Rotating Nozzle Device Fluid-Driven Stability
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Solution Overview
Problem
Existing rotating nozzle devices experience wobbling rotational movements and limited speed regulation due to mechanical friction, making them unsuitable for fluids with varying viscosities and properties like gases, oils, and vapors, and posing challenges in maintaining hygienic conditions and operational stability.
Innovation Solution
A rotating nozzle device with off-centre, inclined fluid inlet openings on the inflow part that induce tangential fluid flows, creating a constant rotational moment independent of fluid pressure and flow rate, allowing for stable, non-wobbling rotor movement and adjustable speed control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a swirl-generating device with helical grooves is used to drive the nozzle body, then the nozzle can rotate, but the rotational movement becomes wobbly and mechanical friction increases
Solution Approach 1:
The patent replaces the mechanical swirl-generating device with a purely fluid-driven rotation system. Fluid jets are directed through off-center openings in the rotor part, creating tangential flows that generate rotational moment without mechanical contact. This eliminates mechanical friction and wobbling while maintaining controlled rotational speed.
Solution Approach 2:
The invention uses fluid dynamics to drive rotation instead of mechanical means. By directing fluid through strategically positioned openings, the fluid flow itself generates the rotational force through momentum transfer. This hydraulic/pneumatic approach eliminates the need for mechanical bearings and swirl-generating structures.
2Ease of operation
If nozzle openings are offset laterally in radial direction to enable rotation, then the nozzle can rotate, but speed regulation becomes limited and friction increases
Solution Approach 1:
The patent eliminates mechanical friction surfaces by using purely fluid-driven rotation. The rotor part rotates due to fluid momentum transfer through off-center openings, removing the need for defined friction surfaces on bearing elements. This simplifies the device while enabling better speed control.
3Stability of the object's composition
If tight dimensional tolerances are maintained for plain bearings to minimize wobble, then rotational stability improves, but manufacturing complexity increases
Solution Approach 1:
The invention replaces mechanical bearings with a fluid-driven rotation system. By eliminating the need for plain bearings entirely, the patent removes the requirement for tight dimensional tolerances while maintaining rotational stability. The fluid flow itself provides the necessary precision and consistency.
4Speed
If the nozzle body is designed to oppose the rotating drive flow to create braking torque, then rotation is controlled, but mechanical friction and wear increase
Solution Approach 1:
The patent eliminates mechanical friction and wear by replacing the braking torque mechanism with fluid-driven control. The rotational speed is controlled by adjusting fluid flow parameters and nozzle geometry rather than through mechanical friction. This removes the harmful effects of friction while maintaining speed control capability.
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
The device achieves a stable, friction-reduced rotational movement and adjustable speed, suitable for diverse fluid properties, minimizing mechanical abrasion and ensuring hygienic operation, even with critical media like steam and viscous oils, while maintaining defined jet characteristics.
Implementation Method 1
The fluid flows through these openings in a jet-like manner into the at least one space between the rotor section and the inflow section
Implementation Method 2
the fluid to be sprayed sets the rotor of the nozzle device into rotation
Implementation Method 3
the fluid to be sprayed sets the rotor of the nozzle device into rotation, more precisely, the position of the actual nozzles on the rotor
Data Source
Figure 1a~1b
Figure 2
Figure 3
AI summary
A nozzle device (1) for the spatial application of fluids comprises an inlet section (3) through which a fluid to be sprayed enters the nozzle device, a rotor section (2) which is rotatably arranged relative to and encloses the inlet section (2), and a bearing element (4) adjacent to the inlet section (3) and rotor section (2) which serves for the rotatable mounting of the rotor section (2). The fluid flows through the eccentrically arranged openings (24) and (25) into the space between the rotor section (2) and the inlet section (3) and generates at least two flows with opposite directions (28) and (30). The direction (29) and speed of rotation of the rotor section are determined by the difference between these flows (28) and (30). The fluid is spatially applied through the nozzle openings (15) and (16) with an application-specific defined spray pattern.