Helicopter deicer control system

Details Helicopter deicer control system Helicopter deicer control system

1979-02-05

1981-09-29

Albritton, C. L.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219486, 219493, 219202, 219506, 307 39, 307 41, 244134D, 244134R, H05B 302

Patent

active

042925029

ABSTRACT:
A helicopter deicing control system (10) is provided for selectively distributing D.C. electrical power to a plurality of deicing segments (80, 90) on main and tail rotor blades with only two slip-ring assemblies (60 and 61, 62 and 63) for each rotor drive shaft. A power distribution controller (20) receives electrical power from the helicopter's onboard, fixed electrical power system and provides an output signal including power and control D.C. electrical signals of opposite polarities. A distributor (70) receives the output signal from controller (20) and increments a rotary switch (74) upon receipt of a D.C. electrical control signal, and distributes power to the main rotor deicing segment (90) connected to the rotary switch (74) contact then engaged upon the receipt of a D.C. electrical power signal so as to sequentially deliver D.C. electrical power to the desired main rotor deicing segment.
Controller (30) includes provisions for individually preselecting the operating time for each deicing segment (80, 90), testing the operation and providing a continuous visual indication of the operational status of deicing control system (10).

REFERENCES:
patent: 3002718 (1961-10-01), Hackenberger, Jr.
patent: 3183975 (1965-05-01), Keen
patent: 3420476 (1969-01-01), Volkner et al.
patent: 3657514 (1972-04-01), Adams
patent: 3984699 (1976-10-01), Baily
patent: 4010412 (1977-03-01), Forman
patent: 4036457 (1977-07-01), Volkner et al.

Affiliated with

Also associated with

Rating

Helicopter deicer control 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 Helicopter deicer control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helicopter deicer control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1235297