Internal combustion engine for a motor vehicle, and motor vehicle
Direct bonding of the crankcase and cylinder head with adhesive and optional intermediate elements addresses the issue of relative movements, enhancing engine robustness and durability by preventing leaks and cracks, allowing for efficient engine operation.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MERCEDES BENZ GROUP AG
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-18
AI Technical Summary
Conventional internal combustion engines experience relative movements and deformations between the crankcase and cylinder head, leading to gas leaks and cracking due to high load, temperature fluctuations, and frequent cold starts, which compromise engine robustness.
The crankcase and cylinder head are directly bonded using an adhesive without a cylinder head gasket, supplemented by screws and dowel pins to secure the connection, and optionally an intermediate element with dual adhesive layers for additional elasticity.
This configuration enhances engine robustness by preventing undesirable movements, reducing gas leaks, and allowing for smaller, lower-strength bolts, while maintaining a strong and gas-tight connection, thus supporting high power output and durability.
Smart Images
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