Refuse Vehicle Valve Assembly Layout to Isolate Exhaust Leaks
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Solution Overview
Problem
Conventional refuse vehicles experience hydraulic fluid leaks onto the exhaust system, causing the fluid to heat up and react due to the proximity of hydraulic valves and lines to the exhaust components.
Innovation Solution
The valve assembly is positioned rearwardly within the refuse compartment, angled such that it is neither parallel with the horizontal nor vertical plane, allowing for a cover to be placed between the valve assembly and the exhaust system, preventing hydraulic fluid from spraying onto the exhaust system and facilitating easier routing of tubes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hydraulic valves and lines are placed near the front end of the body near the exhaust system, then the routing of hydraulic lines is simplified, but hydraulic fluid can leak onto the exhaust system causing heat reaction
Solution Approach 1:
The valve assembly is extracted from its conventional position near the front end of the body and relocated to the rearward portion of the refuse compartment. This extraction removes the harmful interaction between hydraulic components and the exhaust system, preventing fluid leakage onto hot exhaust surfaces while maintaining hydraulic system functionality.
Solution Approach 2:
The bracket is configured at an angle that is neither parallel with the horizontal plane nor parallel with the vertical plane, creating a three-dimensional orientation that positions the valve assembly within the rearward portion of the refuse compartment. This angular arrangement optimizes spatial utilization and achieves proper positioning away from the exhaust system.
2Object-affected harmful factors
If the valve assembly is positioned rearwardly within the refuse compartment at an angled orientation, then hydraulic fluid leakage onto the exhaust system is prevented, but the routing of hydraulic lines becomes more complex
Solution Approach 1:
The angled bracket serves as an intermediary structure that facilitates the connection between the rearwardly positioned valve assembly and the hydraulic system. This intermediate component simplifies the overall routing complexity by providing a structured mounting solution that integrates the valve assembly into the vehicle body framework.
3Reliability
If the bracket extends rearward from the front wall into the compartment at an angle, then the valve assembly can be positioned within the rearward portion of the refuse compartment, but the structural complexity of the bracket increases
Solution Approach 1:
The bracket is designed with specific local characteristics - an angular configuration that is neither parallel with the horizontal plane nor parallel with the vertical plane. This localized angular design provides the necessary positioning functionality for the valve assembly while minimizing overall structural complexity compared to more elaborate mounting solutions.
Data Source
AI summary
A vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, a bracket, and a valve assembly. The body defines a compartment. The body includes a bottom wall defining a horizontal plane and a front wall defining a vertical plane. The bracket has an arm that is coupled to and extends rearward from the front wall into the compartment at an angle such that the arm is neither parallel with the horizontal plane nor parallel with the vertical plane. The valve assembly is coupled to the bracket such that at least a portion of the valve assembly is disposed within the compartment.