Surface Cleaner Pump Cooling via Housing Airflow Path
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Solution Overview
Problem
Existing surface cleaners lack an effective method to cool the pump, which can lead to reduced performance and efficiency due to heat buildup during operation.
Innovation Solution
The surface cleaner incorporates a cooling air inlet and outlet system within the pump housing, utilizing airflow generated by the suction source to create a cooling airflow path that cools the pump, thereby maintaining its operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pump operates continuously to pump cleaning fluid, then the cleaning function is maintained, but heat buildup occurs leading to reduced performance and efficiency
Solution Approach 1:
The patent converts the harmful heat generated by the pump into a beneficial cooling effect by directing the warm exhaust air from the suction source through the pump housing to cool incoming air and prevent overheating, thus transforming a harmful thermal byproduct into a useful cooling mechanism
Solution Approach 2:
The pump housing serves multiple functions: it encloses the pump, provides structural support, and acts as a heat exchanger by incorporating cooling air inlet and outlet passages that utilize exhaust air flow to cool the pump, thereby integrating thermal management into the existing structural component
2Device complexity
If no cooling system is added to the pump, then the device complexity remains low, but the pump overheats and performance deteriorates
Solution Approach 1:
The patent merges the cooling function with the existing pump housing structure by integrating cooling air inlet and outlet passages directly into the housing, eliminating the need for separate cooling components and reducing overall system complexity while maintaining effective thermal management
Solution Approach 2:
The system uses its own exhaust air flow to cool the pump, making the cooling mechanism self-powered and eliminating the need for external cooling systems or additional energy input, thus maintaining low device complexity while ensuring reliable pump operation
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 solution effectively cools the pump, enhancing its performance and extending its operational lifespan by managing heat effectively, ensuring consistent cleaning efficiency.
Implementation Method 1
The pump housing includes a cooling air inlet and a cooling air outlet in fluid communication with the suction source
Data Source
AI summary
A surface cleaner (10) includes a housing (12) having a first tank guide projection (82) that is received in a first recess of a supply tank (14) when the supply tank is in a supply tank operating position and the first tank guide projection includes a cooling air inlet (85) in fluid communication with a cooling air inlet of a pump housing (72). The housing further includes a second tank guide projection (84) that is received in a second recess of the supply tank when the supply tank is in the supply tank operating position and the second tank guide projection forms a cooling air flow path between the cooling air inlet of the first tank guide and the cooling air inlet of the pump housing.