一种气体机复合燃烧系统及其控制方法
By employing a three-intake-valve arrangement and variable valve control, combined with vortex and tumble intake manifolds, a composite combustion system is formed, which solves the problems of slow initial flame core development and frequent knocking in medium and heavy-duty engines. This achieves efficient combustion and stable ignition, making it suitable for heavy-duty truck and marine power systems.
CN121345657BActive Publication Date: 2026-07-17TIANJIN UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN UNIV
- Filing Date
- 2025-11-25
- Publication Date
- 2026-07-17
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Figure CN121345657B_ABST
Abstract
本发明公开了一种气体机复合燃烧系统，适用于天然气、氨气等燃料的中重型发动机。系统采用三进气门与二排气门布置形式，两侧进气门配置为螺旋型涡流进气道，中间配置为滚流进气道，结合棚顶型气缸盖与偏心导流活塞，共同构建一种涡流与滚流协同作用的新型复合燃烧模式。该系统可在火花塞附近形成滚流，提升小尺度湍动能，促进初期火核发展；同时在燃烧室外围流场形成占主导地位的大尺度涡流，维持后期火焰快速传播，有效抑制末端气体产生爆震。本发明提出该复合燃烧系统的全工况可变气门的控制，可根据发动机负荷与转速动态调整进气门开闭时刻及气门升程，实现增压式深度米勒循环，从而显著提升重型卡车、船舶等中重型气体机热效率。
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