KR101134094B1 - Jetfan - Google Patents

Jetfan Download PDF

Info

Publication number
KR101134094B1
KR101134094B1 KR1020090060228A KR20090060228A KR101134094B1 KR 101134094 B1 KR101134094 B1 KR 101134094B1 KR 1020090060228 A KR1020090060228 A KR 1020090060228A KR 20090060228 A KR20090060228 A KR 20090060228A KR 101134094 B1 KR101134094 B1 KR 101134094B1
Authority
KR
South Korea
Prior art keywords
inner diameter
impeller
mounting
cylindrical housing
mounting portion
Prior art date
Application number
KR1020090060228A
Other languages
Korean (ko)
Other versions
KR20110002650A (en
Inventor
박재중
Original Assignee
주식회사 하이옥스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 하이옥스 filed Critical 주식회사 하이옥스
Priority to KR1020090060228A priority Critical patent/KR101134094B1/en
Publication of KR20110002650A publication Critical patent/KR20110002650A/en
Application granted granted Critical
Publication of KR101134094B1 publication Critical patent/KR101134094B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003—Ventilation of traffic tunnels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Abstract

본 발명은 대형 실내 체육관, 대형 공장, 지하주차장, 터널 등의 실내공기순환 및 환기를 목적으로 설치되는 제트팬에 관한 것이다. The present invention relates to a jet fan installed for the purpose of indoor air circulation and ventilation, such as a large indoor gymnasium, large factory, underground parking lot, tunnel.

본 발명에 따른 제트팬은 원통형 하우징(10)의 내부에 임펠러(30)와 모터(20)가 장착되고, 상기 원통형 하우징(10)이 외기가 유입되는 유입부(11)와 임펠러(30) 및 모터(20)가 배치되는 장착부(12) 사이에 확장 테이퍼부(13)가 형성되고, 상기 장착부(12)와 바람이 토출되는 토출부(14) 사이에 축소 테이퍼부(15)가 형성되며, 유입부(11)의 내경(d1) 보다 장착부(12)의 내경(d2)이 더 큼으로써, 확장 테이터부(13)의 내경(d3)이 유입부(11)에서 장착부(12)로 갈수록 커지고, 상기 유입부(11)의 내경(d1)과 토출부(14)의 내경(d4)이 같아, 축소 테이퍼부(15)의 내경(d5)이 장착부(12)에서 토출부(14)로 갈수록 작아지는 것을 특징으로 한다.In the jet fan according to the present invention, the impeller 30 and the motor 20 are mounted in the cylindrical housing 10, and the inlet part 11 and the impeller 30 into which the outside of the cylindrical housing 10 is introduced, and An expansion taper portion 13 is formed between the mounting portions 12 on which the motor 20 is disposed, and a reduction taper portion 15 is formed between the mounting portion 12 and the discharge portion 14 through which wind is discharged. As the inner diameter d2 of the mounting portion 12 is larger than the inner diameter d1 of the inflow portion 11, the inner diameter d3 of the expansion data portion 13 becomes larger from the inflow portion 11 to the mounting portion 12. The inner diameter d1 of the inflow portion 11 and the inner diameter d4 of the discharge portion 14 are the same, and the inner diameter d5 of the reduced taper portion 15 moves from the mounting portion 12 to the discharge portion 14. It is characterized by being smaller.

Description

제트팬{JETFAN}Jet Fan {JETFAN}

본 발명은 대형 실내 체육관, 대형 공장, 지하주차장, 터널 등의 실내공기 순환 및 환기를 목적으로 설치되는 제트팬에 관한 것으로서, 보다 상세하게는, 임펠러와 모터가 장착되는 원통형 하우징의 내경이 확장된 후 다시 감소되어 벤튜리 효과와 노즐 효과를 얻을 수 있는 제트팬에 관한 것이다.The present invention relates to a jet fan installed for the purpose of circulating and ventilating indoor air in a large indoor gymnasium, a large factory, an underground parking lot, and a tunnel. It is related to a jet fan that can be reduced afterwards to obtain a venturi effect and a nozzle effect.

