTERNAL COMBUSTION ENGINE - A secondary air supply device for an internal combustion engine includes an air pump that can be actuated while the internal combustion engine is stopped. An air passage connects the air pump and an exhaust passage of the internal combustion engine and an air supply control section controls the air pump so as to switch the air pump from a stopped state to an actuation state a predetermined time after the internal combustion engine is stopped. The secondary air supply device utilizes an air supply system including the air pump and the air passage to supply air to the exhaust passage. | 02-12-2009 |
| 20090139217 | EXHAUST GAS TEMPERATURE REDUCTION DEVICE FOR AFTERTREATMENT DEVICES - A motor vehicle exhaust system has at least a first housing for a pollution control element, a nozzle in the housing and a ventilation path into the housing through which outside air is drawn into the exhaust system for mixing with an exhaust flow following the nozzle. | 06-04-2009 |
| 20090211237 | Injection Device - A device is provided for injection of a liquid agent, such as fuel or reducing agent, into the exhaust line from a combustion engine. The device ( | 08-27-2009 |
| 20090266064 | Exhaust gas additive/treatment system and mixer for use therein - An exhaust mixer ( | 10-29-2009 |
| 20090282818 | Tail pipe exhaust cooling device - An exhaust cooling device ( | 11-19-2009 |
| 20090282819 | EXHAUST EMISSION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - In an exhaust emission control system for an internal combustion engine, an exhaust gas recirculation device that operates so as to partially open an exhaust valve to introduce exhaust gas into a cylinder in an intake stroke is provided; a secondary air passage capable of supplying secondary air to an exhaust passage is connected to the exhaust passage; and a one-way valve opened by negative pressure applied from the cylinder to the exhaust passage following an operation of the exhaust gas recirculation device in the intake stroke is provided in the secondary air passage. Accordingly, it is possible to provide an exhaust emission control system for an internal combustion engine that allows secondary air to be supplied into an exhaust passage to reduce HC and CO concentrations and also a NOx concentration in an exhaust gas without using an air pump regardless of an exhaust system structure of the internal combustion engine. | 11-19-2009 |
| 20100000204 | Passive Secondary Air Delivery System for Two Bed Catalyst System - A passive secondary air delivery system for a two bed catalyst is provided. The system delivers passive secondary air to the second catalyst bed to facilitate oxidation of CO and remaining unburned HC. In a turbocharged engine, the secondary air may be provided from the compressor side of the turbocharger. Control of the amount of air bled from the turbocharger is provided by an orifice in the pipe connecting the turbocharger to the catalyst bed. No active controls are required. In non-turbocharged engines, passive secondary air may be provided by a venturi mixer ported to ambient positioned between the two catalyst beds. In either embodiment, no moving parts or active controls are required. | 01-07-2010 |
| 20100043412 | Exhaust diffuser for a truck - An exhaust diluting and diffusing apparatus includes a pipe mountable on a exhaust stack pipe, and having a flared skirt inlet to define an annular inlet, a mixing section adjacent the inlet, and an exhaust section formed as a pipe section with a multiplicity of holes. The apparatus pipe has a diameter greater than the diameter of the exhaust stack on which it is mounted. | 02-25-2010 |
| 20100107616 | EXHAUST GAS ASPIRATOR - According to one representative embodiment, an aspirator for cooling exhaust gas from an internal combustion engine includes a nozzle section, an expansion section, and an air entrainment section. The nozzle section is communicable in exhaust receiving communication with the internal combustion engine. The nozzle section includes a plurality of nozzles through which an exhaust gas stream is flowable. The expansion section is communicable in exhaust receiving communication with the plurality of nozzles. The air entrainment section is communicable in air supplying communication with the expansion section. The air is mixable with the exhaust gas within the expansion section. | 05-06-2010 |
| 20100126155 | APPARATUS AND METHOD FOR COOLING AN EXHAUST GAS - An exhaust gas cooling apparatus and method for cooling an exhaust gas is provided. The exhaust cooling apparatus having a first fluid conduit having a variable nozzle opening disposed at one end of the first fluid conduit, the variable nozzle opening being defined by a shape memory alloy extending from the first fluid conduit; and a second fluid conduit having an inlet end and an outlet end, the variable nozzle opening being disposed in the second fluid conduit proximate to the inlet end of the second fluid conduit such that a fluid inlet opening is disposed about an outer periphery of the variable nozzle opening and an inner surface of the inlet end of the second fluid conduit, the shape memory alloy varying the size of the variable nozzle opening by moving toward or away from a center line of the first fluid conduit in response to a temperature of an exhaust gas flowing through the first fluid conduit. | 05-27-2010 |
