Intake sound introducing apparatus
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorsTetsuro Takahashi, Kenichi Tsuchiya, Takashi Seki
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Abstract
An intake sound introducing apparatus has, for example, a branch pipe, a sound creator, a communication pipe, and a resonator. The branch pipe branches from an intake pipe of the engine. The sound creator includes a vibrator that vibrates with the intake pulsation of the intake sound propagating within the branch pipe. The communication pipe provides communication between the inside of a casing of the sound creator and the inside of the cabin. The resonator is provided in the communication pipe.
Claims15
An intake sound introducing apparatus for introducing an intake sound of an engine mounted in a vehicle into a cabin, the intake sound introducing apparatus comprising:
- a sound transmission line defining a first pathway extending from an intake pulsation inlet to a sound vibration outlet, the sound transmission line comprising:
- an upstream passage to transmit intake pulsation of the intake sound, the upstream passage including a branch passage, the branch passage branching from an intake system of the engine;
- a sound creator defining a first inner space, the first inner space housing a vibrator that vibrates with the intake pulsation of the intake sound in the upstream passage to generate sound vibrations;
- and
- a downstream passage to transmit vibration of the vibrator to the cabin, the downstream passage including a communication passage, the communication passage communicating with the cabin;
- and
- a resonator defining a second inner space as a second pathway that deviates from the first pathway of the sound transmission line, the resonator being positioned to reduce a predetermined range of frequency components in intake pulsations or sound vibrations.
An intake sound introducing apparatus for introducing an intake sound of an engine mounted in a vehicle into a cabin, the intake sound introducing apparatus comprising:
- a sound transmission line defining a first pathway extending from an intake pulsation inlet to a sound vibration outlet, the sound transmission line comprising:
- an upstream passage to transmit intake pulsation of the intake sound, the upstream passage including a branch passage, the branch passage branching from an intake system of the engine;
- a sound creator defining a first inner space, the first inner space housing a vibrator that vibrates with the intake pulsation of the intake sound in the upstream passage to generate sound vibrations;
- and
- a downstream passage to transmit vibration of the vibrator to the cabin, the downstream passage including a communication passage, the communication passage communicating with the cabin;
- and
- a resonator defining a second inner space as a second pathway that deviates from the first pathway of the sound transmission line, the resonator being positioned to reduce high frequency components in intake pulsations or sound vibrations,
- wherein the resonator is disposed at a position corresponding to an antinode of the sound vibration produced inside the sound creator.
An intake sound introducing apparatus for introducing an intake sound of an engine mounted in a vehicle into a cabin, the intake sound introducing apparatus comprising:
- an upstream passage for transmitting intake pulsation of an intake sound, the upstream passage including a branch passage for branching from an intake system of the engine;
- a sound creator comprising an inlet opening and an outlet opening, the sound creator defining a first inner space housing a vibrator that vibrates with intake pulsation of an intake sound transmitted by the upstream passage to generate a sound vibration;
- a downstream passage for transmitting vibration of the vibrator to the cabin, the downstream passage including a communication passage for communicating with the cabin;
- and
- a sound modifier defining a second inner space, the sound modifier being positioned to reduce frequency components in intake pulsations or sound vibrations, wherein
- the branch passage is joined with an inlet pipe that is inserted into the inlet opening of the sound creator, the inlet pipe extending into the first inner space of the sound creator, the downstream passage is joined with the outlet opening of the sound creator, and the vibrator is positioned on the inlet pipe and within the first inner space of the sound creator, and
- the sound modifier is configured to deviate from the downstream passage.
Dependencies are inferred from the claim text.