대한민국 특허 제10-0891622호(2009년 3월 27일)에 "제트팬"이 소개되어 있다. "Jetpan" is introduced in Korean Patent No. 10-0891622 (March 27, 2009).

상기 제트팬은 바람의 흐름 방향으로 원통형 하우징의 내부에 인입측 소음기, 임펠러와 모터, 그리고 배출측 소음기가 배치되고, 상기 인입측 소음기에 방사상으로 장착되는 제 1 고정판에 의해, 인입측 소음기가 하우징의 센터에 배치되고, 상기 모터가 장착되는 모터 케이싱이 다수개의 고정익에 의해 고정되고, 상기 배출측 소음기가 방사상으로 장착되는 다수개의 제 2 고정판에 의해 하우징의 센터에 배치되고, 상기 하우징의 후단에 노즐이 장착된다.The jet fan has an inlet side muffler, an impeller and a motor, and an outlet side muffler disposed inside the cylindrical housing in a wind flow direction, and the inlet side muffler is disposed by a first fixing plate radially mounted to the inlet side muffler. And a motor casing in which the motor is mounted is fixed by a plurality of fixed blades, and the discharge side silencer is disposed in the center of the housing by a plurality of second fixing plates radially mounted, and at the rear end of the housing. The nozzle is mounted.

그러나, 상기 제트팬은 송풍거리를 향상시키기 위해 하우징의 후단에 노즐을 별도로 장착해야 하며, 임펠러에서 발생하는 소음을 줄이기 위해 부가적으로 소음기를 설치해야 하는 단점이 있었다.However, the jet fan has a disadvantage in that a nozzle must be separately installed at the rear end of the housing to improve the blowing distance, and an additional silencer must be installed to reduce noise generated by the impeller.

따라서, 본 발명의 목적은 임펠러와 모터가 장착되는 원통형 하우징의 내경이 점차적으로 확장되었다가 점차적으로 감소되어, 벤튜리 효과와 노즐 효과를 얻을 수 있어, 토출구에 별도의 노즐을 장착하지 않아도 충분한 송풍거리를 달성할 수 있고, 임펠러에서 발생하는 소음을 감소시킬 수 있어, 별도의 소음기를 장착하지 않아도 되는 제트팬을 제공하는 것이다. Accordingly, an object of the present invention is that the inner diameter of the cylindrical housing on which the impeller and the motor are mounted gradually expands and then gradually decreases to obtain a venturi effect and a nozzle effect, so that a sufficient blowing air is not required to install a separate nozzle at the discharge port. It is possible to achieve a distance, to reduce the noise generated by the impeller, to provide a jet fan that does not require a separate silencer.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 제트팬은 원통형 하우징의 내부에 임펠러와 모터가 장착된다.Jet fan according to the present invention for achieving the above object is equipped with an impeller and a motor inside the cylindrical housing.

상기 원통형 하우징은 외기가 유입되는 유입부와 임펠러 및 모터가 배치되는 장착부 사이에 확장 테이퍼부가 형성되고, 상기 장착부와 바람이 토출되는 토출부 사이에 축소 테이퍼부가 형성되며, 유입부의 내경 보다 장착부의 내경이 더 큼으로써, 확장 테이터부의 내경이 유입부에서 장착부로 갈수록 커지고, 상기 유입부의 내경과 토출부의 내경이 같아, 축소 테이퍼부의 내경이 장착부에서 토출부로 갈수록 작아지는 것을 특징으로 한다.The cylindrical housing has an extended taper portion formed between an inflow portion into which outside air is introduced and a mounting portion on which an impeller and a motor are disposed, and a reduced taper portion is formed between the mounting portion and a discharge portion through which wind is discharged, and an inner diameter of the mounting portion is greater than that of the inflow portion. The larger inner diameter of the expanded data portion increases from the inflow portion to the mounting portion, and the inner diameter of the inflow portion and the discharge portion are the same, and the inner diameter of the reduced taper portion decreases from the mounting portion to the discharge portion.

