Abstract: An air filter unit has a pleated filter medium with a zigzag shape in which a fibrous filter medium has been folded multiple times. The coefficients of linear expansion of the space-supporting members provided in each of the multiple folded spaces of the pleated filter medium are equal to or greater than the coefficient of linear expansion of the metal filter frame of the filter unit. The linear expansion coefficients of first space-supporting members are smaller than the linear expansion coefficient of a second space-supporting member. The first space-supporting members are provided in side portion regions including both side portions positioned at outermost sides of the pleated filter medium in a second direction perpendicular to the first direction. The second space-supporting member is provided in a central portion region sandwiched between the side portion regions.

Abstract: An object of this invention is to provide an atmosphere-cleaning device for vehicles that is capable of restoring the function of an ozone purifying body carried by a vehicle component. Mud, dust, snow-melting agents as well as SOx and NOx are scattered into the atmosphere as a result of being swirled up by a preceding vehicle or due to weather and climate conditions. When such extraneous substances adhere or the like to an ozone purifying body, the purification sites thereof are clogged and the ozone purification function deteriorates. Therefore, when a predetermined removal implementation condition is established, control is executed to inject cleaning liquid from an injector to enhance the fluidity of the extraneous substances and wash the extraneous substances away. The function of the ozone purifying body can thereby be restored.

Abstract: The invention relates to an air purification device for a vehicle and has an object to provide a DOR (Direct Ozone Reduction) system that can improve durability of activated carbon as an ozone purifier. FIG. 3 is a partially enlarged view of a fin of FIG. 2. FIG. 3(a) is a partial enlarged view of the fin in a front side, and FIG. 3(b) is a partially enlarged view of the fin in a rear side. As shown in FIGS. 3(a) and 3(b), in a louver, a coat amount of activated carbon is adjusted so as to gradually increase from a front side toward a rear side. Thereby, durability as the radiator can be improved, while oxidation degradation of the activated carbon by active oxygen is allowed to some degree.

Abstract: An air-purifying device for vehicles capable of diagnosing function deterioration of an ozone purifier with an inexpensive configuration is provided. At Step 120, applying current to an injector 20 is started. As a result, injection of ammonia from the injector 20 is started. Subsequently, it is determined whether or not i a heat generation amount is more than a predetermined amount A (Step 130). In the case of the heat generation amount>predetermined amount A, it can be determined that there are a large number of pores (fine pores) of activated carbon supporting a deterioration detection substance. In the case of the heat generation amount?predetermined amount A, it can be determined that fine pores have decreased and an ozone purifying function of the activated carbon has deteriorated. Thus, an MIL 30 is lighted (Step 140).

Abstract: The purpose of the present invention is to provide an air-purifying device for a vehicle that uses an ozone purifier including activated carbon. This air-purifying device for a vehicle, provided by the present invention, includes an ozone purifier which includes activated carbon and being disposed on the surface of an on-vehicle component arranged on a portion where an air flow passage is formed while a vehicle is traveling. The ozone purifier is prepared so that the mean pore size of the activated carbon is preferably 10 nm or less so as to be smaller than the mean particle size of the particulate matter from the vehicle.

Abstract: An atmosphere-cleaning device equipped on vehicle and provides a DOR (Direct Ozone Reduction) system including an on-vehicle component on which a new ozone purifier is supported and a method for manufacturing same. A radiator has a core part including an ozone purifier with a particle of an activated carbon as its core and an ozone purification catalyst layer as its shell formed by powder plating process. Ozone can diffuse into the layer and the carbon in this order. Ozonolysis reaction with the sub-catalyst can be initiated in advance to ozonolysis reaction with the carbon thereby gas contact probability with the carbon can be relatively reduced and oxidation reaction of the carbon caused by active oxygen can be suppressed.

