Patents by Inventor Tsung-Yu Lei

Tsung-Yu Lei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050180849
    Abstract: An axial flow fan. The axial flow fan includes an impeller, an annular structure, and a plurality of connecting portions. The impeller has a plurality of blades, arranged radially. Each blade has an outer periphery. The outer periphery has a top portion. The annular structure is attached to the top portion of the outer periphery of each blade. Each connecting portion respectively connects each blade to the annular structure.
    Type: Application
    Filed: June 2, 2004
    Publication date: August 18, 2005
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20050169757
    Abstract: A fan assembly and impeller thereof. The fan assembly includes a plurality of blades and a hub. The hub includes an upper surface and a center point. The blades have bottom portions arranged in a circle on the upper surface with respect to the center point.
    Type: Application
    Filed: April 20, 2004
    Publication date: August 4, 2005
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20050040778
    Abstract: A fan motor speed control circuit includes a driving circuit, a voltage division circuit, and a speed modulator. The voltage division circuit has a first transistor and a plurality of resistors and is connected between a voltage source and the driving circuit. The speed modulator has a second transistor and a plurality of parallel resistors and is connected between the voltage division circuit and the driving circuit. The current of the fan motor speed control circuit flows through a first path under a first input voltage generated from the voltage source and through a second path under a second input voltage larger than the first one; the parallel resistors are in the second path such that the current value passing through the driving circuit varies according to the resulting resistance value of the parallel resistors.
    Type: Application
    Filed: June 4, 2004
    Publication date: February 24, 2005
    Inventors: Yu-liang Lin, Yueh-lung Huang, Tsung-yu Lei, Ju-wen Hsieh, Wen-shi Huang
  • Publication number: 20040201961
    Abstract: A heat-dissipating device and a housing thereof. The housing includes a passage for guiding an air stream flowing from an opening to another opening, wherein an inner wall of the passage at at least one of the opening sides extends radially outwards with a rotational axis of the heat-dissipating device or the passage so as to enlarge intake or discharge area for the air streams. Accordingly, the intake airflow rate may be greatly increased and the heat-dissipating efficiency of the heat-dissipating device may be greatly enhanced without changing assembling conditions with other elements.
    Type: Application
    Filed: July 23, 2003
    Publication date: October 14, 2004
    Inventors: Hao-Wen Ko, Tsung-Yu Lei, Kuo-Cheng Lin, Hsiou-Chen Chang
  • Patent number: 6779992
    Abstract: A composite heat-dissipating device is provided for significantly increasing the number and size of blades so as to enhance the heat-dissipating performance. The composite heat-dissipating device is constructed by a plurality of impellers, each of which includes a plurality of blades. When the plurality of impellers are assembled together, the plurality of blades are arranged around the hub of the composite heat-dissipating device and there is an overlapped region formed between every two adjacent blades.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: August 24, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Tsung-Yu Lei, Fu-Hau Tsai, Kuo-Cheng Lin, Wen-Shi Huang
  • Patent number: 6648065
    Abstract: A heat-dissipating module includes a heat sink and a fan device. The fan device may be disposed on the heat sink, or inserted into the heat sink to reduce the height. The fan device includes a first rotor blade and a second rotor blade. The first rotor blade and the second rotor blade are connected in series. The rotation speed of the first rotor blade is controlled by a first control circuit, and the second rotor blade is controlled by the second circuit. Thus, the second control circuit increases the rotation speed of the second rotor blades when the first rotor blades is failed.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: November 18, 2003
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Tsu-Liang Lin, Tsung-Yu Lei
  • Publication number: 20030202879
    Abstract: A cooling fan with high heat-dissipating performance includes a plurality of blades; and a frame for receiving the blades therein, wherein the frame has a reduced height for exposing the blades to outside of the frame so as to allow air to enter into the frame via a top portion and a peripheral portion of the blades to improve air introduction and heat dissipating efficiency of the cooling fan. A cover may be mounted to a top surface of the frame, and formed with a plurality of openings for allowing air to enter into the frame through the openings; such an arrangement cam effectively enhance air intake and working efficiency of the cooling fan.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 30, 2003
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Li-Kuang Tan, Tsung-Yu Lei, Wen-Ha Liu
  • Publication number: 20030185682
    Abstract: A composite heat-dissipating device is provided for significantly increasing the number and size of blades so as to enhance the heat-dissipating performance. The composite heat-dissipating device is constructed by a plurality of impellers, each of which includes a plurality of blades. When the plurality of impellers are assembled together, the plurality of blades are arranged around the hub of the composite heat-dissipating device and there is an overlapped region formed between every two adjacent blades.
    Type: Application
    Filed: June 18, 2002
    Publication date: October 2, 2003
    Inventors: Tsung-Yu Lei, Fu-Hau Tsai, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20020170703
    Abstract: A heat-dissipating module includes a heat sink and a fan device. The fan device may be disposed on the heat sink, or inserted into the heat sink to reduce the height. The fan device includes a first rotor blade and a second rotor blade. The first rotor blade and the second rotor blade are connected in series. The rotation speed of the first rotor blade is controlled by a first control circuit, and the second rotor blade is controlled by the second circuit. Thus, the second control circuit increases the rotation speed of the second rotor blades when the first rotor blades is failed.
    Type: Application
    Filed: May 9, 2002
    Publication date: November 21, 2002
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Tsu-Liang Lin, Tsung-Yu Lei
  • Publication number: 20020079086
    Abstract: An embedded centrifugal cooling device is disclosed. The embedded centrifugal cooling device includes a heat sink and a centrifugal fan. The heat sin includes a plurality of cooling fins defining a cavity. The centrifugal fan is formed in the cavity so as to be embedded into the heat sink. The present invention further includes a cover formed on the heat sink and the centrifugal fan to keep airtight substantially.
    Type: Application
    Filed: August 17, 2001
    Publication date: June 27, 2002
    Applicant: DELTA ELECTRONICS INC.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Tsu-Liang Lin, Tsung-Yu Lei
  • Fan
    Patent number: D509895
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: September 20, 2005
    Assignee: Delta Electronics Inc.
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Hao-Wen Ko, Hao-Ming Chen
  • Patent number: D485613
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: January 20, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Li-Hui Xiao, Te-Fu Chen, Yu-Liang Lin, Tsung-Yu Lei, Kuo-Cheng Lin
  • Patent number: D486158
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 3, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Patent number: D486572
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: February 10, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Te-Fu Chen, Ju-Wen Hsieh, Tsung-Yu Lei
  • Patent number: D486906
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: February 17, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Li-Hui Xiao, Te-Fu Chen, Yu-Liang Lin, Tsung-Yu Lei, Kuo-Cheng Lin
  • Fan
    Patent number: D487800
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: March 23, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Te-Fu Chen, Ju-Wen Hsieh, Tsung-Yu Lei
  • Patent number: D492654
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: July 6, 2004
    Assignee: Delta Electronics Inc.
    Inventors: Tsung-Yu Lei, Fu-Hau Tsai, Kuo-Cheng Lin, Wen-Shi Huang
  • Patent number: D494548
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: August 17, 2004
    Assignee: Delta Electronics, Inc.
    Inventors: Fu-Hau Tsai, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang