Engine intake system
AssigneeMazda Motor Corporation
InventorsYuta Takamura, Motohiro Ariki, Masakazu Kikuchi, Chizuki Nakamura
Life of this patent
Estimating the term…
Abstract
An engine cover covers an engine; and an intake pipe through which the air is introduced into the engine. An intake silencer is provided adjacent to the intake pipe and suppresses air pressure fluctuations of air in the intake pipe to reduce intake sound. A portion of the intake silencer is covered with the engine cover, and a remaining portion is exposed with respect to the engine cover. An advantage is that secondary noise generated by the intake silencer and a temperature increase of air suctioned into the engine are simultaneously suppressed.
Claims19
An engine intake system comprising:
- an engine cover that covers an engine accommodated in an engine compartment of a vehicle;
- an intake pipe through which air is introduced into the engine;
- and
- an intake silencer that is disposed adjacent to the intake pipe and suppresses air pressure fluctuations of the air in the intake pipe to reduce intake sound, wherein
- a first portion of the intake silencer is covered by the engine cover, and a remaining portion of the intake silencer is exposed with respect to the engine cover, and
- the intake silencer is an expandable intake silencer having at least one expansion chamber, a portion of the expansion chamber is exposed from the engine cover and a remaining portion of the expansion chamber is covered with the engine cover.
An engine intake system comprising:
- an engine cover that covers an engine accommodated in an engine compartment of a vehicle;
- an intake pipe through which air is introduced into the engine;
- an intake silencer that is disposed adjacent to the intake pipe and suppresses air pressure fluctuations of the air in the intake pipe to reduce intake sound, and
- a turbocharger that is arranged on a downstream side of the intake silencer in an air flow direction of the air in the intake pipe and boosts an air pressure of air introduced into the engine, wherein
- a first portion of the intake silencer is covered by the engine cover, and a remaining portion of the intake silencer is exposed with respect to the engine cover, and
- a downstream portion of the intake silencer, a portion of the intake pipe from the downstream portion of the intake silencer to the turbocharger, and the turbocharger are covered by the engine cover, and an upstream portion of the intake silencer is exposed with respect to the engine cover.
An engine intake system comprising:
- an engine cover that covers an engine accommodated in an engine compartment of a vehicle;
- an intake pipe through which air is introduced into the engine;
- and
- an intake silencer that is disposed adjacent to the intake pipe and suppresses air pressure fluctuations of the air in the intake pipe to reduce intake sound, wherein
- a first portion of the intake silencer is covered by the engine cover, and a remaining portion of the intake silencer is exposed with respect to the engine cover,
- the first portion of the intake silencer that is covered with the engine cover is inserted through a through hole in in the engine cover, and
- the intake silencer is elastically supported by the through hole of the engine cover with a seal.
Dependencies are inferred from the claim text.