Abstract: An air guiding unit has a shroud having a vent hole, an air guiding duct, and a valve housed in the air guiding duct. A radiator, an engine cooling heat exchanger, and a blower are fixed to the shroud. The shroud guides an air flowing into an engine room from an engine room opening and passing through the radiator and the engine cooling heat exchanger. The air guiding duct has a first opening, which is connected to the vent hole of the shroud, and a second opening, which is open in the engine room toward a rear space defined on a rear side of the engine. The air guiding duct therein has a duct interior channel through which the air flows between the first opening and the second opening. The valve is configured to increase and decrease an opening degree of the duct interior channel.

Abstract: A tank has a tank body defining a passage therein, a plate to which tubes are attached, and an intermediate plate. The tank body has a space defining part and a tank junction part attached to the intermediate plate. A longitudinal direction and a stacking direction of the tubes are perpendicular to a width direction. The space defining part has two end parts facing each other in the width direction and connecting to two of the tank junction part respectively. The tank body has a junction end surface that has an arc shape protruding toward the passage. The intermediate plate has a part corresponding to the junction end surface and being provided with a receiving surface that has an arc shape fitting the arc shape of the junction end surface. The receiving surface is attached to the junction end surface.

Abstract: A cooling device for an automobile that includes a front opening opened in a front engine room, a first air blower arranged in the front engine room on a front side of a drive engine, and an introduction passage for guiding, toward the first air blower, air to flow from the front side of the front opening through the front opening is configured to cool the drive engine with the air flow passing from the introduction passage to the drive engine via the first air blower. The cooling device includes a duct having a first opening opened in the introduction passage and a second opening opened to rear of the drive engine in the front engine room, to form an air passage for air to flow between the first opening and the second opening.

Abstract: An air guiding unit has a shroud having a vent hole, an air guiding duct, and a valve housed in the air guiding duct. A radiator, an engine cooling heat exchanger, and a blower are fixed to the shroud. The shroud guides an air flowing into an engine room from an engine room opening and passing through the radiator and the engine cooling heat exchanger. The air guiding duct has a first opening, which is connected to the vent hole of the shroud, and a second opening, which is open in the engine room toward a rear space defined on a rear side of the engine. The air guiding duct therein has a duct interior channel through which the air flows between the first opening and the second opening. The valve is configured to increase and decrease an opening degree of the duct interior channel.

Abstract: A cooling device for an automobile that includes a front opening opened in a front engine room, a first air blower arranged in the front engine room on a front side of a drive engine, and an introduction passage for guiding, toward the first air blower, air to flow from the front side of the front opening through the front opening is configured to cool the drive engine with the air flow passing from the introduction passage to the drive engine via the first air blower. The cooling device includes a duct having a first opening opened in the introduction passage and a second opening opened to rear of the drive engine in the front engine room, to form an air passage for air to flow between the first opening and the second opening.

Abstract: A tank has a tank body defining a passage therein, a plate to which tubes are attached, and an intermediate plate. The tank body has a space defining part and a tank junction part attached to the intermediate plate. A longitudinal direction and a stacking direction of the tubes are perpendicular to a width direction. The space defining part has two end parts facing each other in the width direction and connecting to two of the tank junction part respectively. The tank body has a junction end surface that has an arc shape protruding toward the passage. The intermediate plate has a part corresponding to the junction end surface and being provided with a receiving surface that has an arc shape fitting the arc shape of the junction end surface. The receiving surface is attached to the junction end surface.

Abstract: Each tube and a corresponding fin satisfy all of the following relationships: Lp?t?0.03Tr+0.22; Lp?t?0.115Tr2?1.14Tr+2.35; and Lp?t?5Tr2?8.3Tr+3, where Lp denotes a width of a sub-passages, Tr denotes a refrigerant passage height, and t denotes a plate thickness of the fin. The amount of a brazing material, which is present through an entire extent of the width of the sub-passage, is set to satisfy a relationship of 0.005?S/L<0.5, where S denotes a size of a cross-sectional area of the brazing material, and L denotes a length of a center line of a corresponding portion of the fin, which is present through the entire extent of the width of the sub-passage.

Abstract: Each tube and a corresponding fin satisfy all of the following relationships: Lp?t?0.03Tr+0.22; Lp?t?0.115Tr2?1.14Tr+2.35; and Lp?t?5Tr2?8.3Tr+3, where Lp denotes a width of a sub-passages, Tr denotes a refrigerant passage height, and t denotes a plate thickness of the fin. The amount of a brazing material, which is present through an entire extent of the width of the sub-passage, is set to satisfy a relationship of 0.005?S/L<0.5, where S denotes a size of a cross-sectional area of the brazing material, and L denotes a length of a center line of a corresponding portion of the fin, which is present through the entire extent of the width of the sub-passage.

Abstract: A communication system is provided which allows synchronous devices in different synchronous communication networks to have synchronous communications with one another via an asynchronous communication network. In the communication system of the present invention, a master communication device generates a master clock based on a reference clock which is provided by a clock supplier. The master communication device sends a synchronization information frame, which contains information about the generated master clock, to plural slave communication devices via the asynchronous communication network. The slave communication devices each reproduce the master clock from the received synchronization information frame.

Abstract: A heat exchanger has tubes stacked in a direction and constructed of plate members. Each tube includes a main part for defining a passage of an internal fluid therein and a joined part that is provided by joining portions of the plate member to have surface contact. The joined part projects from an upstream end of the main part with respect to a flow of an external fluid. The joined part includes an inclined portion that is bent at a predetermined angle relative to a reference plane that is perpendicular to the direction in which the tubes are stacked.

Abstract: A communication system is provided which allows synchronous devices in different synchronous communication networks to have synchronous communications with one another via an asynchronous communication network. In the communication system of the present invention, a master communication device generates a master clock based on a reference clock which is provided by a clock supplier. The master communication device sends a synchronization information frame, which contains information about the generated master clock, to plural slave communication devices via the asynchronous communication network. The slave communication devices each reproduce the master clock from the received synchronization information frame.

Abstract: There is provided a music distribution method capable of performing high-security music data distribution at high speed through the internet or other such network, wherein music data is divided into insufficient data and add-on data (step S101), the insufficient data, a restoration program and a communications program are written in a read-only fashion into a ROM section of a medium and the medium is distributed (steps S110-104), then the add-on data and such are distributed through the internet or the like (step S105) to be recorded into a RAM section of the medium and the music data is restored, producing a result that music may be regenerated on a terminal device.

Abstract: There is provided a method of connecting to a network such as the internet, having good operability for a user. When the user sets a medium into a personal computer, a central processing unit of the personal computer reads a booting program, an OS, various applications and a network connection program for connecting to the internet or the like which have been written into a ROM unit and RAM unit of the medium, then boots these and connects to the network such as the internet. Data downloaded from the connecting destination is written to the RAM unit of the medium and used locally.