이것에 의해, 본 발명에 따른 제트팬은 원통형 하우징의 벤튜리 효과에 의해 임펠러에서 발생하는 소음을 많이 감쇄되어, 원통형 하우징의 내부에 별도의 소음기를 장착하지 않아도 확장 테이퍼부와 축소 테이퍼부에 흡음재를 채우는 것만으로도 방음효과를 충분히 발성할 수 있으며, 원통형 하우징의 노즐 효과에 의해 토출부에서 토출되는 바람이 충분히 먼 거리까지 도달될 수 있어, 제조 비용을 절감할 수 있는 효과가 있다.As a result, the jet fan according to the present invention attenuates a lot of noise generated by the impeller due to the venturi effect of the cylindrical housing, so that the sound absorbing material does not need to install a separate silencer inside the cylindrical housing. It is possible to sufficiently sound the sound effect only by filling the, the wind discharged from the discharge portion can be reached to a far enough distance by the nozzle effect of the cylindrical housing, there is an effect that can reduce the manufacturing cost.

이하, 본 발명의 바람직한 실시예를 도면을 참조하여 상세하게 설명하기로 한다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1을 참조하면, 본 발명에 따른 제트팬은 원통형 하우징(10)의 내부에 임펠러(30)와 모터(20)가 장착된다.Referring to FIG. 1, the jet fan according to the present invention is equipped with an impeller 30 and a motor 20 inside the cylindrical housing 10.

도 2를 참조하면, 상기 원통형 하우징(10)은 외기가 유입되는 유입부(11)와 임펠러(30) 및 모터(20)가 배치되는 장착부(12) 사이에 확장 테이퍼부(13)가 형성되고, 상기 장착부(12)와 바람이 토출되는 토출부(14) 사이에 축소 테이퍼부(15)가 형성되며, 유입부(11)의 내경(d1) 보다 장착부(12)의 내경(d2)이 더 큼으로써, 확장 테이터부(13)의 내경(d3)이 유입부(11)에서 장착부(12)로 갈수록 커지고, 상기 유입부(11)의 내경(d1)과 토출부(14)의 내경(d4)이 같아, 축소 테이퍼부(15)의 내경(d5)이 장착부(12)에서 토출부(14)로 갈수록 작아진다.Referring to FIG. 2, the cylindrical housing 10 has an extended taper portion 13 formed between an inlet portion 11 through which outside air is introduced, and a mounting portion 12 on which an impeller 30 and a motor 20 are disposed. In addition, a reduced taper 15 is formed between the mounting portion 12 and the discharge portion 14 through which the wind is discharged, and the inner diameter d2 of the mounting portion 12 is larger than the inner diameter d1 of the inflow portion 11. As a result, the inner diameter d3 of the expanded data portion 13 becomes larger from the inflow portion 11 to the mounting portion 12, and the inner diameter d1 of the inflow portion 11 and the inner diameter d4 of the discharge portion 14 are larger. ) Is the same, the inner diameter d5 of the reduced tapered portion 15 becomes smaller toward the discharge portion 14 from the mounting portion 12.

상기와 같이 구성된 원통형 하우징(10)은 임펠러(30)에 의해 외기가 유입부(11)에서 확장 테이퍼부(13)를 통해 장착부(12)로 유입될 때, 벤튜리 효과에 의 해 임펠러(30)에 가해지는 충격이 감소되어, 임펠러(30)에서 발생하는 소음이 감소되고, 외기가 임펠러(30)에 의해 장착부(12)에서 축소 테이퍼부(15) 및 토출부(14)를 통해 외부로 토출될 때, 노즐 효과에 의해 토출부(14)에서 바람이 강하게 토출되어, 충분한 송풍거리를 확보할 수 있다.The cylindrical housing 10 configured as described above has an impeller 30 by the venturi effect when the outside air flows into the mounting portion 12 from the inlet portion 11 through the expansion taper portion 13 by the impeller 30. ), The impact on the impeller 30 is reduced, and the outside air is discharged from the mounting portion 12 by the impeller 30 to the outside through the reduced taper portion 15 and the discharge portion 14. When discharged, the wind is strongly discharged from the discharge portion 14 by the nozzle effect, thereby ensuring a sufficient blowing distance.

