Series Valve Fluid Circuit with Parallel Supplemental Line
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Solution Overview
Problem
Existing hydraulic circuits face challenges in efficiently powering multiple machine functions with different flow parameters using a single pump or multifunction valve stack, as they require distinct system parameters for various applications.
Innovation Solution
A fluid circuit design that includes a primary valve, an auxiliary valve connected in series, and a supplemental line in parallel, allowing for multiple flow paths and accommodating different flow rates between primary and auxiliary circuits, enabling efficient operation of primary and auxiliary functions with a single pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single pump or multifunction valve stack is used to power multiple machine functions, then device complexity is reduced, but it becomes difficult to satisfy different flow parameters for various functions
Solution Approach 1:
The valve stack is segmented into multiple independent valve assemblies, each capable of handling specific flow parameters. This allows the system to maintain low overall complexity while providing adaptability for different flow requirements through modular valve configurations.
Solution Approach 2:
The valve stack is designed as a multifunctional assembly where multiple valves can operate simultaneously to serve different machine functions with varying flow parameters. The universal design allows a single pump to power multiple functions by distributing flow through different valve paths.
2Productivity
If distinct system parameters are used for various machine functions, then each function can operate optimally, but the system requires multiple pumps or complex valve stacks
Solution Approach 1:
Multiple valve functions are merged into a single integrated valve stack assembly, allowing distinct system parameters for different functions while maintaining a unified structural platform. This combining approach enables optimal performance for each function without requiring separate pumps or standalone valve assemblies.
3Adaptability or versatility
If an auxiliary valve is connected in series with the primary valve, then auxiliary functions can be powered from the primary circuit, but the auxiliary circuit receives limited flow compared to the primary circuit
Solution Approach 1:
A supplemental line acts as an intermediary flow path that branches off from the primary circuit before the auxiliary valve. This mediator structure allows the auxiliary circuit to receive additional fluid flow independently, supplementing the flow that passes through the series-connected auxiliary valve.
4Quantity of substance
If a supplemental line is added in parallel with the auxiliary valve, then additional flow can be provided to the auxiliary circuit, but the system complexity increases
Solution Approach 1:
The fluid circuit is segmented into distinct parallel paths: one path through the auxiliary valve and another through the supplemental line. This segmentation allows independent flow control in each path while maintaining a relatively simple overall structure that can be integrated into existing valve stacks.
Data Source
AI summary
A circuit or system having application for operating an implement or attachment for a power machine is disclosed. The circuit includes a first or primary valve, a second or auxiliary valve connected in series with the first valve and a supplemental line connected in parallel with the second valve to provide fluid to a supplemental system in parallel with the second valve.