US 2009/0255277 A1 · OPTIMIZED DEFROSTING REGULATION OF PARALLEL ARRANGED FRESH AIR OUTLETS OF AIR CONDITIONERS

Abstract

An arrangement is provided for de-icing pipeline connections of an aircraft, which are connected to all fresh air outlets of an air conditioner, whose construction includes, but is not limited to the functions of multiple turbines and heat exchangers, having a first pipeline, which is connected to a first turbine, and a second pipeline, which is connected to a second turbine, the two pipelines, which are each connected downstream from the two turbines and to which process air is fed at the turbine outlets, being connected at the pipe ends and being continued using a third pipeline. The arrangement is characterized in that a first hot air source is fed hot fresh air from a bleed air system of the aircraft and is connected at its outlet to a fourth pipeline, into which temperature-reduced fresh air is fed from the hot air source. The fourth pipeline is connected at its pipe end to two further valve-regulated pipelines, of which a fifth or a sixth pipeline is connected to the first or the second pipeline, and through which temperature-reduced fresh air is transported and fed valve-regulated to the first and/or second pipeline.

Claims22

Dependent claims

An arrangement for deicing pipeline connections of an aircraft, the arrangement comprising:

fresh air outlets;
a first turbine;
a second turbine
a first pipeline connected to the first turbine;
a second pipeline connected to the second turbine,
wherein the first pipeline and the second pipeline that are each downstream from the first turbine and the second turbine and to which process air is fed at outlets, are connected at pipe ends to and continued by a third pipeline,
wherein a first hot air source is connected at an outlet to a fourth pipeline, to which temperature-reduced fresh air is fed from a hot air source, and the fourth pipeline comprises two further valve-regulated pipelines connected at an pipe end, of which at least one of a fifth pipeline or a sixth pipeline is connected in each case to at least one of the first pipeline or the second pipeline, through which the temperature-reduced fresh air is transported and fed valve-regulated to at least one of the first pipeline or the second pipeline.

4 more elements

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 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.

3 more elements

Dependencies are inferred from the claim text.

Optimized defrosting regulation of parallel arranged fresh air outlets of air conditioners

Life of this patent

Optimized defrosting regulation of parallel arranged fresh air outlets of air conditioners

Life of this patent

Abstract

Claims22