KR20190085716A - Hollow fiber cartridge capable of controlling flow direction of fluid and fuel cell membrane humidifier comprising it - Google Patents

Hollow fiber cartridge capable of controlling flow direction of fluid and fuel cell membrane humidifier comprising it Download PDF

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Publication number
KR20190085716A
KR20190085716A KR1020180003924A KR20180003924A KR20190085716A KR 20190085716 A KR20190085716 A KR 20190085716A KR 1020180003924 A KR1020180003924 A KR 1020180003924A KR 20180003924 A KR20180003924 A KR 20180003924A KR 20190085716 A KR20190085716 A KR 20190085716A
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KR
South Korea
Prior art keywords
fluid
hollow fiber
fiber membrane
stripes
plurality
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Application number
KR1020180003924A
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Korean (ko)
Inventor
김경주
이진형
안웅전
안나현
오영석
Original Assignee
코오롱인더스트리 주식회사
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Priority to KR1020180003924A priority Critical patent/KR20190085716A/en
Publication of KR20190085716A publication Critical patent/KR20190085716A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08Hollow fibre membranes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126Humidifying
    • H01M8/04149Humidifying by diffusion, e.g. making use of membranes

Abstract

The present invention relates to a fuel cell membrane humidifier capable of enhancing humidifying efficiency by controlling a flow direction of the fluid. The fuel cell membrane humidifier according to an embodiment of the present invention comprises: a hollow fiber membrane module accommodating a hollow fiber membrane in which a first fluid flows inside and a second fluid flows outside to exchange moisture between the first fluid and the second fluid; and a housing portion forming an appearance of the membrane humidifier. A fluid guide unit is formed between the hollow fiber membrane and the housing portion to induce a flow of fluid uniformly.

Description

[0001] The present invention relates to a hollow fiber membrane cartridge capable of controlling the flow direction of a fluid and a fuel cell membrane humidifier including the hollow fiber membrane cartridge,

The present invention relates to a hollow fiber membrane cartridge capable of improving the humidifying efficiency by controlling the flow direction of a fluid and a fuel cell membrane humidifier including the hollow fiber membrane cartridge.

Fuel cells are power generation cells that produce electricity by combining hydrogen and oxygen. Unlike conventional chemical batteries, such as batteries and accumulators, fuel cells can produce electricity continuously as long as hydrogen and oxygen are supplied, and they are twice as efficient as internal combustion engines because they have no heat loss.

In addition, since the chemical energy generated by the combination of hydrogen and oxygen is directly converted into electric energy, the emission of pollutants is low. Therefore, the fuel cell has an advantage that it is not only environmentally friendly but also can reduce the concern about resource exhaustion due to an increase in energy consumption.

Such a fuel cell can be classified into a polymer electrolyte membrane fuel cell (PEMFC), a phosphoric acid fuel cell (PAFC), a molten carbonate fuel cell (MCFC), a solid oxide fuel cell SOFC), and an alkaline fuel cell (AFC).

Each of these fuel cells operates basically on the same principle, but the type of fuel used, the operating temperature, the catalyst, and the electrolyte are different from each other. Among them, polymer electrolyte fuel cells are known to be most promising not only in small size stationary power generation equipment but also in transportation system because they operate at a lower temperature than other fuel cells and can be miniaturized because of their high output density.

One of the most important factors in improving the performance of a polymer electrolyte fuel cell is to supply a predetermined amount or more of water to a polymer electrolyte membrane (PEM) of a membrane electrode assembly (MEA) Thereby maintaining the water content. When the polymer electrolyte membrane is dried, the power generation efficiency is rapidly lowered.

The method of humidifying the polymer electrolyte membrane is as follows: 1) a bubbler humidification method in which a pressure vessel is filled with water, a subject gas is passed through a diffuser to supply water, and 2) A direct injection method in which water is directly supplied to the gas flow pipe through calculation using a solenoid valve, and 3) a humidifying membrane method in which water is supplied to a fluidized bed of gas using a polymer separator.

Among them, the humidifying membrane type which humidifies the polymer electrolyte membrane by providing water vapor to the gas supplied to the polymer electrolyte membrane using a membrane selectively permeable to only the water vapor contained in the exhaust gas is advantageous in that the humidifier can be made lighter and smaller.

