Aircraft fluid drop system

Details Aircraft fluid drop system Aircraft fluid drop system

1992-06-15

1994-06-14

Mitchell, David M.

Fire extinguishers

Processes

169 53, 244136, 222 55, A62C 3100, B64D 116

Patent

active

053201850

ABSTRACT:
A fluid drop system for an aircraft for use in firefighting is described The preferred embodiment uses electronic control circuitry coupled with a hydraulic controller that opens and closes the fluid tank's door panels to rate-control fluid drops based on fluid volume remaining in the tank. The circuitry produces a command generated drop rate profile based upon manual drop rate and drop fraction selector controls. It does so by constant comparison of the instantaneous volume of fluid remaining in the tank with a predetermined, desired instantaneous remnant volume in accordance with a defined, declining-volume profile, e.g. one defining a constant drop rate. A stabilized feedback control circuit ensures that, at any instant of time, the opening in the tank's door panels releases a volume of fluid that will maintain the remnant tank volume equal to the desired tank volume. Such variable forces on the fluid as inertia, acceleration, declining mass and splashing automatically are compensated for by the feedback-based fluid drop rate control circuitry. External variables such as aircraft groundspeed, heat intensity, etc. may be taken into account, thereby to render highly controllable and accurate fluid drops for effective and efficient fire fighting operations.

REFERENCES:
patent: 3598342 (1972-08-01), Hawkshaw
patent: 3754601 (1973-08-01), Linkewich
patent: 3901467 (1975-08-01), Hawkshaw
patent: 4382568 (1983-05-01), Schertz
patent: 4545403 (1985-10-01), Vischer et al.
patent: 4671472 (1987-06-01), Hawkshaw
patent: 4936389 (1990-06-01), MacDonald et al.
The Automatic Throttle Hose--A Device to Keep Reservoir Discharges Constant, German Journal Wasserwirtschaft, No. 12, 1979, German Language.

Affiliated with

Also associated with

Rating

Aircraft fluid drop system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aircraft fluid drop system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aircraft fluid drop system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1241976