Electronically compensated pressure dilution demand regulator

Details Electronically compensated pressure dilution demand regulator Electronically compensated pressure dilution demand regulator

1985-10-28

1987-03-10

Husar, Stephen F.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820426, 12820429, 137 811, A62B 700

Patent

active

046483977

ABSTRACT:
The present invention relates to a dilution control oxygen regulator for providing a desired oxygen concentration at different altitudes and pressures. Two valves supply oxygen and air to a recipient's mask. A pressure transducer in the mask measures suction pressure which is compared with a prescribed pressure command signal for a particular altitude to produce a pressure error. The error signal is compensated by a proportional-plus-integral controller, and is biased between the two gas valves proportional to an oxygen concentration schedule which prescribes a desired oxygen concentration percentage based on altitude. The biased and compensated error signal is used as valve opening displacement commands for establishing desired valve opening areas. A feedback loop around the electromechanical valve actuator means improves the stability and accuracy of valve settings.

REFERENCES:
patent: 2897833 (1959-08-01), Seeler
patent: 3875957 (1975-04-01), Veit et al.
patent: 4121578 (1978-10-01), Torzala
patent: 4274404 (1981-06-01), Molzan et al.
patent: 4340044 (1982-07-01), Levy et al.
patent: 4355735 (1982-06-01), Cramer et al.

Affiliated with

Also associated with

Rating

Electronically compensated pressure dilution demand regulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronically compensated pressure dilution demand regulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronically compensated pressure dilution demand regulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1016283