US Patent 11059528 Air resistance reduction device for vehicle

A first strake and a second strake, which are provided in front of a front wheel when viewed from in front of a vehicle, and a passage defined by the first strake and the second strake. The passage is open to a space in front of the vehicle, and the second strake located close to a lateral surface among the first strake and the second strake extends rearward in a front-rear direction of the vehicle from a front end of the second strake and further extends rearward curving to a rear end of the second strake that is closer to a vehicle lateral side than the front end.