Provided is an exhaust system for an engine in which a fastening force of a fastener hardly decreases. An exhaust system for an engine includes: an exhaust passage component of ferrous metal; and a fastener that fastens the exhaust passage component to other parts, the exhaust passage component including a pressure receiving surface that receives a fastening force of the fastener. The oxide film of triiron tetraoxide is formed on the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an outer surface other than the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an inner surface of the exhaust passage component.

The invention relates to a turbocharger flange (200). The flange (200) comprises a mounting face (210) for attaching a turbocharger (100) to a manifold (40), wherein the mounting face (210) comprises a guiding structure (220) for guiding the flange (200) to an operative position in relation to said manifold (40).

The invention relates to a turbocharger flange (200). The flange (200) comprises a mounting face (210) for attaching a turbocharger (100) to a manifold (40), wherein the mounting face (210) comprises a guiding structure (220) for guiding the flange (200) to an operative position in relation to said manifold (40).

A drive system for driving a motor vehicle is provided. The drive system includes a first turbocharger, a second turbocharger, and an internal combustion engine. The first turbocharger and the second turbocharger are, for the drive of the motor vehicle, operatively connected to the internal combustion engine. The first turbocharger and the second turbocharger are, in a height direction of a crankcase of the internal combustion engine, arranged one above the other in a defined corridor adjacent to the crankcase. The invention also provides a motor vehicle including the drive system.

A drive system for driving a motor vehicle is provided. The drive system includes a first turbocharger, a second turbocharger, and an internal combustion engine. The first turbocharger and the second turbocharger are, for the drive of the motor vehicle, operatively connected to the internal combustion engine. The first turbocharger and the second turbocharger are, in a height direction of a crankcase of the internal combustion engine, arranged one above the other in a defined corridor adjacent to the crankcase. The invention also provides a motor vehicle including the drive system.

An engine system includes an engine with a crankshaft. The crankshaft is rotatable about a crankshaft axis that is defined in a first plane. A turbocharger includes a turbine and a compressor. The turbine is configured to be driven by an exhaust gas flow from the engine and drive the compressor about a common turbocharger axis. An included angle defined between a projection of the common turbocharger axis onto the first plane and the crankshaft axis is an acute angle.

An engine system includes an engine with a crankshaft. The crankshaft is rotatable about a crankshaft axis that is defined in a first plane. A turbocharger includes a turbine and a compressor. The turbine is configured to be driven by an exhaust gas flow from the engine and drive the compressor about a common turbocharger axis. An included angle defined between a projection of the common turbocharger axis onto the first plane and the crankshaft axis is an acute angle.

A supercharger includes a main housing, a front cover coupled to the main housing and having an inner portion received within the main housing, a drive coupling assembly arranged between an input shaft and a rotor shaft, and a coupling sleeve disposed about the drive coupling.

A supercharger includes a main housing, a front cover coupled to the main housing and having an inner portion received within the main housing, a drive coupling assembly arranged between an input shaft and a rotor shaft, and a coupling sleeve disposed about the drive coupling.

An engine structure forming an adapter for connecting a turbocharger unit to a cylinder block of an internal combustion engine includes a set of attachment arrangements for fastening the turbocharger unit to the cylinder block via the engine structure such that the engine structure is positioned in between the turbocharger unit and the cylinder block. The engine structure includes at least one fluid channel extending in a bent manner from a first surface of the engine structure to a second surface of the engine structure.