Abstract: A vehicular heat management device includes a first heat source, a second heat source, a heater core, a first heat medium pathway, a second heat medium pathway, a heater core pathway, a switching portion, and a control unit. The first heat source is provided in the first heat medium pathway, and the second heat source is provided in the second heat medium pathway. The heater core is provided in the heater core pathway. The switching portion switches between flowing connection and flowing disconnection. The control unit performs at least one of a switching control and a second heat source control when a temperature of the heat medium of the heater core pathway is at or above a predetermined temperature. In the switching control, the switching portion connects the second heat medium pathway to the heater core pathway. In the second heat source control, the second heat source generates heat.

Abstract: A vehicular heat management device includes a first heat source, a second heat source, a first heat generator, a second heat generator, a heat generator pathway, a first heat source pathway, a second heat source pathway, and a switching portion. The first heat source and the second heat source heat a heat medium. The first heat generator generates heat according to operation. The second heat generator generates heat according to operation. The first heat generator and the second heat generator are provided in the heat generator pathway. The first heat generator is provided in the first heat generator pathway. The second heat generator is provided in the second heat generator pathway. The switching portion switches between a condition where the heat generator pathway is in flowing communication with the first heat generator pathway and a condition where the heat generator pathway is in flowing communication with the second heat generator pathway.

Abstract: A vehicular heat management device includes a first heat source, a second heat source, a heater core, a first heat medium pathway, a second heat medium pathway, a heater core pathway, a switching portion, and a control unit. The first heat source is provided in the first heat medium pathway, and the second heat source is provided in the second heat medium pathway. The heater core is provided in the heater core pathway. The switching portion switches between flowing connection and flowing disconnection. The control unit performs at least one of a switching control and a second heat source control when a temperature of the heat medium of the heater core pathway is at or above a predetermined temperature. In the switching control, the switching portion connects the second heat medium pathway to the heater core pathway. In the second heat source control, the second heat source generates heat.

Abstract: A vehicle-mounted heat utilization device (10) includes: an engine fluid circuit (12) in which fluid circulates to cool an engine (18); a heater fluid circuit (14) that passes through an exhaust heat recovery apparatus (26) that recovers a heat of exhaust gas (28) and a vehicle-interior heat exchanger (24) for radiating a heat of the fluid into a vehicle interior; a cooling-heating fluid circuit (16) that passes through a radiating heat exchanger (34), the radiating heat exchanger being included in a refrigeration cycle (30) in which refrigerant is compressed by a compressor (32) and the compressed refrigerant is expanded; a first switching unit (52) that is configured to selectively switch a state of the engine fluid circuit (12) and the heater fluid circuit (14) between a connected and a disconnected state; a second switching unit (54) that is configured to selectively switch a state of the heater fluid circuit (14) and the cooling-heating fluid circuit (16) between a connected state and a disconnected stat

Abstract: A vehicular heat management device includes a first heat source, a second heat source, a first heat generator, a second heat generator, a heat generator pathway, a first heat source pathway, a second heat source pathway, and a switching portion. The first heat source and the second heat source heat a heat medium. The first heat generator generates heat according to operation. The second heat generator generates heat according to operation. The first heat generator and the second heat generator are provided in the heat generator pathway. The first heat generator is provided in the first heat generator pathway. The second heat generator is provided in the second heat generator pathway. The switching portion switches between a condition where the heat generator pathway is in flowing communication with the first heat generator pathway and a condition where the heat generator pathway is in flowing communication with the second heat generator pathway.

Abstract: An attachment portion between an upper member (11) and a radiator (20) is constructed so as to be displaced in a longitudinal direction of the upper member (11) when an impact force is applied to the upper member (11) by constructing a mount cushion (30) 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 (11) from a front side of a vehicle, as it is not that the radiator (20) and the upper member (11) are deformed together but that the upper member (11) is deformed prior to the radiator (20), 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 (11), compatibility between the requirements of protection of pedestrians and sufficient strength of the upper member (11) can be ensured.

Abstract: A casting method and casting mold able produce a casting having an island and connecting portion is disclosed. A casting having a body, an opening provided so as to pass through the body, an island arranged separated from the body in the opening, and a connecting portion joining the island and body is cast using a casting mold. The casting mold is provided with a body gate connected to a body cavity for forming the body and an opening gate connected to an island/connecting portion cavity for forming the island and the connecting portion. The body gate and opening gate are connected to a runner through body pin gates and opening pin gates; in addition, a die casting mold able to suitably change between a three-part mold structure and a two-part mold structure to cast a die casting is disclosed. The three-part mold structure die casting mold, a movable mold, a first cavity, a connection sleeve, a first runner, a pin gate, and an extension sleeve.

Abstract: A clearance 44 is provided between the outer periphery of a duct 42 and a vehicle body, that is, a radiator support 50 and, at the same time, the clearance 44 is 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 support 50 to the duct 42 while preventing a current of air, such as one caused by movement of the vehicle, from flowing around heat exchangers, such as a radiator 10, and flowing downstream through the clearance 44. Therefore, it is possible to improve the cooling performance of heat exchangers such as the radiator 10 while preventing the duct 42, that is, a duct shroud 40 from being damaged by vibration.

