Encapsulated Electric Igniter for Flashpoint Tester
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Solution Overview
Problem
Conventional ignition devices for flashpoint determination tests are sensitive to damage and require complex drivers, including high voltage, making them unreliable and difficult to operate stably.
Innovation Solution
A device with an electric igniter having a partially or completely encapsulated electric wire and a traversing mechanism to move the ignition tip to a defined position within the container, allowing for reliable electric ignition without high voltage and minimizing damage risk, using a direct current voltage and a coiled glow filament for efficient heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ignition devices (open glow wire, coiled glow filament, spark gap, gas flame) are used, then ignition capability is achieved, but the device becomes sensitive to damage and requires complex high voltage drivers
Solution Approach 1:
The patent replaces conventional mechanical ignition systems (open glow wires, spark gaps, gas flames) with an electrically heated ignition rod that uses simple DC voltage heating. The ignition rod is heated by passing current through it, eliminating the need for complex high voltage drivers, spark gap mechanisms, or gas supply systems while maintaining reliable ignition capability.
Solution Approach 2:
The ignition rod is designed as a replaceable, relatively simple component that can be easily replaced if damaged. This approach trades the longevity of complex high-voltage systems for a simple, inexpensive replacement part, reducing overall system complexity and cost.
2Ease of operation
If open glow wire or coiled glow filament is used for ignition, then ignition is achieved, but the device is sensitive to damage and difficult to operate stably
Solution Approach 1:
The patent replaces fragile mechanical ignition elements (open glow wires that can break, coiled filaments that can burn out) with a robust electrically heated rod. The rod's simple structure and electrical heating mechanism eliminate the operational instability and damage sensitivity associated with conventional ignition devices.
3Device complexity
If high voltage drivers are used for ignition, then ignition capability is achieved, but the system becomes complex and difficult to operate
Solution Approach 1:
The patent substitutes high voltage electrical systems with a simple DC voltage heating system. Instead of using high voltage to create sparks or sustain glow discharges, the system uses low-voltage DC current to heat the ignition rod directly, dramatically simplifying the electrical system while maintaining ignition effectiveness.
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 solution provides a robust and stable ignition system that can operate within a wide temperature range, ensuring reliable flashpoint determination without the need for high voltage or complex drivers, reducing the risk of damage and improving operational simplicity.
Implementation Method 1
using a direct current voltage and a coiled glow filament for efficient heating
Data Source
AI summary
A device for igniting a sample arranged in a container for a flashpoint determination test and/or a combustion point determination test. The device has an electric igniter, which has an ignition tip having a partially or completely encapsulated electric wire; and a traversing device, which is configured for traversing the ignition tip of the electric igniter to a defined position within the container.