US 6,712,886 B2Granted

Air purification device for automobile with oxygen-supplying function

OwnerOh-Young Kiminventor

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Abstract

An air purification device has an oxygen-supplying function, in which air in an automobile is sucked by a vacuum pump and purified by a dust collector or an adsorbent such as activated carbon and zeolite, and oxygen is enriched in air to supply oxygen enriched air into the automobile. The air purification device enriches oxygen in air according to a VSA (vacuum swing adsorption) process using a difference between pressure in the adsorption bed and atmospheric pressure, in which nitrogen adsorbed into the adsorbent is release using the vacuum pump. The air purification device has an air filter for removing impurities from air sucked from an inside of the automobile by the vacuum pump, an adsorbent for adsorbing nitrogen from air passing through the air filter and passing oxygen, and an oxygen tank for storing oxygen supplied from the adsorbent and releasing oxygen using a vacuum.

Claims13

Dependent claims

An air purification device for an automobile with oxygen-supplying function, provided with a suction port and a releasing port for sucking air in the automobile and releasing air into the automobile, and a channel connecting the suction port to the releasing port, comprising:

an air filter, adjacent to the suction port, to remove impurities from air;
vacuum pump means for sucking air in the automobile;
two adsorption beds, connected to the air filter, for separating oxygen from air, said adsorption beds each containing an adsorbent mostly adsorbing nitrogen from air;
bypass channel means connecting the adsorption beds to each other, and allowing oxygen enriched air to flow from one adsorption bed to the other adsorption bed;
additional pump means for releasing the oxygen enriched air from the adsorption beds;
a check valve, connected to each of the adsorption beds and the additional pump means, thus allowing the oxygen enriched air to exclusively flow from the adsorption beds to the additional pump means;
and
valve means mounted on a channel connected to the two adsorption beds, the vacuum pump means, and the air filter to alternately allow a vacuum and atmospheric pressure to be applied into each adsorption bed,
wherein said vacuum pump means is directly seated on the automobile and driven by an engine, each of said adsorption beds converts air sucked from an inside of the automobile into the oxygen enriched air to supply the oxygen enriched air into the automobile by the additional pump means, said air sucked from the inside of the automobile is thus converted into the oxygen enriched air by controlling the channel using the valve means to alternately apply the vacuum and atmospheric pressure into each adsorption bed using vacuum pressure generated from the vacuum pump means according to a vacuum swing adsorption process.

6 more elements

An air purification device for an automobile with oxygen-supplying function, provided with a suction port and a releasing port for sucking air in the automobile and releasing air into the automobiles and a first channel connecting the suction port to the releasing port, comprising:

an air filter, adjacent to the suction port, to remove impurities from air;
a first pump for sucking air in the automobile;
two adsorption beds, connected to the air filter, for separating oxygen from air, said adsorption beds each containing an adsorbent mostly adsorbing nitrogen from air;
a bypass channel connecting the adsorption beds to each other, and allowing oxygen enriched air to flow from one adsorption bed to the other adsorption bed;
a second pump for releasing the oxygen enriched air from the adsorption beds;
a check valve, connected to each of the adsorption beds and the second pump, thereby allowing the oxygen enriched air to exclusively flow from the adsorption beds to the second pump;
a valve mounted on a second channel connected to the two adsorption beds, the first pump, and the air filter to alternately allow a vacuum and atmospheric pressure to be applied into each adsorption bed,
wherein said first pump is directly seated on the automobile and driven by an engine, each of said adsorption beds converts air sucked from an inside of the automobile in the oxygen enriched air to supply the oxygen enriched air into the automobile by the second pump, said air sucked from the inside of the automobile is thus converted into the oxygen enriched air by controlling the channel using the valve mounted on the channel to alternately apply the vacuum and atmospheric pressure into each adsorption bed using vacuum pressure generated from said first pump according to a vacuum swing adsorption process.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/341,787Filed 14 Jan 2003
Published: US 2003/0131732 A117 Jul 2003
Granted: 30 Mar 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

B60H 3/0035
Adding substances other than water to the air, e.g. perfume, oxygen: characterised by the control methods for adding the substance
B01D 53/0476
Pressure swing adsorption: vacuum pressure swing adsorption
B60H 3/0007
Other air-treating devices: adding substances other than water to the air, e.g. perfume, oxygen
F24F 3/16
Characterised by the treatment of the air otherwise than by heating and cooling: by purification, e.g. by filtering; by sterilisation; by ozonisation