Induction Cleaning With Alternating Chemical Layers
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Solution Overview
Problem
Existing methods for cleaning the induction system of internal combustion engines are inefficient, as they fail to effectively deliver cleaning chemicals to all areas, particularly in modern engine designs with scroll-style intake tracts, leading to incomplete carbon removal and potential engine damage.
Innovation Solution
The method involves using electronically controlled solenoids to deliver two different chemical compositions in alternating stages, with pause periods between applications to allow for soaking and increased chemical volume, ensuring effective coverage and prevention of overheating in the catalytic converter and turbocharger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cleaning chemicals are delivered continuously to the induction system, then carbon removal efficiency is improved, but the catalytic converter and turbocharger may overheat and be damaged
Solution Approach 1:
The patent applies periodic action by delivering cleaning chemicals in alternating layers with pause periods between applications. The controller activates solenoids to deliver first and second chemistries in timed intervals, creating a periodic delivery pattern that allows cooling periods between chemical applications, thus preventing overheating while maintaining carbon removal efficiency
Solution Approach 2:
The cleaning process is segmented into multiple alternating layers of different chemistries delivered at different times. Instead of continuous delivery of a single chemistry, the system divides the cleaning process into discrete segments (first chemistry layer, pause, second chemistry layer, pause) that can be independently controlled to manage heat generation
2Productivity
If cleaning chemicals are delivered in timed intervals in alternating layers, then carbon removal effectiveness is improved, but the device complexity increases due to multiple solenoids and control systems
Solution Approach 1:
The controller serves multiple functions by managing both solenoid activation sequences and timing of chemistry delivery. This multi-functional control system coordinates the alternating layer delivery, pause timing, and solenoid switching, reducing the need for separate dedicated components for each function
Solution Approach 2:
The system uses the engine's own operating conditions (intake airflow, combustion cycles) to naturally distribute and deliver the cleaning chemicals throughout the induction system. The chemistries are delivered through existing intake pathways without requiring separate delivery mechanisms, allowing the engine operation itself to facilitate the cleaning process
3Device complexity
If a single chemistry is used for cleaning, then the device complexity is reduced, but the ability to remove different types of carbon deposits is limited
Solution Approach 1:
Different chemistries are applied at different times to target different types of carbon deposits in different locations of the induction system. The first chemistry addresses certain deposit types while the second chemistry targets other deposit types, creating a locally optimized cleaning approach that handles diverse carbon accumulation patterns throughout the system
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 approach allows for thorough and efficient removal of carbon deposits from the induction system, improving engine performance, reducing tailpipe emissions, and preventing engine damage by ensuring adequate contact time and volume of cleaning chemicals.
Implementation Method 1
The method includes applying the first chemistry to the induction system for a first period of time (a stage); applying the second chemistry to the induction system for a second period of time (a second stage)
Implementation Method 2
including a time period (a pause stage) between the first and second stages wherein neither the first nor the second chemistry is being applied to the induction system to thereby permit at least one of the group including the first chemistry and the second chemistry to at least partially soak the carbon buildup in the induction system
Data Source
AI summary
This invention relates to the field of induction cleaning, more particularly to chemically cleaning the induction system of the internal combustion engine. The carbon that accumulates within the induction tract of the internal combustion engine is very difficult to remove. Chemically these carbon deposits are very close to that of asphalt or bitumen. It has been found that if the induction cleaning chemicals are delivered in timed layered intervals the removal of such induction carbon can be accomplished. The Dual Solenoid Induction Cleaner uses electronically controlled solenoids to deliver at least two different chemistries in alternating layers to the engine's induction system. These electric solenoids are connected to a single induction cleaner nozzle. The induction cleaner nozzle is slipped through the vacuum port opening into the inside of the induction system where it will spray an aerosol of the chemistry directly into the moving air column entering the engine.