摘要:
A cooling module includes a heat exchanger, a blower, a fan shroud and an air cleaner unit for filtering air to be introduced into an engine of a vehicle. The fan shroud holds the blower on a downstream side of the heat exchanger with respect to a flow of air passing through the heat exchanger and has an air introducing portion defining an air passage from the heat exchanger to the blower. A front end of the air cleaner unit is offset from the heat exchanger with respect to a horizontal direction. A side wall of the air cleaner unit partly forms the air introducing portion. A clearance is provided between the side wall and the heat exchanger such that air upstream of the heat exchanger is conducted toward a position downstream of the heat exchanger through the clearance.
摘要:
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.
摘要:
An exhaust gas heat exchanger has a tank, laminated exhaust gas tubes where the exhaust gas flows, a cooling water inlet pipe and a cooling water outlet pipe. The cooling water flows into the tank and flows through water passages between adjacent exhaust gas tubes and between an inner wall of the tank and an outermost exhaust gas tube. Ribs are formed on the exhaust gas tubes so as to lead the cooling water after colliding with an inner wall toward an upstream side of the exhaust gas tubes to prevent the cooling water from being stuck. Otherwise, spaces between an inner wall of a casing and the exhaust gas tubes are regulated to keep the flow rate of the cooling water in the casing so that the cooling water is prevented from being boiled locally by slow flow rate of the cooling water.
摘要:
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.
摘要:
A cooling device boiling and condensing refrigerant includes a refrigerant tank having a boiling space in which a part of liquid refrigerant is boiled and vaporized to gas refrigerant by absorbing heat from a heat-generating member, first and second radiators disposed at upper and lower parts of the refrigerant tank, defined by a liquid refrigerant surface within the refrigerant tank, and a connection pipe connecting the first and second radiators. The first and second radiators have the same shape, and are disposed to cool and condense gas refrigerant from the boiling space. In the cooling device, even when the cooling device is used in a normal state or a vertically reversed state, sufficient radiating performance of the first and second radiators can be obtained.
摘要:
A cooling device boiling and condensing refrigerant includes a refrigerant tank having a boiling space in which a part of liquid refrigerant is boiled and vaporized to gas refrigerant by absorbing heat from a heat-generating member, and a radiator having a header through which gas refrigerant from the boiling space flows into plural tubes connected to the header. One end of the header is inserted into the refrigerant tank, and the inserted end portion of the header has a communication port communicating with the boiling space through a gas refrigerant outlet. The communication port has a lower end at the same position as a lower end of the gas refrigerant outlet. Further, the tubes are inserted into the header to have opened ends within the header, and each lower end of the opened ends of the tubes is set at a position higher than the lower end of the communication port and the lower end of the gas refrigerant outlet. Thus, the cooling device prevents liquid refrigerant from flowing into the tubes from the opened ends in the header.
摘要:
A cooling apparatus includes a refrigerant tank containing boiling and condensing refrigerant and a radiator for cooling the refrigerant. The radiator is connected to the refrigerant tank on a front surface thereof, and hot objects to be cooled are attached to a heat-receiving surface formed on a rear surface of the refrigerant tank. The refrigerant is circulated in the apparatus so that the refrigerant is vaporized in the refrigerant tank and condensed in the radiator. The radiator is connected to the refrigerant tank by inserting a pair of header tanks thereof into the refrigerant tank. The insertion length is controlled to obtain good heat conductivity between the radiator and the refrigerant tank and to avoid deformation of a radiator fin contacting the refrigerant tank. Holes for mounting a substrate carrying the hot objects may be made on enlarged portions of a cover plate closing the refrigerant tank. The heat-receiving surface may be elevated from the rear surface of the refrigerant tank to avoid interference between other components mounted on the substrate and the rear surface of the refrigerant tank.
摘要:
A method for spraying starting material particles in a continuous hydrothermal reaction, comprising spraying an aqueous fluid pressurized and heated in excess of the saturated vapor temperature and a starting material slurry pressurized at ordinary temperature. A starting material slurry feed orifice is provided in a central portion of an aqueous fluid spray orifice to spray and mix the aqueous fluid and the staring material slurry. In order to avoid entry of heat into the starting material fluid from the aqueous fluid, a heat-insulating layer is provided between feed paths for the respective two fluids. According to the above method, the starting material slurry is sprayed particularly under subcritical to supercritical conditions beyond the saturated vapor temperature to form fine particles without agglomeration thereof, whereby a hydrothermal reaction can be continuously and efficiently effected.
摘要:
A metallic workpiece has a to-be-ironed section to be shaped by means of a punch member. The to-be-ironed section is ironed by moving the punch member in a first direction with a side face of the punch member pressed against the surface of the to-be-ironed section and then moving the punch member in a second direction opposite to the first direction. The to-be-ironed section has a front end situated on the front side with respect to the moving direction of the punch member when the punch member moves in the second direction. Before the workpiece is ironed, a gentle slope for preventing burrs, continuous with the front end of the to-be-ironed section, and a bevel portion are formed on the workpiece. A tilt angle between the gentle slope and a line extending along the surface of the to-be-ironed section is at about 30.degree.. The angle of the bevel portion is at 45.degree. or thereabout. Secured between the gentle slope and the side face of the punch member is a gap, which absorbs a distortion of the metallic structure of the surface portion of the to-be-ironed section formed on the side of the front end thereof as the punch member moves in the second direction.
摘要:
A fluid transfusing device and method of control therefor includes a plurality of pump driving portions and a microprocessor. Each pump driving portion is for driving a pump, and the microprocessor controls the pump driving portions. The microprocessor executes a fluid transfusing device control program, and interrupts the fluid transfusing device control program upon receiving a pump interrupt. The microprocessor then executes a pump driving interrupt module. When the microprocessor executes the pump driving module, the microprocessor generates a pump driving pulse to control a pump driving portion associated with the pump corresponding to the pump interrupt, determines receipt of another pump interrupt corresponding to a another pump, and generates a pump driving pulse to control a pump driving portion associated with the another pump corresponding to the another pump interrupt. Determining the receipt of another pump interrupt and generating another pump drive pulse without exiting the pump driving interrupt module, prevents undue delay in processing the another pump interrupt. Consequently, the pump drive portions, which are motors, do not disengage or stop due to delay in receiving pump drive pulses.