즉, Q(유량) = A(단면적) × V(유속)이기 때문에, 외기가 유입부(11)에서 확장 테이퍼부(13)를 통해 장착부(12)로 공급될 때, 유입부(11)의 단면적에 비해 장착부(12)의 단면적이 증가된 것에 비례하여 장착부(12)로 공급되는 외기의 유속이 느려짐으로써, 임펠러(30)에 가해지는 충격이 감소되고, 이것에 의해, 임펠러(30)에서 발생하는 소음이 감소된다. 여기서, A(단면적) = π×(d/2)2 That is, since Q (flow rate) = A (cross-sectional area) x V (flow rate), when the outside air is supplied from the inflow part 11 to the mounting part 12 through the expansion taper part 13, the inflow part 11 By slowing down the flow velocity of the outside air supplied to the mounting portion 12 in proportion to the increase in the cross-sectional area of the mounting portion 12 relative to the cross-sectional area, the impact on the impeller 30 is reduced, whereby the impeller 30 The noise generated is reduced. Where A (cross-sectional area) = π × (d / 2) 2

또한, 임펠러(30)에 의해 장착부(12)의 외기가 축소 테이퍼부(15)를 통해 토출부(14)에서 토출될 때, 장착부(12)의 단면적에 비해 토출부(14)의 단면적이 작아진 만큼 유속이 증가됨으로써, 토출부(14)에서 바람이 강하게 토출되어, 충분한 송풍거리를 확보할 수 있게 된다.In addition, when the outside air of the mounting portion 12 is discharged from the discharge portion 14 through the reduced tapered portion 15 by the impeller 30, the cross-sectional area of the discharge portion 14 is smaller than that of the mounting portion 12. By increasing the flow rate as much as it is lost, the wind is strongly discharged from the discharge portion 14, thereby ensuring a sufficient blowing distance.

상기와 같이 구성된 본 발명에 따른 제트팬은 원통형 하우징(10)의 벤튜리 효과에 의해 임펠러(30)에서 발생하는 소음을 많이 감쇄되어, 원통형 하우징(30)의 내부에 별도의 소음기를 장착하지 않아도 확장 테이퍼부(13)와 축소 테이퍼부(15)에 흡음재(40)를 채우는 것만으로도 방음효과를 충분히 발성할 수 있으며, 원통형 하우징(10)의 노즐 효과에 의해 토출부(14)에서 토출되는 바람이 충분히 먼 거리까지 도달될 수 있어, 별도의 노즐을 장착하지 않아도 된다.The jet fan according to the present invention configured as described above is attenuated a lot of noise generated by the impeller 30 by the venturi effect of the cylindrical housing 10, even without mounting a separate silencer inside the cylindrical housing 30 The sound absorbing effect can be sufficiently sounded simply by filling the sound absorbing material 40 in the expansion taper portion 13 and the reduction taper portion 15, and discharged from the discharge portion 14 by the nozzle effect of the cylindrical housing 10. The wind can reach far enough distances, eliminating the need for a separate nozzle.

도 1은 본 발명에 따른 제트팬을 도시한 단면도1 is a cross-sectional view showing a jet fan according to the present invention

도 2는 도 1의 원통형 하우징을 도시한 단면도2 is a cross-sectional view of the cylindrical housing of FIG.

Claims (1)

원통형 하우징(10)의 내부에 임펠러(30)와 모터(20)가 장착되고, The impeller 30 and the motor 20 are mounted inside the cylindrical housing 10, 상기 원통형 하우징(10)은 외기가 유입되는 유입부(11)와 임펠러(30) 및 모터(20)가 배치되는 장착부(12) 사이에 확장 테이퍼부(13)가 형성되고, 상기 장착부(12)와 바람이 토출되는 토출부(14) 사이에 축소 테이퍼부(15)가 형성되며, 유입부(11)의 내경(d1) 보다 장착부(12)의 내경(d2)이 더 큼으로써, 확장 테이터부(13)의 내경(d3)이 유입부(11)에서 장착부(12)로 갈수록 커지고, 상기 유입부(11)의 내경(d1)과 토출부(14)의 내경(d4)이 같아, 축소 테이퍼부(15)의 내경(d5)이 장착부(12)에서 토출부(14)로 갈수록 작아지는 것을 특징으로 하는 제트팬.The cylindrical housing 10 has an extended taper portion 13 formed between the inlet portion 11 through which the outside air is introduced, and the mounting portion 12 on which the impeller 30 and the motor 20 are disposed, and the mounting portion 12 And the reduced taper 15 is formed between the discharge portion 14 through which the wind is discharged and the inner diameter d2 of the mounting portion 12 is larger than the inner diameter d1 of the inflow portion 11, thereby expanding the extended data portion. The inner diameter d3 of (13) increases from the inflow part 11 to the mounting part 12, and the inner diameter d1 of the said inflow part 11 and the inner diameter d4 of the discharge part 14 are the same, and a taper is reduced. A jet fan, characterized in that the inner diameter (d5) of the section (15) becomes smaller from the mounting section (12) toward the discharge section (14).
KR1020090060228A 2009-07-02 2009-07-02 Jetfan KR101134094B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090060228A KR101134094B1 (en) 2009-07-02 2009-07-02 Jetfan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090060228A KR101134094B1 (en) 2009-07-02 2009-07-02 Jetfan

