Methods and systems are provided for a coupling device. In one example, the coupling device may be formed of a composite material and positioned between an exhaust system and a vehicle chassis. The composite material may include aluminum particles dispersed in an elastomer matrix to reduce an overall thermal absorptivity of the composite material.

The invention relates to a thermoelectric module for thermoelectric current generation, in particular in an exhaust gas system of an internal combustion engine, with a base plate and a plurality of thermocouples each with two legs, the thermocouples being electrically connected in series and mounted on the base plate. The invention provides that the base plate consists of a metallic material. This enables a low-cost production, allows substantially larger formats and makes the thermoelectric module mechanically much less sensitive than a conventional base plate made of ceramic. Furthermore, the invention includes a corresponding production method.

A device for providing a liquid additive for exhaust-gas purification, having at least one duct for conducting the liquid additive, the duct having a duct wall which has a first stiffness. There is inserted into the duct an insert component (5) that extends at least in sections along the duct, wherein the insert component is composed of a solid material.

A device for providing a liquid additive, including at least one metallic insert, which is coated, at least in sections, with a plastic coating made of polyethylene (PE). At least one plastic structure made of a high-density polyethylene (HD-PE) or polypropylene (PP) is sprayed onto the plastic coating.

A feedthrough in a housing component that is subject to thermal loading for a functional assembly includes: an inner conductor; an outer conductor having a sleeve assigned to or formed on the outer conductor that retains or makes it possible to fasten the feedthrough to the housing component; and an electrically insulating component between the outer conductor and the inner conductor, the electrically insulating component retaining the inner conductor relative to the outer conductor in an electrically insulated fashion.

An exhaust silencer for a motor vehicle is provided. In one example, the silencer comprises a noise-reducing structure and a heat sink to transfer heat from exhaust gases to the exterior of the silencer, the heat sink comprising two regions of fins which define a plurality of flow channels through the heat sink, the flow channels directing the flow of exhaust through the silencer from an inlet passage to an outlet passage. In this way, a temperature of the exhaust is reduced, and the silencer and downstream components of an exhaust system may be constructed of materials of a lower thermal tolerance.

A method for producing a corrosion resistant metal substrate and corrosion resistant metal substrate provided thereby. The method involves forming a plated substrate including a metal substrate provided with a nickel layer or with a nickel and cobalt layer followed by electrodepositing a molybdenum oxide layer from an aqueous solution onto the plated substrate, which is subsequently subjected to an annealing step in a reducing atmosphere to reduce the molybdenum oxide in the molybdenum oxide layer to molybdenum metal in a reduction annealing step and to form a diffusion layer which contains nickel and molybdenum, and optionally cobalt.

A device includes a power source, at least one exhaust gas purification member having an upstream face and a downstream face, and a heating member placed in front of and at a distance from the upstream or downstream face. The heating member comprises a frame and a plurality of elongate heating elements surrounded by a peripheral part of the frame. Each heating element has first and second ends, with at least one of the first and second ends being electrically connected to the power source with the other end being connected to the frame. Each heating element is, between the first and second ends, connected only to at least one other of the heating elements. The heating elements are in contact with one another by respective points of contact, two points of contact of two different heating elements in contact with one another being at the same electric potential.

A muffler that uses baffles at a 45 relative to one another to create a helical configuration within the cylindrical housing allowing exhaust gases to pass more freely than the prior art mufflers, while maintaining superior noise reduction.

A device includes a power source, at least one exhaust gas purification member having an upstream face and a downstream face, and a heating member placed in front of and at a distance from the upstream or downstream face. The heating member comprises a frame and a plurality of elongate heating elements surrounded by a peripheral part of the frame. Each heating element has first and second ends, with at least one of the first and second ends being electrically connected to the power source with the other end being connected to the frame. Each heating element is, between the first and second ends, connected only to at least one other of the heating elements. The heating elements are in contact with one another by respective points of contact, two points of contact of two different heating elements in contact with one another being at the same electric potential.