Engine Cooling System with Flow Control Inserts
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Solution Overview
Problem
Current engine cooling systems face challenges in reducing warm-up time and improving cooling efficiency, particularly due to viscosity changes in oil and coolant temperatures, which affect engine performance and fuel consumption, and can lead to knocking and decreased lubrication effectiveness.
Innovation Solution
The engine cooling system employs a coolant control valve unit at the rear side of the cylinder head and a block coolant chamber with inserts to adjust coolant flow, utilizing a cylinder head gasket with main and auxiliary passages to efficiently direct coolant between the cylinder block and head coolant chambers, allowing for precise control of coolant flow and temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coolant temperature is increased to reduce oil viscosity and improve lubrication, then lubrication function is improved, but engine overheating and knocking may occur
Solution Approach 1:
The patent applies local quality by inserting temperature control inserts at specific locations within the coolant passage. These inserts create localized thermal zones that selectively heat or cool coolant in specific regions, allowing different parts of the engine to receive coolant at optimally different temperatures for their specific functional requirements
Solution Approach 2:
The coolant passage is segmented into multiple zones using removable inserts that divide the single coolant flow into separate controllable streams. This segmentation allows independent temperature management for different engine components, enabling simultaneous optimization of lubrication (warmer coolant) and prevention of overheating (cooler coolant) in different regions
2Temperature
If coolant flow is increased to improve cooling efficiency, then cooling performance is improved, but warm-up time increases and fuel consumption increases
Solution Approach 1:
The patent employs dynamically adjustable temperature control inserts that can be positioned at different locations within the coolant passage based on real-time engine operating conditions. This dynamic repositioning allows the system to optimize coolant flow distribution, increasing flow to areas needing cooling while maintaining adequate flow for warm-up periods, thereby reducing both warm-up time and improving cooling efficiency as needed
Solution Approach 2:
The system implements periodic adjustment of insert positions to match the cyclical nature of engine operating conditions. During cold start phases, inserts are positioned to maximize warm-up efficiency; during high-load phases, they reposition to enhance cooling. This periodic reconfiguration optimizes the balance between warm-up time and cooling efficiency across different operational cycles
3Device complexity
If one coolant control valve unit controls all coolant flow, then device complexity is reduced, but temperature control precision in specific regions deteriorates
Solution Approach 1:
The patent introduces temperature control inserts as intermediary devices within the coolant passage. These inserts act as passive flow modifiers that create localized thermal zones without requiring additional active control valves. By using these intermediary structures, the system maintains simple valve architecture while achieving precise regional temperature control through the inserts' positioning and geometry
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 solution reduces warm-up time and enhances cooling efficiency by optimizing coolant flow, preventing knocking, and maintaining optimal lubrication viscosity, thereby improving engine performance and user comfort.
Implementation Method 1
coolant circulates an engine, a heater and a radiator to absorb the heat energy
Implementation Method 2
coolant circulates an engine, a heater and a radiator to absorb the heat energy
Implementation Method 3
coolant circulates an engine, a heater and a radiator to absorb the heat energy so that the engine exhausts the absorbed coolant to the outside
Implementation Method 4
coolant circulates an engine, a heater and a radiator to absorb the heat energy so that the engine exhausts the absorbed coolant to the outside
Data Source
AI summary
An engine cooling system is provided. The system includes a cylinder block formed that has a block coolant chamber formed therein and a front insert that is inserted downward of an upper portion of a front side and receives coolant in the block coolant chamber to adjust a flow of the coolant. Additionally, a rear insert is inserted downward of an upper portion of a rear side and exhausts the coolant in the block coolant chamber to adjust the flow of the coolant.