Vapor Space Anticorrosive Composition for Engine Residue Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Corrosion protection in hollow objects is inadequate, especially after the removal of liquid-based running-in compositions, as these objects are left exposed to air and can corrode due to residual liquid residues, leading to accelerated corrosion in vapor spaces within engines.
Innovation Solution
A vapor space anticorrosive composition comprising alkoxylated castor oil as a corrosion inhibitor and alkyl amine ethoxylates as surfactants, which provides effective corrosion protection even after the primary medium has been drained, suitable for use as an engine run-in composition or coolant, with a phase inversion temperature tailored for improved protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid-based running-in compositions are used for engine corrosion protection, then corrosion protection is provided during operation, but after draining the liquid, residual residues remain that accelerate corrosion in vapor spaces
Solution Approach 1:
The invention changes the physical-chemical parameters of the corrosion protection system by introducing a vapor-active corrosion inhibitor that operates in the vapor phase rather than liquid phase. The composition is designed to evaporate and form a protective vapor atmosphere, transforming the mode of action from liquid-based to vapor-based corrosion protection, thereby eliminating the problem of corrosive residues.
Solution Approach 2:
The invention extracts and isolates the corrosion protection function to operate independently in the vapor phase. By using volatile corrosion inhibitors that evaporate and protect surfaces in the vapor space, the system separates the protection mechanism from the liquid coolant, allowing the liquid to be drained while the vapor-phase protection remains effective.
2Reliability
If conventional vapor space corrosion inhibitors are used, then some corrosion protection is provided, but the protection is insufficient and does not maintain efficacy after the primary medium is removed
Solution Approach 1:
The invention applies preliminary action by having the corrosion inhibitor evaporate and establish a protective vapor atmosphere before the liquid is drained. The vapor-phase inhibitor is already in position and active when the liquid coolant is removed, ensuring continuous protection without interruption or loss of efficacy.
Solution Approach 2:
The invention ensures continuity of useful action by designing a system where the corrosion protection transitions smoothly from liquid phase to vapor phase. The volatile inhibitor maintains continuous protective action throughout the draining process and afterward, eliminating gaps in protection that occur with conventional liquid-based 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 composition effectively inhibits corrosion in metal objects and others made of corrosion-prone materials by forming a protective layer that maintains efficacy even after the primary medium has been removed, significantly reducing corrosion in vapor spaces within engines and other hollow structures.
Implementation Method 1
The composition effectively inhibits corrosion in metal objects and others made of corrosion-prone materials by forming a protective layer
Implementation Method 2
A vapor space anticorrosive composition comprising alkoxylated castor oil as a corrosion inhibitor and alkyl amine ethoxylates as surfactants
Data Source
AI summary
The present invention refers to a vapor space anticorrosive composition comprising corrosion inhibitors, surfactants and possibly thickeners, wherein one surfactant is selected from alkylamine ethoxylates, and being useful as an engine run-in composition and as a coolant.