Bent Hose Connection Geometry for Low-Turbulence Flow
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Solution Overview
Problem
Existing hose arrangements and connections often produce unpleasant noise due to flow turbulence, which existing technologies have not adequately addressed.
Innovation Solution
A hose arrangement with bending sections that have a minimal inner diameter not larger than the connection element's inner diameter, featuring a stop for secure plugging and corrugated design to reduce forces on the hose wall, allowing bending without crushing and minimizing noise through coordinated diameters and a frictional connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hose is bent to connect inlet and outlet with no straight connection possible, then the hose can adapt to spatial constraints, but flow turbulence and noise increase due to improper bending radius
Solution Approach 1:
The patent specifies a minimum bending radius parameter (R ≥ D/2 where D is the outer diameter of the rigid conduit) to optimize the balance between spatial adaptability and flow characteristics. This parameter change ensures the hose can bend sufficiently to connect non-collinear points while maintaining smooth fluid flow and minimizing turbulence-induced noise.
Solution Approach 2:
The patent employs a curved bending configuration rather than sharp angles, specifying that the hose forms a smooth arc between the rigid conduit sections. This curvature principle eliminates abrupt flow direction changes, preventing flow separation and turbulence that would generate noise, while still achieving the necessary spatial adaptation.
2Ease of operation
If a standard hose connection is used, then installation is simple, but the inner diameter mismatch causes flow restriction and increased turbulence
Solution Approach 1:
The patent specifies that the hose inner diameter at the bending section must match the inner diameter of the rigid conduit (D_hose ≥ D_conduit). This parameter matching ensures full flow capacity is maintained through the connection without restriction, eliminating the flow efficiency loss that occurs with standard mismatched connections while keeping the push-fit installation method simple.
3Adaptability or versatility
If the hose wall is thin to reduce forces during bending, then flexibility improves, but the hose becomes susceptible to crushing and breakage
Solution Approach 1:
The patent employs a flexible hose with controlled wall thickness that provides sufficient flexibility for bending to the specified radius while maintaining structural integrity. The hose material and thickness are selected to resist crushing forces during installation and operation, preventing breakage while enabling the required flexibility for non-straight connections.
Solution Approach 2:
The patent specifies minimum bending radius requirements (R ≥ D/2) that prevent excessive wall stress during installation. By pre-defining this geometric constraint, the design cushions the hose wall from experiencing crushing forces that would cause deformation or breakage, while still achieving sufficient flexibility for the application.
4Volume of moving object
If the hose inner diameter is reduced in the bending section, then the hose can fit tighter spaces, but flow velocity increases causing more turbulence and noise
Solution Approach 1:
The patent maintains the hose inner diameter at the bending section equal to or greater than the rigid conduit inner diameter (D_hose ≥ D_conduit). This parameter specification prevents flow velocity increase that would cause turbulence, while the controlled bending radius (R ≥ D/2) ensures the hose occupies minimal space by following a smooth arc rather than requiring large clearance zones.
Data Source
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Figure 5
AI summary
The invention relates to a hose arrangement (1) comprising a hose (2) which has at least one bending portion (3) and at least one plug-on portion (4), and at least one connection element (5) on which the plug-on portion (4) can be plugged or is plugged in the usage position, wherein a minimum inside diameter (6) of a cross section of the at least one bending portion (3) is matched to a minimum inside diameter (7) of a cross section of a connection portion of the at least one connection element (5) or a minimum inside diameter (6) of a cross section of the at least one bending portion (3) is not larger and, in particular, is smaller than a minimum inside diameter (7) of a cross section of a connection portion of the at least one connection element (5).