Radial fan
First Claim
Patent Images
1. An impeller comprising:
- a hub moveable about a hub axis;
a plurality of blades having spaced first and second ends, the first ends of the blades attached to the hub;
an annular nozzle-like plate attached to the second ends of the blades; and
an annular guide attached to the plate and spaced so as to define a radial passage therebetween.
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Abstract
The invention concerns a radial fan (1), especially as a fan for the cooling unit (2) of a vehicle. The fan includes an impeller (3) with radial blades (4), a cover disc (5) designed nozzle-like, and an air guide ring (6), as well as a stationary inflow nozzle (8). An axial air gap (10) is provided between the cover disc (5) and the co-rotating air guide ring (6).
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Citations
19 Claims
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1. An impeller comprising:
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a hub moveable about a hub axis; a plurality of blades having spaced first and second ends, the first ends of the blades attached to the hub; an annular nozzle-like plate attached to the second ends of the blades; and an annular guide attached to the plate and spaced so as to define a radial passage therebetween. - View Dependent Claims (2, 3, 4, 5)
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6. A fan comprising:
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a nozzle-like inlet piece with an opening therethrough; a hub moveable about an axis relative to said nozzle-like inlet piece; a plurality of blades having spaced first and second ends, the first ends of the blades attached to the hub; an annular nozzle-like plate attached to the second ends of the blades, the plate spaced from the inlet piece to define a gap therebetween; and an annular guide attached to the plate in the gap and spaced from the plate to define a passage therebetween. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A combination fan and cooling unit device for a vehicle including an engine, the device comprising:
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a radial impeller rotatable about an axis, the radial impeller having an outer circumference; a plurality of heat exchangers arranged around the outer circumference of the radial impeller in a nominally polygonal shape to receive radially outwardly directed air flow from the radial impeller, each of the heat exchangers having a length dimension extending perpendicular to said axis and defining a side of said nominally polygonal shape, at least two of said length dimensions being unequal to each other, at least one of the plurality of heat exchangers being a coolant cooler, and at least another of the plurality heat exchangers being a condenser. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification