Denso Corporation

Nippondenso Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Toshiki Sugiyama

Ikuo Ozawa

Norihisa Sasano

Noriaki Maeda

Harumi Okai

Takuya Usami

Kazuhiro Takeuchi

Kazuaki Kafuku

Akihiro Maeda

Satoshi Yoshimura

Yuhei Kunikata

Junji Sugiura

Masahiko Suzuki

Kazuma Matsui

Akira Takagi

Shun Kurata

Hiroaki Okuchi

Yasushi Suzuki

Hiromi Takagi

Yasuo Takahara

Yasuhiro Horiuchi

Hiroshi Iwata

Tomoyuki Hatano

Masakazu Watanabe

Takeshi Nagasaka

Hisashi Kayano

Jun Hoshi

Yasushi Hibi

Yoshitake Hoshino

Toshihiro Ohshima

Fumihiro Takeuchi

Tadashi Setoguchi

Kougorou Nakagawa

Yasuhiko Itou

Yasuhiro Itoh

Yoshihiro Suguro

Isao Hara

Atusi Masui

In a ventilation duct of a cooling system, a level difference is formed between a wall located on a vehicle front side and a wall located on a vehicle rear side because a bottom end of the wall located on the vehicle front side is lower than a bottom end of the wall located on the vehicle rear side. The level difference makes a speed of a traveling wind flowing near an outlet faster than that flowing away from the outlet. Therefore, a pressure of the traveling wind flowing near the outlet decreases. As a result, air flows in the ventilation duct to be drawn to the neighborhood of the low-pressure outlet, and discharged out. Because cooling air including the traveling wind can be increased, heat radiation capacity of a radiator disposed in the ventilation duct is improved, and the cooling capacity of the cooling system can also be improved.

Cooling system for vehicle

An inletis disposed at a position which is on an upper side relative to an axial flow fanand is opposite to a direction of air flow produced by the rotation of the axial flow fan, whereas an intercooleris disposed at a position which is on a lower side relative to the axial flow fanand is downstream along the direction of air flow produced by the rotation of the axial flow fan, whereby it can be prevented that an air cleanerconstitutes a resistance to an air flow to thereby reduce the volume of air which passes through the intercooler. Consequently, intake air can be sufficiently cooled to thereby increase the output of an engine

Vehicle front end structure

An attachment portion between an upper member () and a radiator () is constructed so as to be displaced in a longitudinal direction of the upper member () when an impact force is applied to the upper member () by constructing a mount cushion () so as to be deformed easily in a longer diameter direction thereof. By this structure, when an impact force is applied to the upper member () from a front side of a vehicle, as it is not that the radiator () and the upper member () are deformed together but that the upper member () is deformed prior to the radiator (), a bending rigidity to an impact force becomes smaller than a conventional case. Consequently, since the upper member is allowed to be deformed easily at the time of collision without largely reducing the mechanical strength of the upper member (), compatibility between the requirements of protection of pedestrians and sufficient strength of the upper member () can be ensured.

Front-end structure of vehicle

In a front end structure of a vehicle, a heat exchanger is arranged at a position lower than a bumper reinforcement member, so a position of an engine hood is lowered. Electric auxiliary devices such as a radar, electronic control units for lights, and an air cleaner are arranged at a position higher than the bumper reinforcement member or at the rear of the bumper reinforcement member. By this arrangement, the electric auxiliary devices are arranged at a position which is less likely to be affected by the bumper reinforcement member in a case of light frontal crush.

A clearanceis provided between the outer periphery of a ductand a vehicle body, that is, a radiator supportand, at the same time, the clearanceis made to have a labyrinth structure. In this structure, it is possible to prevent vibrations of the vehicle body from being propagated from the radiator supportto the ductwhile preventing a current of air, such as one caused by movement of the vehicle, from flowing around heat exchangers, such as a radiatorand flowing downstream through the clearanceTherefore, it is possible to improve the cooling performance of heat exchangers such as the radiatorwhile preventing the ductthat is, a duct shroudfrom being damaged by vibration.

Front end structure of vehicle with labyrinth structure forming means for cooling air to a radiator

A front end structure includes a front end panel () that is configured as a duct structure for preventing the air introduced from a grille opening () from bypassing a condenser () and a radiator (). A fan unit () is arranged on the most upstream side portion of the structure. As a result, without the need to provide parts making up a separate duct structure, fresh air flow temperature can be blown in, while at the same time, the air that has passed through the condenser () can be prevented from bypassing the radiator (). Thus, the heat releasing capacity of the condenser () and the radiator () can be improved while simultaneously preventing leakage between the condenser () and the radiator () without adding complex structure.

Front end structure

A front-end module, including a heat exchanger including a radiator and a condenser integrated with each other, brackets, etc. and having a dual function as a strength member for the vehicle body, is mounted on an automotive vehicle. As a result, the front end panel is eliminated, and a simple structure is provided in which the parts which can be assembled on the front end of the vehicle, including the radiator, the condenser, headlights, a hood lock, a horn and sensors, can be assembled on the vehicle.

