IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0388399
(2003-03-17)
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우선권정보 |
TW-88220261 U(1999-11-25) |
발명자
/ 주소 |
- Huang,Wen shi
- Lin,Kuo cheng
- Chang,Shun chen
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출원인 / 주소 |
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대리인 / 주소 |
Birch, Stewart, Kolasch &
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인용정보 |
피인용 횟수 :
2 인용 특허 :
17 |
초록
▼
This specification discloses a serial fan comprising a plurality of rotor vanes, one or more supports and a frame. Each of the rotor vanes comprises an inlet, an outlet, and one or more blades. Each support supports at least one of the rotor vanes so that the corresponding rotor vane can rotate ther
This specification discloses a serial fan comprising a plurality of rotor vanes, one or more supports and a frame. Each of the rotor vanes comprises an inlet, an outlet, and one or more blades. Each support supports at least one of the rotor vanes so that the corresponding rotor vane can rotate thereon. The frame connects all the supports. The rotor vanes are connected in series in the axial direction, and the design of each of the rotor vanes is such that the velocity vector of the air relative to one of the blades on the outlet side of the ith rotor vane plus the velocity vector of the blade of the (i+1)th rotor vane relative to that of the ith rotor vane gives the incoming velocity vector of the air relative to the (i+1)th rotor vane. This vector is essentially parallel to the extension direction of the blade on the inlet side of the (i+1)th rotor vane. Here, i is a natural number smaller than the number of the plurality of rotor vanes.
대표청구항
▼
What is claimed is: 1. An axial-flow serial fan, comprising: a frame having a support connected to and disposed inside the frame; a first rotor vane having at least one first blade; a second rotor vane having at least one second blade; a first motor for driving the first rotor vane; and a second mo
What is claimed is: 1. An axial-flow serial fan, comprising: a frame having a support connected to and disposed inside the frame; a first rotor vane having at least one first blade; a second rotor vane having at least one second blade; a first motor for driving the first rotor vane; and a second motor for driving the second rotor vane, wherein the first rotor vane and the second rotor vane are provided in series in the frame along an axial direction and at least one of said first and second motors is disposed within a hub of one of said first and second rotor vanes, and the first and second motors are received by the support to minimize space occupied by the axial-flow serial fan in the axial direction; and rotational speeds and directions of the first rotor vane and the second rotor vane are controllable by the first motor and the second motor, respectively. 2. The axial-flow serial fan as set forth in claim 1, wherein the first rotor vane and the second rotor vane have the same rotational speed. 3. The axial-flow serial fan as set forth in claim 1, wherein the first rotor vane and the second rotor vane have different rotational speeds. 4. The axial-flow serial fan as set forth in claim 1, wherein the first rotor vane and the second rotor vane have the same rotational direction. 5. The axial-flow serial fan as set forth in claim 1, wherein the first rotor vane and the second rotor vane have different rotational directions. 6. The axial-flow serial fan as set forth in claim 1, wherein numbers of the first blades and the second blades are the same. 7. The axial-flow serial fan as set forth in claim 1, wherein numbers of the first blades and the second blades are different. 8. The axial-flow serial fan as set forth in claim 1, wherein the first blades and the second blades have the same tilting angle. 9. The axial-flow serial fan as set forth in claim 1, wherein the first blades and the second blades have different tilting angles. 10. The axial-flow serial fan as set forth in claim 1, wherein the support is connected to the frame through a plurality of ribs. 11. The axial-flow serial fan as set forth in claim 1, wherein the first motor and the second motor are mounted on the support. 12. An axial-flow serial fan, comprising: a single frame; a first rotor vane having a first hub and at least one first blade; a second rotor vane having a second hub and at least one second blade; a first motor for driving the first rotor vane; and a second motor for driving the second rotor vane, wherein the first rotor vane and the. second rotor vane are provided in series in the single frame along an axial direction, and the first motor and the second motor are provided within the first hub and the second hub, respectively, in the single frame to minimize space occupied by the axial-flow serial fan in the axial direction. 13. The axial-flow serial fan as set forth in claim 12, further comprising: a support for supporting the first motor ahd the second motor; and a plurality of ribs for connecting the support to the frame. 14. The axial-flow serial fan as set forth in claim 12, wherein numbers of the first blades and the second blades are the same. 15. The axial-flow serial fan as set forth in claim 12, wherein numbers of the first blades and the second blades are different. 16. The axial-flow fan as set forth in claim 12, wherein the first blades and the second blades have the same titling angle. 17. The axial-flow fan as set forth in claim 12, wherein the first blades and the second blades have different titling angles. 18. The axial-flow serial fan as set forth in claim 12, wherein numbers of the first blades and the second blades are the same. 19. An axial-flow serial fan, comprising: a frame; a first rotor vane having at least one first blade; a second rotor vane having at least one second blade; and at least one motor for driving the first rotor vane and the second rotor vane; wherein the first rotor vane and the second rotor vane are provided in series in the frame along an axial direction and said at least one motor is disposed within a hub of one of said first and second rotor vanes, and the second rotor vane is set as a standby rotor vane. 20. The axial-flow serial fan as set forth in claim 19, further comprising: a support for supporting the at least one motor; and a plurality of ribs for connecting the support to the frame. 21. An axial-flow serial fan, comprising: a frame having a support disposed therein; a plurality of rotor vanes; and at least one motor received by the support for driving the plurality of rotor vanes; wherein the plurality of rotor vanes are provided in series in the frame along an axial direction, and the at least one motor is disposed within a hub of the plurality of rotor vanes to minimize space occupied by the axial-flow serial fan in the axial direction. 22. The axial-flow serial fan as set forth in claim 21, further comprising: a plurality of ribs for connecting the support to the frame.
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