Oxus Co., Ltd.

Sogang University Research Foundation

Sogang University Industry-university Cooperation Foundation

Seung Kwon Oh

Shin Han

Tae Yong Lee

Kang Han Lee

Seung Hyun Ryu

Hyeon Seong Kim

Yoon Sun Choi

Dong Min Shin

Loren Mitchell Thompson

Tae Soo Lee

Tae-Soo Lee

Hyun Seong Kim

Hyun Jin Cho

Bong Kwan Son

Jee Soo Kwak

Myeong Gu Kim

Sung Hun Ha

Yong Sang Shin

An oxygen supplying apparatus includes: an oxygen enriching module including a plurality of oxygen enriching units; a pressure boosting module which receives the oxygen-enriched gas from the oxygen enriching module and boosts pressure of the oxygen-enriched gas; and a controller controlling operations of the oxygen enriching module and the pressure boosting module. The pressure boosting module includes: a low-pressure tank which receives and stores the oxygen-enriched gas from the oxygen enriching module; a pressure booster which boosts pressure of the oxygen-enriched gas discharged from the low-pressure tank; a high-pressure tank stores the oxygen-enriched gas pressure-boosted by the pressure booster; and at least one bypass valve which is provided to a bypass passage for bypassing a portion of the pressure-boosted oxygen-enriched gas stored in the high-pressure tank to the low-pressure tank to regulate bypassing of the oxygen-enriched gas from the high-pressure tank to the low-pressure tank.

Oxygen supplying apparatus

A nasal cannula according to an embodiment of the present invention includes: an oxygen supplying portion which forms a space inside in which a nose and a mouth of a user can be disposed and is able to supply oxygen in a state of being put on by the user into the nose of the user; and a mask portion to which the oxygen supplying portion is attached in a detachable manner therein and is configured to be put on a face of the user. Since a space in which a nose and a mouth of a user can be disposed is provided inside the oxygen supplying portion so that a user can put on the nasal cannula in a convenient state and the oxygen supplying portion is put on in a state of being supported by the mask portion, oxygen can be supplied into the nose of the user and at the same time external air can be filtered.

Mask-type nasal cannula

A method for determining concentration and pressure of respective gas consisting of multi-gas using emitting and receiving of ultrasound includes: measuring a reference ultrasound flight time; measuring ultrasound flight times at plural concentrations, temperatures and pressures; obtaining an ultrasound flight time table comprising ultrasound flight time change values which are differences between the reference ultrasound flight time, which varies according to parameters of concentration, temperature and pressure, and the measured ultrasound flight time; obtaining an ultrasound amplitude table comprising ultrasound amplitude values of a waveform of a predetermined sequence of the received ultrasound waveform at plural concentrations, temperatures and pressures in a state that concentration, temperature and pressure of the target respective gas are parameters; and calculating the concentration and the pressure of the target gas based on performing temperature compensations for the ultrasound flight time change values and the ultrasound amplitude values.

Method for determining concentration and pressure of respective gas of multi-gas

A gas concentration device according to an embodiment of the present invention includes: an air supplier supplying pressurized air; a plurality of adsorption beds which separate pressurized air supplied from the air supplier into product gas and purge gas by a pressure swing adsorption method and discharge the separated product gas and purge gas; a flow passage regulating valve unit which regulates flow passages so as to allow the pressurized air to be supplied to the adsorption bed from the air supplier and so as to reduce pressure of the adsorption bed so that a nitrogen adsorption process and a nitrogen desorption process are alternately performed; and a pressure boosting unit which is configured to be fed with the purge gas and the product gas discharged from the adsorption bed and is configured to pressurize the product gas in multi-stage sequentially using the purge gas and the product gas.

Gas concentration device

An oxygen concentrating apparatus includes: at least one adsorption bed which is filled with absorbent capable of selectively adsorbing nitrogen relative to oxygen; an air supplier which supplies pressurized air to the adsorption bed; a flow channel regulating valve unit which regulates flow channels by allowing the pressurized air to be supplied to the adsorption bed from the air supplier and by allowing the air to be discharged from the adsorption bed to be depressurized such that a nitrogen adsorption process and a nitrogen desorption process are alternately performed; and a water removing unit which separates water from the pressurized air supplied from the air supplier and removes the separated water. The flow channel regulating unit and the water removing unit are at least partially housed within a single housing.

Oxygen concentrating method and apparatus having condensate water removing function

A high efficiency gas concentrating apparatus includes an air compressor for supplying high pressure air, first and second adsorption towers that are disposed above the air compressor and communicating with the air compressor to adsorb nitrogen and concentrate oxygen as the high pressure air is alternately supplied thereto, first and second concentrating passages that are disposed above the respective first and second adsorption towers to discharge the concentrated oxygen, and a cleaning tank that is disposed between the first and second concentrating passages to receive a portion of the concentrated oxygen from one of the first and second adsorption towers, temporarily store the received concentrated oxygen therein, and alternately remove adsorbed nitrogen by supplying the temporarily concentrated oxygen to the other of the first and second adsorption towers.

High efficiency gas concentrating apparatus and method of controlling high efficiency gas concentrating apparatus

Growing community of inventors

Namyangju-si, South Korea

Seung Kwon Oh