Abstract: The present invention relates to a vehicular air cleaner. A DOR (Direct Ozone Reduction) system for suppressing deterioration of a purifying function of an ozone purifying material is provided. Active oxygen is produced by an ozone purifying function of activated carbon. The probability that the active oxygen contacts with a fin of a radiator on a rear surface side is higher than that on a front surface side of the radiator. Accordingly, the activated carbon on the rear surface side of the radiator is easily oxidized as compared with the activated carbon on the front surface side. Therefore, in the fin, a coating amount of the activated carbon on the front surface side of the radiator is adjusted to be larger than a coating amount of the activated carbon on the rear surface side. Thus, the probability that the active oxygen contacts with the activated carbon can be reduced.

Abstract: The present invention has an object to put into practical use an air purification system for a vehicle, which incorporates an ozone purifier formed to contain an activated carbon. The air purification system for a vehicle provided by the present invention includes an ozone purifier that is formed to contain an activated carbon therein and disposed on a surface of a vehicle component disposed at a position at which an air flow path is formed while the vehicle is running. The air purification system for a vehicle also includes a purification inhibitor remover that is disposed upstream of the ozone purifier in the above-described flow path, for removing a component inhibiting purification of ozone by the ozone purifier, from the air flowing into the ozone purifier. The ozone purifier may, for example, be disposed on a radiator and the purification inhibitor remover on a condenser or a sub-radiator.

Abstract: The invention relates to an air purification device for a vehicle and has an object to provide a DOR (Direct Ozone Reduction) system that can improve durability of activated carbon as an ozone purifier. FIG. 3 is a partially enlarged view of a fin of FIG. 2. FIG. 3(a) is a partial enlarged view of the fin in a front side, and FIG. 3(b) is a partially enlarged view of the fin in a rear side. As shown in FIGS. 3(a) and 3(b), in a louver, a coat amount of activated carbon is adjusted so as to gradually increase from a front side toward a rear side. Thereby, durability as the radiator can be improved, while oxidation degradation of the activated carbon by active oxygen is allowed to some degree.

Abstract: An air-purifying device for vehicles capable of diagnosing function deterioration of an ozone purifier with an inexpensive configuration is provided. At Step 120, applying current to an injector 20 is started. As a result, injection of ammonia from the injector 20 is started. Subsequently, it is determined whether or not i a heat generation amount is more than a predetermined amount A (Step 130). In the case of the heat generation amount>predetermined amount A, it can be determined that there are a large number of pores (fine pores) of activated carbon supporting a deterioration detection substance. In the case of the heat generation amount?predetermined amount A, it can be determined that fine pores have decreased and an ozone purifying function of the activated carbon has deteriorated. Thus, an MIL 30 is lighted (Step 140).

Abstract: The present invention relates to a vehicular air cleaner. A DOR (Direct Ozone Reduction) system for suppressing deterioration of a purifying function of an ozone purifying material is provided. Active oxygen is produced by an ozone purifying function of activated carbon. The probability that the active oxygen contacts with a fin of a radiator on a rear surface side is higher than that on a front surface side of the radiator. Accordingly, the activated carbon on the rear surface side of the radiator is easily oxidized as compared with the activated carbon on the front surface side. Therefore, in the fin, a coating amount of the activated carbon on the front surface side of the radiator is adjusted to be larger than a coating amount of the activated carbon on the rear surface side. Thus, the probability that the active oxygen contacts with the activated carbon can be reduced.

Abstract: A vehicle atmosphere purifying apparatus including an ozone purifying body, in which activated charcoal is coated on a core portion of radiators and a capacitor, respectively. If water adheres to pores of activated charcoal or areas surrounding the pores, ozone becomes hard to enter mesopores and micropores. Even if ozone enters, an electron becomes hard to donate from the activated charcoal to the ozone. Consequently, the performance of the activated charcoal decreases while water is adhered thereto. When an amount of moisture adhered to activated charcoal is equal to or greater than a predetermined amount, moisture desorption control is executed that forcibly heats the activated charcoal to a high temperature to desorb the moisture therefrom.

