An exhaust gas treatment device for arranging in an exhaust gas section of a motor vehicle that includes a heating disk which is assigned to an exhaust gas aftertreatment component. The heating disk is configured by way of a flat heating element and a holder which is coupled to the former. The holder extends over the cross-sectional area of the heating element, and the holder itself is of disk-shaped configuration. The inner face of the heating disk is configured by way of arcuate spokes which are coupled irregularly to one another.

A DEF system for use with an internal combustion engine, the DEF system including a primary flowpath extending between a first inlet and a first outlet, where the first inlet is open to and configured to receive exhaust gasses from the internal combustion engine. The DEF system also includes a secondary flowpath including a second inlet open to the primary flowpath downstream of the first inlet and upstream of the first outlet, a second outlet open to the primary flowpath downstream of the secondary inlet and upstream of the first outlet, and an injector assembly configured to inject DEF into the secondary flowpath.

A DEF system for use with an internal combustion engine, the DEF system including a primary flowpath extending between a first inlet and a first outlet, where the first inlet is open to and configured to receive exhaust gasses from the internal combustion engine. The DEF system also includes a secondary flowpath including a second inlet open to the primary flowpath downstream of the first inlet and upstream of the first outlet, a second outlet open to the primary flowpath downstream of the secondary inlet and upstream of the first outlet, and an injector assembly configured to inject DEF into the secondary flowpath.

A fluid tank thaw system that includes a fluid tank that receives a first fluid. A heating element within the fluid tank that heats the first fluid. A magnetic stir system that stirs the first fluid within the fluid tank to increase a thaw rate of the first fluid. The magnetic stir system includes a magnetic stirrer within the fluid tank. The magnetic stirrer rotates within the fluid tank to agitate the first fluid. An electric coil changes polarity to rotate the magnetic stirrer.

An exhaust system that includes a catalytic converter, selective catalytic reduction system, a muffler and, for certain applications, a diesel particulate filter that each include at least one filter that has an electric heating element, a metallic coating and a plurality of metal rods extending therethrough. The combination of elements are configured to heat the internal housings of the exhaust system and disrupt the direction of flow of exhaust gases which contain harmful toxic gases and pollutants and aid in removing and/or reducing said toxic gases and pollutants.

Various embodiments include a catalyst measuring system for determining the aging of an SCR catalytic converter, the system comprising: a control device with a processor; an SCR catalytic converter for treating the exhaust gases of a vehicle; a high-frequency sensor for measuring a level of ammonia loading of the SCR catalytic converter; and an ammonia dosing system for injecting ammonia into an exhaust system of the vehicle. The control device instructs the ammonia dosing system to inject ammonia selectively into the exhaust system. The control device compares data measured by the high-frequency sensor with a predefined threshold value to determine the aging of the SCR catalytic converter.

A clogging determination device includes a first antenna disposed at one of a side of a first end and a side of a second end of a filter disposed internally of a case, a second antenna disposed at the other of the side of the first end and the side of the second end of the filter, a multi-tone signal generator that has an output terminal coupled to the first antenna, outputs from the output terminal a multi-tone signal obtained by compositing a plurality of signals having different frequencies, and moves a position of an envelope of the multi-tone signal emitted to the filter from the first antenna, a detector that is coupled to the second antenna, and detects an intensity of the multi-tone signal received by the second antenna, and a determinator that determines a degree of clogging of the filter based on an intensity of the multi-tone signal.

An internal combustion engine is provided with an engine body, a housing provided in an exhaust passage of the engine body, a filter held inside the housing and trapping PM in the exhaust, and a microwave device for microwaving the inside of the housing. A control device for the internal combustion engine is configured to control the microwave device when microwaving the inside of the housing to heat the PM so that an amplitude of the microwaves becomes smaller when the amount of PM deposition at the filter is large compared to when it is small.

An exhaust gas control apparatus for an internal combustion engine includes an electromagnetic wave output unit, an acquisition unit that acquires collection amounts of PM and substances other than PM based on a rotational speed and a fuel injection amount of the internal combustion engine, and a control unit that controls an output intensity of the electromagnetic wave output unit. The control unit causes electromagnetic waves to be output with a first output intensity when the collection amount of the substances other than PM becomes equal to or smaller than a predetermined threshold, and causes electromagnetic waves to be output with a second output intensity that is lower than the first output intensity when the collection amount of the substances other than PM becomes larger than the predetermined threshold, when the collection amount of PM has exceeded a permissible value of the collection amount of PM in the filter.

A pillar shaped honeycomb structure, including: a porous partition wall that define a plurality of cells, the plurality of cells forming flow paths for a fluid, the plurality of cells extending from an inflow end face to an outflow end face; and an outer peripheral wall located at the outermost circumference. The plurality of cells include: a plurality of first cells; and a plurality of second cells having a lower cross-sectional area than that of the plurality of first cells. An interior of each of the second cells is filled with a material comprising a magnetic substance. Each of the second cells are arranged adjacent to at least one of the first cells.