Air intake device
AssigneeDenso Corporation
InventorKazuhiro Hayashi
Life of this patent
Estimating the term…
Abstract
An air intake device includes an inner pipe member having a substantially cylindrical shape and defining therein an air intake passage by a wall portion of the inner pipe member, and an outer pipe member which surrounds a periphery side of the inner pipe member to define therebetween a space. The air intake passage communicates a surge tank with an atmosphere intake port through which air is introduced into the surge tank. The wall portion of the inner pipe member has at least one sound transmission portion through which sound is more readily transferred than other portions of the wall portion. The space has one end which is opening and positioned at a side of the atmosphere intake port, and the other end which is closed and positioned at a side of the surge tank.
Claims8
An air intake device comprising:
- an inner pipe member having a substantially cylindrical shape and defining therein an air intake passage by a wall portion of the inner pipe member, the air intake passage communicating a surge tank with an atmosphere intake port through which air is introduced into the surge tank,
- the wall portion of the inner pipe member having at least one sound transmission portion through which sound is more readily transferred than other portions of the wall portion;
- and
- an outer pipe member which surrounds a periphery side of the inner pipe member to define therebetween a space, the space having one end which is opening and positioned at a side of the atmosphere intake port and an other end which is closed and positioned at a side of the surge tank.
Dependencies are inferred from the claim text.