A turbine connector (40) in an engine exhaust manifold (30) includes a turbine foot (54) attached to incoming exhaust conduits (42,46). The turbine foot (54) has an outer perimetric edge (72) defining a trapezoidal shape, and inner perimetric edges (86,90) forming exhaust outlets (88,92) from the incoming exhaust conduits (42,46). The inner perimetric edges (86,90) have varied perimetric curvatures largest in finite curvature size upon a web (94) extending between the exhaust outlets (88,92), and together forming an hourglass web profile in a turbine-mounting plane defined by the turbine foot (54).

An exhaust gas heating assembly for an exhaust gas system of a combustion engine includes a heating unit housing which accommodates a flow of exhaust gas. A plurality of heating units are disposed in the heating unit housing and are elongate in the direction of a heating unit longitudinal axis (H). Each heating unit has first and second heating unit longitudinal end regions. The heating units with the first heating unit longitudinal end regions and the second heating unit longitudinal end regions are supported in relation to the heating unit housing via a support structure. At least one heating unit by way of the first heating unit longitudinal end region thereof or/and the second heating unit longitudinal end region thereof is supported on the support structure so as to be movable in the direction of the longitudinal axis (H).

A turbine connector in an engine exhaust manifold includes a turbine foot attached to incoming exhaust conduits. The turbine foot has an outer perimetric edge defining a trapezoidal shape, and inner perimetric edges forming exhaust outlets from the incoming exhaust conduits. The inner perimetric edges have varied perimetric curvatures largest in finite curvature size upon a web extending between the exhaust outlets, and together forming an hourglass web profile in a turbine-mounting plane defined by the turbine foot.

An exhaust manifold heat dissipation cover coupling device for thermal stress and vibration deflection is proposed. The device has a function of preventing wear of a heat dissipation cover to couple an exhaust manifold heat dissipation cover, the device being able to improve the durability of various parts including a heat dissipation cover by attenuating multi-directional vibration that is transmitted from an exhaust manifold when the heat dissipation cover is installed outside the exhaust manifold, being able to prevent damage to parts due to thermal stress by flexibly coping with thermal deformation such as thermal contraction or thermal expansion even if the thermal deformation is generated by high-temperature heat transmitted from the exhaust manifold, and being able to prevent frictional damage of the heat dissipation cover due to friction by a component that slides to attenuate vibration.

An electrically heated catalytic device is provided. The electrically heated catalytic device includes a cylindrical catalyst carrier. Two electrode units are attached to a side surface of the catalyst carrier. The side surface of the catalyst carrier includes slits each extending in an axial direction of the catalyst carrier. Each slit is filled with a filler that has a lower Young's modulus than the catalyst carrier. An average Young's modulus is a value obtained by averaging the Young's modulus of the filler at different portions of the slit over an entire length of the slit in the axial direction. The slits include a first slit and a second slit. The average Young's modulus of the first slit is a first value. The average Young's modulus of the second slit is a second value that is smaller than the first value.

A vehicle includes an internal combustion engine, an electrically-heated catalyst device provided in an exhaust passage thereof, and an electronic control unit configured to control base material electric power supply supplied to a conductive base material. The catalyst device includes the conductive base material that generates heat upon energization, and a catalyst heated through the conductive base material. The electronic control unit determines whether the conductive base material is in a stagnant period, where temperature of the conductive base material partially stagnates in a prescribed temperature zone, the stagnant period occurring when water is present inside the catalyst device in a process of increase in temperature of the conductive base material. When determining that the conductive base material is in the stagnant period, the electronic control unit controls the base material electric power supply to be lower than when determining otherwise.

A bellows having tweezers-shaped corrugated portions for increasing resistance and restoring force against torsion includes: a first flat part having a flat cylindrical shape; a second flat part having a flat cylindrical shape and disposed opposite to the first flat part; and a plurality of corrugated portions, each having a tweezers shape and disposed between the first flat part and the second flat part, wherein each of the plurality of corrugated portions is sequentially connected to each other, so as to increase resistance and restoring force against torsion.

The disclosure relates to a retaining flange for a metering valve for an exhaust gas cleaning module of an exhaust gas system of a combustion engine, wherein the retaining flange has a base plate having a central recess with a central axis for receiving the metering valve, wherein the base plate has a mounting surface via which the retaining flange can be positioned on the exhaust gas cleaning module in the region of a supply opening of the exhaust gas cleaning module, wherein a valve surface is provided opposite the mounting surface against which the metering valve can be positioned and wherein at least one retaining arm having a retaining eyelet with a central axis and for a retaining means is provided, on which the metering valve can be at least indirectly fixed, such that the at least one retaining arm has a root connecting to the base plate, from which the retaining arm extends in the radial direction relative to the central axis and in the circumferential direction about the central axis, wherein the root and the retaining eyelet are arranged offset to one another in the circumferential direction.

A catalytic device that can increase the durability of a catalyst support with holes is provided. A flat plate (52) and a corrugated plate (54) have a plurality of holes (64), a joint area between the flat plate (52) and the corrugated plate (54) is provided in a first upstream area (70) including one end (42a) of a catalyst support (42), and a joint area between the catalyst support (42) and an outer cylinder (44) is provided in a second upstream area (72) that includes the first upstream area (70) and is wider than the first upstream area (70) in the direction of an axis.

An exhaust manifold heat dissipation cover coupling device for thermal stress and vibration deflection is proposed. The device has a function of preventing wear of a heat dissipation cover to couple an exhaust manifold heat dissipation cover, the device being able to improve the durability of various parts including a heat dissipation cover by attenuating multi-directional vibration that is transmitted from an exhaust manifold when the heat dissipation cover is installed outside the exhaust manifold, being able to prevent damage to parts due to thermal stress by flexibly coping with thermal deformation such as thermal contraction or thermal expansion even if the thermal deformation is generated by high-temperature heat transmitted from the exhaust manifold, and being able to prevent frictional damage of the heat dissipation cover due to friction by a component that slides to attenuate vibration.