Volvo Truck Corporation

Volvo Lastvagnar Ab

Eberspächer Exhaust Technology Gmbh & Co. Kg

Renault Trucks

Gert-Ove Wahlström

Marcus Werni

Rainer Lehnen

Martin Kandels

Ervin Omerspahic

Fredrik Westergren

Tobias Stålfors

Ladislaf Verbo

Albin Hedman

Christian Dansund

Tobias STÅLFORS

An Exhaust Aftertreatment System (EATS) arrangement includes a housing, a pre-SCR insert, a PF insert, a first main SCR insert and an exhaust pipe. The pre-SCR insert, the PF insert and the first main SCR insert are arranged in the housing and are each removably mounted in the housing such that each insert may be removed separately from the housing, the pre-SCR insert being mounted along a first geometric axis, the PF insert being mounted along a second geometric axis and the first main SCR insert is mounted along a third geometric axis, the first geometric axis being parallel with the second geometric axis and the third geometric axis is parallel with the first and the second geometric axes or coincides with either one of the first and the second geometric axis and is parallel with the other one of the first and the second geometric axis.

Exhaust aftertreatment system (EATS)

Exhaust silencer

An exhaust aftertreatment unit for cleaning exhaust gases includes an emission reducing module being a diesel particulate filter, DPF, and/or a diesel oxidation catalyst, DOC, a selective catalyst reduction, SCR, catalyst, an electrical heating element arranged upstream of the emission reducing module, a casing housing at least the emission reducing module and the electrical heating element, and a service lid removably arranged to cover a service opening of the casing through which the emission reducing module may be accessed. The electrical heating element is removably arranged relative the casing and is arranged accessible upon removal of the service lid and the emission reducing module.

Exhaust aftertreatment unit for cleaning exhaust gases

An exhaust aftertreatment arrangement for cleaning exhaust gases includes a fluid channel for providing a fluid pathway for the exhaust gases, a selective catalyst reduction, SCR, catalyst, arranged in or downstream the fluid channel, a heating arrangement for heating the exhaust gases, the heating arrangement being arranged upstream of the SCR catalyst and comprising an electrical heating element, a first fluid pathway for guiding the exhaust gases to the electrical heating element, and a second fluid pathway for guiding the exhaust gases to bypass the electrical heating element, wherein the heating arrangement is removably arranged relative the fluid channel.

Exhaust aftertreatment arrangement for cleaning exhaust gases

The invention relates to a method for replacing an exhaust aftertreatment component of an exhaust aftertreatment system in a vehicle or vessel. The exhaust aftertreatment system is delimited by an outer casing and comprises a first sleeve, which extends in an axial direction and contains a first exhaust aftertreatment component mounted directly in the first sleeve. The method comprises the steps of:

Method for replacing an exhaust aftertreatment component

An exhaust aftertreatment arrangement for converting NOx emissions. The exhaust aftertreatment arrangement includes a fluid channel for providing a fluid pathway for the exhaust gases, a selective catalyst reduction, SCR, catalyst, arranged in or downstream the fluid channel, an injector configured to inject a liquid reductant for providing ammonia to the SCR catalyst, the injector being arranged upstream of the SCR catalyst, a heating arrangement for heating the injected reductant, the heating arrangement being arranged upstream of the SCR catalyst and comprising an electrical heating element and at least one evaporation member configured to be heated by the heating element. The evaporation member is arranged in the fluid channel such that at least a portion of the injected liquid reductant comes into contact with the evaporation member when injected.

Exhaust aftertreatment arrangement for converting NOx emissions

An exhaust aftertreatment unit for cleaning exhaust gases. The exhaust aftertreatment unit includes an emission reducing module being a diesel particulate filter, DPF, and/or a diesel oxidation catalyst, DOC, a selective catalyst reduction, SCR, catalyst, an electrical heating element arranged upstream of the SCR catalyst, a casing housing at least the emission reducing module, and a service lid removably arranged to cover a service opening of the casing through which the emission reducing module may be accessed. The electrical heating element is removably arranged relative the casing and is arranged accessible upon removal of the service lid.

The invention relates to a leakage treatment member () and an exhaust aftertreatment unit () configured to be sealingly arranged in a fluid passage () of an exhaust aftertreatment system for treating exhaust from an internal combustion engine, said exhaust aftertreatment unit () comprising an exhaust aftertreatment element () confined by an outer wall () of said exhaust aftertreatment unit, said leakage treatment member being configured to be arranged between:&#x2014;an inner perimeter () of the fluid passage of the exhaust aftertreatment system, and&#x2014;the outer wall of the exhaust aftertreatment unit, the leakage treatment member comprising an exhaust aftertreatment component for aftertreatment of any leakage of exhaust gases past said aftertreatment unit in said fluid passage.

