Cooling circuit of internal combustion engine
The cooling circuit for internal combustion engines addresses the inefficiency of conventional cooling systems by employing independent cooling paths within the cylinder head and exhaust collecting pipe, resulting in improved cooling efficiency and prevention of exhaust gas deterioration.
JP2025049742APending Publication Date: 2025-04-04MITSUBISHI MOTORS CORP
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Patent Information
- Application Number
- JP2023158114
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-22
- Publication Date
- 2025-04-04
AI Technical Summary
Technical Problem
Conventional cooling systems for exhaust collecting pipes in internal combustion engines suffer from reduced cooling efficiency when the temperature of the cooling water is high, leading to potential deterioration of exhaust gas in high-load, high-rotation operations.
Method used
The cooling circuit design includes independent first and second cooling paths in the cylinder head and exhaust collecting pipe, respectively, allowing for reduced temperature of cooling water and enhanced cooling efficiency of the exhaust gas.
Benefits of technology
This configuration effectively reduces the temperature of cooling water, improving the cooling efficiency of the exhaust gas flowing through the exhaust collecting pipe, thereby preventing deterioration in high-load conditions.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a cooling circuit in which exhaust air flowing in an exhaust collection pipe can be easily cooled.SOLUTION: A cooling circuit of an internal combustion engine has an exhaust collection pipe in which exhaust ports are arranged at a cylinder head extending in a longitudinal direction, and which is connected to the exhaust ports. The cooling structure of the internal combustion engine comprises a cylinder head cooling passage arranged at the cylinder head, and cooling a plurality of the exhaust ports, a cooling passage for cooling the exhaust collection pipe, a first cooling path for supplying cooling water to the cylinder head cooling passage, and a second cooling path arranged at a path which is different from the first cooling path, and supplying the cooling water to the cooling passage.SELECTED DRAWING: Figure 7
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