Hydraulic Suspension Unit Valve Integration
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Solution Overview
Problem
The remote location of the valve block in existing tractor front axle suspension systems results in flexible hoses that flex and stretch under pressure, introducing sponginess and reducing the response and performance of the suspension system.
Innovation Solution
Mounting the control valves directly on the hydraulic jack, allowing for the use of rigid conduits instead of flexible hoses, and integrating the valve block into the hydraulic jack to minimize conduit length and eliminate the need for external connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the valve block is remotely located from the hydraulic jack, then the suspension system has flexible hoses that can accommodate movement, but the hoses flex and stretch under pressure introducing sponginess that reduces response and performance
Solution Approach 1:
The valve block is integrated directly onto the hydraulic jack assembly, merging two previously separate components. This eliminates the need for long flexible hoses while maintaining the adaptability of the suspension system, as the valve block moves with the jack.
Solution Approach 2:
Rigid conduits are introduced as intermediaries to replace the flexible hoses. These conduits provide a stable, non-spongy connection between the valve block and hydraulic jack, eliminating the flexibility issue while maintaining reliable fluid transfer.
2Ease of manufacture
If the valve block is remotely located from the hydraulic jack, then installation is flexible, but long hoses are required that introduce sponginess under pressure
Solution Approach 1:
By integrating the valve block directly onto the hydraulic jack, the patent eliminates the need for long external hoses and connectors, significantly reducing device complexity while maintaining installation flexibility through the unified assembly design.
3Reliability
If the valve body is mounted directly on the hydraulic jack, then conduit length is minimized eliminating sponginess, but the anchoring block structure must accommodate additional mounting space
Solution Approach 1:
The valve block is mounted directly on the anchoring block of the hydraulic jack, merging the mounting function into the existing structure. This minimizes conduit length to eliminate sponginess while avoiding the need for separate mounting structures.
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 configuration enhances the responsiveness and performance of the suspension system by eliminating sponginess and maintaining the original length between the hydraulic jack's anchoring points, while simplifying connections and reducing the need for external components.
Implementation Method 1
a first conduit connecting the first valve to the first working chamber and a second conduit connecting the second valve to the second working chamber
Implementation Method 2
a piston arranged within the cylinder body to define two variable volume working chambers
Data Source
AI summary
A hydraulic suspension unit for the front axle suspension of a tractor, comprises a hydraulic jack having a cylinder body, a piston arranged within the cylinder body to define two variable volume working chambers, a piston rod connected to the piston and sealingly guided in the cylinder body, and anchoring blocks on the ends of the cylinder body and of the piston rod for connecting the hydraulic jack to components of the suspension that are movable relative to one another. The suspension unit further comprising a valve body having valves connected to regulate the flow of hydraulic fluid to and from the working chambers of the jack. In the invention, the valve body is directly mounted on the anchoring block of the cylinder body on its side remote from the anchoring block of the piston rod.