Spherical Flow Vent Structure for Water-Resistant Powertrain Breathing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vent devices for vehicle powertrain components face challenges such as increased internal pressures due to operating conditions, water intrusion issues, and inefficiencies in ventilation, particularly in hoseless designs with membranes or flexible elements.
Innovation Solution
A vent device comprising a body with a spherical flow element and a cap, made of plastic materials, that is threaded onto the housing, featuring a symmetrically arranged plurality of passages to enhance ventilation and prevent backflow while resisting water intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a membrane or flexible element is used in a hoseless vent design, then the device complexity is reduced, but water intrusion resistance deteriorates
Solution Approach 1:
The patent removes the membrane/flexible element from the vent device structure, extracting the component that caused water intrusion issues while maintaining the hoseless design simplicity. The vent body directly connects to the housing without intermediate flexible elements that could compromise water resistance.
Solution Approach 2:
The vent device utilizes plastic materials with specific properties to achieve both simplicity and water resistance. The combination of plastic vent body, spherical flow element, and cap creates a composite structure that maintains functionality without requiring membranes or flexible elements.
2Productivity
If a spherical flow element with multiple passages is used, then ventilation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent employs a spherical flow element instead of traditional linear or planar valve structures. The spherical geometry with multiple passages provides superior ventilation efficiency by allowing gas flow through multiple pathways simultaneously, while the spherical shape itself is a single integrated component that simplifies manufacturing compared to assembling multiple parts.
Solution Approach 2:
The spherical flow element combines multiple functions into a single component: it serves as both the flow control element and the structural connector between the vent body and cap. The multiple passages are integrated within the sphere rather than being separate channels, reducing overall device complexity while maintaining ventilation efficiency.
3Ease of manufacture
If plastic materials are used instead of metal, then ease of manufacture is improved, but strength deteriorates
Solution Approach 1:
The patent utilizes plastic materials for the vent body, flow element, and cap, taking advantage of their ease of manufacturing through injection molding. The plastic material is selected and designed to provide sufficient strength for the threaded connection to the transmission housing, eliminating the need for metal components while maintaining adequate mechanical strength through proper material selection and thread design.
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 vent device effectively maintains threshold pressure and enhances ventilation by directing gases to ambient atmosphere, improving installation and operation, while preventing lubricant leakage and enhancing durability.
Implementation Method 1
a spherical flow element is arranged in the body adjacent to a cap through which gas flows
Implementation Method 2
The vent device may be threaded onto the housing via a portion of the body
Data Source
AI summary
Methods and systems are provided for a vent device. In one example, a system includes a vent device including a body that extends through a housing, wherein a spherical flow element is arranged in the body adjacent to a cap through which gases flow. The cap includes openings between it and the body that allow gases to vent to an ambient atmosphere.