Abstract: An atmosphere-cleaning device equipped on vehicle and provides a DOR (Direct Ozone Reduction) system including an on-vehicle component on which a new ozone purifier is supported and a method for manufacturing same. A radiator has a core part including an ozone purifier with a particle of an activated carbon as its core and an ozone purification catalyst layer as its shell formed by powder plating process. Ozone can diffuse into the layer and the carbon in this order. Ozonolysis reaction with the sub-catalyst can be initiated in advance to ozonolysis reaction with the carbon thereby gas contact probability with the carbon can be relatively reduced and oxidation reaction of the carbon caused by active oxygen can be suppressed.

Abstract: An abnormality diagnosis apparatus for a cooling system includes a cooling portion that is formed in the component of the cooling system and has an internal flow path for flowing a coolant, a non-cooling portion that is formed in the component and has a closed flow path obtained by closing at least a part of the internal flow path, and an abnormality diagnosis portion that performs abnormality diagnosis of the cooling system based on temperature characteristics of the cooling portion and temperature characteristics of the non-cooling portion during flowing of the coolant.

Abstract: The present invention relates to a vehicular air cleaner. It is an object to provide a DOR system which can utilize a purifying function of an ozone purifying element containing an activated carbon for a long period of time. As shown in A1 and A2 of FIG. 5, in the activated carbon at an initial state, an ozone purification rate is almost the same at the same wind velocity even when a temperature condition is different, even though the ozone purification rate is changed when the wind velocity is changed. After the endurance test, the ozone purification rate is increased even at the same wind velocity when the temperature becomes high as shown in B1 and B2 of FIG. 5. Thus, the temperature condition difference affects the ozone purification rate more as the deterioration of the activated carbon continues.

Abstract: An ozone purification body supported on a vehicle component has manganese dioxide and activated carbon as ozone purification components. The mixing ratio (weight basis) of activated carbon and manganese dioxide is 4:1 to 1:4.

Abstract: The present invention relates to an air purification device for vehicles and the purpose of the present invention is to provide a DOR (Direct Ozone Reduction) system which suppresses deterioration in purifying function of the ozone purifier. Ozone purification rate of activated carbon correlates with probability that gas is contacted with the radiator. Also, wind velocity of the gas passing through a radiator correlates with car speed. Therefore, the ozone purification rate of the activated carbon correlates with the car speed, The grill shutter 22 is controlled in fully open condition when the car speed is within an area faster than Speed A shown in FIG. 6. When the car speed is slower than Speed A, the grill shutter 22 is controlled in closed condition as shown in FIG. 2 (A).

Abstract: The present invention relates to an air cleaner for a vehicle. It is an object to provide a DOR system which can favorably suppress deterioration of a function of an ozone purifier containing ozone purifying catalyst and activated carbon. A core part of a radiator 14 includes a fin 20, an activated carbon layer 22, and an ozone purifying catalyst layer 24. The activated carbon layer 22 is made of activated carbon and a binder A for bonding the fin 20 and the activated carbon. The ozone purifying catalyst layer 24 is made of an organometallic complex and a binder B bonding the activated carbon layer 22 and the organometallic complex. The binder B used for the ozone purifying catalyst layer 24 has a larger specific surface area than that of the binder A used for the activated carbon layer 22.

Abstract: The present invention relates to an air-purifying device for a vehicle and an object thereof is to provide a DOR (Direct Ozone Reduction) system which can favorably purify ozone even in a normal temperature range and can suppress decrease in the cooling performance of a radiator caused by coating. The device comprises an on-vehicle component arranged at a spot in contact with the air during travel of the vehicle, and an ozone purifier provided on the on-vehicle component and capable of purifying ozone, wherein the ozone purifier includes at least one of organic metal complexes having manganese, iron, cobalt, nickel, copper, ruthenium, rhodium or palladium as a central metal. The ozone purifier preferably includes activated carbon.

Abstract: The purpose of the present invention is to provide an air-purifying device for a vehicle that uses an ozone purifier including activated carbon. This air-purifying device for a vehicle, provided by the present invention, comprises an ozone purifier which includes activated carbon and being disposed on the surface of an on-vehicle component arranged on a portion Where an air flow passage is formed while a vehicle is traveling. The ozone purifier is prepared so that the mean pore size of the activated carbon is preferably 10 nm or less so as to be smaller than the mean particle size of the particulate matter from the vehicle.