| 摘要 |
A flow guiding structure for guiding into a clockwise swirling flow pattern gas flowing into a gas passageway leading toward a combustion chamber of an internal combustion engine. The structure includes a tubular peripheral wall having a base section for securing the structure to the gas passageway and a n integrally extending guiding section. A plurality of guiding vanes extend radially inward from the guiding section each about a corresponding vane first edge. Each guiding vane includes a vane second edge extending in a geometrica l plane perpendicular to the structure longitudinal axis. Each guiding vane further includes a substantially convex vane third edge. The guiding section is provided with a plurality of guiding bents formed therein and extending radially inwardly. The guiding bents are adapted to act as an auxiliary guide and as reinforcement for the structure.
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