Breather Vent Assembly Tortuous Path Condensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional breather vent systems for vehicle transmissions fail to effectively manage pressure differentials and condensation of transmission fluid vapor, leading to potential fluid leaks and contamination.
Innovation Solution
A breather vent assembly with a tortuous path and reservoir system that redirects vapor and condensate back to the transmission, utilizing high and low flow rate areas to separate vapor and allow condensation, eliminating external fluid escape and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional air vent assembly is used to allow air flow into and out of the transmission housing, then pressure differentials are minimized, but transmission fluid vapor escapes and condenses on the outer surface causing perceived fluid leaks and potential fluid volume reduction
Solution Approach 1:
A tortuous path condenser is introduced as an intermediary component between the transmission housing interior and exterior. This condenser includes a series of bends and turns that force the vapor to change direction repeatedly, cooling it and causing condensation. The condensed fluid is then collected in a reservoir and drained back into the transmission, preventing fluid loss while maintaining pressure differential control.
Solution Approach 2:
The invention utilizes phase transition by designing the vent assembly to cause transmission fluid vapor to condense into liquid form through the tortuous path. The repeated bending and turning of the vapor path creates cooling effects that trigger condensation, transforming the vapor phase into liquid phase, which is then collected and returned to the transmission system.
2Device complexity
If a simple vent passage is used, then device complexity is low, but harmful factors such as fluid vapor escape and external contamination occur
Solution Approach 1:
The tortuous path condenser acts as an intermediary that processes the vapor before it exits the transmission housing. By forcing the vapor through a complex series of bends and turns, the system condenses the vapor and collects the condensed fluid in a reservoir, preventing both fluid escape and external contamination while maintaining a relatively simple overall assembly structure.
Solution Approach 2:
The invention converts the harmful effect of vapor escape into a beneficial process by using the tortuous path to induce condensation. The vapor that would otherwise escape and cause contamination is instead forced through a cooling path where it condenses into liquid, which is then collected and returned to the transmission, transforming a potential harm into a fluid recovery mechanism.
3Speed
If the vent assembly allows free vapor flow, then pressure equalization is efficient, but condensation occurs on the transmission housing surface creating perceived leaks
Solution Approach 1:
The tortuous path condenser serves as an intermediary that intercepts and processes the vapor before it can reach the transmission housing exterior. The series of bends and turns in the condenser create a cooling effect that causes condensation within the controlled environment of the vent assembly rather than on the housing surface, preventing the perception of leaks while maintaining pressure equalization.
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 system effectively minimizes pressure differentials and prevents fluid from escaping the transmission, ensuring internal fluid volume and cleanliness by redirecting vapor and condensate back to the transmission, thus enhancing the reliability and longevity of the transmission.
Implementation Method 1
A tortuous path is defined between the vent main body and the cap such that a fluid vapor from the transmission is configured to flow through the internal vent passage and subsequently through the tortuous path to thereby vent the fluid vapor from the transmission
Implementation Method 2
A reservoir is defined between the distal end and the upwardly extending retainer portion, the reservoir in fluid communication with the tortuous path and configured to receive a condensate when a portion of the fluid vapor condenses in the tortuous path
Implementation Method 3
A drain passage extends through the vent main body and fluidly couples the reservoir and the internal vent passage such that the condensate in the reservoir is drained back to the vehicle transmission
Data Source
AI summary
A breather vent assembly includes a vent main body defining an internal vent passage and including a proximal end, a distal end, and an upwardly extending retainer portion disposed outward of the distal end. A cap is coupled to the vent main body and disposed at the distal end. A tortuous path is defined between the vent main body and the cap and a fluid vapor flows through the internal vent passage and the tortuous path to thereby vent the fluid vapor from a transmission. A reservoir is defined between the distal end and the upwardly extending retainer portion and configured to receive a condensate when a portion of the fluid vapor condenses in the tortuous path. A drain passage extends through the vent main body and fluidly couples the reservoir and the internal vent passage such that the condensate in the reservoir is drained back to the vehicle transmission.