Mazda Motor Corporation

Yukiichirou Shimada

Noritaka Sakiyama

Fumio Okana

Shigeyuki Mori

Yoshiaki Murakami

Yoshikazu Nishimura

Chikara Ishihara

Shirou Nakatani

Ken Ueki

Nobuyuki Ikemoto

Kota Matsue

Makoto Ikegami

Shinya Matsumoto

Masamitsu Tanaka

Taichi Kobayashi

Noriyoshi Sahashi

Akifumi Ohno

An exhaust-gas purification device disposition structure of a vehicle, comprises a fuel tank with a fuel supply port which is disposed so as to be open to an outside of a vehicle compartment, and a urea tank to accommodate urea water solution as deoxidizer to purify exhaust gas. The urea tank is disposed outside the vehicle compartment, and a pouring port of the urea tank is provided inside the vehicle compartment. Accordingly, the urea water solution can be surely prevented from entering into the vehicle compartment even in case of the breakage of the urea tank, and the mistake of supplying the wrong liquid into the wrong supply (pouring) port tank which may be made by confusing the ports can be avoided.

Exhaust-gas purification device disposition structure of vehicle

A tunnel-expansion portion is provided at a front portion of a tunnel portion. The tunnel-expansion portion projects upward greatly and widely so as to provide components of an exhaust system that extend rearward from an exhaust manifold therein (outside a vehicle compartment). Accordingly, there can be provided a front structure of a vehicle, in which an engine is laterally disposed in an engine room at a front portion of the vehicle, an intake pipe is disposed in front of the engine, and an exhaust pipe is disposed in back of the engine, which can improve an exhaust efficiency and a vehicle safety against a vehicle crash, without providing an improperly-large longitudinal space between the engine and the dash panel.

Front structure of vehicle

Disclosed is an automobile underbody structure, wherein a pair of laterally-spaced floor framesare disposed to extend longitudinally in such a manner as to interpose a tunnel regionof a front floor portiontherebetween and joined to a bottom surface of the front floor portion, and a cross memberis disposed to extend laterally so as to connect each side-silland the tunnel regionand joined to a top surface of the front floor portion. Each of the floor framesis gradually inclined laterally inward toward the rear end thereof so as to be obliquely disposed relative to the cross memberin top plan view. A rearward displacement of the floor framesduring a head-on collision exerts a compressive force on a region of the cross memberlocated on the laterally outward side relative to each of the floor frames, and a tensile force on a region of the cross memberlocated on the laterally inward side relative to each of the floor frames. The automobile underbody structure of the present invention makes it possible to effectively receive a shock during a head-on collision by the cross member.

Automobile underbody structure

Disclosed is an underbody structure for an automobile, which comprises a pair of laterally-spaced floor framesdisposed to extend longitudinally in such a manner as to interpose a tunnel regiontherebetween and joined to a bottom surface of a front floor portion. Each of the floor frameshas a rear end located in the vicinity of a rear kick-up portionextending upward from a rear end of the front floor portion. The rear kick-up portionand each rear end region of the floor framesare connected to one another from the exterior side of the automobile through an end gusset(). The end gusset() may be designed to define a closed section in cooperation with the rear kick-up portion, or to extend laterally outward so as to be connected to a front end region of a rear frame. The underbody structure of the present invention can prevent or suppress a rearward movement of each rear end of the floor frames during a head-on collision.

Growing community of inventors

Higashihiroshima, Japan

Yukiichirou Shimada