Rotating Gate Cylinder Gas Flow Control
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Solution Overview
Problem
Existing engine systems face challenges in deactivating cylinders without complexifying the intake system, as introducing partitions in the manifold disrupts gas supply and increases costs and reliability risks, and feeding deactivated cylinders with exhaust gases is not flexible or reliable.
Innovation Solution
A device with a conduit and flow control means that allows selective feeding of admission gases or re-circulated exhaust gases to individual cylinders, using a rotating gate to control gas flow without modifying the intake manifold design, ensuring reliable and flexible deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If partitions are introduced in the intake manifold to enable selective cylinder feeding, then cylinder deactivation capability is improved, but device complexity and manufacturing costs increase significantly
Solution Approach 1:
The patent applies segmentation by dividing the intake system into individual cylinder-specific conduits rather than using a single partitioned manifold. Each cylinder receives its own dedicated conduit with independent flow control, eliminating the need for complex manifold partitions while enabling selective cylinder feeding and deactivation capability.
2Adaptability or versatility
If partitions are introduced in the intake manifold to enable selective cylinder feeding, then cylinder deactivation capability is improved, but reliability risks increase due to system complexity
Solution Approach 1:
The patent improves reliability by segmenting the intake system into independent cylinder-specific conduits. This segmentation isolates potential failure points to individual cylinders rather than affecting the entire manifold system, allowing other cylinders to continue operating normally even if one conduit experiences issues.
3Adaptability or versatility
If the intake manifold design is modified to enable selective cylinder feeding, then cylinder deactivation capability is improved, but manufacturing costs increase
Solution Approach 1:
The patent reduces manufacturing costs by avoiding complex manifold partitions and instead using simpler, modular cylinder-specific conduits. This segmentation approach allows for standardized, easier-to-manufacture components that can be assembled independently, reducing overall manufacturing complexity and cost compared to integrated manifold modifications.
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
Enables fine control of gas admission to cylinders, minimizing pressure drops and maintaining engine efficiency by allowing flexible control of gas flow without altering the intake manifold design, thus reducing costs and reliability risks.
Implementation Method 1
a flow control means controllable between a first position in which said conduit feeds the cylinder with admission gases and a second position in which said conduit feeds the cylinder with re-circulated exhaust gases
Data Source
AI summary
The invention relates to a device for admitting inlet gases and/or recirculated exhaust gases into an internal combustion engine cylinder, the device comprising a duct designed to supply said cylinder with inlet gases and/or with recirculated exhaust gases, characterized in that said device further comprises, in the duct, a flow control means that can be operated between a first position in which said duct supplies the cylinder with the inlet gases and a second position in which said duct supplies the cylinder with the recirculated exhaust gases. It also relates to the intake module and to the engine equipped therewith.