Self-Contained Cart-Tipping System for Refuse Trucks
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Solution Overview
Problem
Existing refuse collection vehicle cart-tipping mechanisms require a larger hydraulic system and elevated engine idle, making them inefficient and costly, especially when added to front, side, or rear-loading vehicles.
Innovation Solution
A self-contained cart-tipping system with independent hydraulic and electrical systems that only needs an electrical connection, including a hydraulic fluid reservoir, pumps, motor assembly, control manifold block, and electrical components for operation, allowing for easy installation on various refuse collection truck types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cart-tipping mechanism is added to a refuse collection vehicle, then the refuse collection capability is improved, but the hydraulic system complexity and engine idle requirements increase
Solution Approach 1:
The cart-tipping mechanism is designed as a separate, self-contained module with its own independent hydraulic system. This segmentation allows the cart-tipping function to be added without integrating into the vehicle's main hydraulic system, thereby avoiding increased system complexity while maintaining improved refuse collection capability
Solution Approach 2:
The cart-tipping mechanism includes its own hydraulic pump, reservoir, and control systems, making it self-sufficient. The system draws power directly from the vehicle's electrical system rather than requiring hydraulic system integration, thus improving productivity without worsening device complexity
2Productivity
If the hydraulic system is upgraded to support cart-tipping mechanisms, then the refuse collection efficiency is improved, but the fuel consumption and noise increase
Solution Approach 1:
The cart-tipping mechanism operates with its own independent hydraulic system that draws electrical power from the vehicle's battery/electrical system rather than requiring the engine to maintain elevated idle speeds. This allows the engine to operate at normal idle levels, maintaining refuse collection efficiency while reducing fuel consumption and noise
Solution Approach 2:
The system replaces the traditional mechanical hydraulic connection to the engine with an electrical power connection. The hydraulic pump is electrically driven, substituting the need for mechanical coupling to the engine, thereby reducing fuel consumption and noise while maintaining operational efficiency
3Force
If a larger hydraulic system is installed to accommodate cart-tipping mechanisms, then the lifting capacity is improved, but the device complexity and cost increase
Solution Approach 1:
The cart-tipping mechanism uses a separate, self-contained hydraulic system with its own pump and reservoir, segmented from the vehicle's main hydraulic system. This allows the lifting capacity to be increased for cart-tipping operations without requiring the entire vehicle hydraulic system to be upgraded, thereby improving force capability without proportionally increasing device complexity
Solution Approach 2:
The independent hydraulic system is designed to serve multiple functions: it can tip carts of various sizes and weights, and the system can be easily adapted to different vehicle types. This multi-functionality allows adequate lifting capacity without requiring an overly complex or oversized hydraulic system
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 self-contained system reduces fuel consumption and noise by allowing normal engine idle during operation, providing efficient and adaptable refuse collection capabilities across different vehicle types without the need for additional hydraulic systems.
Implementation Method 1
a hydraulic pump motor assembly
Implementation Method 2
a hydraulic system including a hydraulic fluid reservoir, hydraulic pumps and motor assembly
Data Source
AI summary
There is disclosed a self-contained cart-tipping system for residential applications that can be installed on a variety of refuse collection truck types, including front loading, side loading and rear loading models. The cart tipper system of the invention includes independent hydraulic and electrical systems and needs only to be served by a source of electric power.