Pre-assembled Hydraulic Wet Kit Manifold for Trailer Systems
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Solution Overview
Problem
The existing hydraulic systems for trucks require time-consuming and costly custom assembly of combination wet kits, which are prone to leaks and risk catastrophic failures due to over-pressurization of telescopic cylinders when used with trailers requiring different pressure ratings.
Innovation Solution
A pre-assembled wet kit with dedicated rigid manifolds and a mounting bracket that simplifies the assembly process, providing separate pressure outlets for different trailer types and incorporating a pressure relief valve to manage pressure safely, reducing the number of connections and assembly time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If custom piece-by-piece assembly of combination wet kits is performed, then the system can be adapted to different trailer types, but the assembly time and cost increase significantly
Solution Approach 1:
The manifold assembly is pre-configured with multiple pressure outlets and relief valves before installation on the tractor. This preliminary assembly allows the system to be adapted to different trailer types (end dump, walking floor, side dump, low boy) without requiring time-consuming custom assembly in the field, as the pre-assembled manifold already contains all necessary connections and pressure control components.
Solution Approach 2:
The manifold assembly is designed as a universal component that can serve multiple trailer types through its multiple pressure outlets (first pressure outlet port for end dump, second pressure outlet port for walking floor/side dump, third pressure outlet port for low boy). This multi-functional design eliminates the need for separate wet kits for different trailer types while maintaining adaptability.
2Adaptability or versatility
If multiple fittings and connections are used in custom assembly, then the system can be configured for different trailers, but the number of potential leak points increases
Solution Approach 1:
Multiple individual fittings and connections are merged into a single integrated manifold assembly. The manifold combines multiple pressure outlets, relief valves, and internal passages into one pre-assembled unit that is installed as a single component. This merging eliminates numerous potential leak points that would exist in a custom piece-by-piece assembly while maintaining the ability to configure the system for different trailer types.
3Stress or pressure
If hydraulic pressure is increased for walking floor trailers, then the hydraulic system can power high-pressure trailers, but the telescopic cylinders on end dump trailers may be over-pressurized
Solution Approach 1:
The manifold assembly provides different pressure qualities at different outlets based on the connected trailer type. The first pressure outlet port is equipped with a work port relief valve to limit pressure for end dump trailers with telescopic cylinders rated at 2100 PSI. The second pressure outlet port provides higher pressure (2800 PSI) for walking floor trailers that require higher hydraulic pressure. This local differentiation of pressure quality allows the system to safely power different trailer types simultaneously.
Solution Approach 2:
The manifold assembly acts as an intermediary between the single high-pressure hydraulic pump and the different trailer types. It receives high-pressure hydraulic fluid from the pump and distributes it at appropriate pressure levels to different trailers through its multiple outlets and integrated relief valves, protecting telescopic cylinders from over-pressurization while enabling high-pressure operation for trailers that require it.
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 solution allows for safer and faster installation of hydraulic systems, minimizing the risk of over-pressurization and reducing assembly time and costs by using pre-assembled components, ensuring reliable operation across various trailer types.
Implementation Method 1
a work port relief mounted on another port of the directional valve to limit the working pressure for end dump trailer use
Data Source
AI summary
A combination wet kit includes a single mounting bracket supporting an end dump/return manifold and a walking floor/side dump/low boy manifold, as well as a support bracket for the hydraulic fluid filter. A three-way valve is positioned between the end dump/return manifold and a walking floor/side dump/low boy manifold. The manifold unit attached to the tractor without requiring holes in the tractor frame. The manifolds and the preassembled nature of the manifold assembly greatly simplify and reduce costs for installation of the combination wet kit.