Internal Combustion Engine Cooling System with Dual Cylinder Block Jackets
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Solution Overview
Problem
Internal combustion engines face challenges in efficiently cooling all components due to complex flow paths and varying heat generation rates, leading to potential engine damage from stagnant coolant in cooling jackets.
Innovation Solution
A cooling system with dual cooling jackets in the cylinder block and a cylinder head cooling jacket, integrated with a coolant pump, heat exchanger, thermostat, and oil cooler, ensuring continuous coolant flow and temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If coolant flow path is extended to cover all heat sources, then cooling coverage is improved, but flow path complexity increases
Solution Approach 1:
The cooling system is divided into separate cooling jackets for different engine components (cylinder block, cylinder head, exhaust manifold) rather than using a single complex flow path. This segmentation allows each component to be cooled independently through dedicated passages, improving cooling coverage without requiring an overly complex integrated flow path.
2Temperature
If cooling jackets are designed for continuous flow, then cooling efficiency is improved, but risk of stagnant coolant and damage increases
Solution Approach 1:
Multiple cooling jackets (cylinder block cooling jacket, cylinder head cooling jacket, exhaust manifold cooling jacket) are merged into a single integrated cooling system with shared coolant inlet and outlet passages. This merging ensures continuous coolant circulation through all components, preventing stagnant coolant while maintaining efficient cooling across all engine parts.
3Temperature
If separate cooling systems are used for different components, then cooling precision is improved, but system complexity increases
Solution Approach 1:
A single coolant pump and integrated cooling system performs multiple cooling functions simultaneously for different engine components (cylinder block, cylinder head, exhaust manifold). The universal cooling system design eliminates the need for separate cooling systems while maintaining precise temperature control through dedicated cooling jackets for each component.
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 ensures comprehensive cooling of the engine, preventing damage from overheating by maintaining continuous coolant circulation and temperature control across all critical components.
Implementation Method 1
As the liquid circulates in the cooling jackets, it absorbs the heat from the engine
Implementation Method 2
a coolant pump fluidly communicating with the coolant inlet for pumping coolant through the cooling system
Implementation Method 3
these systems are provided with heat exchangers, such as radiators, through which the coolant is circulated to reduce the coolant temperature
Data Source
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AI summary
An internal combustion engine has a crankcase, a crankshaft, a cylinder block, at least one piston, a cylinder head assembly, and a cooling system for cooling at least a portion of the engine. The cooling system has a first cooling jacket for cooling a first side of the cylinder block, a second cooling jacket for cooling a second side of the cylinder block, and a cylinder head cooling jacket for cooling the cylinder head assembly. A coolant inlet and a coolant outlet fluidly communicate with the first and second cooling jackets respectively. Coolant flowing in the cooling system flows from the coolant inlet to the first cooling jacket, then to the cylinder head cooling jacket, then to the second cooling jacket, and finally to the coolant outlet. A cylinder block, an engine cooling system, and a method of cooling an engine are also disclosed.