Engine Damper Cooling Using the Cab A/C Refrigerant Circuit
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Solution Overview
Problem
Existing engine damper designs face challenges in maintaining optimal operating temperatures, especially under conditions of low air flow, where heat dissipation is hindered, leading to excessive heat exposure and potential damage.
Innovation Solution
An engine damper cooling system that utilizes a temperature control system comprising a condenser, radiator, and tubes with refrigerant flowing through them, where the refrigerant is converted from gas to liquid and routed between air flow and the engine damper, facilitating convective cooling to maintain the viscous fluid and elastomeric material at acceptable temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the engine damper relies on natural air flow for cooling, then the system complexity is low, but the damper temperature becomes excessive under low air flow conditions
Solution Approach 1:
The patent combines the damper cooling function with the existing cab air conditioning system by routing the A/C system's air flow through the damper housing. This merges two functions (cab cooling and damper cooling) into a single integrated system, reducing overall system complexity while effectively cooling the damper under all operating conditions.
Solution Approach 2:
The patent makes the A/C system serve multiple functions: it cools both the cab and the damper. By using the same air conditioning system to provide cooling air to the damper, the system achieves multi-functionality without adding dedicated cooling components for the damper.
2Temperature
If dedicated damper cooling components are added, then the damper temperature is controlled effectively, but the system complexity and cost increase
Solution Approach 1:
The patent combines the damper cooling function with the existing cab air conditioning system by routing the A/C system's air flow through the damper housing. This merges two functions (cab cooling and damper cooling) into a single integrated system, reducing overall system complexity while effectively cooling the damper under all operating conditions.
Solution Approach 2:
The damper cooling is achieved using the A/C system's own air flow without requiring additional dedicated cooling components. The system serves itself by utilizing its existing air flow to cool the damper, eliminating the need for separate cooling systems.
3Adaptability or versatility
If the A/C system air flow is used for damper cooling, then the damper is effectively cooled without additional components, but the A/C system must be designed to accommodate this dual function
Solution Approach 1:
The patent makes the A/C system serve multiple functions: it cools both the cab and the damper. By using the same air conditioning system to provide cooling air to the damper, the system achieves multi-functionality without adding dedicated cooling components for the damper.
Solution Approach 2:
The patent utilizes the spatial dimension by routing the A/C air flow through the damper housing structure. The cooling air is directed through passages in the damper housing, effectively using the existing structural space for dual cooling purposes without adding complex external components.
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
Effectively reduces operating temperatures of the engine damper, ensuring efficient operation and prolonging the life of the damper, even in low air flow conditions, by using convective cooling to dissipate heat effectively.
Implementation Method 1
converting a gas to a liquid
Implementation Method 2
cooling the air temperature around the engine damper... by passing the liquid through a tube portion located between air flow (e.g., from one or more fans) and the engine damper
Data Source
Figure 1
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AI summary
In one embodiment, a method (36) for cooling an engine damper, comprising: converting a gas to a liquid (38); and cooling an engine damper by passing the liquid through a tube portion located between fan air flow and the engine damper (40).