High-Pressure Cleaner Compact Layout
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Solution Overview
Problem
Conventional high-pressure cleaning devices require significant space due to their upright or horizontally installed heat exchangers and separate drives for the pump unit, fan wheel, and fuel pump, leading to a large footprint and stability issues.
Innovation Solution
A compact design is achieved by aligning the drive axis horizontally and arranging the motor, pump assembly, fan wheel, and fuel pump along this axis, eliminating the need for separate drives and positioning the structural unit below the heat exchanger, with a vertically oriented heat exchanger for stability and a chassis that supports the structural unit and heat exchanger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the heat exchanger is installed upright with a vertically oriented axis, then the device achieves stable operation, but the device requires considerable floor space
Solution Approach 1:
The patent transitions from a vertical heat exchanger orientation to a horizontal orientation, changing the spatial dimension in which the heat exchanger is positioned. This allows the device to maintain stability through a low center of gravity while reducing the footprint on the floor by utilizing vertical space more efficiently.
Solution Approach 2:
The patent positions the motor-pump unit within or adjacent to the heat exchanger structure, nesting components together to minimize overall space occupation. The structural unit is integrated into the heat exchanger assembly, eliminating the need for separate mounting spaces.
2Ease of operation
If separate drives are provided for the pump unit, fan wheel, and fuel pump, then each component can be independently controlled, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines the drive functions for the pump unit, fan wheel, and fuel pump into a single motor unit. This consolidation reduces the number of separate drives while maintaining operational control through a unified power source, thereby reducing device complexity and space requirements.
Solution Approach 2:
The single motor unit is designed to perform multiple functions by driving different components through a common drive shaft system. This multi-functional approach allows one motor to control multiple operations, reducing overall system complexity while preserving operational flexibility.
3Ease of manufacture
If the structural unit is arranged above the heat exchanger, then assembly is simplified, but the center of gravity rises reducing stability
Solution Approach 1:
The patent inverts the conventional arrangement by positioning the structural unit (motor-pump assembly) below or adjacent to the heat exchanger rather than above it. This inversion lowers the center of gravity to enhance stability while maintaining assembly simplicity through integrated mounting structures.
4Ease of operation
If the drive axis is oriented vertically, then the motor can be positioned upright for easy access, but the device footprint increases
Solution Approach 1:
The patent reorients the drive axis from vertical to horizontal, changing the spatial arrangement from a vertical stacking configuration to a horizontal layout. This allows the motor to be positioned in a compact footprint while maintaining accessibility through the horizontal orientation and integrated mounting 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
This configuration reduces the device's footprint, enhances stability by lowering the center of gravity, and simplifies assembly and maintenance, while eliminating the need for additional space for separate drives, resulting in a more compact and stable high-pressure cleaning device.
Implementation Method 1
a heatable heat exchanger for heating a liquid that can be emitted by the high-pressure cleaning device
Implementation Method 2
a fan wheel for generating a flow of combustion air
Implementation Method 3
a pump unit for increasing the liquid pressure
Implementation Method 4
a fuel pump for conveying a fuel for the heat exchanger
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a high-pressure cleaning device (10), comprising a heatable heat exchanger (96) for heating a liquid that can be discharged by the high-pressure cleaning device (10), a motor (42) having a drive shaft (46) that defines a drive axis (44), a pumping unit (48) for increasing the liquid pressure, a fan impeller (52) for generating a combustion air flow, and a fuel pump (54) for conveying a fuel for the heat exchanger (96). The pump unit (48), the fan impeller (52), and the fuel pump (54) are arranged along the drive axis (44) and can be driven by means of the drive shaft (46) and form an assembly (40) together with the motor (42). In order to further develop such a high-pressure cleaning device such that the high-pressure cleaning device has a more compact construction and lower space requirements, the assembly (40) is arranged below the heat exchanger (96) in a height direction of the high-pressure cleaning device (10).