Sprayer Filter Flushing via Auxiliary Pump Jet
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Solution Overview
Problem
Existing filtering apparatuses for sprayers face challenges with filter clogging due to the reliance on operator intervention for timely removal and replacement, as simple agitation of the liquid is insufficient to prevent clogging.
Innovation Solution
An auxiliary pumping chamber and hose system is integrated with the sprayer pump to direct a jet of fluid against the filter, providing continuous flushing and reducing the accumulation of sediment and debris, thereby extending the time between filter replacements and minimizing operator assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple agitation of the liquid is provided, then the device complexity is reduced, but the filter clogging resistance is insufficient
Solution Approach 1:
The system is divided into two independent pumping chambers: a main pumping chamber for spraying and an auxiliary pumping chamber for filter flushing. This segmentation allows the filter flushing function to be performed separately without interfering with the main spraying operation, resolving the contradiction between device simplicity and effective filter maintenance.
Solution Approach 2:
A hose acts as an intermediary element, conducting fluid from the auxiliary pumping chamber to the filter. This intermediary mechanism enables the auxiliary pump to flush the filter without requiring direct mechanical contact or complex integration with the main pump system, maintaining device simplicity while improving filter reliability.
2Ease of operation
If the filter is manually removable and replaceable, then the ease of operation is improved, but the reliability decreases due to operator intervention delays
Solution Approach 1:
The auxiliary pumping chamber automatically flushes the filter during normal operation without requiring operator intervention. The system serves itself by using the auxiliary pump to continuously clear debris from the filter, eliminating the need for manual removal and replacement while maintaining ease of operation.
Solution Approach 2:
The filter flushing operation continues continuously during the spraying operation. The auxiliary pump operates throughout the spraying cycle, providing uninterrupted flushing action that prevents clogging accumulation, thereby eliminating the periodic maintenance interruptions required by manual filter replacement.
3Reliability
If the auxiliary pumping chamber is added, then the filter clogging resistance is improved, but the device complexity increases
Solution Approach 1:
The auxiliary pumping chamber serves multiple functions: it flushes the filter, prevents clogging, and can operate independently of the main pump system. This multi-functionality justifies the added complexity by providing comprehensive filter maintenance capabilities through a single auxiliary chamber design.
Solution Approach 2:
The hose serves as an intermediary that connects the auxiliary pumping chamber to the filter, enabling fluid transfer without requiring direct mechanical integration. This intermediary approach minimizes the complexity increase by using a simple, easily integrated connection rather than complex mechanical coupling.
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 effectively retards filter clogging by ensuring continuous flushing with each pump stroke, reducing the need for frequent filter maintenance and operator intervention, thereby enhancing the operational efficiency and reliability of the sprayer.
Implementation Method 1
This hose provides a jet of fluid directed against the filter for flushing the filter
Implementation Method 2
The auxiliary pumping chamber is connected via a hose in a position facing the filter... provides a jet of fluid directed against the filter
Data Source
AI summary
To assist the filtering from a tank into the inlet port of the pressure chamber of a sprayer, an additional pumping structure is attached to the pumping mechanism of the sprayer. A hose extends into the tank of the sprayer and draws fluid from the tank into the additional pumping structure. Fluid is pumped from the additional pumping structure via the hose to provide a jet of fluid upon a filter over the inlet port. The jet of fluid flushes the filter and retards the accumulation of debris thereon, thereby retarding the clogging of the filter.