| 20100186396 | Secondary air system - A secondary air system for the supply of secondary air into at least one exhaust gas outlet passage of a cylinder head of an internal combustion engine, wherein at least one secondary air passage provided in the cylinder head is associated with the exhaust gas outlet passage and opens into the exhaust gas outlet passage and into an outer connection surface of the cylinder head. A base plate is provided which can be placed onto the connection surface of the cylinder head and which is provided with secondary air stubs which each engage into a secondary air passage when the base plate is in place. The base plate is provided on its outer side remote from the connection side with at least one hood via which the supplied secondary air is distributed to a plurality of secondary air stubs. | 07-29-2010 |
| 20110016856 | MIXING AND/OR EVAPORATING DEVICE - A mixing and/or evaporating device ( | 01-27-2011 |
| 20110030358 | EXHAUST GAS PURIFICATION APPARATUS - An exhaust gas purification apparatus includes an oxidation catalyst, a selective catalytic reduction catalyst, a first urea water supplying device, a second urea water supplying device and a controller. The oxidation catalyst oxidizes nitrogen monoxide to nitrogen dioxide. The selective catalytic reduction catalyst is disposed downstream of the oxidation catalyst. The first urea water supplying device is disposed upstream of the oxidation catalyst. The second urea water supplying device is disposed downstream of the oxidation catalyst and upstream of the selective catalytic reduction catalyst. The controller controls the supply of urea water to exhaust gas by the first urea water supplying device and the second urea water supplying device according to temperature of the exhaust gas. | 02-10-2011 |
| 20110047997 | EXHAUST VENTURI APPARATUS, SYSTEM, AND METHOD - An exhaust Venturi apparatus, system, and method includes an elongate housing for passage of exhaust gases, a Venturi mechanism disposed on the housing, the Venturi mechanism configured to create a low-pressure zone in the exhaust gases within the housing, and an aperture disposed in a side of the housing downstream of the Venturi mechanism, such that secondary air outside the housing is drawn into the exhaust stream. The aperture may comprise one or a plurality of apertures, small in cross-section compared to the housing cross-section, for minimizing sound emanating from the exhaust system. The Venturi mechanism may comprise a Venturi plate mounted between the housing and the engine. | 03-03-2011 |
| 20110120105 | ENGINE WASTE GAS TREATMENT METHOD AND APPARATUS - An engine waste gas treatment method and apparatus is disclosed to install an ozone generator in a motor vehicle and electrically connect the ozone generator to the power circuit of the motor vehicle and to connect a shunt pipe between the zone generator and the exhaust pipe of the motor vehicle so that when the motor vehicle is started, the ozone generator starts to generate ozone that is guided by the shunt pipe into the exhaust pipe of the motor vehicle to mix with exhausted engine waste gas, decomposing volatile organic compounds. | 05-26-2011 |
| 20110179780 | SECONDARY AIR SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD OF THE SECONDARY AIR SUPPLY DEVICE - A secondary air supply device for an internal combustion engine includes: an electric air pump that supplies secondary air into an exhaust pipe of the internal combustion engine; a controller that controls actuation of the electric air pump according to an operating state of the internal combustion engine; and an air flow mechanism that rotates the electric air pump by causing air in the electric air pump to flow. The controller uses the air flow mechanism to rotate the electric air pump before energizing the electric air pump. | 07-28-2011 |
| 20110192153 | EXHAUST AFTER TREATMENT ASSEMBLY - The invention relates to an exhaust after treatment assembly. There is a need for such assembly which remains as cool as possible. An exhaust after treatment assembly includes a hollow housing containing an exhaust after treatment unit. The housing forms a nozzle which directs exhaust gases away from the after treatment unit. A shield surrounds and is spaced apart from the housing. A venturi unit receives exhaust gases from the nozzle and receives outside air. The venturi unit pulls outside air over an exterior of the shield and mixes the outside air with exhaust gases flowing though the after treatment unit. The venturi unit is mounted inside a hood which surrounds part of the housing. Outside air is drawn through an annular gap which is formed between an end of the hood and an end of the shield. | 08-11-2011 |
