Passive Siphon Drainage for Wind-Driven Sliding Door Water Intrusion
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Solution Overview
Problem
Current water intrusion mitigation systems for sliding doors and windows fail to effectively drain water during high wind and heavy rainfall events, leading to wind-driven water intrusion and subsequent interior damage, and existing detachable devices lack mechanisms for removing accumulated water.
Innovation Solution
A passive siphon-based drainage system using an inverted U-shaped tube with a proximal inlet, crest, and distal outlet, configured to operate autonomously through gravity and wind-induced pressure differentials to remove water from sliding door and window tracks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If integrated weep holes are used for water drainage, then water can drain through during normal rainfall, but drainage capacity is insufficient during high wind and heavy rainfall events
Solution Approach 1:
The drainage system is divided into multiple functional components: vertical weep holes in the track, horizontal drainage holes in the sill, and an optional siphon tube. This segmentation allows each component to handle specific drainage tasks, with the siphon tube providing enhanced capacity during extreme events while the weep holes handle normal rainfall.
Solution Approach 2:
The siphon tube acts as an intermediary drainage mechanism that activates when water accumulation exceeds the capacity of the weep holes and horizontal drainage holes. It provides an additional drainage pathway that engages during high wind and heavy rainfall events to prevent water intrusion.
2Object-affected harmful factors
If physical barriers are placed to block water, then water accumulation is inhibited, but accumulated water cannot be drained
Solution Approach 1:
The invention combines physical barrier functions (weep holes and horizontal drainage holes that block and redirect water) with active drainage mechanisms (the siphon tube that removes accumulated water). This merging ensures that both water prevention and drainage functions are achieved simultaneously.
Solution Approach 2:
The siphon tube provides self-service drainage by automatically removing accumulated water through gravity-driven flow when water levels rise, without requiring external intervention. The system serves itself by using the accumulated water's own weight to activate the drainage mechanism.
3Productivity
If weep holes are used for drainage, then water can exit the track, but dynamic wind pressure prevents water from draining
Solution Approach 1:
The siphon tube serves as an intermediary drainage pathway that bypasses the weep holes when wind pressure prevents them from functioning. Water flows through the siphon tube's inlet, crest, and outlet in a continuous stream, eliminating the impact of wind pressure on the drainage process.
Solution Approach 2:
The invention replaces the pressure-dependent mechanical drainage of weep holes with a gravity-driven siphon system. The siphon tube uses gravity and atmospheric pressure differentials to move water, substituting the wind-pressure-dependent mechanism with a more reliable gravity-based system that functions independently of wind conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively mitigates wind-driven water intrusion by enhancing drainage capacity without requiring electrical power or manual intervention, reducing the risk of interior damage and improving building resilience.
Implementation Method 1
configured to operate autonomously through gravity and wind-induced pressure differentials
Implementation Method 2
passive siphon-based drainage system using an inverted U-shaped tube
Data Source
AI summary
An apparatus for siphoning accumulated water from sliding windows, door sills, and tracks can comprise (1) a tube comprising (a) a proximal end comprising an inlet; (b) a distal end comprising an outlet; (c) a crest intermediate the proximal end and the distal end; and (d) a transfer section intermediate the crest and the distal end. The apparatus is configured such that the accumulated water passively traverses through the tube via the inlet, through the crest, through the transfer section, and out of the apparatus via the outlet.