Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Means to seal radial flow pump runner inlet from outlet
Patent
1980-12-19
1983-08-02
Hornsby, Harvey C.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Means to seal radial flow pump runner inlet from outlet
415182, 416236A, 416241A, 416189, 123 4149, F01D 520, B63H 116, F01P 710
Patent
active
043963510
ABSTRACT:
An engine cooling fan driven by an engine and located in a shroud extending from a radiator to the engine including a hub having a cylindrical rear end portion for mounting the fan on the engine, a plurality of blades provided on the hub and a ring fixedly provided on tip portions of the blades and extending in an axial direction so as to fully encircle the tips of the blades and forming a radial clearance between the shroud and the ring, the ring including a rear end portion positioned axially rearwardly of the cylindrical rear end of the shroud and extending radially outwardly of the shroud thereby restricting air flow from the rear side of the fan into the radial clearance formed between the shroud and the ring.
REFERENCES:
patent: 3189982 (1965-06-01), Merz
patent: 3842902 (1974-10-01), Poslusny
patent: 4128363 (1978-12-01), Fujikake et al.
patent: 4189281 (1980-02-01), Katagiri et al.
patent: 4213426 (1980-07-01), Longhouse
Hayashi Masaharu
Hori Takanobu
Tsuchikawa Shunzo
Aisin Seiki Kabushiki Kaisha
Bian Shewen
Hornsby Harvey C.
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