Vehicle Radiator Bubble Separation Inlet Tank
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Solution Overview
Problem
Conventional radiators experience reduced cooling efficiency due to bubbles in the coolant, leading to lower heat transfer coefficients and deteriorated cooling performance, which can result in inadequate engine cooling.
Innovation Solution
A radiator design that incorporates a bubble separating unit with a spiral groove inflow port and filler neck to separate bubbles from the coolant, allowing the bubble-free coolant to pass through a heat-exchanging portion for improved cooling efficiency, while exhausting the bubbles to a reserve tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coolant with bubbles flows through the radiator, then the radiator structure remains simple, but cooling efficiency deteriorates due to reduced heat transfer coefficient
Solution Approach 1:
The bubble separating unit is installed at the inlet tank to separate bubbles from the coolant before the coolant enters the heat-exchanging tubes. This preliminary separation action prevents bubbles from entering the cooling system, maintaining high heat transfer efficiency without requiring complex modifications to the existing radiator structure.
Solution Approach 2:
The bubble separating unit acts as an intermediary device between the coolant source and the radiator. It introduces a new component that performs the function of bubble removal, thereby protecting the existing radiator structure while improving cooling efficiency through the addition of this intermediate separation stage.
2Productivity
If bubbles are present in the coolant, then the coolant circulation system remains simple, but flow resistance increases and cooling performance deteriorates
Solution Approach 1:
The bubble separating unit performs preliminary bubble removal at the inlet tank before coolant circulation. By separating bubbles in advance, the system maintains low flow resistance and high cooling performance without requiring complex bubble removal mechanisms throughout the entire circulation system.
Solution Approach 2:
The bubble separating unit utilizes the natural buoyancy of bubbles and the geometry of the inlet tank to achieve automatic bubble separation. The design allows bubbles to rise and be discharged through a separate outlet without requiring external power sources or complex mechanical components, enabling the system to self-regulate coolant quality.
3Reliability
If the radiator processes coolant with bubbles, then manufacturing cost remains low, but heat exchanging performance deteriorates
Solution Approach 1:
The bubble separating unit is integrated into the inlet tank structure to perform preliminary bubble separation before coolant enters the heat-exchanging portion. This approach improves heat exchanging performance by removing bubbles in advance while keeping the bubble separation mechanism simple and cost-effective through integration with the existing tank structure.
Solution Approach 2:
The bubble separating unit is merged with the inlet tank structure, combining the functions of coolant reception and bubble separation in a single integrated component. This merging reduces the need for separate complex bubble separation devices, maintaining manufacturing cost effectiveness while improving heat exchanging performance.
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
This design reduces flow resistance, enhances cooling efficiency, improves engine cooling performance, and allows for a smaller radiator size with reduced manufacturing costs and improved engine compartment space utilization.
Implementation Method 1
a bubble generating portion formed at the inflow port and rotating the coolant to generate a whirlpool so as to separate the bubble from the coolant
Implementation Method 2
a heat-exchanging portion fluidly connected to the inlet tank and provided with a plurality of tubes and radiation fins so as to cool the coolant flowing in the tubes by exchanging heat with air
Data Source
AI summary
A radiator apparatus for a vehicle may include an inlet tank receiving coolant from an engine, a heat-exchanging portion fluidly connected to the inlet tank and provided with a plurality of tubes and radiation fins so as to cool the coolant flowing in the tubes by exchanging heat with air, and an outlet tank disposed apart from the inlet tank and fluid-connected to the heat-exchanging portion, wherein the outlet tank receives the coolant from the heat-exchanging portion and discharges the coolant back to the engine, a bubble separating unit mounted on a connecting hose supplying the coolant from the engine to the inlet tank, wherein the bubble separating unit separates bubble contained in the coolant and supplies the coolant from which the bubble may be separated to the inlet tank so as for the coolant to pass through the heat-exchanging portion.