Engine Vibration Imager for Real-Time Crankshaft Angle Diagnosis
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Solution Overview
Problem
Existing technologies fail to provide a real-time visual display of engine vibrations and stability in relation to crankshaft angle, which is crucial for diagnosing piston ring instability and other vibration events in engines.
Innovation Solution
An engine vibration imager comprising an accelerometer mounted on the engine block, an amplifier, and a light indicator connected to an indicator disk, which illuminates timing marks on the disk to visually represent vibration events during the engine cycle, allowing for real-time measurement of piston ring instability and other vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If engine vibrations are monitored using traditional prediction methods, then vibration analysis can be performed, but real-time visual display of vibrations in relation to crankshaft angle is not achieved
Solution Approach 1:
The patent replaces traditional mechanical vibration analysis methods with an optical display system. An accelerometer detects engine vibrations and converts them to electrical signals, which are then processed by a microprocessor and displayed visually on an indicator disk with timing marks. This substitution of mechanical prediction methods with electronic sensing and optical display enables real-time visualization of vibrations in relation to crankshaft angle, directly resolving the contradiction between measurement capability and information loss.
Solution Approach 2:
The patent introduces several intermediary components to bridge the gap between vibration detection and visual display. The accelerometer serves as an intermediary to convert mechanical vibrations into electrical signals. The microprocessor acts as an intermediary to process these signals and control the display timing. The indicator disk with timing marks serves as an intermediary to visually represent the phase relationship between vibrations and crankshaft angle. These intermediaries enable real-time visual information display while maintaining accurate vibration measurement.
2Reliability
If piston ring instability is diagnosed without real-time visual feedback, then engine operation continues, but direct observation of vibration events during combustion cycle is lost
Solution Approach 1:
The patent implements a real-time feedback system for engine vibration diagnosis. The accelerometer continuously monitors engine vibrations, the microprocessor processes the signals in real-time, and the indicator disk provides immediate visual feedback showing the phase relationship between vibrations and crankshaft angle. This feedback mechanism allows operators to directly observe vibration events such as piston ring instability during the combustion cycle without interrupting engine operation, thereby maintaining reliability while dramatically improving ease of operation for diagnosis.
Solution Approach 2:
The patent enables the engine diagnostic system to serve itself by providing continuous self-monitoring through the accelerometer and self-diagnosis capability through the visual display. The system automatically detects and displays vibration events without requiring external intervention or complex diagnostic procedures. The timing marks on the indicator disk automatically reference crankshaft angle, providing self-contained phase information. This self-service approach maintains engine operation continuity while making diagnosis straightforward and accessible.
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
Enables real-time visualization of engine vibrations, facilitating the diagnosis of piston ring instability and other issues, improving engine stability and performance by providing a direct visual representation of vibration events in relation to the combustion cycle.
Implementation Method 1
The accelerometer is preferably configured to detect engine vibration and generate a signal indicative of detected vibration
Implementation Method 2
The amplifier is preferably configured to amplify the signal indicative of detected vibration
Implementation Method 3
the light indicator is configured to emit light upon receiving the amplified signal indicative of detected vibration
Data Source
AI summary
An engine vibration imager and method of testing engine stability. An accelerometer, mounted to an engine block, is configured to detect engine vibration and generate a signal indicative of detected vibration. An amplifier, electrically coupled to the accelerometer, is configured to amplify the signal indicative of detected vibration. A light indicator, electrically coupled to the amplifier, is configured to emit light upon receiving the amplified signal. The engine vibration imager also includes an indicator disk including timing marks on a first surface of the indicator disk. The indicator disk is rotatable by the crankshaft and light emitted from the light indicator is visible at the first surface of the indicator disk and indicates on the indicator disk a point in the combustion cycle in which engine vibration is detected.


