Hydraulic Valve Assembly Bypass Line for Auxiliary Flow Supply
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Solution Overview
Problem
Current hydraulic systems for work vehicles often struggle to meet commanded hydraulic demands when multiple components, such as lift, tilt, and auxiliary attachments, are actuated simultaneously, leading to inadequate fluid supply to auxiliary attachments.
Innovation Solution
The hydraulic system incorporates a valve assembly with a bypass line that allows pressurized fluid to bypass the second valve and be diverted directly to the third valve, ensuring adequate fluid supply to auxiliary attachments even during simultaneous actuation of lift and tilt cylinders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional valve assembly is used to regulate hydraulic fluid supply to multiple components, then the system structure remains simple, but the system cannot satisfy commanded hydraulic demand when multiple components are actuated simultaneously
Solution Approach 1:
The valve assembly is segmented into multiple independent valves (first valve for lift cylinder, second valve for tilt cylinder, third valve for auxiliary attachment) that can operate independently. Each valve has its own control circuit, allowing simultaneous actuation of multiple hydraulic components without interference, thereby satisfying commanded hydraulic demand while maintaining a structured organization.
Solution Approach 2:
The patent introduces a bypass line that creates an alternative flow path dimension. When the second valve is actuated, pressurized fluid can bypass it through the bypass line to reach the third valve, enabling auxiliary attachment operation in a different flow path dimension when needed.
2Quantity of substance
If pressurized fluid flows sequentially through multiple valves in series, then the valve assembly structure remains simple, but inadequate fluid supply occurs to auxiliary attachments during simultaneous actuation
Solution Approach 1:
The hydraulic control system is divided into separate valve circuits, with the third valve for auxiliary attachment having an independent bypass path. This segmentation ensures that when the second valve is actuated, fluid can still reach the third valve through the bypass line, guaranteeing adequate fluid supply to auxiliary attachments regardless of tilt cylinder operation.
Solution Approach 2:
The bypass line acts as an intermediary element that mediates fluid flow between the second valve and third valve. It provides an alternative route that ensures fluid supply to the auxiliary attachment even when the main flow path through the second valve is blocked or restricted during simultaneous actuation.
3Ease of operation
If the second valve is actuated to control tilt cylinder operation, then tilt function is achieved, but auxiliary attachment cannot receive adequate pressurized fluid
Solution Approach 1:
The control system is segmented into independent valve circuits, allowing the third valve for auxiliary attachment to receive fluid through a dedicated bypass line when the second valve is actuated. This ensures that auxiliary attachment operation remains easy and functional even during simultaneous tilt cylinder operation, as the bypass path guarantees adequate power delivery.
Solution Approach 2:
The bypass line is pre-configured in the valve assembly to provide an alternative fluid path. When the second valve is actuated, the bypass line is already in place to immediately redirect pressurized fluid to the third valve, ensuring that auxiliary attachment power delivery is maintained without delay or operational difficulty.
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 hydraulic system's ability to meet the commanded demands of multiple components, ensuring proper operation of auxiliary attachments during simultaneous operations.
Implementation Method 1
a bypass line providing a path for the pressurized hydraulic fluid flowing through the second supply line to bypass the second valve and be diverted to the third valve
Data Source
AI summary
In one aspect, a hydraulic system for a work vehicle includes a valve assembly that incorporates a bypass line for allowing pressurized fluid to bypass a valve of the valve assembly and be delivered to a separate downstream valve.