Telescopic Ventilation Element for Adjustable Window Wall Thickness
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Solution Overview
Problem
Existing ventilating elements require manual adjustment of supports to accommodate different window wall thicknesses, limiting their adaptability and efficiency in air flow management.
Innovation Solution
A ventilating element with two extruded shells and a telescopically adjustable support featuring a 3D design and self-regulating stop valves, allowing for adjustable width and enhanced air flow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If supports are made fixed with a single width dimension, then manufacturing and installation are simplified, but adaptability to different window wall thicknesses is lost
Solution Approach 1:
The support comprises a first support part and a second support part that can be nested within each other telescopically. The second support part is insertable into the first support part, allowing the support to be adjusted to different widths while maintaining a compact structure when not in use.
Solution Approach 2:
The support transitions from a static fixed-width structure to a dynamic adjustable-width structure. The telescopic mechanism allows the support to change its width dynamically to match different window wall thicknesses, improving adaptability.
2Productivity
If air passage openings are provided in aluminium jambs and supports, then air flow from outside to inside is enabled, but insulation performance deteriorates
Solution Approach 1:
Different parts of the ventilating element have different properties: the plastic support provides thermal insulation where needed, while the air passage openings provide ventilation functionality. The stop valve selectively controls air flow to maintain insulation when ventilation is not required.
Solution Approach 2:
The self-regulating stop valve responds to pressure differences and automatically adjusts the air flow. When the pressure difference exceeds a certain threshold, the stop valve closes to prevent excessive air flow and maintain thermal insulation performance.
3Extent of automation
If stop valves are made manually operable only, then simple construction is maintained, but automation and energy efficiency are limited
Solution Approach 1:
The stop valve is designed to regulate air flow automatically based on pressure differences without requiring external control. The valve opens when pressure difference is within acceptable range and closes when it exceeds the threshold, providing self-regulating functionality.
Solution Approach 2:
The manual mechanical operation of the stop valve is replaced with an automatic mechanism that responds to pressure differences. This substitution enables automated air flow regulation while maintaining mechanical simplicity.
Data Source
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AI summary
Ventilating element comprising two extruded shells, namely an inner shell (2) and an outer shell (3), and a support (4) provided between the aforesaid shells (2,3), whereby the support (4) is provided with an air passage (5) reaching from the inner shell (2) to the outer shell (3), whereby the support (4) is built of two blocks (6 and 7) on which are respectively provided the inner shell (2) and the outer shell (3), characterised in that the two blocks (6 and 7) are telescopically adjustable.