The selective permeable membrane used in the humidifying membrane method is preferably a hollow fiber membrane having a large permeation area per unit volume when a module is formed. That is, when the humidifier is manufactured using the hollow fiber membrane, the hollow fiber membrane having a large contact surface area can be highly integrated, so that the humidification of the fuel cell can be sufficiently performed even at a small capacity, and low cost materials can be used. Moisture and heat contained in the unreacted gas can be recovered and reused through the humidifier.

On the other hand, in the case of a hollow fiber membrane having a large permeation area per unit volume, the hollow fiber membrane can be highly integrated, and the humidification of the fuel cell can be sufficiently performed even at a small capacity. However, when the hollow fiber membrane is highly integrated, the flow of the fluid to the outside of the hollow fiber membrane due to the resistance due to the hollow fiber membrane is not uniformly formed.

In addition, since the flow of the fluid is not uniformly formed, the area of the membrane used decreases, and only a part of the membrane is used, thereby lowering the humidification efficiency.

Korea Patent Publication No. 10-2009-0013304 Korea Patent Publication No. 10-2009-0057773 Korean Patent Publication No. 10-2009-0128005 Korean Patent Publication No. 10-2000-0108092 Korean Patent Publication No. 10-2000-0131631 Korean Patent Publication No. 10-2001-0001022 Korean Patent Publication No. 10-2001-0006122 Korean Patent Publication No. 10-2001-0006128 Korean Patent Publication No. 10-2001-0021217 Korean Patent Publication No. 10-2001-0026696 Korean Patent Publication No. 10-2001-0063366

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides a hollow fiber membrane cartridge and a fuel cell membrane humidifier including the hollow fiber membrane cartridge capable of improving the humidification efficiency by uniformly forming a flow of fluid even when the hollow fiber membrane is highly integrated .

In the hollow fiber membrane cartridge according to the embodiment of the present invention,

A body portion in which a first fluid flows inside and a second fluid introduced from the outside flows to the outside, and a hollow fiber membrane in which the first fluid and the second fluid perform water exchange is received; And a fluid guide portion formed on an inner circumferential surface of the body portion and uniformly guiding a fluid flow between the hollow fiber membrane and the body portion.

In the hollow fiber membrane cartridge according to an embodiment of the present invention, the fluid guide portion may be formed of a plurality of stripes protruding from the inner circumferential surface of the body portion at a predetermined size.

In the hollow fiber membrane cartridge according to an embodiment of the present invention, the height of the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane.

The hollow fiber membrane cartridge according to an embodiment of the present invention is characterized in that the interval between the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane.

In the hollow fiber membrane cartridge according to an embodiment of the present invention, the plurality of stripes form an angle of 30 to 90 degrees with the center axis of the hollow fiber membrane cartridge.

In the hollow fiber membrane cartridge according to an embodiment of the present invention, the height of the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane, and the interval between the plurality of stripes is 50 to 300 %, And an angle formed between the plurality of stripes and the central axis of the hollow fiber membrane cartridge is 30 to 90 degrees.

A fuel cell membrane humidifier according to an embodiment of the present invention includes:

A housing portion including a first fluid inlet through which the first fluid flows, a first fluid outlet through which the first fluid flows, a second fluid inlet through which the second fluid flows, and a second fluid outlet through which the second fluid flows out; Wherein the first fluid introduced from the first fluid inlet flows into the first fluid inlet and the second fluid introduced from the second fluid inlet flows into the outside to receive the hollow fiber membrane in which the first fluid and the second fluid perform water exchange And at least one hollow fiber membrane cartridge disposed in the housing part, the hollow fiber membrane cartridge including a fluid guide part formed on an inner circumferential surface of the body part and uniformly guiding fluid flow between the hollow fiber membrane and the body part.

In the fuel cell membrane humidifier according to an embodiment of the present invention, the fluid guide portion may include a plurality of stripes protruding from the inner circumferential surface of the body portion at a predetermined size.

In the fuel cell membrane humidifier according to the embodiment of the present invention, the height of the plurality of stripes may be 50 to 300% of the diameter of a single hollow fiber membrane.

