Verson hot gas heater

Se kylmäkone elikkäs ilmastointi toimii tuossa Hot Gas toiminnolla toisinpäin (takaperoisesti), eli ulkoilmaa kylmennetään ja sisälle tulevaa ilmaa lämmitetään. Ei siihen pakokaasut liity mitenkään.

Making good use of the air-conditioner yet further, Toyota engineers have incorporated the Hot Gas Heater into the diesel-powered Toyota Corolla Verso, a first for the segment (available only in some countries).

At lower temperatures, like below -8° C, normal air-conditioners fail to deliver a satisfying level of heat, especially in diesel vehicles. For this reason, vehicles built for the coldest European countries are usually available with a combustion heater. However, this equipment drastically increases fuel consumption and emissions, and has a low thermal efficiency, which represents an additional burden on the environment.

In order to solve these problems, Toyota developed the Hot Gas Heater. By adding just an electromagnetic valve with an additional orifice and a hot gas tank to the conventional air conditioner, it is possible to have impressive warming power from 8° C to -30° C. This makes the system much lighter and more compact than a conventional combustion heater. In addition, the Hot Gas Heater thermal efficiency is better, making more efficient use of energy and achieving impressive savings in terms of fuel consumption.

In the new Toyota Corolla Verso, the Hot Gas Heater system received modifications that improved its efficiency for exterior temperatures below -30º C. The system will raise the refrigerant’s pressure by heating it in a storage tank.

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