Vehicle-mounted structure for heat exchanger

A front end panel ( ) is fixed to side members ( ) behind crushable zones ( ). Due to this structure, most of the impact forces are absorbed by the deformation of a bumper reinforcement ( ) and the crushable zones ( ) and large impact forces are not transferred to the front end panel ( ). Therefore, it is possible to prevent the front end panel ( ) from being seriously damaged by impact forces produced in collision while preventing increases in both the number of parts and the man-hours required in assembling the front end structure and an increase in the repair costs for the front end panel because brackets, which are additional parts, can be discarded and, as a matter of course, notches to be provided to the brackets can be dispensed with.

Front end structure of vehicle with crushable zones for collision damage

A front-end structure comprising a panel body ( ) to which a center member ( ), being fixed to a body of a vehicle at a front end of the vehicle and supporting, at least, a driving engine (E/G), is joined, wherein the panel body ( ) is molded out of aluminum by die-casting and a joining section ( ) of the panel body ( ) to which the center member ( ) is joined has a mechanical strength higher than that of any other sections of the panel body ( ) near the joining section ( ) except the joining section ( ).

Front-end structure of a vehicle

A vent line ( ) for establishing communication between the interior of headlamps ( ) and at least a blower ( ) is formed integrally with a front end panel ( ). The vent line ( ) makes up a duct member ( ) leading from each of the headlamps ( ) to the blower ( ). A light controller ( ) is assembled by being fixed on the panel ( ) in such a manner as to be located at the air inlet ( ) of the duct member ( ) (vent line ( )).

Front end structure and headlamp system of automotive vehicle

When a load given to the engine is less than a predetermined value, the outside air suction port is closed and only inside air is supplied to the engine , and the valve is opened so as to supply warm water to the heater . When the load given to the engine is not less than the predetermined value and the temperature of air outside the engine compartment is lower than a predetermined value, the inside air suction port is closed and only outside air is supplied to the engine , and the valve is closed so that the supply of warm water to the heater is stopped.

Internal combustion engine device

The radiating section ( ) of the control unit ( ) is exposed to air flowing in the intake path ( ) formed in the panel body ( ). Due to the foregoing, it is possible to cool the control unit ( ) by air (about 35&deg; C.), the temperature of which is lower than the temperature of air (about 60&deg; C.) which has passed through the condenser ( ) and the radiator ( ). Accordingly, the cooling effect (cooling capacity) can be enhanced. Therefore, the size of the radiating section ( ) can be reduced, and the structure of the control unit ( ) (the mounting structure of the electronic parts ( )) can be simplified. As a result, the manufacturing cost of the control unit ( ) can be reduced.

Front end panel

When the suction opening portion is covered with the decoration grill from the front side of a vehicle, the suction chamber filled with air is formed on the front side of the suction opening portion , and the communication passage to connect the suction chamber with the outside of the suction chamber in a direction perpendicular to the longitudinal direction of the vehicle is formed into a labyrinth structure by the decoration grill , bumper cover and front end panel . Due to the above structure, it is possible to supply air, which has been sucked from the outside of the engine compartment, to the engine while foreign material, such as rain water and snow, is prevented from being sucked into the engine.

Front end structure for vehicle

The flexible section made of rubber or elastomer is molded integrally with the panel body on the forward end side of the guide duct section of the panel body made of resin, and the seal section for tightly closing gap &dgr; between the panel body and the heat exchanger is molded integrally with the panel body on the introduction opening section side in the panel body Due to the foregoing, it is possible to prevent the panel body and the guide duct section from being damaged in the case of a light collision. Therefore, a repair cost, which must be paid by a vehicle owner, is reduced and an increase in the number of parts of the front end structure and an increase in the cost of assembling are suppressed even though gap &dgr; between the panel body and the heat exchanger is tightly closed so that a decrease in the heat radiating capacity (heat exchange capacity) of the heat exchanger can be prevented. Improvements are made so that the mechanical strength at a joining face of a resin molding molded by integrally molding the guide duct section and the flexible section can be enhanced and the deformation of parts can be prevented.

Resin molding for vehicle use and manufacturing method thereof

An intake duct (intake air path) utilizes an upper beam member of a front end panel, the cross section of which is substantially a C-shape. When the front end panel is assembled into a vehicle with the duct member being attached to the front end panel, assembling of the intake duct is completed. In another embodiment, a space (intake duct) is formed in a first pillar section of the front end panel with an intake port and a discharge port, which communicate the inside of the space with the outside of the space; the parts are arranged such that they are shifted from each other when they are viewed from the front side of the vehicle. Thus, a current of air flowing into the space flows in a crank-shape and passes outside of the space. Accordingly, foreign objects such as rain water and snow, which have entered the space together with air, will not flow together with the current of air flowing in the space. Therefore, the foreign objects such as rain water and snow remain in the space.

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Kariya, Japan

Toshiki Sugiyama