Coolant Deaeration Valve With Pressure-Closed Bleed Pin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coolant system valves allow air to become trapped during servicing, which can lead to damage and inefficiency, as they do not effectively control fluid flow while allowing air to escape.
Innovation Solution
A deaeration valve with a ball and a deaeration pin that slides within a bleed passage, featuring a sealing surface and retention feature, allowing air to escape via a bleed inlet when the system is not pressurized and closing when pressurized, facilitating air removal from the coolant system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ball valve is used to control coolant flow, then fluid flow control is achieved, but air becomes trapped in the coolant system
Solution Approach 1:
The valve is segmented into multiple functional zones: a main flow control path with the ball valve, and a separate bleed passage with a deaeration pin for air removal. This segmentation allows independent control of fluid flow and air venting functions, resolving the contradiction by providing dedicated pathways for each function.
Solution Approach 2:
The deaeration pin acts as an intermediary component that selectively opens the bleed passage to allow air to escape while the ball controls the main coolant flow. This intermediary mechanism enables air removal without disrupting the primary fluid control function, resolving the air trapping issue while maintaining flow control capability.
2Object-generated harmful factors
If air is allowed to escape through a bleed passage, then air removal is achieved, but coolant may leak through the same passage
Solution Approach 1:
The deaeration pin is designed to move dynamically between closed and open positions based on system pressure conditions. During normal pressurized operation, the pin remains closed to prevent coolant leakage. When pressure drops (such as during air venting operations), the pin automatically opens to allow air escape. This dynamic positioning resolves the contradiction by adapting the bleed passage state to system conditions.
Solution Approach 2:
The system utilizes pressure parameter changes to control the deaeration pin position. When system pressure is high, the pin stays closed; when pressure drops below a threshold, the pin opens automatically. This parameter-based control mechanism ensures that air can be removed during low-pressure states while preventing coolant leakage during high-pressure operation.
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 deaeration valve effectively removes trapped air from the coolant system, preventing damage and conserving resources by ensuring air can escape, thus maintaining system efficiency and extending component lifespan.
Implementation Method 1
the deaeration pin slides into an open position by a gravitational force
Implementation Method 2
the deaeration pin slides into a closed position by a pumping force
Implementation Method 3
The sealing surface can contact the second inner surface in a closed position
Data Source
AI summary
A deaeration valve includes a housing and a ball in fluid communication with housing. The ball can include a body, a seat defining a bleed passage therein, and a deaeration pin slidably disposed within the bleed passage. Further, the deaeration pin may include a head, a retention feature, and a shaft positioned between the head and the retention feature.