Passive ventilation system and building comprising the former for enhanced air circulation and thermal efficiency

The passive ventilation system addresses high energy consumption in building ventilation by using a central column with a Venturi effect and thermal buoyancy to enhance airflow, achieving energy-efficient and sustainable natural ventilation with reduced reliance on mechanical systems.

EP4768804A1Pending Publication Date: 2026-07-01OPRIMEE - INNOVATION DESIGN ENGINEERING SOLUTIONS LDA +2
View PDF 4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
OPRIMEE - INNOVATION DESIGN ENGINEERING SOLUTIONS LDA
Filing Date
2025-12-30
Publication Date
2026-07-01

Smart Images

  • Figure IMGF0001
    Figure IMGF0001
  • Figure IMGF0002
    Figure IMGF0002
  • Figure IMGF0003
    Figure IMGF0003
Patent Text Reader

Abstract

The disclosed technology relates to a passive ventilation system for buildings, designed to enhance air circulation and reduce reliance on mechanical ventilation systems. The system features a hollow central column with air outlets on its outer surface to capture air from the building interior. An air nozzle within the column accelerates the airflow, directing it through an upper and lower panel that form an air passage, creating a low-pressure zone to expel air passively. The system integrates seamlessly into buildings, with a central column foundation, a base platform, and parallel floor slabs. The air outlets are strategically located between the slabs, enabling air circulation from multiple floors through the central column, which expels it to the exterior without mechanical assistance. This innovative design ensures improved thermal comfort and energy efficiency, making it ideal for use in commercial, residential, and office buildings.
Need to check novelty before this filing date? Find Prior Art