Modular Dual-Wall Hopper Spreader for Simultaneous Liquid and Solid Dispensing
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Solution Overview
Problem
Existing hopper spreader apparatuses are limited in their ability to efficiently spread both dry, free-flowing materials and liquids, often requiring separate units and lacking modular design for easy reconfiguration and repair.
Innovation Solution
A modular dual-wall hopper spreader assembly that combines separate chambers for liquids and solids, allowing for simultaneous or separate dispensing of materials, with a modular design that enables easy reconfiguration and repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single integrated hopper spreader is used to carry both liquids and solids, then the device can perform multiple functions, but the liquid causes turbulence that reduces vehicle stability
Solution Approach 1:
The hopper is divided into separate compartments: an inner hopper for solids and an outer hopper for liquids. This segmentation prevents liquid turbulence from affecting solid material storage while allowing both materials to be carried and dispensed independently, resolving the contradiction between multi-functionality and vehicle stability.
2Device complexity
If a non-modular hopper spreader design is used, then the structure is simpler, but the entire unit must be replaced when parts are damaged
Solution Approach 1:
The hopper spreader is designed as a modular system where the inner hopper, outer hopper, and dispensing mechanisms are separate replaceable components. This allows individual parts to be repaired or replaced without replacing the entire unit, improving ease of repair while maintaining reasonable structural simplicity through standardized modular interfaces.
Solution Approach 2:
The inner hopper is nested within the outer hopper structure, with the solid material hopper positioned inside the liquid material hopper. This nested configuration allows both hoppers to be replaced as integrated modules while maintaining a compact overall structure, balancing structural simplicity with repairability.
3Reliability
If separate units are used for spreading solids and dispensing liquids, then each unit can be optimized for its specific function, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines separate solid spreading and liquid dispensing units into a single integrated hopper spreader system. The inner hopper for solids and outer hopper for liquids are merged into one apparatus with coordinated dispensing mechanisms, allowing functional optimization of both materials while reducing the number of separate units and simplifying the overall system.
Data Source
AI summary
A reconfigurable modular hopper spreader assembly is mountable in the bed of a truck and includes a modular dual-wall hopper with a receptacle for storing solid material to be spread onto the ground and with individual liquid chambers for storing a liquid or different liquids to be sprayed onto the ground. The hopper spreader assembly further includes a fluid conduit for filling or draining the liquid into or out of the liquid chambers, a liquid pump fluidly connected with the liquid chambers for drawing the liquid from the liquid chambers, a selector valve fluidly connected with the fluid pump for directing the liquid drawn from the liquid chambers, and a liquid dispenser fluidly connected with the selector valve for distributing the liquid onto an application area.