In the fuel cell membrane humidifier according to the embodiment of the present invention, the interval between the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane.

In the fuel cell membrane humidifier according to the embodiment of the present invention, the angle formed by the plurality of stripes with the central axis of the hollow fiber membrane module is 30 to 90 degrees.

In the fuel cell membrane humidifier according to the embodiment of the present invention, the height of the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane, and the interval between the plurality of stripes is 50 ~ And the angle formed between the plurality of stripes and the central axis of the hollow fiber membrane module is 30 to 90 degrees.

Other specific embodiments of various aspects of the present invention are included in the detailed description below.

According to the embodiment of the present invention, the flow of the fluid introduced into the hollow fiber membrane cartridge by the fluid guide portion can be uniformly formed, and the humidification efficiency can be improved.

Further, since the fluid guide portion is formed at a predetermined height between the hollow fiber membrane and the hollow fiber membrane cartridge, direct contact between the hollow fiber membrane and the inner circumferential surface of the hollow fiber membrane cartridge can be prevented so that the hollow fiber membrane can be prevented from being damaged by the inner surface of the hollow fiber membrane cartridge. can do.

1 is a view showing a fuel cell membrane humidifier according to an embodiment of the present invention.
2A to 2C are views showing various modifications of the fuel cell membrane humidifier according to an embodiment of the present invention.
3 is a view illustrating a hollow fiber membrane cartridge according to an embodiment of the present invention.
4 is a cross-sectional view taken along line AA 'of FIG.
5 is a view showing a fluid guide portion according to an embodiment of the present invention.
6 is a cross-sectional view taken along line BB 'of FIG.

The present invention is capable of various modifications and various embodiments and is intended to illustrate and describe the specific embodiments in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as "comprises" or "having" are used to designate the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof. Hereinafter, a hollow fiber membrane cartridge capable of controlling the flow direction of a fluid according to an embodiment of the present invention and a fuel cell membrane humidifier including the same will be described with reference to the drawings.

FIG. 1 is a view showing a fuel cell membrane humidifier according to an embodiment of the present invention, and FIGS. 2 (a) to 2 (c) are diagrams showing various modifications of the fuel cell membrane humidifier according to an embodiment of the present invention.

As shown in FIGS. 1 and 2 (FIGS. 2A to 2C), the fuel cell membrane humidifier according to an embodiment of the present invention includes a housing part 100 and a hollow fiber membrane module 200.

The housing part 100 forms the outer shape of the membrane humidifier. The housing part 100 may include a housing body 110 and a housing cap 120, and may be integrally formed with the housing body 110 and the housing cap 120. The housing body 110 and the housing caps 120 may be made of hard plastic such as polycarbonate or metal.

1 and 2B, the housing body 110 and the housing cap 120 may have a circular cross-sectional shape in the width direction or may have a cross-sectional shape in the width direction as shown in Figs. 2A and 2C, This may be a polygon. The polygon may be a square, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, or the like, and the polygon may be rounded. Also, the circular shape may be an elliptical shape.

At both ends of the housing body 110, a second fluid inlet 131 through which a second fluid is supplied and a second fluid outlet 132 through which a second fluid is discharged are formed. The first fluid may be a low-humidity fluid and the second fluid may be a high-humidity fluid. Alternatively, the second fluid may be a low-humidity fluid, and the first fluid may be a high-humidity fluid.

The housing cap 120 is coupled to both ends of the housing body 110. Each housing cap 120 has a first fluid inlet 121 and a first fluid outlet 122 formed therein. The first fluid introduced into the first fluid inlet 121 of the one housing cap 120 flows into the hollow fiber membrane module 200 and passes through the inner pipe of the hollow fiber membrane module 200 and flows out of the hollow fiber membrane module 200 , And then escapes to the first fluid outlet 122 of the other housing cap 120.

A hollow fiber membrane cartridge 210 is disposed in the hollow fiber membrane module 200 and a plurality of bundles of hollow fiber membranes F selectively passing moisture through the hollow fiber membrane cartridge 210 are disposed.

