Hydraulic Actuator Suspension Valve Layout for Leak-Resistant Control
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Solution Overview
Problem
Existing fluidically drivable consumer actuating devices are complex and suffer from operational reliability issues due to multiple valves and fluid lines, leading to leakage and adverse effects on driving stability and safety.
Innovation Solution
A simplified actuating device design using a single valve control device and a suspension device with a further valve control device, reducing the number of valves and fluid connections, and implementing a proportional pressure-reducing valve for controlled fluid path establishment, ensuring gradual pressure adjustment and reduced leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple valves and fluid lines are used in the actuating device, then the control functionality is enhanced, but the device complexity increases and operational reliability decreases due to leakage risks
Solution Approach 1:
The patent combines multiple valve functions into a single integrated valve control device. The suspension device integrates the accumulator device, valve control device, and fluid path management into one unified component structure, eliminating the need for separate valves and fluid lines that would increase complexity and leakage risk.
Solution Approach 2:
The valve control device is designed with multi-functionality, serving both as a switching valve and a proportional control valve. This universal component performs multiple control functions (alternating movement control and suspension control) that would traditionally require separate valve assemblies, thereby reducing overall device complexity while maintaining reliability.
2Manufacturing precision
If multiple valves and fluid connections are implemented, then the control precision is improved, but the leakage risk increases adversely affecting driving stability
Solution Approach 1:
By merging multiple fluid connections into a single integrated valve control device with internal fluid pathways, the patent eliminates numerous external connection points where leakage could occur. The integrated design maintains precise control functionality while minimizing leakage risk by reducing the number of seals and connection interfaces.
3Device complexity
If a simplified design with fewer valves is used, then the device complexity is reduced, but the control precision may be compromised
Solution Approach 1:
The valve control device is designed as a universal component that performs both switching and proportional control functions. This multi-functional design maintains the precision required for controlled alternating movement and suspension control while using a single integrated valve structure, thereby achieving simplified design without compromising control precision.
Solution Approach 2:
The patent utilizes a proportional valve control mechanism that allows continuous adjustment of fluid flow parameters. This parameter-based control enables precise regulation of the piston rod movement and suspension effects with a single valve, replacing what would traditionally require multiple discrete valves for step-wise control.
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
Enhances operational reliability, reduces leakage-induced lowering, improves dynamics, and ensures controlled movement of the piston rod, thereby increasing safety and reducing production costs.
Implementation Method 1
an accumulator device (16) for storing suspension fluid under pressure
Implementation Method 2
an accumulator device (16) for storing suspension fluid under pressure
Implementation Method 3
a proportional pressure-reducing valve for controlled fluid path establishment, ensuring gradual pressure adjustment
Implementation Method 4
the valve piston of which can be moved in a corresponding valve housing in a continuously adjustable manner
Data Source
AI summary
The invention relates to an actuation device for at least one fluidically drivable load (10), such as a hydraulic actuator, consisting of at least one valve controller (V1) for controlling an alternating movement of each load (10) and at least one suspension device (14) which is connected between the valve controller (V1) and each load (10), wherein the suspension device (14) has an additional valve controller (V2), the valve piston (20) of which can be moved in a corresponding valve housing in a continuously adjustable manner. The invention is characterized in that a storage device (16) of the suspension device (14) is connected to the respective load (10) via a fluid path by means of the additional valve controller (V2) in a suspension position (V2.IV) of the valve piston (20) of the additional valve controller (V2). The invention additionally relates to a method for actuating the respective load (10) using such an actuation device.