Multi-Plane Valve Structure With Integrated Sealing and Low Pressure Drop

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Solution Overview

Problem

Multi-port valves face increased complexity, part count, manufacturing costs, and potential leak paths due to multiple ports and external plumbing, which complicates fluid flow control across multiple planes.

Innovation Solution

A multi-port multi-plane valve design with a single-piece housing and integrated seals reduces part count and leak paths, enabling internal fluid flow control across multiple planes without external plumbing, using a rotatable shell body to manage fluid communication between ports.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple ports are added to the valve to enable multi-planar fluid flow control, then the functionality and versatility of the valve is improved, but the overall complexity and part count of the valve increases

Engineering Contradiction:
Improvemulti-planar fluid flow control capabilityVSAvoidvalve structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple ports (first through fifth ports) into a single integrated valve body structure, allowing multi-planar fluid flow control without requiring separate valves or complex external plumbing. The shell body integrates all port connections and internal flow paths into one unified component, reducing the number of separate parts while maintaining the ability to control flow across multiple planes.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a fifth port positioned in a different plane (perpendicular to the first plane) than the traditional four ports, enabling three-dimensional fluid flow control. This dimensional addition allows the valve to manage fluid paths in multiple orientations without proportionally increasing complexity, as all ports are integrated into the single valve body.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If multiple inlets and outlets are welded onto the housing to create multiple ports, then the multi-port functionality is achieved, but the number of potential leak paths and manufacturing complexity increases

Engineering Contradiction:
Improvemulti-port functionalityVSAvoidleak path reduction
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The valve body, housing, and port structures are merged into a single integrated component manufactured as one piece. This eliminates the need for separate welding operations between multiple inlet/outlet components and the housing, thereby reducing the number of potential leak paths while maintaining multi-port functionality.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If multiple individual seals are used to seal the various ports, then the sealing effectiveness is improved, but the overall cost and complexity of the valve increases

Engineering Contradiction:
Improveport sealing effectivenessVSAvoidseal quantity and arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a single seal member that provides sealing for multiple ports simultaneously. This unified seal approach maintains effective sealing across all port connections without requiring multiple separate seal components, thereby reducing the number of parts and simplifying the overall valve structure while preserving sealing reliability.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If external plumbing is used to provide fluid flow in multiple planes, then the multi-planar flow capability is achieved, but the required volume or footprint of the overall fluid control system increases

Engineering Contradiction:
Improvemulti-planar fluid flow capabilityVSAvoidsystem footprint
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The patent integrates all multi-planar fluid flow control functionality into a single compact valve body, eliminating the need for external plumbing components. The first through fifth ports are all connected through internal passages within the valve body itself, allowing multi-planar flow control to be achieved within the valve's own volume rather than requiring additional external space for pipes and fittings.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3899329B1Multi-port multi-plane valve
Publication Date: 2024.11.20 ROBERTSHAW CONTROLS CO
  • EP3899329B1 patent drawingFigure 1~2
  • EP3899329B1 patent drawingFigure 3~4
  • EP3899329B1 patent drawingFigure 5~6

AI summary

Embodiments of a multi-port multi-plane valve are provided. The multi-port multi-plane valve includes a housing which defines an internal cavity. The housing further includes a plurality of ports in which each port lies within one of two planes that are normal to each other. Each of the plurality of ports is in communication with the internal cavity. A shell body is rotatably disposed within the internal cavity and provides selectable fluid communications between the ports. A seal member is also provided which has a plurality of openings and surrounds the shell body. At least one flow enhancer channel may be included to reduce the pressure drop occurring on one side of the valve when controlling flow paths on the other side of the valve.