Atomizing Nozzle Valve Geometry for Low-Noise Closure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing atomizing nozzle arrangements often produce noise due to turbulence and vibrations when closing the valve, leading to potential dripping issues.
Innovation Solution
The combination of a guidance element with a smooth transition surface and a valve element, along with a gap between the guidance element and the bore, ensures a well-defined non-turbulent flow and reduced vibrations by maintaining a liquid layer, accelerating the liquid, and using a symmetrically curved surface for tight closure, and elastically deformable materials for misalignment compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the valve element is moved away from the valve seat for atomization, then liquid flow is enabled, but turbulence and vibrations occur causing noise
Solution Approach 1:
The valve element features a curved surface that transitions smoothly from the valve seat contact area to the flow area. This curvature eliminates abrupt edges and corners that would cause turbulence, allowing liquid to flow smoothly during atomization while preventing the vibrations that generate noise.
Solution Approach 2:
The invention modifies the geometric parameters of the valve element, specifically the surface profile and transition zones. By optimizing the curvature radius and surface contour, the design achieves a balance between enabling sufficient liquid flow for atomization and minimizing turbulence-induced vibrations and noise.
2Reliability
If the valve closes tightly to prevent dripping, then sealing is improved, but vibrations may occur during closure
Solution Approach 1:
The curved surface of the valve element ensures gradual contact with the valve seat during closure, distributing the sealing force over a larger area and reducing impact shocks. This smooth transition minimizes vibrations while maintaining reliable sealing to prevent dripping.
3Stability of the object's composition
If the guidance element contacts the bore wall for stability, then positioning is improved, but turbulence increases causing noise
Solution Approach 1:
The invention introduces a fluid layer as an intermediary between the guidance element and the bore wall. This liquid film maintains the necessary gap to prevent direct contact and turbulence, while still providing sufficient guidance and stability for proper valve alignment through hydrodynamic effects.
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
This design minimizes noise and ensures complete valve closure, reducing the risk of vibrations and dripping while maintaining efficient atomization.
Implementation Method 1
The valve element is made of an elastically deformable material
Implementation Method 2
There is always a liquid layer between the guidance element and the inner wall of the bore
Implementation Method 3
The smooth transition of the surface of the combination of valve element and guidance element allows a well-defined non-turbular flow of the liquid to be atomized along the valve element
Implementation Method 4
The cone element can also be used to set the liquid which should be atomized in a rotational motion
Data Source
AI summary
An atomizing nozzle arrangement (1) is described including a housing (2, 3) having an inlet, a valve seat (6), a valve element (7) interacting with the valve seat (6), restoring means (8) acting on the valve element (7), and an orifice (9), wherein the valve element 7 cooperates with a guidance element (12) which is arranged in a bore of the housing (2, 3). In such an atomizing nozzle arrangement noise should be kept low. To this end, a combination of the guidance element (12) and the valve element (7) includes a surface having a smooth transition in a direction away from the valve seat (6).