Oppositely skewed counter-rotating fans

Details Oppositely skewed counter-rotating fans Oppositely skewed counter-rotating fans

1997-10-17

1999-08-03

Ryznic, John E.

Fluid reaction surfaces (i.e., impellers)

Plural impellers having relative movement or independent...

Coaxial rotation

416238, 416169A, B63H 510, F01D 124

Patent

active

059316403

ABSTRACT:
A counter-rotating fan which comprises a forward-skewed upstream rotor and a backskewed downstream rotor. The counter-rotating fan may be used in a cooling module with a heat exchanger, for example as an engine cooling fan in a vehicle.

REFERENCES:
patent: 162619 (1875-04-01), Browne
patent: 3127093 (1964-03-01), Sudrow
patent: 4306839 (1981-12-01), Pien
patent: 4548548 (1985-10-01), Gray, III
patent: 4840221 (1989-06-01), Dumas et al.
patent: 4907645 (1990-03-01), Dumas et al.
patent: 4969800 (1990-11-01), Parry et al.
patent: 5320493 (1994-06-01), Shih et al.

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