Removable Filter for Piston Cooling Apparatus
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Solution Overview
Problem
Conventional piston cooling apparatuses for internal combustion engines have complex structures due to integrated filters, making maintenance difficult and increasing costs, while filters that are not integrated require full apparatus replacement, also increasing costs and complexity.
Innovation Solution
A piston cooling apparatus with a removably mounted filter positioned upstream of the nozzle pipe, featuring a bottomed cylindrical shape with a smaller diameter hole than the oil injection port, allowing for easy mounting and removal, and a design that prevents filter displacement during maintenance, including a light pressure insertion operation and threaded engagement for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the filter is built within the main body of the cooling apparatus, then the assembling efficiency is high, but the maintenance work becomes complicated and the structure becomes complex
Solution Approach 1:
The filter is separated from the main body as a removable component. The filter can be easily detached from the main body without disassembling the entire cooling apparatus, allowing for simple maintenance while keeping the overall structure relatively simple.
2Productivity
If the filter is built within the main body of the cooling apparatus, then the assembling efficiency is high, but the cost increases due to complex main body structure
Solution Approach 1:
The filter is designed as a separate, removable component rather than being integrated into the main body. This segmentation allows the main body to have a simpler, less expensive structure while still providing filtering functionality through the detachable filter element.
3Device complexity
If the filter is irremovably mounted on the main body, then the structure is simplified, but the whole apparatus must be replaced during maintenance
Solution Approach 1:
The filter is designed with dynamic mounting characteristics - it can be easily attached to and detached from the main body during normal operation and maintenance. This dynamic design allows the filter to be replaced independently without replacing the entire apparatus, reducing maintenance costs while maintaining structural simplicity.
4Device complexity
If the filter is irremovably mounted on the main body, then the structure is simplified, but the maintenance work becomes more expensive
Solution Approach 1:
The filter is segmented from the main body as a removable component. This allows the main body to maintain a simple structure while the filter can be easily replaced during maintenance without affecting the overall apparatus, thereby reducing maintenance costs.
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
Facilitates simplified filter mounting and removal, enhances maintenance efficiency, and prevents filter displacement, reducing maintenance costs and complexity while ensuring continuous oil supply to the piston.
Implementation Method 1
a filter (26) disposed upstream of the nozzle pipe portion (21) on the flow passage of the oil
Implementation Method 2
oil is injected from this nozzle pipe... oil being injected toward the piston from the oil injection port
Data Source
AI summary
A piston cooling apparatus includes: a main body including a communication passage communicating with an oil path formed in an internal combustion engine; a nozzle pipe portion including an oil injection port configured to inject oil having passed through the communication passage toward a piston; and a filter disposed upstream of the nozzle pipe portion on the flow passage of the oil and including a hole having a smaller diameter than the minimum diameter of the oil injection port, the oil being injected toward the piston from the oil injection port, wherein: the filter is removably mounted on the outer surface of the outer wall portion of the main body existing upstream on the oil flow passage; and the main body is mounted on the internal combustion engine in a state where at least a portion of the filter is inserted into the oil path.