The hollow fiber membrane F may be, for example, a hollow fiber membrane made of a Nafion material, a polyetherimide material, or a polyphenylsulfone material.

As shown in FIGS. 1 and 2A, a single hollow fiber membrane cartridge may be disposed in the hollow fiber membrane module 200. Meanwhile, as shown in FIGS. 2B and 2C, a plurality of hollow fiber membrane cartridges 210 may be disposed in the hollow fiber membrane module 200.

On the inner circumferential surface of the hollow fiber membrane cartridge 210, a fluid guide portion 212 for uniformly guiding the flow of the fluid flowing around the hollow fiber membrane F is formed. Here, the fluid may be a high-humidity fluid. The fluid guide portion 212 will be described later with reference to FIG. 3 to FIG.

At both ends of the hollow fiber membrane module 200, a potting portion (not shown) for binding the hollow fiber membrane F and filling the gap between the hollow fiber membranes is formed. As a result, the hollow fiber membrane module 200 has both ends thereof blocked by the potting portion, and a flow path through which the second fluid passes is formed therein. The material of the potting part is well known in the art and will not be described in detail here.

FIG. 3 is a view showing a hollow fiber membrane module of a fuel cell membrane humidifier according to an embodiment of the present invention, FIG. 4 is a sectional view taken along line A-A 'of FIG. 3, FIG. 6 is a cross-sectional view taken along line BB 'of FIG. 5. FIG.

3 and 4, the hollow fiber membrane cartridge 210 according to an embodiment of the present invention includes a body part 211 and a fluid guide part 212.

The body part 211 may be formed as an outer shape of the hollow fiber membrane cartridge 210 and a structure may be formed on the outer peripheral surface of the hollow part to be installed inside the housing part 100. The body part 211 includes a first mesh part 213 for allowing the second fluid introduced into the second fluid inlet 131 to flow into the hollow fiber membrane cartridge 210 and water exchange inside the hollow fiber membrane cartridge 210 And a second mesh portion 214 for allowing the second fluid to flow out of the hollow fiber membrane cartridge 210. The second fluid flowing out through the second mesh portion 214 flows out of the membrane humidifier through the second fluid outlet 132.

The fluid guide part 212 is formed on the inner peripheral surface of the hollow fiber membrane cartridge 210 to uniformly guide the flow of the fluid. The fluid guide part 212 guides the flow of the second fluid introduced into the hollow fiber membrane cartridge 210 through the first mesh part 213 toward the hollow fiber membrane F to improve the humidifying efficiency. Specifically, the fluid guide portion 212 may be formed of a plurality of stripes protruding from the inner circumferential surface of the body portion at a predetermined size.

The high-humidity second fluid introduced into the second fluid inlet 131 is flowed constantly by a plurality of stripes before flowing outside the hollow fiber membrane F, and then flows through the hollow fiber membrane F, And performs moisture exchange with the low-humidity first fluid flowing in the interior space (F).

The plurality of stripes are formed to have a constant height, an interval, and an angle to effectively control the flow direction of the high-humidity fluid.

5 and 6, a plurality of stripes S form a flow path F through which a high-humidity fluid flows, and the height h of the plurality of stripes S corresponds to the depth of the flow path F. FIG.

The height h of the plurality of stripes S is preferably 50 to 300% of the size of the single hollow fiber membrane. Here, the diameter of the single hollow fiber membrane may be, for example, about 1 mm, and accordingly, the height of the plurality of stripes S may be 0.5 to 3 mm in height.

When the height h of the plurality of stripes S is less than 50% of the diameter of the single hollow fiber membrane, a flow path having a sufficient depth can not be formed and the fluid flowing into the hollow fiber membrane module 200 can not flow along the flow path F, Lt; / RTI > When the height h of the plurality of stripes S exceeds 300% of the diameter of the single hollow fiber membrane, the effect is equal to 300% or less, which is not suitable for miniaturization.

The interval W between the stripes S is preferably 50 to 300% of the size of the single hollow fiber membrane. Here, the single hollow fiber membrane diameter may be, for example, about 1 mm, so that the interval between the stripes S may be formed to a size of 0.5 to 3 mm.

