Drain manifold for air data sensor

Details Drain manifold for air data sensor Drain manifold for air data sensor

B - Operations, Transporting

01

D

73/130, 73/97

B01D 19/00 (2006.01) B01D 53/26 (2006.01) G01L 19/00 (2006.01) G01P 5/17 (2006.01)

Patent

CA 1281209

- 1 - DRAIN MANIFOLD FOR AIR DATA SENSOR BACKGROUND OF THE INVENTION 1. Field of the Invention. This invention relates to a drain manifold for use with air data sensors for aircraft. 2. Description of Prior Art Most existing aircraft require an extensive network of pneumatic lines connecting the pilot and static pressure signals to the tranducers and indicators located in the aircraft. On a large aircraft, this can result in several hundred feet of tubes or line. The problem is aggravated by the fact that the static pressure signals from the right and left hand sides of the aircraft are generally combined in a manifold before the line is directed to the pressure measuring and/or display locations. U.S. Patent No. 3,482,445 to DeLeo et al. discloses a strut mounted dual static tube having sensing ports designed for connection with pneumatic lines to remote instruments. Devices of this type require long lengths of pneumatic line. In addition, Patent No. 3,482,445 does not utilize drainage valves which permit the lines to be drained regardless spatial orientation, which is, a desirable feature. A water trap for a pitot-static system which comprises a separate housing is disclosed in U.S. Patent No. 3,926,594 to Seib et al. The Seib device is designed for connection to remote instruments using substantial lengths of pneumatic line. The device can not be drained in spatial orientations 180 degrees apart and does not utilize drain outlets which permit drainage of a manifold or water trap.

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