Sealed Injection Tool for Engine Combustion Chamber Cleaning
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Solution Overview
Problem
Existing methods for cleaning internal combustion engine combustion chambers are inconvenient, require multiple operators, pose health risks due to toxic fumes, and incur high costs for protective equipment and disposal, while being inefficient in residue removal.
Innovation Solution
A single-user tool for injecting cleaning products into the combustion chamber, featuring a sealing surface that secures against the spark plug seat, utilizing the engine's ignition coil housing for support, with a sealed connection to a cleaning product container and an injection nozzle, allowing single-operator operation and preventing direct contact with the product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If aerosol spray is used for cleaning combustion chambers, then cleaning can be performed without specialized equipment, but operator health is at risk due to toxic fumes and direct product contact
Solution Approach 1:
The patent introduces a sealed injection system as an intermediary between the cleaning product container and the combustion chamber. This system includes a sealed connection interface that couples to the spark plug housing, creating a closed pathway for product delivery. The intermediary sealed system eliminates direct exposure to toxic aerosol spray while maintaining effective cleaning product delivery to the combustion chamber.
2Ease of operation
If flexible hose fitting is screwed onto spark plug threads, then cleaning product can be injected, but the procedure requires two operators and appropriate protective equipment
Solution Approach 1:
The patent combines multiple functions into a single integrated tool: the injection nozzle, sealing elements, and mounting mechanism are merged into one device that replaces the spark plug. This unified design eliminates the need for separate protective equipment and multiple operators, as the tool itself provides both the sealing and injection functions while being securely mounted as a single unit.
Solution Approach 2:
The injection tool is designed to perform multiple functions simultaneously: it seals the combustion chamber, delivers the cleaning product through controlled injection, and maintains structural support during the cleaning cycle. This multi-functional design replaces the need for separate protective equipment and multiple operators, simplifying the overall procedure.
3Reliability
If spark plug housing openings are plugged during cleaning cycle, then product containment is improved, but disposal costs increase due to contaminated materials
Solution Approach 1:
The patent employs a reusable sealed injection tool that can be removed and cleaned externally, rather than requiring disposal of single-use plugs and protective materials. The tool's sealed design contains the cleaning product during injection, and after removal, the tool itself can be recovered and cleaned, eliminating the need to dispose of contaminated rags, plugs, and protective equipment.
4Ease of operation
If sealed injection system is implemented, then single-operator operation is enabled and product contact is prevented, but the tool structure becomes more complex
Solution Approach 1:
The patent utilizes the existing spark plug housing structure as a nested container for the injection tool. The tool is designed to fit within and utilize the existing spark plug bore and housing, nesting the injection mechanism within the already-present structural framework. This reduces the need for additional external support structures and simplifies the overall system complexity.
Solution Approach 2:
The injection tool is designed to be self-containing, with all sealing, injection, and mounting functions integrated into the tool itself. The tool provides its own sealing elements and mounting mechanism, eliminating the need for external protective equipment or additional operator assistance. This self-service design enables single-operator operation despite the integrated complexity.
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 tool enables safe, efficient, and cost-effective cleaning of combustion chambers by a single operator, reducing health risks and disposal costs, while ensuring complete residue removal and minimizing product contact.
Implementation Method 1
a sealing surface arranged to be mounted in support of said spark plug seat and to resist a predetermined pressure, under a clamping force applied, when said tool is positioned in support of said spark plug seat, by means of at least one support element comprising at least one mounting element on the engine cooperating with said engine coil mounting
Data Source
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AI summary
The invention relates to a device (1000) for injecting cleaning product into a combustion chamber, comprising a tool (100) that can be operated by a single user, positioned in place of an ignition coil and a spark plug, having a sealing surface (10) that can be mounted against a seat under the clamping force of a fastening element (90) on the engine, this tool (100) having a body (50) having, at a first end (1), a connecting element (2) cooperating in a complementary and sealing manner with a container (200) containing a cleaning product, this connecting element (2) having an inlet orifice (3) of a main channel (5) of the tool body (50) to at least one outlet orifice (6), which has at a second end (7) on the engine side an injection nozzle (8), the fastening element (90) being mounted away from the spark plug thread of the cylinder and not aligned with the seat and the thread.