Title:
AIR RESISTANCE REDUCING DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP3183132
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To reduce air resistance with a simple structure without deteriorating the appearance of a vehicle by providing a vibrating wall vibrated according to driving wind on the surface of the vehicle.
SOLUTION: The lower surface of a vehicle 2 is covered with a cover 3, a rectangular recessed part 4 in plane view is provided in the center part, and a passive wall 5 is integrated into the recessed part 4. The passive wall 5 is formed of an inside wall member 7 fixed to the recessed part 4 and a surface side wall member 8 (vibrating wall) provided flush with the surface of the cover 3. The inside wall member 7 has a plurality of partitioning members 9 along the longitudinal direction to partition a plurality of space parts 10 between the inside wall member 7 and the surface side wall member 8. In the running wind turned round to the lower surface 1 of the vehicle 2, the passive wall 5 is vibrated in a prescribed vibration mode by the pulsation of the viscous sublayer of turbulence boundary layer to flatten the surface of the viscous sublayer, whereby the interference of the flow mass in the turbulence boundary layer to the viscous sublayer is minimized to reduce the frictional resistance.
Inventors:
Yamamoto, Satoshi
Nakagawa, Kunio
China, Hiroshi
Yanagimoto, Norio
Yoshida, Masahiro
Nagayoshi, Tsunehisa
Nakagawa, Kunio
China, Hiroshi
Yanagimoto, Norio
Yoshida, Masahiro
Nagayoshi, Tsunehisa
Application Number:
JP1995000299161
Publication Date:
April 27, 2001
Filing Date:
October 24, 1995
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
B62D35/02; B62D25/20; B62D37/02; B62D35/00; B62D25/20; B62D37/00; (IPC1-7): B62D35/02; B62D25/20
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