Fan device for high torque output
OwnerShun-Tsung LUinventor
Life of this patent
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Abstract
A fan device for high torque output has two base plates, multiple fans, and a spindle. The base plates are mounted parallel to each other. The fans are mounted between the base plates, and each fan has an inner side, an outer side, and an inflection point. The spindle is connected with one of the base plates and is located at a middle position of the base plate. A connecting line that connects the inflection point and the spindle is out of an area defined between a connecting line that connects the spindle and the inner side and a connecting line that connects the spindle and the outer side when the inflection point, the inner side, and the outer side are located at the same horizontal plane. Therefore, each fan has a large frontal area to be pushed by fluid.
Claims15
A fan device comprising:
- two base plates mounted parallel to each other;
- multiple fans circularly mounted between the base plates and with intervals between the fans, wherein each fan is elongated and has a longitudinal direction defined from one of the base plates to the other of the base plates;
- an outer side formed on the fan along the longitudinal direction;
- an inner side formed on the fan along the longitudinal direction;
- and
- a driven portion formed between the outer side and the inner side and having an inflection point at a horizontal plane across the fan;
- a spindle mounted on one of the base plates, located in a middle position of the base plate that is mounted with the spindle, being nearer to the inner sides than to the outer sides, and having a longitudinal direction parallel with the longitudinal directions of the fans;
- wherein
- a connecting line that connects the inflection point and the spindle is located out of an area defined between a connecting line that connects the outer side and the spindle and a connecting line that connects the inner side and the spindle when the inflection point, the inner side, and the outer side are located at the same horizontal plane.
Dependencies are inferred from the claim text.