Oil Pump Priming Coupling for Dry-Start Lubrication
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Solution Overview
Problem
Existing methods for priming fluid pumps in internal combustion engines are either costly or limited to specific engine types, posing a risk of component wear and failure due to dry starts without proper lubrication.
Innovation Solution
A coupling member with a cylindrical length and radially protruding fins is used to translate rotational force from a drive shaft to the oil drive gear, allowing for efficient priming of the fluid pump's suction and pressure sides, compatible with various engine types including General Motors LS and Chrysler Hemi engines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressurized oil tank system is used to prime the fluid pump, then the priming function is achieved, but the device complexity and cost increase significantly
Solution Approach 1:
The invention extracts the essential priming function from the complex pressurized oil tank system. By using a simple coupling tool that connects to the oil pump drive shaft, only the necessary mechanical connection is retained, while removing the unnecessary pressurized tank component. This achieves priming through direct mechanical drive of the oil pump.
Solution Approach 2:
The coupling tool acts as an intermediary device between the external rotational drive (hand-held drill) and the oil pump drive shaft. This intermediary transfers rotational force to prime the oil pump without requiring a complex pressurized oil tank system, simplifying the overall priming mechanism.
2Device complexity
If a coupling tool connectable to a hand-held drill is used, then the priming function is achieved with reduced complexity, but the adaptability to different engine types is limited
Solution Approach 1:
The coupling tool is designed with universal adaptability to work with multiple engine types including Chevrolet V6, V8, and other configurations. The tool can accommodate different drive shaft sizes and configurations through adjustable coupling mechanisms, allowing a single tool design to serve multiple priming applications across various engine platforms.
3Reliability
If conventional priming methods are used, then priming is achieved, but the risk of component wear and failure due to dry starts increases
Solution Approach 1:
The invention performs preliminary priming action before engine operation begins. By using the coupling tool to rotate the oil pump drive shaft and circulate oil through the system prior to starting the engine, adequate lubrication is established in advance, preventing dry start conditions and subsequent component wear.
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 solution provides an economical and versatile method for priming fluid pumps, reducing the risk of component wear and failure by ensuring proper lubrication across multiple engine types, enhancing engine reliability and longevity.
Implementation Method 1
The coupling member is configured to translate a rotational force provided by the rotational drive to the oil drive gear of the internal combustion engine
Implementation Method 2
a plurality of fins extending along at least a portion of the cylindrical length, the plurality of fins configured to engage an oil drive gear of an internal combustion engine
Data Source
AI summary
A coupling member for use in priming a fluid pump of an internal combustion engine, the coupling member including a first end, a second end, and a cylindrical length therebetween. The first end of the coupling member may be configured to axially engage a drive shaft of a rotational drive, a plurality of fins may extend along at least a portion of the cylindrical length, and the plurality of fins may be configured to engage an oil drive gear of an internal combustion engine. Each fin from the plurality of fins may protrude radially from an outer surface of the coupling member, and the coupling member may be further configured to translate a rotational force provided by the rotational drive to the oil drive gear of the internal combustion engine.