When the interval W between the stripes S is less than 50% of the single hollow fiber diameter size and the interval W between the stripes S exceeds 300% of the single hollow fiber diameter size, Or the effect of controlling the flow of the fluid is insignificant.

It is preferable that the angle O between the stripe S and the center axis X of the hollow fiber membrane module 200 (see FIG. 3 and FIG. 5) is 30 to 90 degrees. When the angle O is less than 30 degrees, there is a high possibility that the fluid introduced into the hollow fiber membrane module 200 does not sufficiently stay in the flow path F, On the other hand, when the angle O is an axisymmetric with respect to the X axis and a point symmetry with respect to the point O, that is, when the angle O is 2 to 4 quadrants with an angle O of 90 to 360, (In the case where the angle O is 0 to 90 degrees), the description thereof will be omitted.

Next, the moisture exchange process of the first fluid and the second fluid in the membrane humidifier constructed as above will be described. In the following description, the first fluid may be a low-humidity fluid and the second fluid may be a high-humidity fluid. Alternatively, the second fluid may be a low-humidity fluid, and the first fluid may be a high-humidity fluid.

The first fluid flows into the hollow fiber membrane F of the hollow fiber membrane module 200 and is discharged to the outside of the membrane humidifier through the first fluid outlet 122 of the housing cap 120 on the other side. Meanwhile, it is also possible that the first fluid flows into the first fluid outlet 122 and flows into the first fluid inlet 121.

The second fluid is supplied to the housing body 110 through the second fluid inlet 131 of the housing body 110 and then flows to the outside of the hollow fiber membrane F and then flows into the second fluid of the housing body 110 And is discharged to the outside through the outlet 132.

At this time, the second fluid is guided uniformly by the fluid guide part 212 composed of a plurality of stripes (S), and then flows through the hollow fiber membrane F while flowing outside the hollow fiber membrane F, Perform fluid exchange with the fluid.

As described above, according to the embodiment of the present invention, the flow of the fluid introduced into the hollow fiber membrane module 200 can be uniformly formed by the fluid guide portion, thereby improving the humidification efficiency.

Also, since the fluid guide part 212 is formed at a predetermined height between the hollow fiber membrane and the hollow fiber membrane cartridge 210, it is possible to prevent direct contact between the hollow fiber membrane and the inner circumferential surface of the hollow fiber membrane cartridge 210, It is possible to prevent the hollow fiber membrane from being damaged by the inner circumferential surface of the hollow fiber membrane 210.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

100: housing part 110: housing body
120: housing cap 121: first fluid inlet
122: first fluid outlet 131: second fluid inlet
132: second fluid outlet 200: hollow fiber membrane module
210: hollow fiber membrane cartridge 211:
212: fluid guide portion 213: first mesh portion
214: second mesh portion F: hollow fiber membrane

Claims (12)

