Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate
2006-09-25
2009-12-15
Kershteyn, Igor (Department: 3745)
Rotary kinetic fluid motors or pumps
With sound or vibratory wave absorbing or preventing means...
C415S173600, C415S228000, C416S16900R, C416S189000, C416S192000, C416S195000, C416S500000
Reexamination Certificate
active
07632063
ABSTRACT:
A fan has a plurality of blades extending in a radial direction with respect to a rotation axis and a ring portion disposed on radial outside edges of the blades. Further, the fan has a first connecting wall and a second connecting wall. The first connecting wall extending from the ring portion to a portion of the radial outside edge of each blade, the portion protruding from the ring portion toward an upstream position with respect to an air flow direction. The second connecting wall has a generally triangular shape. The second connecting wall continuously extends from the first connecting wall and connects to the ring portion on a leading side of the first connecting wall with respect to a rotation direction of the blade. The fan is for example housed in a shroud, thereby to construct a blower unit.
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Iwasaki Takahiro
Oda Shin-ichi
Takeuchi Kazuhiro
Denso Corporation
Harness Dickey & Pierce PLC
Kershteyn Igor
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