Title:
車両の消音構造
Document Type and Number:
Japanese Patent JP7342615
Kind Code:
B2
Abstract:
To reduce propagation of noise in a pipe in a wide frequency range at a skeleton member 1 of a vehicle.SOLUTION: Helmholtz type resonators 11 are cyclically provided at intervals in a longitudinal direction of a skeleton member 1 within the skeleton member 1. Cavities 12 of the respective resonators 11 open at intervals in the longitudinal direction in a hollow space 13 extending in the longitudinal direction within the skeleton member 1.SELECTED DRAWING: Figure 2
Inventors:
Tetsuki Hata
Nahoko Yorozu
Nahoko Yorozu
Application Number:
JP2019194973A
Publication Date:
September 12, 2023
Filing Date:
October 28, 2019
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
B60R13/08; B62D25/20; B62D25/04; B62D25/06; G10K11/16; G10K11/172
Domestic Patent References:
| JP2003267168A | ||||
| JP2017030208A1 | ||||
| JP2019152837A | ||||
| JP2008114697A | ||||
| JP2019085057A | ||||
| JP2017019307A |
Attorney, Agent or Firm:
Patent Attorney Corporation Maeda Patent Office