Dual-Scale Cartridge Assembly for Multi-Range Hydraulic Flow Control
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Solution Overview
Problem
Existing hydraulic flow rate control valves require multiple versions for different flow rate ranges, leading to increased manufacturing, storage, and sales complexity, as each standardized valve size is characterized by a corresponding flow rate range, necessitating numerous pre-adjusting assemblies.
Innovation Solution
A cartridge flow rate adjusting assembly with a dual adjusting scale, featuring a cylindrical sleeve with two distinct openings, allows the valve to operate in different flow rate ranges by rotating the sleeve, enabling adjustment between two separate scales, thus eliminating the need for multiple valve versions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple versions of valves are provided for different flow rate ranges, then the valve can be precisely adjusted for specific flow rate requirements, but the manufacturing, storage, and sales complexity increases
Solution Approach 1:
The patent applies universality by designing a single valve body that can perform multiple flow rate range functions through interchangeable cartridges. Each cartridge is configured for a specific flow rate range, but the overall valve system remains universal, eliminating the need for multiple valve versions while maintaining precise adjustment capabilities.
Solution Approach 2:
The patent segments the valve into modular components: a standardized valve body and interchangeable cartridges. This segmentation allows different flow rate range configurations to be achieved by swapping cartridges rather than manufacturing entirely different valve versions, reducing complexity while preserving precision.
2Manufacturing precision
If multiple pre-adjusting assemblies are provided for different flow rate ranges, then each valve can be optimized for its specific range, but the manufacturing and storage needs increase
Solution Approach 1:
The valve body is designed as a universal platform that can accommodate multiple cartridges with different pre-adjusting assemblies. This allows a single valve body to support multiple flow rate ranges, reducing the total number of valve versions that need to be manufactured and stored while maintaining precise pre-adjustment capabilities for each range.
Solution Approach 2:
By segmenting the pre-adjusting assembly into interchangeable cartridges rather than integral parts of different valve versions, the patent enables standardized manufacturing of the valve body that can serve multiple purposes. This reduces manufacturing complexity and storage requirements while preserving precise flow rate adjustment for each specific application.
3Ease of manufacture
If a single valve is designed to operate across multiple flow rate ranges, then manufacturing and storage needs are reduced, but the complexity of the adjusting mechanism increases
Solution Approach 1:
The patent resolves this contradiction by segmenting the adjusting mechanism into standardized cartridges that interface with a simple valve body. The complexity is contained within the interchangeable cartridges rather than the main valve structure, keeping the valve body manufacturing simple while enabling multiple flow rate ranges through cartridge selection.
Solution Approach 2:
The valve body is designed with universal features that can accommodate different cartridge types, maintaining manufacturing simplicity. The multi-functionality is achieved through the cartridge system rather than complex internal mechanisms in the valve body itself, thus easing manufacturing while providing multiple flow rate range capabilities.
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 solution allows a single valve to operate effectively across various flow rate ranges, reducing manufacturing and storage needs, while enabling more versatile and adaptable hydraulic systems with smaller, economical actuators and improved flow rate balancing, enhancing reliability and durability.
Implementation Method 1
means for adjusting the fluid static flow rate configured to change the cross-section of a passage port between a valve inlet and outlet
Implementation Method 2
an elastic element is disposed at a face of the perforated element facing the fluid inlet opening in the valve body so that, an increase of a pressure difference between the valve inlet and outlet is matched by an enlargement of the elastic element in order to reduce the passage area of the opening of the perforated element and to ensure a constant flow rate
Implementation Method 3
an increase of a pressure difference between the valve inlet and outlet is matched by an enlargement of the elastic element
Data Source
AI summary
A cartridge flow rate adjusting assembly for a hydraulic valve, may include a cartridge body, a stem that is slidingly disposed in the cartridge body, and a shutter to be slidingly placed against a passage opening. The cartridge flow rate adjusting assembly may further include a sleeve rotatively disposed inside the valve that may include at least one first opening to enable adjustment of a maximum flow rate of the valve within a first range of values, and according to a first scale at least one second opening made in the wall to enable adjustment of the maximum flow rate of the valve within a second range of values according to a second scale. A hydraulic control valve is also provided that comprises a cartridge flow rate adjusting assembly.