Cylinder Oil Temperature Control for Uniform Two-Stroke Injection
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Solution Overview
Problem
Traditional lubrication systems in two-stroke diesel engines face challenges in achieving uniform injection patterns due to varying lubricating oil temperatures, which affect viscosity and lead to uneven lubrication, despite efforts to control injection pressure and nozzle design.
Innovation Solution
A method and system that measure and regulate the temperature of lubricating oil and cylinder linings to adjust viscosity, using a computer-controlled temperature regulating unit to ensure consistent injection, even when direct oil temperature measurement is not possible, by correlating temperature data with viscosity to achieve uniform lubrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If lubricating oil temperature is not regulated, then the system structure remains simple, but viscosity varies leading to uneven injection pattern
Solution Approach 1:
The patent applies parameter changes by regulating the temperature of the lubricating oil to maintain consistent viscosity. A temperature regulating unit heats or cools the oil before injection based on measured temperature data, ensuring the injection parameters remain stable despite varying operating conditions, thus achieving uniform injection patterns.
Solution Approach 2:
The patent implements feedback control by measuring the temperature of the lubricating oil with temperature sensors and using this data to control the temperature regulating unit. The computer processes the temperature data and adjusts the heating or cooling action accordingly, creating a closed-loop system that maintains optimal injection conditions.
2Manufacturing precision
If temperature regulation is implemented, then injection uniformity is improved, but system complexity and energy consumption increase
Solution Approach 1:
The patent applies partial action by implementing temperature regulation only when deviations from optimal temperature ranges are detected. The system monitors temperature continuously and activates heating or cooling only when necessary, rather than maintaining constant regulation, thus reducing energy consumption while still achieving consistent injection uniformity.
3Measurement precision
If multiple temperature sensors are used, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by placing multiple temperature sensors at different locations in the lubricating oil path (e.g., in the reservoir and near the injectors). This分段 measurement approach allows the system to capture temperature variations at different points, improving overall measurement accuracy without requiring a single complex sensor.
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 precise control of lubrication patterns, optimizing lubricating oil distribution and reducing friction, enabling a consistent and efficient lubrication process across varying engine conditions.
Implementation Method 1
establishing a temperature regulation of the lubricating oil before injection into the cylinder for influencing the viscosity of the lubricating oil such that a uniform injection is established
Implementation Method 2
measuring units for establishing data indicating temperature of the lubricating oil in the injector
Data Source
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AI summary
The method comprises steps for delivering lubricating oil under pressure from a lubricating oil reservoir (7) via a forced lubrication system to injectors (3) provided in the cylinder walls. A number of injectors (3) are used, each adapted for injecting a dosed amount of lubricating oil into each cylinder. The method further includes steps of: - establishing data indicating the temperature of cylinder linings (5); - establishing data that indicate the temperature of the lubricating oil in the lubricating oil reservoir (7); - storing the temperature data for cylinder linings (5) and the lubricating oil in a computer; - establishing at least one temperature regulating unit (9) controlled by the computer and connected with the delivered lubricating oil for establishing a temperature regulation of the lubricating oil before injection into the cylinder; - controlling the temperature regulation of the lubricating oil in dependence of the temperature of the cylinder linings (5) and the temperature of the lubricating oil in the lubricating oil reservoir (7), as the computer controls heating/cooling in the temperature regulating unit (9) for influencing the viscosity of the lubricating oil such that a uniform injection independent of the temperature of the cylinder linings (5) is established.