Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Reexamination Certificate
2005-06-07
2005-06-07
Nguyen, Ninh H. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
C416S234000, C416S243000
Reexamination Certificate
active
06902377
ABSTRACT:
A fan impeller is part of a fan assembly designed to maximize both intake and expelled air during use. The fan impeller employs a distinct airfoil shape for the fan blades to substantially move the ambient air. A low constant blade angle and overlapping blades are employed to improve the blade lift and consequent mass flow and exit pressure. The blade stall is eliminated, as evidenced by a smoothened fan curve, for more efficient operation. The blade sweep angle is optimally arranged to control radial flow characteristics of the ambient air. Housing sidewalls are removed from the fan assembly to remove parasitic drag and improve the motion of air passing through the fan.
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Johnson Pat, “Intel Thermal Reference Design: High-Performance Air Cooled Desktop Solution,” Proceedings of the Intel Developer Forum 2003, Sep. 18, 2003, retrieved from the Internet on Jan. 13, 2005: <URL: http://www.intel.com/idf/us/fall2003/presentations/FQ3USDSIS87_OS.pdf>.
Boone P.C. Carrie A.
Intel Corporation
Nguyen Ninh H.
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