| 摘要 |
The present invention relates to a device for introducing additional gas into the intake or exhaust ports of a cylinder head of an internal combustion engine. This device is of the type comprising a central plate (7) interposed between a face of the cylinder head (1) in which the ports (2) emerge and a piece for connecting several pipes (4) to the ports (2), a recess forming a passage (C) emerging, over its entire extent, on the two faces of the plate (7), the said recess C being hermetically covered on each of its faces by brazing two metal sheets (8, 9). The device applies to producing engines, for example, for a motor vehicle. <IMAGE> |
