气缸盖、发动机和车辆
By optimizing the intake port structure of the cylinder head, the problems of reduced tumble ratio and flow coefficient were solved, achieving a balance between high tumble ratio and high flow coefficient, thus improving the engine's fuel injection efficiency and performance.
CN117307349BActive Publication Date: 2026-07-17GREAT WALL MOTOR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GREAT WALL MOTOR CO LTD
- Filing Date
- 2023-11-09
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, increasing the tumble ratio in the intake manifold leads to a decrease in the flow coefficient, and it is impossible to simultaneously accommodate both direct in-cylinder injection and port injection methods.
Method used
The design of the main intake and branch intake ports of the cylinder head optimizes the airflow path by adjusting the tilt angle and extension direction of the inlet and outlet sections, combined with the design of the transition section, to ensure a balance between high tumble ratio and high flow coefficient.
Benefits of technology
It improves the cylinder tumble ratio and gas flow coefficient, and takes into account both port injection and in-cylinder injection methods to enhance engine performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117307349B_ABST
Abstract
本发明公开一种气缸盖、发动机和车辆，包括：主进气道和支进气道；主进气道具有进气端和出气端，进气端与进气歧管连通；支进气道包括第一支进气道和第二支进气道，第一支进气道和第二支进气道均具有进口段、过渡段和出口段，其中，出口段朝向第一方向延伸且朝向远离排气管的方向倾斜，进口段朝向第一方向延伸且朝向远离出口段的倾斜方向的方向倾斜，出口段的倾斜角度小于进口段的倾斜角度。通过对进口段和出口段的延伸方向和倾斜角度进行设计，并保证进口段的倾斜角度大于出口段的倾斜角度，能够有效减少空气在流通过程中的流量损失，使得空气的流通更加顺畅，同时，能够同时提高气缸内的滚流比和气体流量系数。
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