Flow Rectifier for an Axial Fan

摘要

A flow rectifier (1) for an axial fan (2), having a base body (3) which has rings (4a, 4b, 4c, 4d, 4e) delimited radially inside the outside by cylindrical surfaces (5, 6). Air guide vanes (7) which are distributed in the circumferential direction about a longitudinal axis (X-X) arranged in a generally radial manner and extend between the cylindrical surfaces (5, 6). The air guide vanes (7), in the circumferential direction, extend with a curvature (R1) relative to the axial direction (X-X) between an inflow-side vane edge (7a) and an outflow-side vane edge (7b). In order to minimize the divergence of airflow from the flow rectifier (1), two or more rings (4a, 4b, 4c, 4d, 4e) having air guide vanes (7) are provided in the base body (3).

主权项

1. A flow rectifier for an axial fan, having a base body, comprising two or more rings, each delimited radially by cylindrical inside and outside curved surface areas, a plurality of air guide blades, which are distributed in a circumferential direction about a longitudinal axis, and which are disposed in a generally radial manner such that they extend between the curved surface areas, wherein, when viewed in a circumferential direction, the air guide blades extend with a curvature relative to the axial direction, extending between an inflow-side blade edge and an outflow-side blade edge, wherein at least one of the inflow-side and the outflow-side blade edges of the air guide blades has a varying height in a radial direction, and the defining a curvature.