Injector Evaluation Using Engine Power Rating Comparison
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Solution Overview
Problem
Existing methods struggle to efficiently and reliably evaluate the performance and identify faults in injectors of internal combustion engines, which can lead to deviations in fuel delivery due to aging or contamination, resulting in inefficiencies and performance issues.
Innovation Solution
A method for evaluating injectors based on power rating measurements, utilizing an electric device connected to the engine, by comparing power ratings in different operating states and shutdown conditions to assess injector performance and identify deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional methods are used to evaluate injector performance, then injector faults can be identified, but the evaluation process requires comparatively high effort and is complex
Solution Approach 1:
The patent introduces an intermediary variable (engine performance parameter such as power output or torque) that indirectly reflects injector performance. Instead of directly measuring injector characteristics, the method uses the intermediary effect of injector performance on overall engine performance to evaluate injector health, thereby simplifying the evaluation process while maintaining reliability
Solution Approach 2:
The evaluation method utilizes the engine's own operational parameters and performance characteristics to assess injector condition. The engine essentially evaluates itself by monitoring how injector performance affects overall engine output, eliminating the need for external complex testing equipment or procedures
2Reliability
If traditional methods are used to evaluate injector performance, then injector faults can be detected, but the process requires comparatively high effort and time
Solution Approach 1:
The method performs preliminary evaluation by continuously monitoring engine performance parameters during normal operation. By constantly tracking the intermediary variable (engine power/torque) and comparing it against expected values, the system proactively identifies injector degradation before it becomes a critical fault, reducing the time needed for formal evaluation
Solution Approach 2:
The evaluation process operates continuously during engine operation rather than requiring separate testing periods. The monitoring of engine performance parameters occurs throughout the engine's operational lifecycle, enabling real-time injector assessment without interrupting or extending the evaluation timeframe
Data Source
AI summary
A method for evaluating at least one injector of an internal combustion engine includes the steps of: evaluating a plurality of the at least one injector of the internal combustion engine based on a power rating which is associated with an electric device that is operatively connected with the internal combustion engine.