Orbital Cleaning Device Rotor Drive Torque Control
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Solution Overview
Problem
Existing orbital cleaning devices face design restrictions and flow disorders due to the arrangement of the rotor in the fluid flow path, which impairs the drive of the nozzle head and leads to discontinuity in the cleaning process.
Innovation Solution
A cleaning device with a passage that directs part of the flowing fluid to the rotor, allowing for a reliable drive torque and preventing flow between the inlet and output, while using a rolling body mechanism to apply drive torque to the rotor, independent of flow speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the rotor is arranged in the flow path to be driven by the flowing fluid, then the cleaning device can be driven automatically, but this causes turbulent flows or flow disturbances that impair the drive of the nozzle head and lead to discontinuity in control
Solution Approach 1:
The fluid flow is segmented into two separate paths: one path drives the rotor through a drive wheel that extracts energy from the fluid, while the other path maintains laminar flow through the main flow channel to the nozzle head. This segmentation allows automatic drive functionality while preserving control continuity by preventing turbulence in the main flow path.
2Adaptability or versatility
If the rotor is arranged in the flow path to be driven by the flowing fluid, then the cleaning device can operate without external power, but this limits the design variety and causes flow disturbances
Solution Approach 1:
A drive wheel acts as an intermediary component between the fluid flow and the rotor. The drive wheel extracts energy from the fluid to drive the rotor, while being positioned and designed to minimize disruption to the main flow path. This intermediary approach enables automatic drive functionality with greater design flexibility compared to direct rotor placement in the flow path.
3Device complexity
If the rotor is driven directly by the flow velocity, then the device structure is simple, but the drive torque is not stable and depends on flow velocity variations
Solution Approach 1:
The direct fluid-mechanical drive system is replaced with a hybrid system where the drive wheel converts fluid kinetic energy into rotational motion, which then drives the rotor through a mechanical transmission system. This substitution provides more stable drive torque by decoupling the rotor drive from direct flow velocity variations, while maintaining relatively simple device structure.
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 solution enables a pressure-controlled drive torque, enhancing the design variability and controllability of the cleaning device, ensuring consistent and efficient cleaning without flow speed-dependent discontinuities.
Implementation Method 1
the part of the flowing fluid is guided to the rotor in such a way that the rolling element is moved along the rolling surface by the fluid
Implementation Method 2
the rolling element is moved along the rolling surface by the fluid. Thus, by driving a rolling element along a rolling surface arranged coaxially to the rotor, a drive torque is applied to the rotor
Implementation Method 3
A particular advantage of the invention is that a passage configured to conduct a portion of the flowing fluid to the rotor enables reliable drive of the rotor while simultaneously preventing impairment or the creation of turbulence in the flowing fluid between the fluid inlet and the fluid outlet. Furthermore, such a passage advantageously enables the generation of a pressure-controlled drive torque
Data Source
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AI summary
The invention relates to a cleaning device (100) for cleaning a container, in particular an orbital cleaner, comprising: a housing (110) with a fluid inlet (112) for admitting a fluid, in particular cleaning agent, a rotor (120), which can be driven in rotation, relative to the housing (110), about a first rotation axis (122), a nozzle head (130) with a fluid outlet (132) for dispensing the fluid, in particular cleaning agent, wherein the nozzle head (130) is mounted on the rotor (120) rotatably about a second rotation axis (134), a flow channel (140) for fluidically connecting the fluid inlet (112) and the fluid outlet (132), a passage (142), which carries fluid and is designed to conduct part of the flowing fluid to the rotor (120) in order to apply a drive torque and to drive the rotor (120) in rotation, and a drive unit (150), which is coupled on the drive side to the rotor (120) and on the output side to the nozzle head (130) and is designed to transmit the drive torque of the rotor (120) to the nozzle head (130). The invention also relates to a method for driving a cleaning device.