Stacked Multi-Way Valve Assembly with Pluggable Adapter

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Solution Overview

Problem

Conventional valve units with multi-way valves arranged in a row face challenges in achieving high flow rates due to narrow valve designs, which restricts the flow of pressure medium and makes external connections difficult to access, especially as the unit length increases with the number of valves.

Innovation Solution

The integration of a pluggable adapter element between adjacent multi-way valves with larger cross-section connections allows for increased flow rates without altering the overall unit design, enabling the use of standard valves for larger flow applications and facilitating easy retrofitting and assembly/disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple valves are arranged in a row to form a compact valve unit, then the overall structure becomes space-saving and easy to install, but the overall length increases directly with the number of valves

Engineering Contradiction:
Improvefootprint area of valve unitVSAvoidoverall length of valve unit
Core Design Contradiction:
Area of stationary objectVSLength of moving object

Solution Approach 1:

The patent combines multiple valve functions into a single integrated valve unit with a common feed pressure channel that serves all valves. This merging approach reduces the overall footprint area while maintaining the necessary valve functions, resolving the contradiction between compactness and length by consolidating shared resources.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common feed pressure channel serves multiple valves simultaneously, providing a universal supply path that reduces the need for separate feeding mechanisms for each valve. This multi-functionality approach minimizes the overall structural footprint while supporting multiple valve operations.

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

2Length of moving object

If individual valves are made extremely narrow to minimize the overall length of the valve unit, then the length is reduced, but the flow value of pressure medium through the valves decreases

Engineering Contradiction:
Improveoverall length of valve unitVSAvoidflow rate of pressure medium
Core Design Contradiction:
Length of moving objectVSQuantity of substance

Solution Approach 1:

The patent combines the flow paths of multiple valves through a common feed pressure channel and allows for flow combination using adapter elements. This merging of flow paths enables the system to achieve high total flow rates even when individual valves are compact, resolving the contradiction between narrow valve design and flow capacity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from considering flow capacity in a single dimension (individual valve width) to utilizing multiple dimensions by combining flows from multiple valves through the common feed pressure channel. This dimensional approach allows compact individual valves to collectively provide high flow rates.

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

3Length of moving object

If individual valves are made extremely narrow to minimize length, then the length is reduced, but the accessibility of external connections for working lines becomes difficult

Engineering Contradiction:
Improveoverall length of valve unitVSAvoidaccessibility of external connections
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The patent combines multiple valve functions and connections into a single integrated unit with a common feed pressure channel. This consolidation improves accessibility by providing centralized connection points that are easier to reach compared to distributed connections on multiple narrow valves, while maintaining compact dimensions.

Inventive Principle:
Principle #5Merging (Combining)

4Quantity of substance

If standard valves are used for larger flow applications, then the flow rate increases, but the valves cannot be integrated into the slot in the valve unit

Engineering Contradiction:
Improveflow rate of pressure mediumVSAvoidintegration complexity into valve unit
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent employs adapter elements that combine the flows of adjacent multi-way valves and provide plug-in connections for larger cross-sections. This merging capability allows standard valves to be integrated into the compact valve unit slot while achieving high flow rates through flow combination, resolving the contradiction between flow capacity and integration feasibility.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The adapter element acts as an intermediary component that bridges the gap between standard valves and the compact valve unit slot. It provides the necessary flow combination and connection adaptation, enabling standard valves to be integrated into the standardized slot design while maintaining high flow capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2068006B1Valve assembly comprising multiple stacked multi-way valve plates
Publication Date: 2011.08.31 ROBERT BOSCH GMBH
  • EP2068006B1 patent drawingFigure 1
  • EP2068006B1 patent drawingFigure 2~3

AI summary

The unit has working connectors (6a, 6b) arranged at a front side (5) of each manifold valve (1a-1h) for detachable connection of an operating pressure line. The working connectors of the two valves (1a, 1b) are provided with an adapter element (8) insertable in the valves. A plug connector corresponding to the working connectors is arranged relative to large cross-section of the adapter element to bring together the neighboring valves (1a, 1b). The adapter element has a single-piece housing, which is formed as a plastic injection-molding part.