Air intake sound transmission device and method

Abstract

An air intake sound transmission device of a vehicle is disclosed. The air intake sound transmission device comprises an engine hood and an intake channel. The engine hood has a vibratory portion. The intake channel connects an inlet of an engine to a fresh-air inlet. The intake channel further includes an opening positioned at an intermediate section thereof. The opening faces the engine hood and transmits pressure fluctuations in the intake channel caused by operation of the engine to the vibratory portion of the engine hood. The vibratory portion of the engine hood vibrates in response to the pressure fluctuations. A method of generating an air intake sound is also disclosed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Other features and advantages of the present invention will be apparent from the ensuing description, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a plan view showing a configuration of an air intake sound transmission device according to a first embodiment;

FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1.

FIG. 3 is a graph that illustrates a relationship between a sound pressure level and a first order component of revolution for every combustion;

FIG. 4 is a plan view showing a configuration of an air intake sound transmission device according to a second embodiment; and

FIG. 5 is a cross-sectional view taken along line V-V in FIG. 4.

Claims

1. An air intake sound transmission device of a vehicle comprising: an engine hood having a vibratory portion; andan intake channel that connects an inlet of an engine to a fresh-air inlet, wherein the intake channel further includes an opening positioned at an intermediate section thereof, wherein the opening faces the engine hood, and wherein pressure fluctuations in the intake channel caused by operation of the engine is transmitted to the vibratory portion of the engine hood through the opening so as to vibrate the vibratory portion.

2. The air intake sound transmission device according to claim 1, wherein the intake channel comprises an intake pipe and an extended portion, wherein the extended portion is in communication with the opening.

3. The air intake sound transmission device according to claim 2, wherein the extended portion comprises an air-cleaner box containing a filter.

4. The air intake sound transmission device according to claim 1, wherein the intake channel includes a filter disposed in the intermediate section thereof, and wherein the opening is disposed between the fresh-air inlet and the filter.

5. The air intake sound transmission device according to claim 1, wherein the intake channel includes a branch channel and wherein the branch channel has the opening positioned at a tip end of the branch channel.

6. The air intake sound transmission device according to claim 5, wherein the intake channel further comprises an extended portion positioned at the intermediate section and wherein the extended portion is connected to a base end of the branch channel.

7. The air intake sound transmission device according to claim 6, wherein the extended portion comprises an air-cleaner box containing a filter.

8. The air intake sound transmission device according to claim 1, further comprising an elastic member that is disposed so as to surround a periphery of the opening, wherein the elastic member extends towards the engine hood and includes an end that is in contact with the engine hood.

9. The air intake sound transmission device according to claim 1, wherein the engine hood further comprises a low rigidity portion.

10. The air intake sound transmission device according to claim 9, wherein the low rigidity portion of the engine hood extends around a periphery of the vibratory portion.

11. A method of transmitting an air intake sound, comprising: introducing air into an engine through an intake channel;andtransmitting a pressure fluctuation in the intake channel to a vibratory portion of an engine hood so as to vibrate the vibratory portion to amplify sound.

12. An air intake sound transmission device for a vehicle comprising: an intake channel that connects an inlet of an engine to a fresh-air inlet, anda pipe that communicates with the intake channel;wherein the pipe includes an opening that faces a vibratory portion of an engine hood.

13. An air intake sound transmission device for a vehicle comprising: an elastic member that is disposed so as to surround a periphery of the opening of an intake channel that connects an inlet of an engine to a fresh-air inlet, wherein the elastic member extends towards a vibratory portion of an engine hood and has an end that contacts the vibratory portion.

14. An air intake sound transmission device of a vehicle, comprising: an engine hood having a vibratory means; andan intake means that connected to an inlet of an engine to a fresh-air means, wherein the intake means further includes an opening positioned at an intermediate section thereof, wherein the opening faces the engine hood, and wherein pressure fluctuations in the intake means caused by operation of the engine is transmitted to the vibratory means of the engine hood through the opening so as to vibrate the vibratory means.