Abstract: There is provided a method, performed by a network unit, for enabling management of random access attempts in a wireless communication system by a plurality of devices having wireless communication capabilities. The method comprises obtaining (S1) information representing the load of random access attempts, and determining (S2), based on the information representing the load of random access attempts, control information for controlling a distribution of the random access attempts over time.

Abstract: An exhaust after treatment system for a vehicle includes an exhaust outlet pipe, having a first end that is connectable to a vehicle engine, for receiving exhaust gases from said vehicle engine, and having an outlet opening at a second end, arranged to eject the outlet gases, a catalytic converter, connected to the exhaust outlet pipe; and an electric heater element which is in heat conducting contact with the catalytic converter and adapted for pre-heating the catalytic converter. The heater element is positioned downstream of the catalytic converter with respect to the first end. Upon the vehicle being started, the heater element is switched on and gases are flowed from the second end, in the direction of the first end of the exhaust outlet pipe, through the catalytic converter for a pre-set period of time prior to passing exhaust gases from the engine towards the outlet opening at the second end.

Abstract: An exhaust after treatment system for a vehicle includes an exhaust outlet pipe, having a first end that is connectable to a vehicle engine, for receiving exhaust gases from said vehicle engine, and having an outlet opening at a second end, arranged to eject the outlet gases, a catalytic converter, connected to the exhaust outlet pipe; and an electric heater element which is in heat conducting contact with the catalytic converter and adapted for pre-heating the catalytic converter. The heater element is positioned downstream of the catalytic converter with respect to the first end. Upon the vehicle being started, the heater element is switched on and gases are flowed from the second end, in the direction of the first end of the exhaust outlet pipe, through the catalytic converter for a pre-set period of time prior to passing exhaust gases from the engine towards the outlet opening at the second end.

Abstract: The invention relates to an exhaust gas aftertreatment device for an internal combustion engine, where the device comprises: an exhaust duct allowing a through-flow of exhaust gas; a catalytic NOx converter arranged in the exhaust duct; and a fluid inlet arranged to introduce a liquid reductant into or onto a structure in the exhaust duct upstream the catalytic NOx converter. The invention is characterized in that the structure is a sorption structure having pores configured to retain the liquid reductant in liquid form until it evaporates. The invention also relates to a vehicle provided with such a device.

Abstract: The disclosure relates to an exhaust gas aftertreatment device for purification of exhaust gas emissions. The exhaust gas aftertreatment device is arranged in an exhaust gas passage subsequently of an internal combustion engine and includes an encapsulating portion, a first catalytic substrate and a second catalytic substrate. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.

Abstract: The disclosure relates to an exhaust gas aftertreatment device for purification of exhaust gas emissions. The exhaust gas aftertreatment device is arranged in an exhaust gas passage subsequently of an internal combustion engine and includes an encapsulating portion, a first catalytic substrate and a second catalytic substrate. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.

Abstract: The disclosure relates to an exhaust gas aftertreatment device for purification of exhaust gas emissions. The exhaust gas aftertreatment device is arranged in an exhaust gas passage subsequently of an internal combustion engine and includes an encapsulating portion, a first catalytic substrate and a second catalytic substrate. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.

Abstract: An apparatus and method for authenticating digital data is described. The method comprises generating the digital data with a radio device that operates on a narrowband channel and associating metadata to the digital data, the metadata being unique to the digital data. Further, a predefined function is applied to both the digital data and the associated metadata to generate an authentication key, and the authentication key is transmitted for storage at a remote server via the narrowband channel. The digital data is then authenticated using the stored authentication key.

Abstract: An exhaust gas aftertreatment device for an internal combustion engine comprises a housing, first and second catalytic substrates arranged inside the housing such that the first catalytic substrate is arranged upstream of the second catalytic substrate, and a reductant injector arranged in between the first and second catalytic substrates. Further, the first and second catalytic substrates are arranged such that a fluid flow direction through the exhaust gas aftertreatment device is angled. A flow redirecting wall is arranged downstream of the first catalytic substrate such that the fluid flow between the first and second catalytic substrates at least partially passes an outer circumference of the first catalytic substrate before reaching the second catalytic substrate. The redirecting wall is inclined to an outlet surface of the first catalytic substrate and the reductant injector is arranged at the redirecting wall at a position distant from the outlet surface.

Abstract: The invention relates to an exhaust gas aftertreatment device for an internal combustion engine, where the device comprises: an exhaust duct allowing a through-flow of exhaust gas; a catalytic NOx converter arranged in the exhaust duct; and a fluid inlet arranged to introduce a liquid reductant into or onto a structure in the exhaust duct upstream the catalytic NOx converter. The invention is characterized in that the structure is a sorption structure having pores configured to retain the liquid reductant in liquid form until it evaporates. The invention also relates to a vehicle provided with such a device.

