Intake air routing device for an engine, and engine incorporating same

摘要

An intake air routing device for an engine having a plurality of cylinders, includes a pair of half case bodies forming an air chamber, an air filter arranged in the air chamber and configured to purify outside air received via an intake duct, and a plurality of intake passages extending from the air chamber. The plurality of intake passages are connected with respective intakes ports of the engine. A partition plate is disposed in the air chamber, and is formed separately from the case bodies. The partition plate is arranged in the air chamber such that it extends in the air chamber by a predetermined length in a direction intersecting with a direction where the intake passages are lined up so as to partition the intake passages from each other. Such intake air routing device reduces intake interference while maintaining a small size of the intake air routing device.

主权项

1. An intake air routing device for an internal combustion engine, the engine comprising a plurality of cylinders and a plurality of intake ports, each of the intake ports operatively connected with a respective one of the cylinders; said intake air routing device operable to feed air into the intake ports of the internal combustion engine through a plurality of intake passages, said intake air routing device comprising:
a hollow case body having an air chamber formed therein and configured to take in outside air; a plurality of intake passages at least partially disposed in the case body, wherein the intake passages are in fluid communication with the air chamber; an air filter element disposed in the case body; and a partition wall formed separately from the case body and disposed in the air chamber so as to separate inlet portions of the intake passages from each other; wherein the partition has a perimeter edge and a substantial portion of the edge is spaced from an interior surface of the case body.