  1. A body portion in which a first fluid flows inside and a second fluid introduced from the outside flows to the outside, and a hollow fiber membrane in which the first fluid and the second fluid perform water exchange is received; And
    A fluid guide part formed on an inner peripheral surface of the body part and uniformly guiding a fluid flow between the hollow fiber membrane and the body part;
    And a hollow fiber membrane cartridge.
  2. [2] The apparatus according to claim 1,
    And a plurality of stripes protruding from the inner circumferential surface of the body portion in a predetermined size.
  3. The method of claim 2,
    Wherein the height of the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane.
  4. The method of claim 2,
    Wherein the interval between the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane.
  5. The method of claim 2,
    Wherein an angle formed between the plurality of stripes and the central axis of the hollow fiber membrane cartridge is 30 to 90 degrees.
  6. The method of claim 2,
    Wherein the height of the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane diameter,
    Wherein the interval between the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane diameter,
    Wherein an angle formed between the plurality of stripes and the central axis of the hollow fiber membrane cartridge is 30 to 90 degrees.
  7. A housing portion including a first fluid inlet through which the first fluid flows, a first fluid outlet through which the first fluid flows, a second fluid inlet through which the second fluid flows, and a second fluid outlet through which the second fluid flows out;
    Wherein the first fluid introduced from the first fluid inlet flows into the first fluid inlet and the second fluid introduced from the second fluid inlet flows into the outside to receive the hollow fiber membrane in which the first fluid and the second fluid perform water exchange And a fluid guiding part formed on an inner circumferential surface of the body part and uniformly guiding a fluid flow between the hollow fiber membrane and the body part, wherein at least one hollow fiber membrane cartridge
    The fuel cell membrane humidifier comprising:
  8. The fluid control apparatus according to claim 7,
    And a plurality of stripes protruding from the inner circumferential surface of the body portion in a predetermined size.
  9. The method of claim 8,
    Wherein the height of the plurality of stripes is in the range of 50 to 300% of the size of the single hollow fiber membrane diameter.
  10. The method of claim 8,
    Wherein the spacing between the plurality of stripes is in the range of 50 to 300% of the size of the single hollow fiber membrane diameter.
  11. The method of claim 8,
    Wherein an angle formed between the plurality of stripes and a central axis of the hollow fiber membrane module is 30 to 90 degrees.
  12. The method of claim 8,
    Wherein the height of the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane diameter,
    Wherein the interval between the plurality of stripes is 50 to 300% of the size of a single hollow fiber membrane diameter,
    Wherein an angle formed between the plurality of stripes and a central axis of the hollow fiber membrane module is 30 to 90 degrees.
KR1020180003924A 2018-01-11 2018-01-11 Hollow fiber cartridge capable of controlling flow direction of fluid and fuel cell membrane humidifier comprising it KR20190085716A (en)

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Citations (9)

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Publication number Priority date Publication date Assignee Title
KR20010001022A (en) 1999-06-01 2001-01-05 윤종용 Method and Apparatus for Instruction issuing in Out-of-Order for Parallel Processor
KR20010006128A (en) 1997-04-08 2001-01-26 파워 엑스 리미티드 Closed-loop synchronisation arrangement for data transmission system
KR20010006122A (en) 1997-04-14 2001-01-26 크리트먼 어윈 엠 System for forming and processing an mpeg compatible datastream incorporating internet information
KR20010021217A (en) 1999-08-05 2001-03-15 야스카와 히데아키 Wiring pattern of liquid crystal display, liquid crystal display, and electronic equipment
KR20010026696A (en) 1999-09-08 2001-04-06 이중구 Method for automatically measuring line of balance and apparatus thereof
KR20010063366A (en) 1999-12-22 2001-07-09 서평원 Program and data down loading method for restating processor of mobile communication exchage system
KR20090013304A (en) 2007-08-01 2009-02-05 주식회사 코오롱 Hollow fiber membrane and method for manufacturing the same
KR20090057773A (en) 2007-12-03 2009-06-08 주식회사 코오롱 Fuel cell humidifier with improved cold resistance
KR20090128005A (en) 2008-06-10 2009-12-15 주식회사 코오롱 Humidification system for fuel cell and fuel cell system using the same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010006128A (en) 1997-04-08 2001-01-26 파워 엑스 리미티드 Closed-loop synchronisation arrangement for data transmission system
KR20010006122A (en) 1997-04-14 2001-01-26 크리트먼 어윈 엠 System for forming and processing an mpeg compatible datastream incorporating internet information
KR20010001022A (en) 1999-06-01 2001-01-05 윤종용 Method and Apparatus for Instruction issuing in Out-of-Order for Parallel Processor
KR20010021217A (en) 1999-08-05 2001-03-15 야스카와 히데아키 Wiring pattern of liquid crystal display, liquid crystal display, and electronic equipment
KR20010026696A (en) 1999-09-08 2001-04-06 이중구 Method for automatically measuring line of balance and apparatus thereof
KR20010063366A (en) 1999-12-22 2001-07-09 서평원 Program and data down loading method for restating processor of mobile communication exchage system
KR20090013304A (en) 2007-08-01 2009-02-05 주식회사 코오롱 Hollow fiber membrane and method for manufacturing the same
KR20090057773A (en) 2007-12-03 2009-06-08 주식회사 코오롱 Fuel cell humidifier with improved cold resistance
KR20090128005A (en) 2008-06-10 2009-12-15 주식회사 코오롱 Humidification system for fuel cell and fuel cell system using the same

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