초록 ▼

An apparatus for producing oxygen enriched air from the atmospheric air, including an oxygen enriching system employing a fan for inducing a flow of atmospheric air through an oxygen enriching unit and a pump for deriving the oxygen enriched air from the oxygen enriching unit, a sound-proof box for

An apparatus for producing oxygen enriched air from the atmospheric air, including an oxygen enriching system employing a fan for inducing a flow of atmospheric air through an oxygen enriching unit and a pump for deriving the oxygen enriched air from the oxygen enriching unit, a sound-proof box for encasing the fan and pump, an air intake passage having not less than five bends and an air exhaust passage also having not less than five bends. The oxygen enriching unit is provided with a unit for adjusting an oxygen concentration to a constant level regardless of any change in the atmospheric temperature.

대표청구항 ▼

A low-noise apparatus for providing oxygen-enriched air to a medical patient, the apparatus comprising: an outer casing means having an intake opening for intaking into said casing a flow of atmospheric air, to exhaust opening for exhausting a first part of the flow of atmospheric air, and a first o

A low-noise apparatus for providing oxygen-enriched air to a medical patient, the apparatus comprising: an outer casing means having an intake opening for intaking into said casing a flow of atmospheric air, to exhaust opening for exhausting a first part of the flow of atmospheric air, and a first outlet port for delivering a second oxygen-enriched part of the flow of atmospheric air to a patient; an oxygen enriching system accommodated in said outer casing means for supplying said second oxygen-enriched part of the flow of atmospheric air to said first outlet port, said oxygen enriching system including oxygen enriching means operable to enrich said second part of said flow of atmospheric air with oxygen, a motor-driven pumping means for causing said second flow of atmospheric air to pass through said oxygen enriching means, piping means for carrying said second part of the flow of air via said pumping means and said oxygen enriching means to said first outlet port, and fan means for causing said flow of atmospheric air generally directed from said intake opening of said outer casing means toward said exhaust opening; soundproof box means defining an impervious-to-sound chamber, said motor-driven pumping means and said fan means being completely accommodated within said chamber, the box means having an inlet port communicating with said intake opening for permitting said atmospheric air to flow into said chamber and a separate outlet port communicating with said exhaust opening for permitting said first part of the flow of atmospheric air to exit from the outer casing means after cooling said motor-driven pumping means and said fan means; elongated air intake passage means formed within said outer casing means for restrictively guiding said flow of atmospheric air from said intake opening to said inlet port, said intake passage means having bends at at least five positions, each of said positions being lined with sound absorbing material; and elongated air exhaust passage means formed within said outer casing means for restrictively guiding said first part of the flow of atmospheric air from said separate outlet port of said soundproof box means to said exhaust opening, said air exhaust passage means having a plurality of partition plates such that the exhaust passage means includes bends at at least five positions, each of said partition plates being lined with sound absorbing material.