Integrated Electromagnetic Valve for Pressure Containers

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Solution Overview

Problem

Current electromagnetic valves for pressure containers require significant installation space and are costly due to the use of two separate valves for manual and electromagnetic shut-off, increasing both space and production costs.

Innovation Solution

An electromagnetic valve design that integrates a manual shut-off and electromagnetic shut-off using a single sealing element, a magnet coil, tappet, and spring element, where the tappet is pressed against the sealing element by a spring when de-activated to close the valve, and moved away by magnetic force to open it, with a movable stop part actuating the tappet to reduce installation space and component count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two separate valves are used for manual and electromagnetic shut-off, then reliable shut-off function is achieved, but installation space and production costs increase

Engineering Contradiction:
Improveshut-off functionVSAvoidinstallation space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent combines manual shut-off and electromagnetic shut-off functions into a single integrated valve body. The manual operating element and electromagnetic actuator share common components including the sealing element, valve seat, and valve body, eliminating the need for two separate valve assemblies while maintaining both shut-off functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The valve design implements multi-functionality where the same valve body, sealing element, and valve seat serve both manual shut-off operations and electromagnetic shut-off operations. The single sealing element can be actuated by either the manual operating element or the electromagnetic actuator, providing universal functionality for both control methods.

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

2Reliability

If two separate valves are used for manual and electromagnetic shut-off, then reliable shut-off function is achieved, but production costs increase

Engineering Contradiction:
Improveshut-off functionVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines manual shut-off and electromagnetic shut-off functions into a single integrated valve body. The manual operating element and electromagnetic actuator share common components including the sealing element, valve seat, and valve body, eliminating the need for two separate valve assemblies while maintaining both shut-off functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The valve design implements multi-functionality where the same valve body, sealing element, and valve seat serve both manual shut-off operations and electromagnetic shut-off operations. The single sealing element can be actuated by either the manual operating element or the electromagnetic actuator, providing universal functionality for both control methods.

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

3Reliability

If electromagnetic valve is closed in currentless state for safety, then safety is improved, but power consumption increases due to continuous holding current

Engineering Contradiction:
ImprovesafetyVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The electromagnetic actuator uses periodic pulsed current instead of continuous holding current. The coil is energized only during transient periods when valve state changes are required (opening or closing), and remains de-energized during stable states. This periodic activation maintains safety functionality while dramatically reducing average power consumption.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The valve utilizes the pressure differential of the fluid itself to maintain the closed position when the electromagnetic coil is de-energized. The upstream pressure naturally holds the sealing element against the valve seat, eliminating the need for continuous electromagnetic holding force and reducing power consumption to near zero during stable closed state.

Inventive Principle:
Principle #25Self-service

4Device complexity

If single sealing element is used for both manual and electromagnetic operation, then component count is reduced, but actuation force requirements increase

Engineering Contradiction:
Improvecomponent countVSAvoidactuation force
Core Design Contradiction:
Device complexityVSForce

Solution Approach 1:

The electromagnetic actuator uses periodic pulsed current instead of continuous holding current. The coil is energized only during transient periods when valve state changes are required (opening or closing), and remains de-energized during stable states. This periodic activation maintains safety functionality while dramatically reducing average power consumption.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The valve utilizes the pressure differential of the fluid itself to maintain the closed position when the electromagnetic coil is de-energized. The upstream pressure naturally holds the sealing element against the valve seat, eliminating the need for continuous electromagnetic holding force and reducing power consumption to near zero during stable closed state.

Inventive Principle:
Principle #25Self-service

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

The design reduces installation space and component count, allowing for reliable electromagnetic and manual operation of the valve with reduced force and time required to open, while maintaining low power consumption and cost-effectiveness.

Implementation Method 1

when the magnet coil is activated, the tappet can be moved away from the sealing element as far as the stop

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Implementation Method 2

the tappet pressed against the sealing element by the spring element

Methodology Applied
Scientific EffectSpring force: Spring

Implementation Method 3

presses the sealing element onto a second opening together with the force exerted by the pressure

Methodology Applied
Scientific EffectPressure force: Pressure Increase

Data Source

PatentUS9541213B2Electromagnetic valve for a pressure container
Publication Date: 2017.01.10 MAGNA STEYR FAHRZEUGTECHNIK AG & CO KG
  • US9541213B2 patent drawing
  • US9541213B2 patent drawing
  • US9541213B2 patent drawing

AI summary

An electromagnetic valve for a pressure container and which includes a manual shut-off of the valve, a stop, and an electromagnetic shut-off of the valve with a sealing element, a magnet coil, a tappet, and a spring element. When the magnet coil has been currentlessly switched and deactivated, the tappet pressed against the sealing element by the spring element presses the sealing element onto a second opening so as to suppress a fluidic connection from the pressure container. Also, when the magnet coil is activated, the tappet can be moved away from the sealing element as far as the stop, such that the fluidic connection can be released.