Title:
増音装置
Document Type and Number:
Japanese Patent JP4689363
Kind Code:
B2
Abstract:
A sound increase apparatus includes a partition wall (8) adapted to divide an engine room (4) for defining a first engine room space (10) of which one wall comprises a side of a dash panel (6) and a second engine room space (14) in which an engine (12) is installed, and a first pressure fluctuation amplification unit (20) inter-communicating an engine inlet pipe (16) arranged in the second engine room space (14) and the first engine room space (10). The first pressure fluctuation amplification unit (20) amplifies a pressure fluctuation of a first frequency selected from a plurality of frequencies when pressure of air residing inside the engine inlet pipe (16) fluctuates at the plurality of frequencies.
Inventors:
Hiroyuki Abe
Hiromichi Akamatsu
Satoshi Sasaki
Masashi Shinada
Yuta Saito
Hiromichi Akamatsu
Satoshi Sasaki
Masashi Shinada
Yuta Saito
Application Number:
JP2005179682A
Publication Date:
May 25, 2011
Filing Date:
June 20, 2005
Export Citation:
Assignee:
Nissan Motor Co., Ltd
Mare Filter Systems Co., Ltd.
Mare Filter Systems Co., Ltd.
International Classes:
B60K13/02; F02M35/16; F01N13/10; F02M35/10
Domestic Patent References:
| JP2005147141A | ||||
| JP2005076619A | ||||
| JP2005139982A |
Attorney, Agent or Firm:
Tetsuya Mori
Hide Tanaka Tetsu
Toru Miyasaka
Hide Tanaka Tetsu
Toru Miyasaka