FLOW CONTROL DEVICE FOR VEHICLE

• Main Authors: KOBAYASHI, KUNIHIRO, ASANO, KAZUHIDE, MIYASHITA, KATSUMI, UCHIYAMA, EIICHI, FURUYA, HIROTO
• Format: Patent
• Language: English; French; German
• Published: 02.03.2016
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

A front straightening portion (34) is formed at a front portion of a main body portion (32) of a spat (30). In the front straightening portion (34), a front inclined surface (36) is inclined backward with respect to a vehicle with decrease in distance to a lower side of the vehicle in a lateral view, and front lateral surfaces (38) extend forward with respect to the vehicle from both end portions of the front inclined surface (36) in a vehicle width direction, respectively. Then, a traveling wind (F3) that has hit the front lateral surfaces (38) flows toward the front inclined surface (36) side, and is caused to flow out downward with respect to the vehicle from the front straightening portion (34) together with a traveling wind (F2). Therefore, the flow velocities of the traveling winds (F2, F3) increase. Thus, the traveling winds (F2, F3) are restrained from hitting a front tire (12) and the like, so the air resistance of the vehicle can be reduced. Besides, since the flow velocities of the traveling winds (F2, F3) increase, a buoyant force is applied to the vehicle. Therefore, the buoyant force and the gravitational force are counterbalanced by each other, so the operation stability of the vehicle can be enhanced. Furthermore, the buoyant force restrains the vehicle from fluctuating in the vertical direction, so the riding comfort performance of the vehicle can be enhanced.