43 results about "Chemical oxygen generator" patented technology

Provided herein is a hybrid system for generating oxygen on-board an aircraft for passengers and / or flight crew to breath. The system includes a first chemical oxygen generator component configured to promptly supply oxygen suitable for breathing upon an emergency situation arising and during an initial descent mode. Heat produced from the exothermic decomposition reactions inherent in several types of chemical oxygen generators can be harvested and feed to a second oxygen generator. The second oxygen generator is a solid electrolyte oxygen separation system that catalytically separates oxygen from air inside specialized ceramic materials at high temperatures, about 650° C. to 750° C., using electrical voltage. The ability to feed heat from the first oxygen generator to the second oxygen generator substantially reduces the lag time until the second ceramic oxygen generator is available to take over as the oxygen supply.

The present invention provides a system and method for supplying, generating, conserving, and managing oxygen that is ideally suited for use on-board an aircraft for supply of breathable oxygen to passengers and flight crew. The system includes several components that together optimize oxygen utilization while reducing costs from maintenance and added weight of traditional pressurized gaseous cylinders. Components of the system include a pressurized cylinder of oxygen enriched gas or a chemical oxygen generator for rapid use in emergency situations, an on-board oxygen generator (OBOG) of the ceramic oxygen generator (COG) type incorporating solid electrolyte oxygen separation (SEOS) technology, a controller, a pulsed oxygen supplier, a crew / passenger breathing mask, and one or more sensors including sensors that detect inhale / exhale phases and communicate with the controller so that flow of oxygen may be regulated for conservation and to adapt to physiological needs.

A chemical oxygen generator includes multiple parallel sequentially connected chemical core sections that extend the duration of operation of the chemical oxygen generator. An end of a first core section is contiguous with a chemical core high reactivity section, and a thermal insulation layer is disposed between an end of a second core section and the chemical core ignition plate, as well as between the bodies of the first and second core sections. A chemical core transition section is disposed between the other end of the first core section and the second core section, to insure that the reaction front propagates properly.

The invention discloses a chemical oxygen generating device. The chemical oxygen generating device comprises a box. A reaction cavity is formed inside the box, a liquid level sensor is arranged on the inner all of the reaction cavity, a discharging opening is formed in the bottom of the box, a first electromagnetic valve is arranged on the discharging opening, an oxygen outlet is formed in the top of the box, a second electromagnetic valve is arranged on the oxygen outlet, and an air pressure gauge is arranged on one side of the oxygen outlet. According to the chemical oxygen generating device, hydrogen peroxide is injected through a feeding opening, pistons are pulled through electric stretchable rods, and the hydrogen peroxide is sucked into piston cylinders and stored, and then is put into a reagent pipe filled with manganese dioxide through the feeding opening; when oxygen needs to be generated, the electric stretchable rods push the pistons to inject the hydrogen peroxide into the reaction cavity, and the hydrogen peroxide is reacted with the manganese dioxide in the reagent pipe; meanwhile, the electric stretchable rods are matched with the pistons, the liquid level height of the hydrogen peroxide in the reaction cavity is changed, the contact area between the hydrogen peroxide and manganese dioxide is changed accordingly, and the oxygen generating rate of the whole device is controlled.