Patent ID: 8480028

Claim:
A method for regulating a process air temperature of transported process air in pipeline connections of an aircraft, in which the pipeline connections guiding the process air are connected to a fresh air outlet, an air conditioner, a turbine, or a heat exchanger, wherein the process air being provided at the outlet of a first turbine and a second turbine to the pipeline connections and the process air subsequently being fed under pressure respectively to a first pipeline and a second pipeline connected downstream from the first turbine and the second turbine, a first steps comprises the steps of: a) firstly a hot air source is fed hot fresh air from a bleed air system of an aircraft, temperature-reduced pressurized fresh air is provided at the outlet of a first hot air source, which is fed to a fourth pipeline connected at the outlet of the first hot air source and is transported through the pipeline, b) introducing a temperature-reduced fresh air into a fifth pipeline and a sixth pipeline connected at a pipe end of the fourth pipeline; c) continuing support through these two pipelines with a fresh air component of the temperature-reduced fresh air branched off respectively from the fifth pipeline and the sixth pipeline; d) leaving the fifth pipeline and the sixth pipeline valve-regulated by at least one of a first air flow regulating valve and a second air flow regulating valve adapted for regulating an air mass flow of the temperature-reduced fresh air and alternately fed into at least one of the first pipeline or the second pipeline in addition to the process air, and e) occurring an air transport with mixed process air through a remaining pipeline section, which follows a feed point according to step d) and remains in the first pipeline and the second pipeline; f) feeding into a third pipeline continued at the pipe end of the first pipeline and the second pipeline and supplied to downstream units of the aircraft connected to the third pipeline, wherein at least one of the first air flow regulating valve and the second air flow regulating valve is regulated such that the process air temperature between cooling and de-icing temperature ranges in the first pipeline and the second pipeline is switched in a time delayed manner consecutively without affecting the output temperature of the third pipeline.