A multi-cylinder internal combustion engine capable of decreasing the pressure or temperature of exhaust gas more than the conventional art is provided. The internal combustion engine includes #A cylinder, #B cylinder and an exhaust path 16. The exhaust pa...

An internal combustion engine is capable of improving cleaning efficiency by preventing an increase in the temperature of the exhaust gas to lessen the deterioration of the catalyst. The internal combustion engine 1 includes a convergent section 32, a dive...

The air intake tube (1) for an internal combustion motor, and especially its turbocharger, has a fitted absorption chamber linked to the flow (P) to reduce noise levels. The unit has a one-piece connector/damper (4) with a snap coupling (5), and an inlet e...

The silencer (1) has an outer pipe (2) with expanded regions enclosing an inner pipe (3). The expanded regions in the outer pipe form absorption chambers (4,5). Slits and holes of different shapes (6-8) in the inner pipe connect the interior of the pipe to...

In order to form a noise suppressor in a hose of e.g. a motor vehicle, modular portions (60,68) are connected in series to define suppression chambers (76,80) with particular noise suppression characteristics. Those characteristics are due to the volume of...

The attenuation device comprises a plastic module comprising an inlet pipe (10.1) connected to a first end (20.1) of a cavity. The second end of the cavity (20.2) is connected to an outlet pipe (11.2). The inlet and outlet pipes extend inside the cavity by...