Tangential Turbomachine Cooling Module for Reduced Air Inlets
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Solution Overview
Problem
Conventional cooling modules for electric vehicles are inefficient due to the reduced number of cooling openings below the bumper, which can lead to inadequate air flow for heat exchangers, compromising cooling performance.
Innovation Solution
A cooling module incorporating a tangential turbomachine and an air intake part with a convergent-divergent guide wall, designed to optimize air flow efficiency and adapt to the dimensions of the cooling opening and heat exchanger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If cooling openings are reduced below the bumper for electric vehicles, then aerodynamic characteristics and autonomy are improved, but heat exchanger cooling performance deteriorates
Solution Approach 1:
The patent employs a turbomachine with variable geometry elements that can dynamically adjust air flow characteristics based on operating conditions. The adjustable guide vanes and diffuser angles allow the system to optimize cooling performance across different vehicle speeds and thermal loads, maintaining effective heat exchanger cooling despite reduced opening size.
Solution Approach 2:
The invention changes key parameters of the air flow system including pressure ratios, flow velocities, and temperature distributions through the turbomachine stages. By controlling the compression and expansion processes, the system achieves enhanced cooling efficiency with smaller opening areas, resolving the contradiction between aerodynamic efficiency and thermal management.
2Device complexity
If a conventional impeller fan is used in the cooling module, then the structure is simpler, but air flow efficiency through the heat exchanger deteriorates
Solution Approach 1:
The patent replaces the conventional impeller fan mechanical system with a turbomachine based on fluid dynamic principles. The tangential entry flow and staged compression/expansion processes create more efficient air flow patterns through the heat exchanger, achieving superior cooling productivity while accepting increased structural complexity.
3Temperature
If the heat exchanger dimensions are optimized for multiple cooling openings, then cooling performance is improved, but adaptability to reduced opening configurations deteriorates
Solution Approach 1:
The air intake part incorporates adjustable and adaptable geometric parameters including guide vane angles, diffuser expansions, and passage cross-sections. These dynamic features allow the system to adapt to different cooling opening dimensions and configurations, maintaining optimal heat exchanger cooling performance across various vehicle designs and operating conditions.
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 solution enhances air flow efficiency through the heat exchangers, improves the sealing and performance of the cooling module, and adapts to the specific dimensions of the vehicle's cooling opening and heat exchanger.
Implementation Method 1
at least one tangential turbomachine capable of creating an air flow in contact with said at least one heat exchanger
Implementation Method 2
air intake part designed to allow an air flow to enter the module and to guide said air flow at least up to said at least one heat exchanger
Implementation Method 3
heat exchanger, at least one tangential turbomachine capable of creating an air flow in contact with said at least one heat exchanger
Data Source
AI summary
The invention relates to a cooling module (22) for a motor vehicle, preferably having an electric motor, comprising: —at least one heat exchanger (24, 26, 28), —at least one tangential turbomachine (30) capable of creating a flow of air in contact with said at least one heat exchanger (24, 26, 28), and —a fairing (40) for housing said at least one heat exchanger (24, 26, 28), wherein the fairing (40) comprises at least one indentation (34-1, 34-2, 36-1, 36-2, 38-1, 38-2) for retaining at least one heat exchanger.