Device for introducing and discharging cooling air

Details Device for introducing and discharging cooling air Device for introducing and discharging cooling air

1997-11-21

2000-02-15

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

416169A, 416192, 416194, 416195, 4152101, 4151736, 4152082, 4152112, F28F 1306

Patent

active

060245360

ABSTRACT:
The object of the invention is to prevent the quantity of airflow by a fan from decreasing in dependence on the distance between the fan and obstacles such as an engine in a device for introducing and discharging cooling air having a shroud with a high covering rate. In the device for introducing and discharging cooling air having the shroud with the high covering rate, an airflow direction changing member is provided downstream of the fan, and each fixed blade of the member has a shift angle in the radial direction and an attack angle in a rotation direction of the fan, so that the air tends to be discharged outward in the radial direction.

REFERENCES:
patent: 4358245 (1982-11-01), Gray
patent: 4548548 (1985-10-01), Gray, III
patent: 4569632 (1986-02-01), Gray, III
patent: 5244347 (1993-09-01), Gallivan et al.
patent: 5297931 (1994-03-01), Yapp et al.
patent: 5342167 (1994-08-01), Rosseau
patent: 5466120 (1995-11-01), Takeuchi et al.
patent: 5624234 (1997-04-01), Neely et al.
patent: 5758716 (1998-06-01), Shibata

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