Exhaust aftertreatment unit for an exhaust system of an internal combustion engine

The invention relates to an exhaust aftertreatment arrangement () for an exhaust system of an internal combustion engine, said exhaust aftertreatment arrangement () comprising a fluid passage () for exhaust gases from said exhaust system, said fluid passage () defining an inner perimeter () and an exhaust aftertreatment unit () comprising an exhaust aftertreatment element () confined by an outer wall () defining an outer periphery () of the exhaust aftertreatment unit (), the exhaust aftertreatment unit () being sealingly arranged in said fluid passage () for enabling flow of said exhaust gases through said exhaust aftertreatment element (). A leakage treatment member () comprising an exhaust aftertreatment component is arranged between said inner perimeter () of the fluid passage () and said outer periphery () of said outer wall () of the exhaust aftertreatment unit (), for aftertreatment of any leakage of said flow of exhaust gases past said aftertreatment unit () in said fluid passage ().

Exhaust aftertreatment arrangement for an exhaust system of an internal combustion engine

The invention relates to an exhaust aftertreatment system () for a combustion engine (), comprising, an outer casing () comprising at least one exhaust gas inlet () and at least one exhaust gas outlet (), at least one catalyst (') being located in an inner volume () of the outer casing (), wherein the system () is configured such that during use of the system () exhaust gas flows from the at least one exhaust gas inlet () at an inlet velocity, through the at least one catalyst (&#x2032;) at a catalyst velocity, into the inner volume () outside the at least one catalyst (&#x2032;) and to the at least one exhaust gas outlet (), and further such that the exhaust gas flows in the inner volume () outside the at least one catalyst () through at least one cross sectional area (A) being defined and limited by at least a perimeter surface (&#x2032;) of the at least one catalyst (&#x2032;) and an inner surface () of the outer casing () or by at least two catalyst parameter surfaces (&#x2032;), wherein the at least one cross sectional area (A) is sized such that during use of the system () the exhaust gas flows through the at least one cross sectional area (A) at a first inner volume velocity being higher than the catalyst velocity, and wherein the system () further comprises at least one sensor () for measuring at least one parameter being related to the exhaust gas, said at least one sensor () being located in the inner volume () at a location where an exhaust gas flow velocity is higher than the catalyst velocity. The invention also relates to a vehicle () comprising such a system ().

Exhaust aftertreatment system for a combustion engine

A gas flow regulating device for cleaning a particulate filter is configured to be arranged in connection to the filter at a side thereof in a through-flow of a gas to be used for cleaning the filter. The device is a standalone unit configured to be removably installed in connection with a cleaning process, wherein the device includes a frame defining a gas flow passage and a gas flow regulating element arranged inside the frame, wherein the gas flow regulating element is provided with at least one opening for gas through-flow and a blocking part capable of blocking a portion of a gas through-flow area of the filter such as to force the gas to flow through the at least one opening, wherein the gas flow regulating element is movably arranged between at least two different positions, and wherein the at least one opening covers different portions of the gas through-flow area in the different positions. An arrangement for cleaning a particulate filter including such a device, and a method for cleaning a particulate filter using such a device are also provided.

Gas flow regulating for cleaning a particular filter

A device is provided for preventing theft of a first vehicle component which is releasably connected to a second vehicle component. The theft preventing device includes a cover member arranged for obstructing removal of the first component from the second component and a locking member, which is configured for locking the cover member or the second component in an operational position in which the cover member obstructs the removal of the first component from the second component.

Device for preventing theft of a first vehicle component, which is releasably connected to a second vehicle component

A method and an arrangement for cleaning a particulate filter in a vehicle provided with an internal combustion engine is provided. The particulate filter is mounted in an operative position inside an exhaust muffler under normal operation of the engine. The method involves performing a cleaning process including disassembling and removing the particulate filter from a first end of the muffler; reversing and reassembling the particulate filter a cleaning position at the first end of the muffler; starting and operating the engine by controlling the engine speed according to a predefined cycle until a predetermined condition is fulfilled; and stopping the engine and returning the particulate filter to its operative position inside the exhaust muffler.

Method and arrangement for cleaning a particle filter

An exhaust gas-treating device () for an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided with a housing (), which has a jacket () extending circumferentially on the side and at least one bottom (). The homogenization of the exhaust gas flow is improved with a mixing housing (), which is arranged in the interior space () of the housing () and which has a mixing chamber (). An inlet () of the mixing housing passes through the bottom () and communicates with the mixing chamber (). An outlet () of the mixing housing passes through the bottom () and communicates with the mixing chamber ().

Growing community of inventors

Askim, Sweden

Gert-Ove Wahlström