Brief Description of the Drawings
Further features and advantages of the present invention will become apparent from the following detailed description, taken in combination with the appended drawings, in which:
Figure 1 shows a schematic cross sectional view through the body of an aircraft, showing components of an air handling system in accordance with an embodiment of the present invention;
Figure 2 is an enlarged partial cross section illustrating a portion of the embodiment of Figure 1 in greater detail;
Figure 3 is a schematic diagram illustrating the operation of the present invention during normal cruising flight;
Figure 4 is a schematic diagram illustrating the operation of the present invention during taxi and ascent;
Figure 5 is a schematic diagram illustrating the operation of the present invention during descent from cruising altitude and taxi after landing;
Figure 6 is a schematic diagram illustrating the operation of the present invention during ground purging of the system;
Figure 7 is a schematic diagram illustrating the operation of the present invention during an in-flight fire event;
Figure 8a shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of a ventilation air sample taken in a jet transport aircraft during flight (Temperature approximately 20C);
Figure 8b shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of an envelope air sample taken in a jet transport aircraft on the ground at approximately 35C;
Figure 9a shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of a head space sample of a jet engine lubricating oil at 100C;
Figure 9b shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of a head space sample of a jet fuel at 90C;
Figure 9c shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of a head space sample of an aircraft hydraulic fluid at 90C;
Figure 9d shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of a head space sample of a general purpose cleaner used in aircraft at 90C.
Figure 9e shows a gas chromatography/mass spectrometry (GC/MS) analysis plot of a head space sample of an anti-corrosion treatment sprayed on metal surfaces in the envelope (- 5C).
It will be noted that throughout the appended drawings, like features are identified by like reference numerals.
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