Abstract: An apparatus and method for authenticating digital data is described. The method comprises generating the digital data with a radio device that operates on a narrowband channel and associating metadata to the digital data, the metadata being unique to the digital data. Further, a predefined function is applied to both the digital data and the associated metadata to generate an authentication key, and the authentication key is transmitted for storage at a remote server via the narrowband channel. The digital data is then authenticated using the stored authentication key.

Abstract: A compact exhaust gas aftertreatment device for an internal combustion engine comprises a catalytic converter, wherein the catalytic converter comprises an encapsulating member, a pipe member, an exhaust gas guiding means and two catalytic converter substrates. The exhaust gas aftertreatment device provides very good exhaust gas mixing properties. Additionally, the exhaust gas guiding means is configured to withstand thermal stress due to exposure to hot exhaust gas emissions.

Abstract: The disclosure relates to an exhaust gas aftertreatment device for purification of exhaust gas emissions. The exhaust gas aftertreatment device is arranged in an exhaust gas passage subsequently of an internal combustion engine and includes an encapsulating portion, a first catalytic substrate and a second catalytic substrate. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.

Abstract: An exhaust gas aftertreatment device for an internal combustion engine comprises a housing, first and second catalytic substrates arranged inside the housing such that the first catalytic substrate is arranged upstream of the second catalytic substrate, and a reductant injector arranged in between the first and second catalytic substrates. Further, the first and second catalytic substrates are arranged such that a fluid flow direction through the exhaust gas aftertreatment device is angled. A flow redirecting wall is arranged downstream of the first catalytic substrate such that the fluid flow between the first and second catalytic substrates at least partially passes an outer circumference of the first catalytic substrate before reaching the second catalytic substrate. The redirecting wall is inclined to an outlet surface of the first catalytic substrate and the reductant injector is arranged at the redirecting wall at a position distant from the outlet surface.

Abstract: A compact exhaust gas aftertreatment device for an internal combustion engine comprises a catalytic converter, wherein the catalytic converter comprises an encapsulating member, a pipe member, an exhaust gas guiding means and two catalytic converter substrates. The exhaust gas aftertreatment device provides very good exhaust gas mixing properties. Additionally, the exhaust gas guiding means is configured to withstand thermal stress due to exposure to hot exhaust gas emissions.

Abstract: An exhaust gas treatment arrangement and a method thereof is contemplated for treating exhaust gases flowing along a flow path in an exhaust pipe system. The arrangement comprises a supply element being in communication with a source comprising an ammonia gas. The supply element comprises at least two discharge apertures being adapted to communicate with the flow path such that the ammonia gas may be dispersible from the discharge apertures into the exhaust gases in the flow path in at least two discharge directions.

Abstract: Arrangement at a gas turbine installation for the generating of electricity, where inlet air filter housing, bleed air outlet and inlet for the vent air to the turbine housing are integrated into two units, an upper filter housing and a lower intermediate housing connected to the turbine housing. The lower intermediate housing includes a silencer for the inlet air that at the same time connects the filter housing with the turbine inlet. The compressor bleed air system is divided into two parts, one in the intermediate housing and one extending through the filter housing. The vent air for the turbine housing is drawn in through an end wall of the filter housing and down into the turbine housing through separate spaces surrounding the compressor bleed ducting in the filter and intermediate housings.

Abstract: A locating unit intended to be applied to an object and including a transmitter and a receiver of identifying radio frequency search signals, further comprising means by which it can function as a searcher, including a device for selecting objects to be located and for activating a search signal, also further comprising means by which it can function as an indicator, including a device for emitting an indicating signal at the reception of a search signal emitted by a second locating unit, cooperating with said first locating unit.

Abstract: Arrangement at a gas turbine installation for the generating of electricity, where inlet air filter housing (4), bleed air outlet (9) and inlet (5) for the vent air to the turbine housing (2) are integrated into two units, an upper filter housing (4) and a lower intermediate housing (3) connected to the turbine housing (2). The lower intermediate housing (3) includes a silencer (14) for the inlet air that at the same time connects the filter housing with the turbine inlet (11). The compressor bleed air system is divided into two parts, one (18) in the intermediate housing (3) and one extending through the filter housing. The vent air for the turbine housing is drawn in through an end wall of the filter housing and down into the turbine housing through separate spaces (20, 17) surrounding the compressor bleed ducting (9, 18) in the filter and intermediate housings.