Vehicle underfloor structure
AssigneeNissan Motor Co., Ltd.
InventorsManabu Sato, Hiroyuki Shiozawa, Moritsune Nakata
Life of this patent
Estimating the term…
Abstract
In order to effectively cool an underfloor part, such as a transmission or a rear differential, and improve the aerodynamic conditions of the rear wheels, a front under member serving as a bottom of a front part of the vehicle is formed with left and right air passages for discharging inside air in the front part of the vehicle toward the rear wheels, and a middle air passage for contracting an outside underfloor air stream coming from the front of the vehicle, and directing the underfloor air stream along the center line of the vehicle.
Claims32
An underfloor structure of a vehicle, comprising:
- a first under member which comprises a flat portion for closing an underside of a high pressure portion formed in a front part of the vehicle, left and right discharge portions for discharging inside air in said high pressure portion to an outside of the vehicle, respectively, toward rear wheels of the vehicle, and a throttle portion for contracting an outside air stream flowing under said first under member from a front of the vehicle, and for guiding the outside air stream toward an underfloor unit placed under a floor of the vehicle, said left and right discharge portions being located approximately symmetrically with respect to a vehicle center line of the vehicle, said throttle portion extending between said left and right discharge portions.
A vehicle comprising:
- an under member which defines a front compartment of the vehicle by closing an underside of said front compartment of the vehicle, said under member comprising left and right side portions defining left and right side upside channels for discharging air from an inside of said front compartment of the vehicle to an outside of said front compartment, toward a rear of the vehicle, and a middle portion defining a middle downside channel for guiding an outside air stream flowing under said under member toward the rear of the vehicle, said middle portion extending between said left and right side portions.
Dependencies are inferred from the claim text.