Cruciform Three-Way Valve for Accurate Fluid Mixing Modulation

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Solution Overview

Problem

Existing three-way globe valves in hydraulics are structurally complex, expensive, and lack accuracy in mixing modulation, with suboptimal control of the second fluid's flow rate.

Innovation Solution

A three-way valve with a cruciform valve body and internal control/blocking means that can be switched between configurations to optimize the flow rate or pressure of the first fluid, optionally mixing it with a second fluid, while being constructively simple and easily modulated.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a three-way globe valve is used to regulate fluid flow, then the flow rate can be controlled, but the structural complexity increases and manufacturing cost rises

Engineering Contradiction:
Improveflow rate controlVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The valve is divided into modular components: a body with cruciform configuration, a separable control means, and an activation means. This segmentation allows for simpler manufacturing of individual parts while maintaining the overall functionality of flow regulation, thus reducing structural complexity without compromising ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control means serves multiple functions: it can block flow from different inlets (first or second inlet) and regulate flow to the outlet simultaneously. This multi-functionality consolidates what would otherwise require multiple separate valve components, reducing overall structural complexity while maintaining comprehensive flow control capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If a three-way globe valve is used for fluid mixing, then flow regulation is possible, but manufacturing cost increases

Engineering Contradiction:
Improveflow regulationVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

By segmenting the valve into a body and a separable control means that can be manufactured independently, the invention enables specialized manufacturing processes for each component. This reduces overall manufacturing cost compared to producing a monolithic globe valve structure with equivalent functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of using the traditional globe valve design where the stem and disc are integrated into a complex structure, this invention inverts the approach by using a separable control means that moves within the cruciform body. This inverted design simplifies manufacturing processes and reduces production costs while maintaining flow regulation capability.

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If a three-way globe valve is used for fluid mixing, then flow control is achieved, but mixing modulation accuracy decreases

Engineering Contradiction:
Improveflow controlVSAvoidmixing modulation accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The control means is designed to move dynamically between different positions (blocking first inlet, blocking second inlet, or partially blocking both) to achieve precise mixing modulation. This dynamic positioning capability, enabled by the separable control design, allows for accurate control of fluid mixing ratios that integrated globe valves cannot achieve.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The valve design incorporates feedback through the activator mechanism that responds to positioning forces and fluid pressure conditions. This feedback system enables the control means to automatically adjust its position for optimal mixing accuracy, maintaining precise flow control while improving modulation accuracy over traditional globe valve designs.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250180131A1Three-Way Valve, Particularly of the Type With a Modulating Function
Publication Date: 2025.06.05 RUBINETTERIE BRESCIANE BONOMI
  • US20250180131A1 patent drawing
  • US20250180131A1 patent drawing
  • US20250180131A1 patent drawing

AI summary

A three-way valve, particularly of the type with a modulating function, comprising a valve body having a substantially cruciform configuration and forming:a first inlet;a second inlet;an outlet; anda receptacle.Elements for controlling and/or blocking the flows of the fluids, and elements for activating the flow control and/or blocking elements are furthermore provided and accommodated in the receptacle;the control and/or blocking elements can be switched by virtue of the activation elements between a first configuration, in which the first inlet and the outlet are completely free and in which the second inlet is completely blocked, and a second configuration, in which the second inlet and the outlet are completely free and in which the first inlet is completely blocked, passing through a plurality of intermediate configurations in which the inlets are partially blocked with the outlet completely free.