COUNTERFLOW CROSS-FLOW FAN Russian patent published in 2005 - IPC

FIELD: mechanical engineering; fan building.

SUBSTANCE: proposed fan can be used in industry and agriculture. Novelty is that in cross-flow fan which has housing with inlet port and outlet connection and flat wall separating them and equipped with louver grid, impeller installed in housing and straight - line wall mating with fan housing higher than inlet port, said straight-line wall, installed parallel to separating flat wall, forms channel. Fan housing behind inlet edge is provided with window in which curvilinear planes are installed by their outlet sections to form contraction channels connected through inlet section, located higher than inlet edge, with inlet channel.

EFFECT: increased pressure and air flow rate developed by fan, reduced noise level.

1 dwg