Fluid reaction surfaces (i.e. – impellers) – Ambient fluid or exhaust gas directed through hub – fairing...
Patent
1974-12-19
1976-11-23
Weakley, Harold W.
Fluid reaction surfaces (i.e., impellers)
Ambient fluid or exhaust gas directed through hub, fairing...
416201A, 416203, 416245R, 123 4149, 192113A, B63H 120
Patent
active
039934152
ABSTRACT:
In a fan with a fluid friction clutch wherein the housing of the clutch is connected with the fan or has fan blades attached thereto and wherein the surface of the clutch housing facing the air intake opening of the fan is provided with cooling ribs to carry off slippage heat, the improvement comprises flow direction means for reducing the effects of the secondary air flow around the clutch housing. The flow directing means comprise either the cooling ribs on the surface of the clutch housing facing the air intake opening of the fan which ribs are curved at the outer edges thereof in a direction reverse to that of the rotation of the fan; cooling ribs of construction angled in reverse direction to that of the direction of rotation of the fan; annular cooling ribs; or cooling ribs of conventional radial arrangement covered by a flow directing intake housing.
REFERENCES:
patent: 3250355 (1966-05-01), Weir
patent: 3385516 (1968-05-01), Omohundro
patent: 3758231 (1973-09-01), Barnstead
patent: 3885888 (1975-05-01), Warhol
patent: D110876 (1938-08-01), Preston
patent: D131271 (1942-02-01), Collura
Suddeutsche Kuhlerfabrik Julius Fr. Behr
Weakley Harold W.
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