| 20110214419 | EXHAUST DIFFUSER - A flow diffuser for vehicles of the type having an engine and an exhaust pipe generally includes a body including a plurality of inner diffusion ports extending through the body, wherein the body may be attached to an exhaust pipe at or near the exit plane of the exhaust pipe, wherein the body is sized to have a cross-sectional area that is smaller than the cross-sectional area of the exit plane of the exhaust pipe to create a plurality of outer diffusion ports around at least a portion of the outer perimeter of the body when coupled to the exhaust pipe, and one or more extension flaps extending from at least a portion of the outer perimeter of the body. | 09-08-2011 |
| 20110225960 | SECONDARY AIR CONTROL VALVE - A secondary air control valve connected to an exhaust system includes a passage forming member and a valve mechanism. The passage forming member includes a container unit and a plurality of fins. The container unit that defines therein an exit cavity and an exit passage. The plurality of fins projects from the container unit into the exit cavity such that the plurality of fins collides with counter-flow exhaust gas that counter-flows in a direction from the exit passage to the exit cavity through the first opening. The plurality of fins divides the exit cavity into a plurality of cavities, in which counter-flow exhaust gas forms a plurality of vortex flows. | 09-22-2011 |
| 20110283689 | DIESEL EXHAUST FLUID SYSTEM HAVING A RESERVOIR SPACER - Diesel exhaust fluid systems are provided. The diesel exhaust fluid systems include a fluid reservoir having an inner surface and an opening therethrough, a fluid reservoir heating device positioned within the fluid reservoir, and a fluid reservoir spacer positioned within the fluid reservoir and between the inner surface of the fluid reservoir and the fluid reservoir heating device. The fluid reservoir spacer includes first and second portions on opposing sides of the opening through the fluid reservoir | 11-24-2011 |
| 20110308236 | MUFFLER AND ENGINE SYSTEM - A muffler for a combustion engine includes walls forming a chamber, a first inlet, a first outlet, and a conduit. The first inlet is designed to receive exhaust gases from an exhaust duct of the engine. The exhaust gases pass through the chamber when moving from the first inlet to the first outlet. The exhaust gases then exit the muffler through the first outlet. The conduit extends between a second inlet and a second outlet. The second inlet is configured to receive fresh air entering the muffler. The fresh air then exits the conduit and is introduced into the exhaust gases through the second outlet. | 12-22-2011 |
| 20120110990 | MOUNTING UNIT FOR FASTENING AN INJECTION MEMBER TO AN EXHAUST GAS TRACT - A mounting unit ( | 05-10-2012 |
| 20120227389 | RECIPROCATING MACHINE & OTHER DEVICES - The disclosure relates to reciprocating fluid working devices including internal combustion engines, compressors and pumps. A number of arrangements for pistons and cylinders of unconventional configuration are described, mostly intended for use in IC engines operating without cooling. Included are toroidal combustion or working chambers, some with fluid flow through the core of the toroid, a single piston reciprocating between a pair of working chambers, tensile valve actuation, tensile links between piston and crankshaft, energy absorbing piston-crank links, crankshafts supported on gas bearings, cylinders rotating in housings, injectors having components which reciprocate or rotate during fuel delivery. In some embodiments pistons mare rotate while reciprocating. High temperature exhaust emissions systems are described, including those containing filamentary material, as are procedures for reducing emissions during cold start by means of valves at reaction volume exit. Also disclosed are improved vehicles, aircraft, marine craft, transmissions and exhaust emission systems suited to the engines of the invention. | 09-13-2012 |
| 20120240563 | RECLAMATION OF POTABLE WATER FROM MIXED GAS STREAMS - An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores. | 09-27-2012 |
| 20120324872 | Exhaust System - Embodiments of the invention are directed to an exhaust system for a combustion engine with a bent pipe section conducting an exhaust gas flow. The exhaust system further includes an injector for introducing a liquid reduction agent into the exhaust gas flow, which is connected to the pipe section via a connecting pipe so that the injector can introduce the reduction agent through the connecting pipe into an introduction region of the pipe section into the exhaust gas flow. The risk of a crystallisation of the reduction agent can be reduced with a return flow plate, which in the pipe section is arranged upstream of the introduction region. | 12-27-2012 |