Publications (2)

Publication Number Publication Date
KR20110002650A KR20110002650A (en) 2011-01-10
KR101134094B1 true KR101134094B1 (en) 2012-04-19

Family

ID=43610824

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090060228A KR101134094B1 (en) 2009-07-02 2009-07-02 Jetfan

Country Status (1)

Country Link
KR (1) KR101134094B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102039119B1 (en) 2018-11-09 2019-10-31 오충록 A Jet Fan for a Tunnel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360085B (en) * 2019-07-22 2020-11-24 浙江沈力防爆机电有限公司 Induced jet fan
KR102108019B1 (en) 2019-08-16 2020-05-07 서번산업엔지니어링 주식회사 Jet fan with underground parking air transport, ventilation and cooling function
KR102091561B1 (en) 2019-11-19 2020-03-20 서번산업엔지니어링 주식회사 Jet air transfer fan system with underground parking air ventilation, smoke removal, and cooling function
CN112576523B (en) * 2020-12-04 2023-06-02 重庆海尔空调器有限公司 Cross-flow fan and air conditioner with same
CN112576524B (en) * 2020-12-04 2023-04-14 重庆海尔空调器有限公司 Cross-flow fan and air conditioner with same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07247991A (en) * 1994-03-04 1995-09-26 Hitachi Ltd Diagonal flow fan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07247991A (en) * 1994-03-04 1995-09-26 Hitachi Ltd Diagonal flow fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102039119B1 (en) 2018-11-09 2019-10-31 오충록 A Jet Fan for a Tunnel

Also Published As

Publication number Publication date
KR20110002650A (en) 2011-01-10

Similar Documents

Publication Publication Date Title
KR101134094B1 (en) Jetfan
JP5223250B2 (en) Centrifugal impeller and centrifugal blower
US8033783B2 (en) Diagonal flow fan
US9970443B2 (en) Fan frame and fan assembly with silencing structures
KR101255739B1 (en) The induced fan for two impeller for jet fan of track type supply air outlet
CA2746496A1 (en) A fan assembly
US9458860B2 (en) Fan with sound-muffling box
WO2011113184A1 (en) Ventilation fan noise-reduction structure
JP7276857B2 (en) Optimized tunnel ventilation device
JP2009191721A (en) Duct connecting adapter and blower
JP5845391B2 (en) Blower with outdoor silencer box
CN104976154A (en) Radial fan housing
JP5292759B2 (en) Centrifugal blower
JP2005351205A (en) Low noise device for blower
JP5309737B2 (en) Centrifugal blower
JP2011169295A (en) Blower
WO2008072558A1 (en) Centrifugal impeller and centrifugal blower using it
US7806229B2 (en) Fan powered silencing terminal unit
JP2006038443A (en) Blast duct
JP2016164468A (en) Outdoor unit for air conditioner
JP2007113526A (en) Blowing device
JP4902132B2 (en) Blower
KR20000000020U (en) Soundproofing-type fan
JP5164801B2 (en) Centrifugal multiblade blower
KR200360096Y1 (en) Eddy current prevent system of transverse fan

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20160323

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20180326

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20190401

Year of fee payment: 8