Atomizing Nozzle Valve Element Guidance for Drip Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing atomizing nozzle arrangements face challenges in preventing dripping when the atomization process is stopped, requiring high precision in manufacturing that increases costs.
Innovation Solution
The valve element is fixed in a guidance element guided within the housing, which ensures precise positioning and tight closure without the need for high-precision manufacturing, using a guidance element with a circular cross-section and flattened sections to facilitate alignment and sealing, and an elastically deformable valve element for enhanced tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high precision manufacturing is used for the valve and valve seat, then the valve closing tightness is improved, but the manufacturing cost increases
Solution Approach 1:
A guidance element is introduced as an intermediary component between the valve element and the housing. This guidance element provides precise positioning and guiding for the valve element, ensuring accurate alignment with the valve seat without requiring high-precision manufacturing of the valve components themselves. The guidance element acts as a mediator that achieves the desired positioning precision through its own structural design (circular cross-section with flattened sections) rather than through expensive precision machining of the valve and seat.
2Device complexity
If the valve element is freely positioned, then the manufacturing complexity is reduced, but the alignment precision with the valve seat deteriorates
Solution Approach 1:
The guidance element serves as a mediator that provides the necessary alignment and positioning functions. Instead of making the valve element itself complex with integrated positioning features, the guidance element is introduced as a separate component that guides the valve element into the correct position. This separates the complexity of alignment into the guidance element while keeping the valve element relatively simple.
Solution Approach 2:
The valve assembly is segmented into distinct functional components: the valve element, the guidance element, and the housing. The guidance element is a separate component that specifically handles the alignment and positioning function, while the valve element focuses on the sealing function. This segmentation allows each component to be optimized for its specific function without requiring high precision across all components.
3Productivity
If additional bypass channels are added around the guidance element, then the flow capacity is improved, but the device complexity increases
Solution Approach 1:
The guidance element features localized flattened sections on its circumference rather than being completely solid or having complex internal channels. These flattened sections create gaps that allow liquid to bypass the guidance element, providing flow capacity while maintaining the simple cylindrical structure with localized modifications rather than complex overall redesign.
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 solution effectively prevents dripping by ensuring precise alignment and sealing, reducing manufacturing costs while maintaining the nozzle's tightness and efficiency in atomizing liquids.
Implementation Method 1
the valve element is made of a elastically deformable material... it can be pressed against the valve seat to achieve the required tightness
Implementation Method 2
The circular cross section of the guidance element has a diameter which is slightly smaller than the diameter of the circular cross section of the bore, so that the guidance element can be moved in the bore with low friction, however, with sufficient guiding or alignment
Data Source
AI summary
An atomizing nozzle arrangement (1) includes a housing (2, 3) having an inlet (23), 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). In such an atomizing nozzle arrangement dripping should be avoided. To this end, the valve element (7) is fixed in a guidance element (12) which is guided in a bore (16) of the housing (2, 3).