L-Shaped Fitting With Nested Hose For Dual Fluid Delivery
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Solution Overview
Problem
Existing fittings for providing multiple fluids, such as water in kitchens or bathrooms, often pose challenges in separating and handling different fluid types safely and efficiently, particularly in reducing the risk of overheating and complex assembly processes.
Innovation Solution
A fitting with an L-shaped outlet design featuring separate flow paths for each fluid, where the second fluid flows through a hose within the outlet, and an elbow for sharp deflection, along with a perforated disk and rotatable connection for easy assembly and maintenance, ensuring the second fluid does not heat the outer surface and allowing for separate control of both fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the second fluid (e.g., boiling water) is guided in an inner channel surrounded by an outer channel for the first fluid, then the risk of injury due to excessive heating of the outer surface is reduced, but the device complexity increases due to nested channel structures
Solution Approach 1:
The patent implements a nested channel structure where the second fluid channel (for boiling water) is positioned inside the first fluid channel (for cold water). The inner channel carries the hot second fluid while the outer channel carries the cold first fluid, creating a thermal insulation effect that prevents the outer surface from overheating while maintaining a compact dual-fluid delivery system
2Ease of operation
If separate flow paths for first fluid and second fluid are provided, then the fluids can be controlled separately, but the outlet structure becomes more complex
Solution Approach 1:
The outlet is divided into distinct flow paths: an inner flow path for the second fluid (boiling water) and an outer flow path for the first fluid (cold water). Each flow path has its own valve (second valve for inner path, first valve for outer path) that adjoins the inlet side of the outlet, enabling independent control of each fluid while maintaining a unified outlet structure
3Adaptability or versatility
If the outlet has a complex shape to accommodate multiple flow paths, then separate fluid delivery is enabled, but the manufacturing process becomes more difficult
Solution Approach 1:
The outlet is designed as a nested structure where the inner channel for the second fluid is positioned within the outer channel for the first fluid. This nested configuration allows the complex multi-fluid delivery functionality to be achieved through concentric cylindrical shapes that are relatively simple to manufacture using standard piping and fitting techniques
Data Source
Figure 1
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Figure 4~5
AI summary
Fitting (16) for providing at least one first fluid and one second fluid, comprising at least one outlet (17) with at least one main flow path (18) for a first fluid and at least one separate auxiliary flow path (3) for a second fluid, wherein the auxiliary flow path (3) is formed at least partially in a hose (5) arranged within the outlet (17), wherein the main flow path (18) is formed at least partially in an intermediate space (19) between the hose (5) and the outlet (17), wherein the outlet has an L-shape, and wherein the second fluid can flow out of an outlet opening (10) from the outlet (17) at a right angle to the outlet (17).