Liquid Diffuser Protection for Debris-Resistant Deflector Rotation
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Solution Overview
Problem
Existing diffuser devices in irrigation systems suffer from poor reliability due to the entry of dirt and debris into moving parts, leading to blocking, reduced lifespan, and increased maintenance costs.
Innovation Solution
A liquid diffuser device with a protection member that encloses the moving parts to prevent the entry of dirty liquids and debris, ensuring a stable orbital motion of the deflector assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the frame is open to allow water flow, then the device structure is simple and easy to manufacture, but dirt and debris can enter the rolling surface and spherical support area, preventing free rotation and reducing reliability
Solution Approach 1:
The device is divided into separate functional zones: an open upper frame for water distribution and a protected lower containment body for the spherical support mechanism. This segmentation allows the moving parts to be isolated from debris while maintaining structural simplicity in the water distribution section.
Solution Approach 2:
A protection member acts as an intermediary barrier between the dirty water environment and the spherical support area. This mediator element prevents direct contact between debris and the rolling surface while allowing the orbital motion to continue uninterrupted.
2Device complexity
If no protection is provided for the bearing area, then the device complexity is reduced and manufacturing is easier, but particles and debris enter the moving parts, causing blocking and damage
Solution Approach 1:
A protection member in the form of a shell or cover encloses the spherical support and containment body. This flexible protective element effectively blocks debris entry while adding minimal structural complexity to the overall device.
Solution Approach 2:
The spherical support is nested within the containment body, which is in turn protected by the outer protection member. This nested arrangement provides multiple layers of protection without significantly increasing device complexity.
3Device complexity
If the deflector assembly is exposed to dirty water, then the device operates with fewer components and lower complexity, but wear on moving parts increases and lifespan is reduced
Solution Approach 1:
The spherical support and containment body are extracted from the exposed environment and placed within a protected space. This separation removes the vulnerable moving parts from direct contact with abrasive debris, extending device lifespan without adding numerous protective components.
4Adaptability or versatility
If less filtered water is used to reduce filtration requirements, then the device can use cheaper water sources, but debris builds up and components need frequent repair and replacement
Solution Approach 1:
The protection member is installed in advance to prevent debris accumulation before it can cause damage. This preliminary protective action allows the device to operate with less filtered water while avoiding the need for frequent repairs and maintenance.
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 device maintains optimal operation and extends the lifespan of the diffuser by protecting moving parts from impurities, reducing maintenance needs and operational costs.
Implementation Method 1
a spherical support (28) arranged in a seat (29) formed in the bottom wall (27) of the containment body (24), the stem (16) having a lower end shaped to rest on the spherical member (28) with minimal friction
Implementation Method 2
a deflector plate (13) facing the nozzle (6) and adapted to intercept the liquid jet generated by the nozzle (6) and deflect it partly radially
Data Source
AI summary
A liquid diffuser device includes a frame provided with a nozzle for generating a liquid jet; a deflector assembly having a deflector plate with an upper face facing the nozzle and a lower face with a shank extending therefrom; and a containment member associated with the frame and having a peripheral annular collar, a stem, and a rotatable support on a bottom wall of a cavity. The shank of the deflector assembly rests against the rotatable support, the deflector plate being spaced from the annular collar to enable the free rotation of the deflector assembly. A protection member joined to the deflector plate is configured to occlude the space between the lower face of the plate and the annular collar of the containment member and to enclose the containment member, the rotatable support and all moving parts of the deflector assembly, preventing the entry of liquids, solids and debris.