Valve Nozzle Support Surface Segmentation

Solution Overview

Problem

In existing nozzle designs for valves, the wear and aging of the nipple material lead to increased sealing surface and holding force, resulting in larger armature stroke and current draw, which limits the service life and increases the risk of leakage, especially in electromagnetic valves.

Innovation Solution

The nozzle incorporates a support surface spaced from the nozzle edge, allowing the nipple to rest on it instead of the edge, thereby preventing an increase in sealing surface and holding force, and providing precise positioning and reduced material stress, which optimizes the valve's operation and longevity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the nipple rests on the nozzle edge during operation, then the sealing function is achieved, but the sealing surface increases with wear leading to larger armature stroke and higher power consumption

Engineering Contradiction:

Improvesealing functionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The nozzle surface is segmented into two distinct functional zones: a sealing surface for creating the seal and a support surface for bearing the nipple weight. This segmentation prevents the nipple from pressing against the sealing surface, maintaining consistent sealing conditions throughout the nipple's service life and preventing increased power consumption.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the nozzle are given different functional qualities: the sealing surface is designed for optimal sealing contact, while the support surface is positioned to bear the nipple's mechanical load. This local differentiation ensures that wear does not affect the sealing surface, maintaining constant sealing quality and power consumption over time.

Inventive Principle:

Principle #3Local quality

2Duration of action of stationary object

If the nipple material wears out over time, then the service life increases, but the sealing surface area increases leading to larger armature stroke and leakage risk

Engineering Contradiction:

Improveservice lifeVSAvoidsealing reliability

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The nozzle surface is segmented into two distinct functional zones: a sealing surface for creating the seal and a support surface for bearing the nipple weight. This segmentation prevents the nipple from pressing against the sealing surface, maintaining consistent sealing conditions throughout the nipple's service life and preventing increased power consumption.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support function is extracted from the sealing surface and placed on a separate support surface. This allows the sealing surface to maintain its original dimensions and geometry throughout the nipple's service life, preventing the increase in sealing surface area that would otherwise occur due to nipple wear and migration.

Inventive Principle:

Principle #2Taking out (Extraction)

3Device complexity

If the nozzle edge provides both sealing and support functions, then the structure is simplified, but the armature stroke increases with nipple wear leading to higher current draw

Engineering Contradiction:

Improvenozzle structureVSAvoidcurrent draw

Core Design Contradiction:

Device complexityVSUse of energy by moving object

Solution Approach 1:

The nozzle surface is segmented into two distinct functional zones: a sealing surface for creating the seal and a support surface for bearing the nipple weight. This segmentation prevents the nipple from pressing against the sealing surface, maintaining consistent sealing conditions throughout the nipple's service life and preventing increased power consumption.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The nozzle body serves multiple functions: it provides the sealing surface for the nipple, the support surface for bearing the nipple weight, and the structural housing for the valve components. This multi-functionality achieves the separation of sealing and support functions while maintaining overall structural simplicity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 reduces the power consumption and extends the service life of solenoid valves by maintaining a consistent nipple position relative to the nozzle, minimizing material stress and leakage risks, while ensuring reliable sealing and support functions.

Implementation Method 1

a sealing element (2) and a stop element (3). In the closed state, the sealing element seals the valve between the valve seat and the valve member and is only slightly deformed in the process

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2364784B1Nozzle for a valve

Publication Date: 2016.05.18 SVM SCHULTZ VERWALTUNGS GMBH & CO KG

Figure 1a~1d
Figure 2a~2c

AI summary

The invention relates to a nozzle (1), in particular a nozzle (1) of a valve. The nozzle (1) has a nozzle opening (10) that can be closed or opened by a nipple (2), the nozzle opening (10) being bounded by a nozzle edge (11). The nozzle edge (11) interacts with the nipple (2). At least one support surface (4) for the nipple (2) is provided on the nozzle (1), spaced apart from the nozzle edge (11). The support surface (4) is spaced from the nozzle edge (11) by a spacer (5).