Notched Base Ring for Pressure Washer Heat Exchanger Air Flow
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Solution Overview
Problem
Pressure washer heat exchangers operate inefficiently, leading to increased fuel consumption and emissions, as they struggle to maintain desired temperatures for cleaning applications, affecting profitability and environmental impact.
Innovation Solution
A notched base ring and combustion chamber gasket design enhance air flow through the heat exchanger, improving fuel efficiency and reducing emissions by increasing combustion chamber pressure and air mixing, while a blower and heat exchanger assembly optimize heat transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solid base ring is used to provide structural support, then structural strength is improved, but air flow through the heat exchanger is restricted
Solution Approach 1:
The base ring is segmented by introducing notches that divide the solid structure into sections. These notches create pathways for air flow while the remaining portions of the base ring maintain structural strength. The segmentation allows simultaneous achievement of both air flow productivity and structural strength.
2Loss of energy
If heat exchanger efficiency is low, then fuel consumption increases, but improving heat transfer efficiency requires better air flow design
Solution Approach 1:
The base ring design applies local quality by creating notches at specific locations where air flow enhancement is most beneficial. The notches are strategically positioned to optimize air flow through the heat exchanger coils, improving heat transfer efficiency locally where needed while maintaining overall structural integrity.
Solution Approach 2:
The design changes the geometric parameters of the base ring by introducing notches with specific dimensions and positions. These parameter changes optimize the balance between structural strength and air flow characteristics, thereby improving heat transfer efficiency and reducing fuel consumption.
3Productivity
If the base ring is made with notches to improve air flow, then heat transfer efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The segmentation approach through notching is implemented in a way that maintains manufacturing simplicity. The notches are designed as straightforward geometric features that can be easily fabricated using standard manufacturing processes, avoiding excessive complexity while achieving the desired heat transfer efficiency improvement.
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 results in a 4% increase in heat transfer efficiency, reducing fuel consumption and emissions, thereby enhancing profitability and environmental sustainability.
Implementation Method 1
A notched base ring and combustion chamber gasket design enhance air flow through the heat exchanger
Implementation Method 2
the same fuel is often used as part of an ignition system that creates a flame that heats air that is blown through a heat exchanger, which in turn, heats the water and/or other cleaning fluids
Implementation Method 3
an ignition system that creates a flame that heats air
Data Source
AI summary
The notched base ring comprises a base ring sheet body including a top portion, a bottom portion, a first end connecting the top portion to the bottom portion, and a second end connecting the bottom portion to the top portion. The top portion includes a plurality of attachment lugs and defines a plurality of notches, each notch being at least partially defined by two lugs disposed on opposite sides of the notch, the top portion also including an angled top edge that is disposed at each of the attachment lugs, and the bottom portion includes a bottom support edge.