Charge Air Cooler Heat Exchange for Fluid Warming
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Solution Overview
Problem
Existing vehicle systems face challenges in quickly warming up working fluids in transmission devices and engines after ignition, especially in cold climates, which affects viscosity and operational efficiency.
Innovation Solution
A charge air cooling system that includes a charge air cooler with a shell and inner tube configuration, allowing for heat exchange between compressed charge air and working fluids from the transmission device or engine, thereby cooling the charge air and warming the working fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If working fluid is used in transmission device in cold climate, then viscosity increases and operational efficiency decreases, but adding heating systems increases device complexity
Solution Approach 1:
The patent merges the charge air cooling function with the working fluid heating function into a single heat exchanger unit. The charge air cooler serves dual purposes: cooling compressed charge air while simultaneously heating the working fluid in the transmission device, eliminating the need for separate heating systems and reducing overall device complexity.
Solution Approach 2:
The charge air cooler is designed as a multi-functional component that performs both charge air cooling and working fluid heating operations. This universal component replaces what would traditionally require separate systems, thereby improving reliability without proportionally increasing device complexity.
2Speed
If separate heating systems are added to warm working fluid, then warming efficiency improves, but device complexity and space requirements increase
Solution Approach 1:
The heating function is merged into the existing charge air cooler structure. The heat exchanger uses the thermal energy from compressed charge air to warm the working fluid, achieving rapid warming without requiring additional space for separate heating equipment.
Solution Approach 2:
The charge air acts as an intermediary thermal medium, transferring heat from the compressor to the working fluid through the heat exchanger. This intermediary approach enables efficient heat transfer and rapid warming of the working fluid without direct heating components.
3Productivity
If charge air cooling is implemented, then charge air temperature decreases and engine efficiency improves, but working fluid remains cold in starting state
Solution Approach 1:
The heat exchanger introduces the working fluid as an intermediary substance that absorbs thermal energy from the compressed charge air. This allows the charge air to be cooled for improved engine efficiency while simultaneously warming the working fluid to appropriate operating temperatures.
Solution Approach 2:
The system changes the temperature parameters of both charge air and working fluid through controlled heat exchange. The charge air temperature is reduced to improve density and engine efficiency, while the working fluid temperature is increased to reduce viscosity and improve transmission 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 configuration effectively reduces the viscosity of working fluids in transmission devices and engines, ensuring smooth operation and efficient heat management, even in cold conditions.
Implementation Method 1
The inner tube is configured to draw working fluid from a transmission device of the vehicle or working fluid from an engine and to conduct heat exchange between charge air, which flows through the interior of the shell, and working fluid
Implementation Method 2
conduct heat exchange between charge air, which flows through the interior of the shell, and working fluid
Data Source
AI summary
A charge air cooler cools charge air compressed with a compressor. The charge air cooler includes a shell and an inner tube, which is accommodated in the shell and exposed to an interior of the shell. The shell has an inlet and an inlet to enable charge air to flow through the inlet, the interior of the shell, and the inlet and to pass around the inner tube in the shell. The inner tube is configured to draw working fluid from a transmission device of the vehicle or an engine and to conduct heat exchange between charge air, which flows through the interior of the shell, and working fluid to warm working fluid.