Valve Head Control Disk Depression for Filter Pressure Management

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Solution Overview

Problem

Sanitary fittings with integrated filter modules face durability issues due to continuous water pressure, leading to unintended water escape from the filter module, especially under temperature and pressure changes.

Innovation Solution

The upper valve part design incorporates a depression in the control disk for connecting water inlet and outlet channels, allowing for rotational positioning to prevent water escape, and features a lateral window for additional inlet connection, ensuring the filter module can be securely integrated and pressure equalized, while a metal head piece prevents deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a filter module is continuously connected upstream of the upper part of the valve, then water quality is improved, but the filter module is continuously subjected to water pressure which affects its durability

Engineering Contradiction:

Improvedurability of filter moduleVSAvoidcontinuous water pressure

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The control disk is designed with a depression that allows the inlet channel to be closed before the filter module is fully pressurized during operation. This preliminary closing action prevents the filter module from being continuously subjected to high water pressure, thereby improving its durability while maintaining water quality filtration functionality

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the filter module is subjected to temperature and pressure changes, then water expansion occurs, but water escapes unintentionally through the fitting

Engineering Contradiction:

Improveresponse to temperature and pressure changesVSAvoidunintended water escape

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The control disk with its depression structure enables the inlet channel to be closed in advance before water expansion occurs due to temperature and pressure changes. This preliminary anti-action prevents the harmful effect of unintended water escape while allowing the system to adapt to environmental changes

Inventive Principle:

Principle #9Preliminary anti-action

3Reliability

If the control disk is designed with a depression for channel connection, then rotational positioning to prevent water escape is enabled, but device complexity increases

Engineering Contradiction:

Improvewater escape preventionVSAvoidcontrol disk structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The control disk with its depression serves multiple functions: it connects the inlet and outlet channels, enables rotational positioning for water escape prevention, and allows for pressure equalization. By integrating these multiple functions into a single component, the design achieves reliable water escape prevention without proportionally increasing device complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3062002B1Upper part of a valve

Publication Date: 2018.04.04 FLUHS DREHTECHN GMBH

Figure 1a~1b
Figure 2a~3b
Figure 4a~5d

AI summary

The invention relates to a valve head for sanitary fittings, comprising a head piece that accommodates a base piece having two inlet channels and at least one first outlet channel, and a disc control with a control disc which is displaceable relative to a rotationally fixed flow disc via a rotatably mounted spindle, wherein a second outlet channel is arranged for water withdrawal. A connecting channel (31) is provided in the control disc (3), via which a first inlet channel (51) and the first outlet channel (52) can be connected in a rotational position of the control disc (3) relative to the flow disc (4).