Rear Electric Loader With Cable Actuation for Leak Reduction
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Solution Overview
Problem
Existing refuse vehicles face challenges with hydraulic systems that require frequent maintenance due to leaks and high-pressure components, leading to inefficiencies and increased upkeep.
Innovation Solution
The integration of electrically-actuated rear loader systems in refuse vehicles, which eliminate the need for hydraulic tanks and lines, utilizing electrically-powered actuators for loading and packing waste, reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hydraulic systems are used in refuse vehicles, then high power and force are achieved, but maintenance frequency increases due to leaks and high-pressure components
Solution Approach 1:
The patent replaces the traditional hydraulic system with an electrically-actuated system. Instead of using hydraulic fluid, pumps, and high-pressure lines, the invention employs electric motors and direct mechanical actuators to drive the rear loader and packing mechanisms. This substitution eliminates the complexity and maintenance issues associated with hydraulic systems while maintaining the required power and force output through direct electric-mechanical actuation.
2Reliability
If hydraulic tanks and lines are used, then sufficient power is provided for loading and packing, but the system requires frequent maintenance due to leaks
Solution Approach 1:
The invention extracts and removes the hydraulic system components (tanks, lines, fluid) from the refuse vehicle's power system. By eliminating these components entirely and replacing them with an electrically-actuated system, the patent removes the source of leaks and maintenance problems while retaining the functional capability to power the rear loader and packing mechanisms.
3Ease of operation
If electrically-actuated systems are used, then maintenance requirements are reduced, but power and force delivery must be maintained for loading and packing operations
Solution Approach 1:
The patent substitutes the hydraulic power transmission system with an electric motor system that delivers power directly to the actuators. The electric motors are sized and configured to provide sufficient torque and power for the demanding loading and packing operations, eliminating the need for hydraulic fluid pressure while maintaining or improving power delivery efficiency through direct electric-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
This approach reduces maintenance requirements and enhances operational efficiency by using electrically-actuated systems that are less prone to leaks and require less upkeep compared to traditional hydraulic systems.
Implementation Method 1
The ejector mechanism includes an ejector and a cable actuator configured to selectively actuate the ejector between a refuse receiving position and an ejecting position
Data Source
AI summary
A refuse vehicle includes a chassis, a body assembly, and an ejector mechanism. The body assembly is coupled to the chassis and defines a refuse compartment configured to store refuse material. The ejector mechanism includes an ejector and a cable actuator configured to selectively actuate the ejector between a refuse receiving position and an ejecting position.