| 20130025268 | METHOD FOR OPERATING A DELIVERY UNIT FOR A REDUCING AGENT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A method for operating a reducing agent delivery unit having a tank, a feed line running from the tank to an addition point, a return line branching off from the feed line and a valve to be activated with an electrical current for closing off the return line, includes initially applying an activation current to the valve for a first time interval. Subsequently, a holding current is applied to the valve when the first time interval has elapsed. Then, an operating variable of the delivery unit is determined and at least the activation current, the holding current and/or the first time interval are adapted as a function of the determined operating variable. A motor vehicle having a delivery unit is also provided. | 01-31-2013 |
| 20130025269 | DEVICE FOR PROVIDING A LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing liquid reducing agent includes a tank with an interior space and a vessel disposed at least partially in the interior space of the tank. The vessel is at least partially surrounded on the outside by a filter having a filter surface and a filter depth. A delivery unit disposed in the vessel is configured to deliver reducing agent from the tank, through the filter and to an extraction point for reducing agent. A motor vehicle having the device is also provided. | 01-31-2013 |
| 20130036726 | DEVICE FOR STORAGE OF AN OPERATING FLUID FOR A MOTOR VEHICLE, METHOD FOR MOUNTING THE DEVICE, METHOD FOR MONITORING THE DEVICE AND MOTOR VEHICLE - A device for storing or supplying an operating fluid includes a tank with an interior space and a protrusion which protrudes into the interior space and has a circumferential surface. At least one electrode for determining a filling level is disposed radially, running around the circumferential surface. Methods for mounting such a device and for monitoring a reserve filling level as well as a motor vehicle are also provided. | 02-14-2013 |
| 20130074483 | MIXING AND/OR EVAPORATING DEVICE - A mixing and/or evaporating device ( | 03-28-2013 |
| 20130081379 | EXHAUST PIPE INJECTION CONTROL DEVICE - An exhaust pipe injection control device for controlling an appropriate fuel injection amount regardless of engine rotation speed. The exhaust pipe injection control device includes: a target injection amount setting unit which sets, according to an engine rotation speed and an exhaust gas flow rate, a target injection amount that is injected in a single injection from an exhaust pipe injector; a base pulse width (“BPW”) map in which a fuel injection time of the exhaust pipe injector is set so that, with respect to the target injection amount and an exhaust pipe injection fuel pressure, fuel in the target injection amount is injected; and an exhaust pipe injection executing unit which performs injection from the exhaust pipe injector by referring to the BPW map based on the target injection amount and the exhaust pipe injection fuel pressure. | 04-04-2013 |
| 20130081380 | SYSTEM FOR INJECTING FUEL INTO EXHAUST PIPE - In a system for injecting fuel into an exhaust pipe, an exhaust pipe is connected to an engine via an exhaust adaptor and the fuel is injected directly into the exhaust pipe through a fuel injection valve provided in the exhaust adaptor. A front end of the fuel injection valve is provided in an inner wall of an exhaust path located inside the exhaust adaptor. The inner wall provided with the front end of the fuel injection valve protrudes from the exhaust path of the exhaust adaptor in a direction in which the diameter of the inner wall expands. A coolant passage for cooling the periphery of the front end of the fuel injection valve is provided within the exhaust adaptor. | 04-04-2013 |
| 20130152558 | ARRANGEMENT FOR INTRODUCING A LIQUID MEDIUM INTO EXHAUST GASES FROM A COMBUSTION ENGINE - Arrangement for introducing a liquid medium into exhaust gases from a combustion engine: an injector for injecting the liquid medium into an injection chamber ( | 06-20-2013 |
| 20130205758 | MIXING DEVICE - A mixing device includes: a cylindrical portion having a blade provided inside thereof for mixing exhaust gas that flows inside of an exhaust pipe of an internal combustion engine, with an additive sprayed into the exhaust pipe by an adding valve; a flange having an insertion hole, into which the cylindrical portion is inserted, and extending outward in a radial direction of the cylindrical portion from an outer peripheral surface of the cylindrical portion; and a plurality of supporting portions that are provided on the flange and that support the cylindrical portion, wherein each of the supporting portions includes an extending piece that extends in a circumferential direction of the cylindrical portion from a base end portion connected to the flange. | 08-15-2013 |
