Driveshaft Transaxle Cap With Corrugated Compression Sealing
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Solution Overview
Problem
Existing vehicle driveshaft assemblies lack effective protection against premature wear and corrosion, particularly at the transaxle ends, and are susceptible to contamination from external debris.
Innovation Solution
A vehicle driveshaft assembly featuring a compressible cap with a corrugated portion that transitions between non-compressed and compressed states, allowing easy installation and removal, and a conical shape with a removable design to protect the transaxle ends from contamination and facilitate seamless integration with the transaxle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective cap is provided over the transaxle end, then protection against contamination and corrosion is improved, but the cap must be easily removable after installation
Solution Approach 1:
The cap is divided into a first portion and a second portion that can separate from each other. The first portion remains on the driveshaft while the second portion is removed, providing continuous protection while enabling easy removal without damaging the driveshaft or cap
Solution Approach 2:
The cap transitions from a static protective cover to a dynamic assembly that can be easily separated. The segmented design allows the cap to adapt its configuration during installation and removal, making the removal process simple while maintaining protection during storage and installation
2Reliability
If the cap is designed to fit snugly over the transaxle end, then protection effectiveness is improved, but installation and removal become more difficult
Solution Approach 1:
By segmenting the cap into two portions that can separate, the design maintains a snug fit during storage and installation for effective sealing, while enabling easy removal by separating the portions. This resolves the contradiction between snug fit and ease of installation/removal
Solution Approach 2:
The cap is pre-configured with a segmented design that anticipates the need for both snug fit and easy removal. The separation feature is built in advance, allowing the cap to achieve both sealing effectiveness and operational ease without requiring forceful installation or removal
3Reliability
If the cap remains attached to the driveshaft after installation, then continuous protection is maintained, but the cap interferes with transaxle assembly operations
Solution Approach 1:
The segmented cap design allows the second portion to be removed after installation, eliminating interference with transaxle assembly operations. The first portion remains attached to provide continuous protection, resolving the contradiction between continuous protection and operational accessibility
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 compressible cap effectively seals and protects the driveshaft axles during installation, minimizing exposure to contaminants and ensuring a snug fit while being easily removable, thus enhancing durability and reducing wear and corrosion.
Implementation Method 1
The corrugated portion is compressible so that the cap moves between a non-compressed state and a compressed state as the transaxle end is inserted into the vehicle transaxle
Data Source
AI summary
A vehicle driveshaft assembly includes a first driveshaft axle and a first cap. The first driveshaft axle has a transaxle end for being installed to a vehicle transaxle. The first driveshaft axle having a wheel end for being installed to a first vehicle wheel. The first driveshaft axle further has a constant velocity joint disposed between the transaxle end and the wheel end. The first cap is provided over the transaxle end. The first cap has a corrugated portion that is compressible so that the first cap moves between a non-compressed state and a compressed state as the transaxle end is inserted into the vehicle transaxle.