Flywheel Housing Recess Structure for Compact Engine Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing flywheel housings increase the overall size of the engine when enlarged, and reducing their size leads to decreased workability during assembly and testing due to reduced spacing between the flywheel housing and the flywheel.
Innovation Solution
The flywheel housing is designed with a main body portion that houses the flywheel and a cover portion with a recessed portion on its opposing surface, creating a gap between the cover and the flywheel, which enhances workability and allows for space-saving without compromising engine size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the size of the flywheel housing is increased, then the spacing between the flywheel housing and the flywheel increases, but the overall size of the engine increases
Solution Approach 1:
The patent introduces a recessed portion that creates a gap between the cover portion and the flywheel, effectively utilizing the radial dimension to improve workability without increasing the axial length of the flywheel housing. This dimensional approach allows workers to access the flywheel periphery through the opening portion while maintaining a compact overall engine size.
2Volume of moving object
If the size of the flywheel housing is reduced, then the overall size of the engine is reduced, but the spacing between the flywheel housing and the flywheel decreases, reducing workability
Solution Approach 1:
The recessed portion is strategically positioned at the periphery of the opening portion to create a localized gap that provides adequate working space for assembly and testing operations. This local modification allows the flywheel housing to maintain a reduced overall size while ensuring sufficient clearance at the critical access points where workability is needed.
3Ease of operation
If the opening portion inner diameter is increased to improve access, then the cover portion structure is weakened, but increasing it further increases engine size
Solution Approach 1:
The cover portion is segmented into multiple functional zones: the opening portion for access, the recessed portion for creating working gap, and the rib structures for reinforcement. This segmentation allows the opening portion to have sufficient inner diameter for access while the rib structures compensate for the structural weakening by providing localized reinforcement without requiring an increase in overall cover thickness.
Data Source
AI summary
A flywheel housing 100 includes: a main body portion 110 which is arranged on a side of an engine 1 of a flywheel 20 and which has a housing portion 111 that houses the flywheel 20; and a cover portion 120 which is arranged on an opposite side of the flywheel 20 to the engine 1, and which is connected to the main body portion 110, and moreover which has an opening portion 125 with an inner diameter that is smaller than an outer diameter of the flywheel 20, wherein the cover portion 120 is provided with a recessed portion 123 that is recessed in a direction of separation from the flywheel 20 on an opposing surface 122b to the flywheel 20 in a peripheral portion of an edge of the opening portion 125.