Self-propelled vehicle comprising an onboard equipment supplied with filtered air
View Patent ↗The invention concerns a self-propelled vehicle, in particular an aircraft, comprising an onboard equipment such as an inerting system, means for vapour pollutant filtering ( 1 ) arranged between an air intake ( 8 ) connected to a compressed air source and an air outlet ( 9 ) connected to the equipment. The invention is characterized in that the vapour pollutant filtering means ( 1 ) comprise adsorption filtering means such as molecular sieve and/or activated carbon.
1. A self-propelled vehicle, particularly an aircraft, comprising:
an inerting system based on air separation membranes,
first and second air lines arranged in parallel positioned between an air inlet connected to a compressed air source and an air outlet connected to the inerting system, each of the first and second air lines comprising an associated vapor pollutant filtration means, wherein each of the vapor pollutant filtration means comprise adsorption filtration means of the molecular sieve and/or active carbon type,
at least one particle filtration means positioned between the air inlet and the air outlet,
at least one coalescence filtration means positioned between the air inlet and the air outlet, and
regulating means for selectively regulating the air between the first and second air lines so as to allow the vapor pollutant filtration means of the first air line and the vapor pollutant filtration means of the second air line to operate and be regenerated alternately.
2. The vehicle of claim 1 , wherein the vapor pollutant filtration means, the particle filtration means and the coalescence filtration means are incorporated into one and the same filter or into separate filters.
3. The vehicle of claim 2 , wherein
said at least one particle filtration means comprises first and second particle filtration means positioned upstream of the pollutant vapor filtration means of said first and second air lines, respectively,
said at least one particle filtration means comprises third and fourth particle filtration means postioned downstream of the pollutant vapor filtration means of said first and second air lines, respectively,
said at least one coalescence filtration means comprises first and second coalescence filtration means positioned upstream of the pollutant vapor filtration means of said first and second air lines, respectively,
said at least one coalescence filtration means comprises third and fourth coalescence filtration means postioned downstream of the pollutant vapor filtration means of said first and second air lines, respectively,
the pollutant vapor filtration means of the first air line, the first particle filtration means, the first coalescence filtration means, the third particle filtration means and the third coalescence filtration means are incorporated into a first filter,
the pollutant vapor filtration means of the second air line, the second particle filtration means, the second coalescence filtration means, the fourth particle filtration means and the fourth coalescence filtration means are incorporated into a second filter.
4. The vehicle of claim 1 , wherein:
said at least one particle filtration means comprises first and second particle filtration means,
said at least one coalescence filtration means comprises first and second coalescence filtration means,
said first air line comprises said first particle filtration means and said first coalescence filtration means, and
said second air line comprises said second particle filtration means and said second coalescence filtration means.
5. The vehicle of claim 1 , wherein the particle filtration means and the coalescence filtration means are positioned upstream or downstream of the first and second air lines.
6. The vehicle of claim 1 , further comprising a connecting line connecting a downstream side of the pollutant vapor filtration means of the first air line to the downstream side of the pollutant vapor filtration means of the second air line, the connecting line comprising a calibrated orifice.
7. The vehicle of claim 1 , further comprising selective removal means connected to the filtration means.
8. The vehicle of claim 1 , further comprising:
a first nonreturn valve positioned between the vapor pollutant filtration means of the first air line and the outlet, and
a second nonreturn valve positioned between the vapor pollutant filtration means of the second air line and the outlet.