SU126236A1 - Dosing pulmonary machine - Google Patents

Description

The invention relates to dispensing devices and serves to automatically maintain a constant oxygen concentration in the gas mixture of the breathing apparatus.

The known pulmonary automata used in breathing apparatus perform only the role of an automatic valve that ensures the supply of oxygen during vacuum in the system or only at the entrance.

The proposed lung machine consists of two main interconnected parts: the automaton and the diffuser (Venturi tube) and differs from the known ones in that it provides breathing in an insulating breathing apparatus with a gas mixture with a constant concentration; her oxygen. This is achieved by installing a venturi in the machine.

When you inhale the gas from the breathing bag enters through the inhalation valve into the venturi and, passing through it, creates a rarefied air; e under the membrane of the pulmonary automaton, which, after bending, opens the oxygen supply valve through a system of levers, as a result of which oxygen is sucked in.

The oxygen drawn in is mixed with the gas coming from the breathing room. The oxygen supply depends on the degree of vacuum created by the venturi, which in turn depends on the pulmonary ventilation.

The device has (see drawing): lid /, adjusting screw 2, spring 3 of diaphragm 4 with rigid center, lower lever 5, upper lever 6, automatic machine valve 7, valve spring 5, bellows 9, bellows spring 10, diffuser 11 , a cone stem 12, a bore adjustment cone 13, a check valve spring M, a rotary valve / 5 and a body of the lung machine 16.

Subject invention

The dosing pulmonary machine for breathing apparatus, consisting of the actual pulmonary machine and the chamber, is excellent with the fact that, in order to ensure a given concentration of oxygen in the gas mixture, it contains a Venturn tube that creates a vacuum, . necessary for oxygen leaks.

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