| 20130340417 | EXHAUST SYSTEM FOR AN AGRICULTURAL VEHICLE - An exhaust system for an agricultural vehicle is provided that includes a mixer configured to receive a spray of diesel exhaust fluid along a longitudinal axis of the mixer and an exhaust flow along a direction cross-wise to the longitudinal axis of the mixer. Additionally, the mixer is configured to mix the diesel exhaust fluid with the exhaust gas. Furthermore, the mixer is configured to discharge the exhaust gas along the longitudinal axis of the mixer. | 12-26-2013 |
| 20140157764 | Auxiliary Power and Emission-Control System Using Vented Gaseous Fuel Recovery and Method - A system includes a main engine operating on gaseous fuel from a tank. An auxiliary engine operates using gaseous fuel vented from the tank. A first exhaust passage receives a first stream of exhaust gas from the main engine. A second exhaust passage receives exhaust gas from the auxiliary engine, which passes through an ammonia-producing catalyst. A third exhaust passage is fluidly connected to the first and second exhaust passages and routes exhaust gas through a NOx reducing catalyst. The system operates such that a mass flow of ammonia generated by the ammonia-producing catalyst substantially matches a total mass flow of NOx gas in the third exhaust passage that is treated within the ammonia-producing catalyst. | 06-12-2014 |
| 20140238004 | COMBUSTION ENGINE PERFORMANCE-ENHANCING PROCEDURE - The invention uses a car's speed to gather ambient air in an air accumulator to create a fast-moving flow of that air and injecting that air to the exhaust piping in a direction to assist exhaust motion away from the engine. | 08-28-2014 |
| 20150059323 | FEED TUBE RESTRICTION FOR ON BOARD DIAGNOSTIC COMPLIANCE IN SECONDARY AIR INJECTION APPLICATIONS ON V-ENGINES - A flow restrictor for a secondary air injection system for an internal combustion engine. The flow restrictor includes a main body configured to be located between the intake end and a first injecting end of the supply conduit of the secondary air injection system. The main body defines a restricting orifice configured to reduce propagation of pressure fluctuations between the first injecting end a second injecting end. The main body includes a first connecting portion configured to connect to the supply conduit proximal to the intake end and a second connecting portion configured to connect to the supply conduit proximal to the first injecting end. | 03-05-2015 |
| 20150101320 | GAS RELEASE APPARATUS FOR CONSTRUCTION MACHINE - Provided is an apparatus which is capable of excellently mixing exhaust gas discharged from an engine with exhaust air to thereby improve lowering of temperature of the exhaust gas and suppression of noise. The apparatus comprises: a duct provided beneath an engine and having an upper edge surrounding an exhaust air inlet; an exhaust-gas pipe having an intra-duct portion extend inside the duct in a direction approximately perpendicular to a flow direction of the exhaust air; and an exhaust-gas-pipe cover provided just above the intra-duct portion to protect the intra-duct portion from oil which can drop down from above. | 04-16-2015 |
| 20150128577 | IGNITION CONTROL DEVICE FOR ENGINE - An ignition control device for an engine provided with ignition plugs for each cylinder. The ignition control device includes a sensor that detects a signal that determines whether the engine is in an idling state or not, and an ignition control unit that determines whether the engine is in the idling state on the basis of a signal from the sensor and controls the ignition plugs to be simultaneously ignited if the engine is in the idling state, and controls part of the ignition plugs to be ignited if the engine is in a state other than the idling state. | 05-14-2015 |
| 20160053660 | MIXER FOR SHORT MIXING LENGTHS - A mixer for an exhaust gas treatment system includes a support body that defines a mixing chamber. A plurality of first blades is arranged in a row, and is disposed along a transverse axis. Each of the first blades extends from an upstream edge, toward a first lateral edge surface of the mixing chamber, to a downstream edge, at a first row angle relative to the transverse axis. A plurality of second blades is arranged in a row, and is disposed along the transverse axis. Each of the second blades extends from an upstream edge, toward a second lateral edge surface of the mixing chamber, to a downstream edge, at a second row angle relative to the transverse axis. The first row angle is less than the second row angle. The row of the first blades is axially spaced from the row of the second blades. | 02-25-2016 |
| 20160376928 | SEGMENTED MULTI-LOBE MIXER - A multi-lobe exhaust mixer has an annular body composed of a plurality of circumferentially adjacent lobe segments. The lobe segments may be made of a ceramic matrix composite material to reduce the weight of the mixer and ensure proper behavior when exposed to high thermal gradients. Each lobe segment may have partial lobes at circumferentially opposed ends thereof and at least one complete lobe therebetween. The partial lobes of the circumferentially adjacent lobe segments combining to conjointly form complete lobes at the junction between the circumferentially adjacent lobe segments. The partial lobes may be nested into each other to dampen vibrations. | 12-29-2016 |
