Simultaneous Cylinder Wall Coating with Thermal Management
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Solution Overview
Problem
Existing methods for coating cylinder walls in internal combustion engines are inefficient, requiring long processing times and leading to inhomogeneous stress distribution and reduced service life due to sequential coating of multiple cylinders.
Innovation Solution
A device with multiple coating devices actuated by a common drive system, allowing simultaneous coating of all cylinders, along with a cooling device to manage heat absorption and prevent thermal deformations, using a belt or gear drive mechanism for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sequential coating method is used for multiple cylinders, then device complexity and costs are kept low, but processing time becomes relatively long
Solution Approach 1:
The patent combines multiple coating devices into a single integrated system that can coat multiple cylinders simultaneously. The coating installation includes multiple spray lances arranged to coat different cylinders at the same time, merging separate coating operations into one coordinated process, thereby reducing total processing time while maintaining reasonable device complexity through shared control and coordination mechanisms.
Solution Approach 2:
The coating system is segmented into multiple independent coating devices, each capable of coating one cylinder. These segmented devices work in parallel on different cylinders simultaneously, allowing the system to maintain modularity and manageable complexity while achieving high productivity through concurrent operations.
2Device complexity
If sequential coating method is used for multiple cylinders, then equipment costs are reduced, but service life and stress distribution become inhomogeneous
Solution Approach 1:
By merging multiple coating operations into a simultaneous process, the engine block experiences more uniform thermal loading across all cylinders. This uniform heating and cooling prevents inhomogeneous stress distribution that would occur with sequential coating, thereby improving the reliability and service life of the engine block while keeping the device complexity manageable through coordinated control.
3Productivity
If simultaneous coating of all cylinders is implemented, then processing time is significantly reduced, but device complexity and costs increase
Solution Approach 1:
The system segments the coating function into multiple specialized spray lances, each optimized for coating one cylinder. This segmentation allows parallel processing that dramatically reduces total coating time while keeping each individual device relatively simple and manageable, balancing productivity gains against device complexity.
Solution Approach 2:
The coating system incorporates universal components and coordinated control mechanisms that allow multiple specialized spray lances to work together as an integrated system. This multi-functionality enables simultaneous coating of multiple cylinders while using shared control systems and coordination protocols, reducing the overall complexity compared to having completely independent coating systems for each cylinder.
4Stability of the object's composition
If simultaneous coating of all cylinders is implemented, then heat absorption becomes more even, but device complexity increases
Solution Approach 1:
The patent merges multiple coating operations into a simultaneous process that applies uniform thermal loading to all cylinders. This coordinated approach ensures even heat absorption and uniform stress distribution across the engine block, while the merging of control systems and coordination mechanisms keeps the overall device complexity manageable through integrated design.
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
Significantly reduces processing time, achieves a more even heat absorption and stress distribution within the engine block, enhancing the service life and processing efficiency by ensuring all cylinders are coated at the same temperature level.
Implementation Method 1
a cooling device (6, 7) for cooling an engine block (2) of the internal combustion engine forming the cylinders. The cooling device (6, 7) may apply a cooling fluid to the engine block (2)... the cooling plate (7) may also include cooling channels for a cooling fluid
Implementation Method 2
thermal coating methods, in which the coating material is melted and then—usually by means of a compressed air or other gas flow—atomized and transported onto the surface which is to be coated
Implementation Method 3
the coating material is melted and then—usually by means of a compressed air or other gas flow—atomized and transported onto the surface
Data Source
AI summary
A device for coating cylinder walls of an internal combustion engine forming a plurality of cylinders. A coating device is provided for each cylinder, the coating devices are controlled in such a way that the cylinder walls of all the cylinders are coated simultaneously.