Supplemental Cover Structure for Vented Cap Water Protection
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Solution Overview
Problem
During washing procedures, water can penetrate vented caps of machines, such as light utility helicopter transmission fluid caps, leading to water mixing with operating fluids, which reduces lubricity and potentially causes transmission failure.
Innovation Solution
A supplemental cover with a mounting portion featuring a sealing lip and beveled tabs for secure attachment, and an upper portion with a downward-sloping runoff and handles for easy installation and removal, designed to deflect water away from the vented cap, preventing infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vented cap is used to allow fluid venting, then the transmission system can breathe and equalize pressure, but water can infiltrate through the vent during washing procedures
Solution Approach 1:
The cap assembly is segmented into two functional parts: the original vented cap that handles pressure equalization and fluid venting, and the supplemental cover that provides water protection. The supplemental cover is further segmented into a mounting portion with sealing lips and tabs, and an upper portion with runoff surface and handles, allowing each segment to perform its specific function independently.
Solution Approach 2:
The supplemental cover acts as an intermediary component between the external environment (water during washing) and the vented cap (which allows water infiltration). It provides a protective interface that blocks water while allowing the vented cap to maintain its pressure equalization function through the recess that receives the vent.
2Reliability
If the supplemental cover is designed with secure mounting features, then water protection is improved, but installation and removal becomes more complex
Solution Approach 1:
The mounting mechanism uses elastic deformation dynamics. The mounting portion is designed to be slightly flexible, allowing it to be compressed during installation and then spring back to engage with the vented cap. The beveled tabs utilize elastic deflection to snap into place on the vented cap rim, providing secure mounting while maintaining ease of installation and removal through simple manual manipulation.
3Object-affected harmful factors
If the sealing lip is designed to fit tightly around the vented cap rim, then water infiltration is prevented, but manufacturing precision requirements increase
Solution Approach 1:
The sealing mechanism utilizes parameter changes through elastic deformation. The mounting portion and sealing lip are designed with appropriate material selection and cross-sectional geometry to allow elastic deflection during installation. This enables the sealing lip to conform to variations in the vented cap rim dimensions without requiring extremely tight manufacturing tolerances, while still achieving effective water sealing when properly installed.
Solution Approach 2:
The beveled tabs feature asymmetric geometry with beveled surfaces that facilitate one-way engagement. The bevels are oriented to guide the mounting portion onto the vented cap during installation, with the asymmetric shape providing mechanical interlocking that secures the supplemental cover while accommodating normal manufacturing variations in the vented cap rim dimensions.
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
Effectively prevents water infiltration during washing, maintaining the effectiveness of the operating fluid and reducing the risk of transmission failure by directing water flow away from the cap.
Implementation Method 1
an upper portion with a downward-sloping runoff which dispels most of the water from the vented cap
Data Source
AI summary
The present disclosure provides a supplemental cover to protect a vented cap against water infiltration. The supplemental cover includes a mounting portion and an upper portion. The mounting portion has a sealing lip that fits around the rim of the vented cap and beveled tabs protruding from the sealing lip which act to hold the supplemental cover in place. The upper portion has a top plate encompassed by a downward sloping runoff, which directs water away from the vented cap. The upper portion also includes a plurality of handles that protrude outwards from the runoff. The upper portion is configured to cover the vented cap when the mounting portion releasably attaches the supplemental cover to the vented cap such that the supplemental cover inhibits water from penetrating the vented cap.