An object of the present invention is to avoid vibrational damage to an exhaust gas treatment apparatus attached by way of an exhaust pipe to an engine body (1). The casing of the exhaust gas treatment apparatus (4) consists of a plurality of casing units ...

There is provided an engine in which a projection of the oxygen concentration sensor outwardly of the cylinder head can be prevented and engine size increase is reduced even if the oxygen concentration sensor is provided at a position at which the exhaust ...

A process for operating an internal combustion emgine with an exhaust gas driven turbocharger (5) includes determining the exhaust gas mass in a volume (20) between one or more exhaust valves (25) of the internal combustion engine amd a turbocharger turbin...

There is provided a multicylinder internal combustion engine. Branches (3) of an exhaust manifold (1) are connected to a common exhaust gas sensor (13) via respective exhaust communication passages (11). The exhaust gas sensor (13) detects the exhaust air-...

An exhaust manifold provides improved output by suppressing exhaust interference between cylinders at the exhaust manifold. The exhaust manifold of an internal combustion engine, comprises a collector case (23) having an upstream end and a downstream end; ...

The present invention relates to a heating arrangement (10) being arranged in a vehicle. The vehicle comprising a catalyst (13) and at least one oxygen sensor (14) arranged inside the catalyst (13). The heating arrangement (10) comprising a heating element...

In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected to a carburetor (33) in an intake system of an engine (E), a...