High-Pressure Rotor Nozzle Cylindrical Throttle Gap
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Solution Overview
Problem
Existing high-pressure rotor nozzles suffer from significant power losses and reduced cleaning efficiency due to increased leakage volume and unstable recoil force compensation, leading to complex and costly manufacturing processes.
Innovation Solution
A high-pressure rotor nozzle design featuring a throttle gap with cylindrical surfaces that maintains constant volume flow and pressure balance, combined with a self-adjusting braking device and an outer sleeve to prevent gap seal expansion, ensuring stable operation and reduced energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gap seal height increases to compensate for recoil force, then the sealing effect improves, but the leakage volume increases and power losses increase
Solution Approach 1:
The patent changes the geometric parameters of the gap seal from a conical shape (where height increases with recoil force) to a cylindrical shape with constant height. This parameter change ensures that the sealing effect remains effective while the leakage volume stays constant, preventing the 50% power losses observed in conical designs.
2Reliability
If multiple gap seals are provided to compensate for recoil force, then the sealing reliability improves, but the device complexity increases
Solution Approach 1:
The patent merges the functions of multiple gap seals into a single cylindrical gap seal. By combining the sealing function and the recoil force compensation function into one component with optimized geometry, the design achieves the same reliability as multiple seals without the added complexity and manufacturing costs.
3Stability of the object's composition
If the leakage chamber is used to compensate for recoil force, then the stability of operation improves, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts and eliminates the complex leakage chamber structure from the design. By removing this component entirely and relying on the simplified cylindrical gap seal for both sealing and recoil compensation, the design achieves operational stability while dramatically reducing manufacturing complexity and cost.
4Quantity of substance
If transverse bores with cross-sectional constriction are used for throttling, then the leakage control improves, but the control stability deteriorates due to vibration
Solution Approach 1:
Instead of using transverse bores with cross-sectional constriction that create non-linear throttle characteristics and vibration, the patent inverts the approach by using a simple axial cylindrical gap seal. This inverted design provides linear, stable throttle control without the vibration problems associated with constricted cross-sections.
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 design achieves improved cleaning efficiency by maintaining constant volume flow and pressure balance, reducing energy losses, and simplifying manufacturing, resulting in cost savings and enhanced operational stability.
Implementation Method 1
the nozzle holder can be driven by the recoil of the pressurized water emerging from the nozzle of the nozzle holder
Implementation Method 2
a leakage chamber which forms an axial bearing for receiving recoil forces occurring during operation of the rotor nozzle
Implementation Method 3
which together radially delimit the throttle gap, have cylindrical lateral surfaces facing each other
Data Source
AI summary
The invention relates to a high-pressure rotor nozzle comprising a main body having a channel for supplying a highly pressurised fluid, a nozzle holder which can be rotationally driven for this purpose via a hydraulically generated torque, and which has at least one nozzle connected to the channel in a manner open for fluid and acting in accordance with an axial recoil, wherein a leakage chamber forming a hydraulic axial bearing during operation is provided between the main body and the nozzle holder that can be axially adjusted in relation to same in a recoil-dependent manner, with said leakage chamber being connected to a first gap seal between the main body and the nozzle holder guiding a leakage fluid, wherein the high-pressure rotor nozzle is designed in such a way that the leakage chamber transitions into at least one throttle gap circumferentially surrounding the nozzle holder in an axial sub-region and varying in the axial extension thereof according to the movement path of the nozzle holder, wherein the throttle gap remains the same height over the axial length thereof.