Disk Valve Leak Prevention via Integrated Housing Paths

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing disk valves with leakage protection require complex and costly attachment parts and sealing mechanisms, making them inefficient for simple leakage discharge and flushing of the annular groove.

Innovation Solution

The design modifies the disk valve by routing the connecting paths between the longitudinal journal bores and channels entirely within the valve housing part, eliminating the need for external attachment parts and using a switching seal with radial and axial preload for enhanced sealing and ease of production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the connecting paths between the longitudinal journal bores and channels are routed through an external attachment part, then the sealing and leakage discharge function is achieved, but the device complexity and manufacturing cost increase

Engineering Contradiction:

Improvesealing and leakage discharge functionVSAvoidattachment part and sealing mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the attachment part functions into the valve housing itself. The connecting paths are routed through the valve housing parts directly, eliminating the need for separate attachment parts. The switching seal is integrated into the valve housing structure, combining multiple functions (sealing, leakage discharge, flushing) into a single integrated component rather than requiring separate attachment parts.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the attachment part from the system entirely. Instead of adding an external attachment part to achieve sealing and leakage discharge, the design removes this unnecessary component by routing all fluid paths through the valve housing itself, simplifying the overall structure while maintaining the required functions.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If the connecting paths are routed through an external attachment part, then the sealing function is achieved, but the ease of manufacture decreases

Engineering Contradiction:

Improvesealing functionVSAvoidconstruction simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The valve housing parts are designed to directly accommodate the longitudinal journal bores and channels, merging the housing structure with the fluid path structure. This eliminates the need for separate attachment parts and reduces the number of assembly steps, making manufacturing easier while maintaining sealing integrity through the integrated switching seal design.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If the longitudinal journal bores emerge in the parting surface, then the connection to channels is achieved, but the device complexity increases due to angled line guides and plugs

Engineering Contradiction:

Improveleakage discharge and flushing capabilityVSAvoidangled line guides and plugs

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

Instead of having the longitudinal journal bores emerge in the parting surface and requiring complex angled line guides to connect to channels, the patent inverts the approach by routing the channels to connect directly to the journal bores through the valve housing parts. This eliminates the need for angled line guides and plugs, simplifying the structure while maintaining the same operational capability for leakage discharge and flushing.

Inventive Principle:

Principle #13The other way round (Inversion)

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 design simplifies the construction and operation of the disk valve, ensuring effective leakage discharge and flushing while reducing complexity and costs, with improved sealing and operational reliability.

Implementation Method 1

switching seal with radial and axial preload for enhanced sealing

Methodology Applied

Scientific EffectRadial preload: Mechanical Force

Implementation Method 2

switching seal with radial and axial preload for enhanced sealing

Methodology Applied

Scientific EffectAxial preload: Mechanical Force

Implementation Method 3

two spaced, circumferential sealing points between which a leakage cavity is formed

Methodology Applied

Scientific EffectFluid separation: Flow Separation

Data Source

PatentEP2352938B1Disk valve with leak prevention

Publication Date: 2012.09.26 GEA TUCHENHAGEN GMBH

Figure 1~1a
Figure 2
Figure 3

AI summary

The invention relates to a disk valve (1) with leak prevention, having a valve housing (2) which is divided along a parting surface (5) and which has a first valve housing part (2a) with a first passage opening (2a*) and a second valve housing part (2b) with a second passage opening (2b*), having a disk-shaped closing member (3) for closing and opening the passage openings (2a*, 2b*), which closing member (3) is rotatable about a rotational axis (L) which runs in the valve housing (2), and having the further features of the preamble of claim 1. It is an object of the present invention to provide a disk valve with leak prevention of the generic type which ensures simple leakage discharge out of the annular groove in the closing member and a simple facility for flushing said annular groove, and which is of simpler design than the known solutions. This is achieved in that each of the connecting paths between the journal longitudinal bore (3d.4, 3d.5) and the associated duct (11a, 12a) is formed entirely in the associated valve housing part (2a, 2b), in each case proceeding from the outer side of the interposed switching seal (9; 9*) as viewed in the radial direction.