Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having tangential inlet or outlet
Patent
1984-11-19
1988-04-05
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing having tangential inlet or outlet
415219C, F01D 108
Patent
active
047355514
ABSTRACT:
A radial blower is provided with a spiral shape casing, which has an input port for the medium to be moved and an output port for the medium to be delivered. The input port is disposed on the side of the casing in the direction of a spiral axis and where the center of the input port is displaced relative to the center of the spiral. The output port connects the start of the spiral section to the end of the spiral section and forms a connection piece. The output port according to the invention increases in its cross-section continuously while going from the connection point of the spiral to the outer end. Preferably a protruding nose is placed at the junction point of the output port and of the smaller radius side of the spiral for enhancing the pushing power of the fan blades versus the medium and for reducing the flow resistance of the output port to the medium stream. This reduces the power requirements of the motor and increases the slope of the characteristic line for the dependence of the pressure on amount of medium flowing through.
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Garrett Robert E.
Kapser Horst M.
Kwon John T.
Vaillant GmbH u. Co.
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