Fan system

EP4710047A1Pending Publication Date: 2026-03-18PROFANT RENE
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2026-03-18

AI Technical Summary

Technical Problem

Existing ventilation systems in buildings require separate operational and fire smoke ventilation systems, leading to structural complexity, high costs, and increased space requirements, as well as premature wear and maintenance issues due to the misuse of fire gas fans for continuous operation.

Method used

A fan system with a tiltable axial fan mounted within an outer tube, allowing the fan axis to align parallel or perpendicular to the flow direction, enabling efficient operational ventilation while adapting for fire smoke ventilation without additional space or maintenance, using a cover to reduce flow resistance and incorporating a servomotor for automatic tilting during fires.

Benefits of technology

The fan system provides a space-saving, low-maintenance solution suitable for both operational and fire smoke ventilation, reducing structural complexity and operational costs while ensuring efficient airflow and reduced wear on components.

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Abstract

The invention relates to a fan system and to a method for controlling a fan system with two operating states, comprising an outer tube (1), wherein the outer tube (1) defines a direction of flow that runs parallel to the inner wall of the outer tube (1), and comprising a fan, in particular a first fan (2), which is arranged within the outer tube (1), wherein the fan (2) is an axial fan. According to the invention, the fan (2) is mounted tiltably in the outer tube (1), wherein the axis of rotation of the fan (2) is oriented parallel to the direction of flow in a first operating position and is oriented normal to the direction of flow in a second operating position, tilted in particular through 90°.
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