Parallel Ventilation Line Configuration for Engine Cylinder Heads
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Solution Overview
Problem
Existing internal combustion engine venting systems face challenges with rapid ventilation, particularly when filling the cooling system for the first time, due to flow reversal issues in series-connected ventilation lines, which hinder effective air escape from individual cylinder head openings.
Innovation Solution
The implementation of a parallel ventilation line configuration, where two branches connect multiple ventilation openings in series but run independently, ensuring air flows out equally from all openings without reversal, and a third branch connects these parallel lines to the tank or environment, facilitating efficient air evacuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single series-connected ventilation line is used to connect all cylinder heads, then the device complexity is reduced, but the ventilation speed becomes insufficient due to flow reversal issues
Solution Approach 1:
The ventilation line is divided into multiple parallel branches (first branch, second branch, third branch) instead of using a single series-connected line. Each branch connects specific cylinder heads independently, allowing air to flow simultaneously through multiple paths without reversal, thereby increasing ventilation speed while maintaining manageable system complexity
Solution Approach 2:
The ventilation system transitions from a one-dimensional series connection to a multi-dimensional parallel structure. By introducing multiple branches that run in parallel and then converge, the system creates additional flow dimensions that eliminate the flow reversal problem inherent in single-series configurations
2Productivity
If a parallel ventilation line configuration is implemented to improve ventilation speed, then the ventilation efficiency increases, but the device complexity increases due to additional branches and connections
Solution Approach 1:
The first branch and second branch are merged into a common third branch that connects to the tank. This merging approach allows the system to benefit from parallel ventilation paths while reducing the number of separate components, thereby improving ventilation efficiency without proportionally increasing device complexity
Solution Approach 2:
The third branch serves multiple functions: it acts as a common outlet for both the first and second branches, provides a direct connection to the tank, and enables the parallel ventilation configuration. This multi-functionality reduces the need for additional dedicated components, balancing the increased ventilation efficiency with controlled system complexity
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 enables significantly improved and rapid ventilation of cylinder heads, ensuring all air escapes properly during initial filling, enhancing the efficiency and speed of the venting process compared to traditional series-connected systems.
Implementation Method 1
The second parallel branch of the ventilation line enables improved ventilation of the cooling system of the cylinder heads, in particular improved quick ventilation... since there is no longer a flow reversal and air flows out equally from all ventilation openings
Data Source
Figure 1a~1b
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AI summary
The present application discloses an internal combustion engine with a venting system for a plurality of components and/or areas of the internal combustion engine, comprising a vent line which connects vent openings of the plurality of components and/or areas to a tank and/or the environment, wherein the vent line has a first branch which connects at least two vent openings in series. It is further provided that the vent line has at least a second branch which is arranged parallel to the first branch in the vent line.