Abstract: A front end structure includes a front end panel (400) that is configured as a duct structure for preventing the air introduced from a grille opening (452) from bypassing a condenser (200) and a radiator (100). A fan unit (300) 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 (200) can be prevented from bypassing the radiator (100). Thus, the heat releasing capacity of the condenser (200) and the radiator (100) can be improved while simultaneously preventing leakage between the condenser (200) and the radiator (100) without adding complex structure.

Abstract: A casting method and casting mold able to easily produce a casting having an island and connecting portion at a high quality. A casting (1) having a body (11), an opening (12) provided so as to pass through the body, an island (121) arranged separated from the body in the opening, and a connecting portion (22) joining the island and body is cast using a casting mold (2). The casting mold is provided with a body gate (311) connected to a body cavity for forming the body and an opening gate (321) connected to an island/connecting portion cavity (32) for forming the island and the connecting portion.

Abstract: 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.

Abstract: A front end panel (10) is fixed to side members (50) behind crushable zones (51). Due to this structure, most of the impact forces are absorbed by the deformation of a bumper reinforcement (60) and the crushable zones (51) and large impact forces are not transferred to the front end panel (10). Therefore, it is possible to prevent the front end panel (10) 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.

Abstract: An attachment portion between an upper member (11) and a radiator (20) is constructed so as to be displaced in a longitudinal direction of the upper member (11) when an impact force is applied to the upper member (11) by constructing a mount cushion (30) 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 (11) from a front side of a vehicle, as it is not that the radiator (20) and the upper member (11) are deformed together but that the upper member (11) is deformed prior to the radiator (20), 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 (11), compatibility between the requirements of protection of pedestrians and sufficient strength of the upper member (11) can be ensured.

Abstract: A front-end structure comprising a panel body (400) to which a center member (500), 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 (400) is molded out of aluminum by die-casting and a joining section (421) of the panel body (400) to which the center member (500) is joined has a mechanical strength higher than that of any other sections of the panel body (400) near the joining section (421) except the joining section (421).

Abstract: A vent line (440) for establishing communication between the interior of headlamps (500) and at least a blower (300) is formed integrally with a front end panel (400). The vent line (440) makes up a duct member (441) leading from each of the headlamps (500) to the blower (300). A light controller (560) is assembled by being fixed on the panel (400) in such a manner as to be located at the air inlet (442) of the duct member (441) (vent line (440)).

Abstract: When a load given to the engine 100 is less than a predetermined value, the outside air suction port 104 is closed and only inside air is supplied to the engine 100, and the valve 112a is opened so as to supply warm water to the heater 112. When the load given to the engine 100 is not less than the predetermined value and the temperature of air outside the engine compartment 11 is lower than a predetermined value, the inside air suction port 102 is closed and only outside air is supplied to the engine 100, and the valve 112a is closed so that the supply of warm water to the heater 112 is stopped.

Abstract: The radiating section (830) of the control unit (800) is exposed to air flowing in the intake path (710) formed in the panel body (450). Due to the foregoing, it is possible to cool the control unit (800) by air (about 35° C.), the temperature of which is lower than the temperature of air (about 60° C.) which has passed through the condenser (200) and the radiator (100). Accordingly, the cooling effect (cooling capacity) can be enhanced. Therefore, the size of the radiating section (830) can be reduced, and the structure of the control unit (800) (the mounting structure of the electronic parts (810)) can be simplified. As a result, the manufacturing cost of the control unit (800) can be reduced.

Abstract: When the suction opening portion 121 is covered with the decoration grill 300 from the front side of a vehicle, the suction chamber 140 filled with air is formed on the front side of the suction opening portion 121, and the communication passage 141 to connect the suction chamber 140 with the outside of the suction chamber 140 in a direction perpendicular to the longitudinal direction of the vehicle is formed into a labyrinth structure by the decoration grill 300, bumper cover 410 and front end panel 100. 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.

Abstract: The flexible section 452 made of rubber or elastomer is molded integrally with the panel body 450 on the forward end side of the guide duct section 451 of the panel body made of resin, and the seal section 461 for tightly closing gap &dgr; between the panel body 450 and the heat exchanger 21 is molded integrally with the panel body 450 on the introduction opening section 460 side in the panel body 450. Due to the foregoing, it is possible to prevent the panel body 450 and the guide duct section 451 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 450 and the heat exchanger 21 is tightly closed so that a decrease in the heat radiating capacity (heat exchange capacity) of the heat exchanger 21 can be prevented.

Abstract: A front end panel 10 is fixed to side members 50 behind crushable zones 51. Due to this structure, most of the impact forces are absorbed by the deformation of a bumper reinforcement 60 and the crushable zones 51 and large impact forces are not transferred to the front end panel 10. Therefore, it is possible to prevent the front end panel 10 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.