Fracture Split Cylinder Head Block Monoblock
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Solution Overview
Problem
Existing methods for producing a sub-assembly of a cylinder head and cylinder block in internal combustion engines are prone to engine degradation, particularly due to the vulnerability of the cylinder head seal in the connection region.
Innovation Solution
A method involving the formation of a monoblock with an integral cylinder head and cylinder block, which is then separated into two components with complementary fracture faces, and connected in a fluid-tight manner using a sealing material, eliminating the need for a separate cylinder head seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cylinder head seal is used to seal the connection region between cylinder head and cylinder block, then sealing of gases, water and oil is achieved, but the seal is prone to degradation causing engine degradation
Solution Approach 1:
The invention extracts and eliminates the cylinder head seal component from the engine assembly by creating a fluid-tight integral connection between the cylinder head and cylinder block through fracture splitting, thereby removing the source of seal degradation and improving long-term reliability
Solution Approach 2:
The invention merges the cylinder head and cylinder block into a single integral structure through fracture splitting and fluid-tight connection, eliminating the need for a separate seal component and creating a more durable unified assembly
2Ease of manufacture
If the cylinder head and cylinder block are produced separately using complex machining methods and mounted with screws, then production flexibility is maintained, but the connection region becomes vulnerable to degradation
Solution Approach 1:
The invention combines separate production of cylinder head and cylinder block with fracture splitting to create complementary fracture faces that join integrally, maintaining production flexibility while achieving a durable degradation-free connection
Solution Approach 2:
The invention segments the monoblock into cylinder head and cylinder block components through fracture splitting at predetermined locations, allowing separate production and assembly while maintaining integral connection properties
3Reliability
If a monoblock is formed with cylinder head and cylinder block integrally connected and then separated into two components, then fluid-tight connection is achieved, but additional separation steps are required
Solution Approach 1:
The invention performs preliminary monoblock formation with integrated cylinder head and cylinder block, then separates them through fracture splitting to achieve fluid-tight connection, where the preliminary integral formation ensures connection reliability
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 approach enhances the durability of the engine by preventing fluid leaks and reducing production costs, as the connection is both sealed and stress-free, allowing for improved force transmission and easier maintenance.
Implementation Method 1
separating the monoblock into two components of the sub-assembly, wherein a first component has the cylinder head and a second component has the cylinder block
Data Source
AI summary
Methods and systems are provided for a sub-assembly. In one example, a method for the subassembly includes separating a monoblock of the subassembly into two separate portions and applying a sealing material to at least one of the two separate portions and rejoining the portions.