Motorcycle Oil Filter Layout Below Engine
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Solution Overview
Problem
The existing layout of an oil filter in internal combustion engines for motorcycles interferes with the exhaust pipe and reduces the oil pan's storage capacity, affecting the motorcycle's ability to navigate steps and maintain a desired bank angle.
Innovation Solution
The oil filter is positioned below the internal combustion engine, overlapping with the oil pan and housed in a recess of the crankcase, allowing the exhaust pipe to be closely aligned with the oil pan's side wall, thus preventing interference and maintaining the oil pan's capacity and the motorcycle's ground clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the oil filter is disposed in a cavity defined in the side wall of the oil pan, then the oil filter does not project along the transverse direction of the vehicle, but the oil pan's storage capacity is reduced and the bottom of the oil pan must be lowered
Solution Approach 1:
The oil filter is repositioned from a transverse arrangement (in the side wall cavity) to a longitudinal arrangement (below the engine overlapping the oil pan). This dimensional change allows the oil filter to utilize the vertical space below the engine rather than consuming transverse space in the oil pan, thereby resolving the contradiction between compact transverse profile and adequate oil storage capacity.
2Quantity of substance
If the bottom of the oil pan is lowered to provide desired storage capacity, then the oil pan has sufficient oil storage, but the height from ground is reduced affecting ability to run over steps and bank angle
Solution Approach 1:
The oil filter is extracted from the oil pan structure and repositioned to a separate location below the engine. This separation allows the oil pan to maintain its original height and contours without being lowered to accommodate the filter, thereby preserving the motorcycle's ground clearance and ability to navigate obstacles while the filter occupies the space below the engine.
3Quantity of substance
If the oil pan bottom is lowered, then oil storage capacity is sufficient, but the exhaust pipe interferes with the oil pan
Solution Approach 1:
By extracting the oil filter from the oil pan and repositioning it below the engine, the invention creates spatial separation between the exhaust pipe (which remains in its original position) and the oil pan. This eliminates the interference problem while maintaining adequate oil storage capacity through the repositioned filter.
Data Source
AI summary
An oil filter layout structure for an internal combustion engine for a motorcycle. An exhaust pipe connected to an exhaust port extends rearwardly beneath the internal combustion engine along a longitudinal direction of the motorcycle. An oil pan is disposed below the internal combustion engine, the oil pan having one of left and right side walls spaced along a transverse direction of the motorcycle. The one side wall is inclined downwardly toward a center of the motorcycle. The exhaust pipe is disposed closely to the side wall. An oil filter is mounted on the internal combustion engine and disposed below the internal combustion engine in overlapping relation to the oil pan as viewed in side elevation, near the other of the left and right side walls of the oil pan.