Gas Regulating Fitting Manual Switching via Tappet Microswitch
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Solution Overview
Problem
Existing gas regulating fittings for gas-fired heating devices require significant effort and are complicated for manual operation, as they often necessitate remote control operation and lack a straightforward method for switching on and off.
Innovation Solution
A microswitch connected to the electronic control unit is activated manually, allowing for easy switching on or off by a tappet, with a display like an LED indicating the operating mode, enabling direct manual operation and simplifying the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is implemented in existing gas regulating fittings, then direct operation becomes possible, but the operation requires considerable effort and is complicated
Solution Approach 1:
The patent combines multiple functions (ignition activation, operation mode switching, and display control) into a single manual actuation of the tappet. The tappet simultaneously triggers the microswitch for ignition, controls the main valve, and updates the display, eliminating the need for separate operations and reducing overall complexity.
Solution Approach 2:
The tappet serves multiple functions: it acts as a manual ignition trigger, an operation mode switch (on/off), and a display controller. This multi-functionality reduces the number of separate components and operations needed, making the device easier to operate despite the sophisticated underlying mechanisms.
2Adaptability or versatility
If remote control operation is used, then direct operation is not required, but the device cannot be operated directly
Solution Approach 1:
The gas regulating fitting is designed to support multiple operation modes (remote control and direct manual operation) through the same hardware infrastructure. The electronic control unit and microswitch arrangement enable both remote activation and local tappet operation, providing versatility without requiring separate systems.
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 allows for simple and efficient manual operation of the gas regulating fitting, enabling easy switching between on and off states, reducing operational complexity and effort.
Implementation Method 1
a microswitch connected to the electronic control unit is arranged on the housing and is activated in a longitudinal direction against the force of the restoring spring when the tappet is manually activated. The electronic control unit thereby receives an electrical signal
Implementation Method 2
a safety pilot magnet is triggered by the generation of a holding current supplied by a voltage source... a thermocouple provides the required holding current after the gas flow has been ignited
Implementation Method 3
An advantageous embodiment of the gas regulating fitting has thus proved to be an arrangement of a display on the housing to display the operating mode, for example an LED which lights up when the gas regulating fitting is switched on
Data Source
AI summary
A gas regulating fitting that ensures simple manual operation is to be created. In particular, the device is to be capable of being switched both on and off in one operation. To that end, a microswitch (12) connected to an electronic control unit is arranged on the housing (1). The microswitch is operated when a tappet (10) arranged axially to the safety pilot valve (26) and the main valve (19) is manually operated. The electronic control unit thereby receives an electrical signal whereby the gas regulating fitting is activated in its switched-off state, and the gas flow flowing through the open safety pilot valve (26) is therefore ignited, whereas the holding current flowing to the thermoelectric safety pilot valve (26) is interrupted in the switched-on state of the gas regulating fitting, and the gas regulating fitting is therefore deactivated. The gas regulating fitting can be used to ignite and regulate a gas flow flowing to a burner.