| 060319000 | Exhaust aspirates external fluid | 7 |
| 20090013675 | Flow diffuser for exhaust pipe - A flow diffuser for vehicles of the type having an engine and an exhaust pipe generally includes a substantially tubular body having an outer surface and a first end configured for attachment to an exhaust pipe. The flow diffuser further includes a diffusion portion including at least one channel having a root end located near the outer surface, an exit port, and a channel axis extending between the root end and the exit port, the channel increasing in flow area along the channel axis to reduce exhaust gas velocity. | 01-15-2009 |
| 20090113882 | Aspirator Support Structure - An aspirator includes converging and diverging cones, and singular support tube structure concentrically surrounding and mounting both the converging cone and the diverging cone and maintaining predetermined axial spacing and alignment of the cones in a cost-effective manufacturing assembly. | 05-07-2009 |
| 20120124980 | COMBINED INTAKE ASPIRATOR VENTURI TUBE AND WATER TRAP IN VERTICAL EXHAUST OUTLET STACK - An integral water trap and venturi tube element for use in an exhaust stack on a vehicle, the exhaust stack being generally vertically oriented and having a catalyst element or other moisture-sensitive emission control component disposed below the water trap, the venturi tube having an aspirator tube disposed therein to provide a low pressure aspiration source for the vehicle, wherein the venturi tube is so disposed in the exhaust stack to also function as the water trap and allows capture and diversion of water entering the exhaust stack from above. | 05-24-2012 |
| 20130152559 | TAILPIPE COLLAR - An exhaust system for a vehicle may include a tailpipe and a collar. The tailpipe may be adapted to receive exhaust gas from an internal combustion engine and may include an outlet. The collar may include an inner surface, an outer surface, an air-inlet, and an air-outlet. The inner surface may be radially spaced apart from the tailpipe and may at least partially surround the outlet of the tailpipe. The inner and outer surfaces may be shaped to form a profile that causes a first air-flow to accelerate upon flowing between the inner surface and the tailpipe to a first velocity that is faster than a second velocity of a second air-flow. The second air-flow may be flowing adjacent the outer surface and radially outward relative to the outer surface. | 06-20-2013 |
| 20130167516 | ARRANGEMENT FOR INTRODUCING A LIQUID MEDIUM INTO EXHAUST GASES FROM A COMBUSTION ENGINE - Arrangement for introducing a liquid medium into exhaust gases from a combustion engine, comprising a mixing duct, a first flow guide for creating a first exhaust vortex in the mixing duct such that the exhaust gases in this first exhaust vortex rotate in a first direction of rotation during their movement downstream in the mixing duct, an injector for injecting the liquid medium in the form of a finely divided spray into exhaust gases which are led into the liquid medium in an exhaust flow at the centre of the first vortex, and a second flow guide for creating a second exhaust vortex in the mixing duct concentrically with and externally about the first vortex, such that the exhaust gases in this second vortex rotate in a second direction of rotation, which is opposite to said first direction of rotation, during their movement downstream in the mixing duct. | 07-04-2013 |
| 20130205759 | EXHAUST ASSEMBLY - An exhaust assembly includes an exhaust pipe, a first venturi member at the inlet end of the pipe and a second venturi member at the outlet end of the pipe. A diffuser/mixer is mounted at the outlet end of the exhaust pipe. A shield pipe surrounds a portion of the exhaust pipe. A shield member is mounted to the shield pipe and covers a portion of the first venturi member. The first and second venturi members operate to combine ambient air with exhaust gases. | 08-15-2013 |
| 20140069087 | MIXING DEVICE IN AN EXHAUST GAS PIPE - In an exhaust gas pipe, a first fluid flows in a flow direction in the pipe, and a second fluid is injected inside the pipe by a nozzle, from an injection inlet arranged in the pipe wall, according to an injection direction. A mixing device fastened inside the pipe upstream from the injection inlet creates turbulence that helps the mixing of the fluids. The mixing device has a first portion located on the injection inlet side of the pipe and a second portion located opposite the injection inlet side of the pipe, the portions being designed so that the fluid velocity is higher downstream from the mixing device second portion than downstream from the mixing device first portion. An aqueous solution of urea can be injected inside an exhaust pipe of a diesel engine. | 03-13-2014 |
