Patent ID: 11913471
Assignee: EBM-PAPST AB
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An air guide arrangement for a ventilation system, comprising:
a housing forming a flow channel and a fan arranged for generating an airflow through the flow channel of the housing;
a flow guide device is arranged in the flow channel of the housing, the flow guide device is separate and distinct from the housing, the flow guide device, when viewed as a whole, is cuboid and is axially positioned downstream of the fan on an outflow side and which directly influences the airflow generated by the fan, the flow guide device includes a tubular element, flow segments and an outer wall, the tubular element has an axis-central through opening delimited by the tubular element extending parallel to the flow direction, the multiple separate flow segments are formed around the tubular element;
the flow segments are evenly distributed in the circumferential direction, the flow segments are each separated from one another in terms of flow by flow guide elements, the flow guide elements extend radially outward from the tubular element to the flow guide outer wall and the flow guide element extends uninterrupted from the tubular element radially toward the outer wall and in the axial flow direction completely through the flow guide device and wherein, viewed in a radial direction, the flow guide elements are bent on a first marginal section at an inflow side edge and straight on a second marginal section at an outflow side edge and a continuous transition is between the first and second sections; and
an effective throughflow cross-sectional area of the individual flow segments varies in an axial direction.