摘要:
A vehicle provided with an internal combustion engine and an air conditioning system for a vehicle passenger cabin. A condenser of the air conditioning system is arranged in front of a radiator of the engine in an engine compartment of the engine. A duct is arranged between the condenser and the radiator for preventing the air passing the radiator from being returned forward P. A first damper, which is normally closed is provided in the duct, but is opened when the engine temperature is high to provide a flow of air, by-passing the condenser, directly into the radiator.
摘要:
The condenser is mounted in front of radiator by means of a mounting shroud, which includes a tubular portion for covering over an outer periphery of the condenser, a pair of vertical mounting walls provided on an inner periphery of the tubular portion, and a pair of mounting leg portions formed on an outer periphery of the tubular portion. The vertical mounting walls are securely fastened to upper and lower brackets of the condenser in a condition wherein the former contact with the latter, and the lower mounting leg portions are fitted in engaging recesses of a lower tank of the radiator while the upper mounting leg portions are securely fastened to an upper tank of the radiator. The tubular portion of the mounting shroud serves also as a wind introducing duct which prevents heated air having passed the radiator from coming around to the front of the condenser again.
摘要:
A cooling apparatus for use in a vehicle is provided in which the cooling water of the water-cooled internal combustion engine is guided into a first portion of the radiator and the cooling water of another water-cooled apparatus such as a water-cooled innercooler of a super charger is guided into a second portion of the radiator. The first radiator portion and the second radiator portion can be selectively fluidly connected so that cooling water from one radiator portion can assist cooling in the other radiator portion.
摘要:
According to the present invention, coolant temperature Tw after an engine has stopped is detected by a coolant-temperature sensor. An amount of temperature rise .DELTA.Tw is calculated from a temperature difference between the present coolant temperature (Tw) and the previous coolant temperature (Tw-1). It is determined on the basis of the amount of temperature rise .DELTA.Tw whether coolant temperature after the engine has stopped has reached a substantially maximum temperature. Specifically, the amount of temperature rise .DELTA.Tw and a set amount of temperature rise .DELTA.T which has been set in advance are compared, and in a case where .DELTA.Tw>.DELTA.T, temperature rise is large and coolant temperature is still rising. Therefore, recovery of coolant is not performed. When .DELTA.Tw.ltoreq..DELTA.T, the amount of temperature rise is small and the present temperature is substantially the maximum temperature, and an electrical pump is operated to recover coolant. In this way, it is possible to recover a higher-temperature coolant into insulated container after the engine has stopped.
摘要:
A double heat exchanger includes a condenser having a condenser core and a condenser header tank, and a radiator having a radiator core and a radiator header tank. The condenser header tank is composed of a core plate having clamping portions and a tank portion having protruding portions. The protruding portions of the tank portion are clamped by the clamping portions of the core plate so that the tank portion is connected to the core plate in the condenser header tank. The protruding portions of the condenser header tank contacts the radiator header tank, thereby preventing the condenser and radiator header tanks from being inclined toward each other. Therefore, the condenser and radiator header tanks contact and are brazed to each other in a relatively small area. As a result, heat conduction from the radiator to the condenser is prevented, and heat exchange performance of the condenser can be improved.
摘要:
A powder coating booth a function of supplying air though its ceiling. Sidewalls of the booth is formed from an insulating material or a semiconductor. A belt conveyor is disposed at the bottom of the booth. An electric field is formed so that it extends from a paint gun to the conveyor belt. The majority of oversprayed powder paint produced during painting becomes attached to the upper surface of a portion of the conveyor belt, is carried, together with this belt portion, to the outside of the booth, and is recovered from the conveyor by a blowing-type of static eliminator, thereby minimizing the mount of oversprayed powder paint mixed in an exhaust of the booth drawn through the sidewall.
摘要:
A ratio (Nc/Lc), in a condenser core portion, of the number of louvers to a width of a condenser cooling fin, and a ratio (Nr/Lr), in a radiator core portion, of the number of louvers to a width of a radiator cooling fin satisfy that the ratio in one core portion, out of the condenser and the radiator core portions, a required radiation amount of which is larger than that of the other core portion is larger than the ratio in the other core portion. Thus, in the core portion having a small required radiation amount, the number of louvers relative to the width of the cooling fin is small thereby decreasing the heat transfer ratio. However, by this, the air flow resistance in this core portion decreases thereby increasing an air flow amount. Thus, the radiation amount of the core portion of which required radiation amount is large increases.