| 摘要 |
PCT No. PCT/SE88/00337 Sec. 371 Date Dec. 18, 1989 Sec. 102(e) Date Dec. 18, 1989 PCT Filed Jun. 17, 1988 PCT Pub. No. WO88/10361 PCT Pub. Date Dec. 29, 1988.An exhaust outlet conduit for internal combustion engines and adapted to function as a resonator for exhaust waves exiting from the cylinder or cylinders to which the conduit is connected. The conduit (4) is characterized by a combination of features, according to which the conduit exhibits an exhaust throughflow area which increases outwardly from the end of the conduit connected to the cylinder (1), and the conduit wall has provided therein one or more openings (5). The openings are so configured that the total opening area increases along the conduit in a direction away from the cylinder (1), so as to increase the frequency range over which the conduit (4) will function as a resonator.
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