摘要:
A cooling system for an aircraft includes an air inlet through which air from the environment of the aircraft enters a ram air channel, and an air outlet through which air emerges from the ram air channel. A heat exchanger is arranged in the ram air channel. A ventilation device is in fluid communication with the ram air channel. Also connected to the ram air channel is a distribution line to cool at least one heat-loaded component of the aircraft, in particular a cabin air conditioning system, and/or to ventilate an installation space of the at least one heat-loaded component.
摘要:
The present invention relates to process to prepare a polymer by an aqueous emulsion or suspension polymerisation process wherein a monomer mixture is polymerised in the presence of a free radical initiator and a stabiliser, to the emulsion and redispersible polymer powder obtainable therewith, and to the use of this emulsion and powder in a building material composition, in particular to hydrophobise the building material composition, wherein the monomer mixture comprises (i) 0.5-80 wt. % of biomonomers containing an ester of a polyol and at least one fatty acid, the polyol having 2 to 10 hydroxy groups, and at least one vinyl group; (ii) 20-99.5 wt. % of vinyl monomers chosen from the group of vinyl esters, (meth)acrylic esters, vinyl aromatic compounds, vinyl halides, and olefins; and (iii) 0 to 20 wt % of vinyl monomers that are different from monomer (ii) and contain at least one functional group chosen from the group of alkoxysilane, glycidyl, epoxy, epihalohydrin, nitrile, carboxyl, amine, ammonium, amide, imide, N-methylol, isocyanate, hydroxyl, thiol, keto, carbonyl, acid anhydride, aceto acetonate, sulfonic acid groups, and salts thereof, and the stabiliser comprises (a) 50 to 100 wt. % of a protective colloid; and (b) 0 to 50 wt. % of an emulsifier.
摘要:
A device for temperature control in an aircraft cabin includes a first supply control arrangement and a first pressure control arrangement. The first supply control arrangement includes an air duct and a valve arrangement that controls a supply of heated air delivered to a first temperature area of the aircraft cabin such that a first specified temperature for the first temperature zone is achieved. When the valve arrangement fails, the first pressure control arrangement operates to control a pressure of heated air supplied into the first temperature area such that the first specified temperature for the first temperature zone is achieved.
摘要:
The present application describes an arrangement and a method for utilizing the heat of waste air for heating the bilge area of aircraft, wherein the bilge area is connected to a heat transfer unit via a first air supply pipe, through which a bilge air flow drawn in from the bilge area flows into the heat transfer unit, wherein the heat transfer unit comprises a second air supply pipe, through which a waste air heat flow to be cooled that is created at another location in the aircraft flows into the heat transfer unit in order to heat the drawn-in bilge air flow, wherein the heat transfer unit comprises a first air discharge pipe, through which the cooled waste air heat flow is discharged, and a second air discharge pipe with a bilge inlet section, and wherein at least a portion of the heated bilge flow is returned to the bilge area via the air discharge pipe and the bilge inlet section.
摘要:
This invention relates to a powder comprising a carrier material which is in powdery form and selected from the group consisting of a water-soluble polymer, a water-insoluble polymer, and an inert inorganic material, and a mixture containing at least about 5 wt. % of a compound having the formula (1-a) and at least about 5 wt. % of a compound having the formula (1-b), HO—(R2O)m—H (1-a), R1aO—(R2aO)n—H (1-b). Claimed also are a process to make the powder, its use, as well as a dry mortar formulation containing the same.
摘要:
The invention relates to a window glazing comprising at least two window panes with an intermediate ventilated space arranged therebetween, wherein at least one window pane is provided with a layer which is arranged on the interior side therefore and whose transmission is controllable. More specifically, said invention relates to a multilayer glazing comprising corresponding intermediate spaces in which a sweeping gas circulates, wherein said sweeping gas consists of a mixture of air and other gaseous components in which the sweeping gas content is adjustable.
摘要:
The present invention provides an air intake valve for an aircraft and a method for the production of an air intake valve. The air intake valve has an opening region for letting ambient air through into a fuselage inner region of the aircraft and a flap for opening and closing the opening region, the opening region and the flap each having a shape which is capable of forming air vortices on edges of the opening region when ambient air flows through the air intake valve.
摘要:
A ram-air duct (10) includes a ram-air inlet duct (20) and a ram-air outlet duct (30) arranged downstream of the ram-air inlet duct (20) and in fluid communication with the ram-air inlet duct (20). At an inlet (22) of the ram-air inlet duct (20) a movable element is arranged and adapted to set an inlet parameter (E) of the inlet (22). At an outlet (32) of the ram-air outlet duct (30) a movable element is arranged and adapted to set an outlet parameter (A) of the outlet (32). The outlet parameter (A) and the inlet parameter (E) are linked together by a function (ƒ), so that an outlet parameter (A) corresponding to a value (f(E)) of the function (ƒ) is assigned to each inlet parameter (E).
摘要:
A ram air outlet duct (10) for removing air from an aircraft includes a ram air outlet duct wall (20) bounding an interior (16) of the ram air outlet duct (10), a ram air outlet (12), and a ram air outlet duct flap (22) for adjusting a flow cross-section of the ram air outlet (12). To minimise additional drag caused by the ram air outlet duct (10) when it is mounted in an aircraft and the aircraft is flying, a flap area of to the ram air outlet duct flap (22) is smaller than a cross-sectional area of the ram air outlet (12) and/or the ram air outlet duct wall (20) has a rounded shape in a section (26) adjoining the ram air outlet (12).
摘要:
A cooling system (10) for the cooling of heat producing devices (44, 46, 48) in an aircraft is designed with a central cold producing device (12), at least one cold consumer (44, 46, 48) and a cold conveyance system (14) which connects the cold producing device (12) and the cold consumer (44, 46, 48). With this cooling system, the cold conveyance system (14) has at least one cooling circuit which supplies a cooled cold carrier medium from the cold producing device (12) to at least one cold consumer (44, 46, 48) and brings this back to the cold producing device (12), so that at least one cold consumer (44, 46, 48) is supplied with the cold produced in the cold producing device (12) by means of the cold carrier medium circulating in the cooling circuit.