Engine Damper Cooling Through the Cab A/C Refrigerant Loop
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Solution Overview
Problem
Existing engine damper designs face challenges in dissipating heat effectively, especially under conditions of low air flow, which can lead to excessive temperature exposure and reduced operational efficiency.
Innovation Solution
A method involving the conversion of gas to liquid refrigerant, which is then passed through a tube portion located between fan airflow and the engine damper, utilizing convective cooling to reduce the operating temperature of the damper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the engine damper relies on conventional air flow cooling, then the system structure remains simple, but the damper temperature becomes excessive under low air flow conditions
Solution Approach 1:
The patent merges the A/C system refrigerant circulation with the damper cooling function. The refrigerant loop that already exists for cab cooling is integrated to also cool the damper by routing refrigerant through a tube positioned between the fan airflow and the damper, combining two cooling functions into one system
Solution Approach 2:
The patent introduces a refrigerant tube as an intermediary cooling medium. The refrigerant, converted from gas to liquid in the condenser, flows through the tube positioned adjacent to the damper, acting as a thermal intermediary that transfers heat from the damper to the refrigerant, which is then carried away by the A/C system
2Loss of energy
If the engine damper operates under low air flow conditions, then fuel consumption is reduced, but the damper cannot dissipate heat effectively
Solution Approach 1:
The patent uses the pneumatic A/C refrigerant circulation system to replace reliance on natural convective air flow for damper cooling. The refrigerant is forced through the cooling tube by system pressure, ensuring consistent heat transfer from the damper regardless of external air flow conditions
Solution Approach 2:
The patent utilizes the phase transition of refrigerant from gas to liquid in the condenser. This phase change releases latent heat that is then transferred to the damper through the tube, providing efficient cooling even when ambient air flow is insufficient
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 approach effectively maintains the viscous fluid and elastomeric material at acceptable operating temperatures, even under low air flow conditions, thereby prolonging the life and ensuring efficient operation of the engine damper.
Implementation Method 1
converting a gas to a liquid
Implementation Method 2
cooling an engine damper by passing the liquid through a tube portion located between fan air flow and the engine damper
Implementation Method 3
passing the liquid through a tube portion located between fan air flow and the engine damper
Data Source
AI summary
In one embodiment, a method for cooling an engine damper, including converting a gas to a liquid, and cooling an engine damper by passing the liquid through a tube portion located between fan air flow and the engine damper.