Spark Plug Electrode Gap Setting Tool Parallel Jaw Mechanism
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Solution Overview
Problem
Existing tools for setting spark plug electrode gaps often result in uneven erosion and shorter spark plug life due to improper gap adjustment, leading to poorer engine ignition performance.
Innovation Solution
The development of spark plug electrode gap setting pliers with jaw portions and shims that allow for parallel closure to create a precise and even gap between electrodes, enabling interchangeable shims for various gap settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional electrode gap setting tools are used, then the gap can be adjusted, but the gap setting is uneven and imprecise, resulting in improper adjustment
Solution Approach 1:
A shim is introduced as an intermediary element between the electrode and the adjustment tool. The shim provides a precise, uniform thickness that ensures even gap setting across the entire electrode surface. The jaw portion applies force through the shim, which distributes the pressure uniformly, resulting in precise and uniform gap adjustment.
Solution Approach 2:
The tool is designed with interchangeable shims that have predetermined thicknesses corresponding to specific gap requirements. The user selects the appropriate shim based on the desired gap, and the shim itself provides the precise dimensional reference needed for accurate gap setting, eliminating the need for complex measurement and adjustment procedures.
2Adaptability or versatility
If interchangeable shims are used, then various gap settings can be achieved, but the device complexity increases
Solution Approach 1:
The adjustment system is segmented into modular components: a handle portion, a jaw portion, and multiple interchangeable shims. Each component serves a specific function, and the shims can be independently selected and replaced based on the required gap setting. This segmentation allows for versatility without requiring complex integrated mechanisms.
Solution Approach 2:
The basic tool structure (handle and jaw portions) serves multiple functions by working with different shim thicknesses. The same jaw portion can accommodate various shims to achieve different gap settings, making the tool universally applicable for multiple gap requirements without needing separate specialized tools for each gap size.
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 solution ensures a more accurate and parallel gap setting, leading to even electrode erosion and extended spark plug life by allowing for customizable gap distances and improved ignition performance.
Implementation Method 1
the first and second jaw portions close in parallel to bend respective electrode supports of a pair of electrodes or to bend the pair of electrodes to provide a parallel gap between the pair of electrodes
Implementation Method 2
The second longitudinal length of the second portion of the first jaw portion and the fourth longitudinal length of the fourth portion of the second jaw portion, upon actuation of the first and second handle portions, provide a bending moment to the first and second shims, respectively, to bend respective electrode supports
Data Source
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AI summary
A spark plug electrode gap setting pliers (10) is provided. The pliers (10) include a first jaw portion (18) coupled to a first shim (84) and a second jaw portion (20) coupled to a second shim (84). Upon actuation of the pliers (10), the first and second jaw portions (18,20) close in parallel to bend respective electrode supports of a pair of electrodes, or to bend the pair of electrodes to provide a parallel gap between the pair of electrodes.