Toyota Jidosha Kabushiki Kaisha

Hiroaki Katsumata

Kazuhiro Sugimoto

Yoshihisa Shinoda

Koichi Hoshi

Ippei Fukutomi

Kayoko Takada

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 Aand Aof FIG., in the activated carbon at an initial state, an ozone purification rate is almost the same as 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 Band Bof FIG.. Thus, the temperature condition difference affects the ozone purification rate more as the deterioration o the activated carbon continues.

Vehicular air cleaner

A vehicle atmosphere purifying apparatus including an ozone purifying body, in which activated charcoal is coated on a core portion of radiators and a condenser, 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.

Vehicle atmosphere purifying apparatus

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.is a partially enlarged view of a fin of FIG.. FIG.() is a partial enlarged view of the fin in a front side, and FIG.() is a partially enlarged view of the fin in a rear side. As shown in FIGS.() and(), 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.

Air purification device for vehicle

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.

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.

Growing community of inventors

Susono, Japan

Hiroaki Katsumata