用于内燃机的气体喷射器

By using sealing membranes of different sizes and lubricating fluid designs in the gas injector, problems such as fuel leakage, pressure drop, and component embrittlement in hydrogen engines have been solved, resulting in more efficient fuel injection and component durability.

CN122422646APending Publication Date: 2026-07-17PHINIA DELPHI LUXEMBOURG SARL
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Gas fuel injectors in hydrogen engines face problems such as fuel leakage, excessive pressure drop, lack of self-lubrication and compression damping characteristics, and component embrittlement.

Method used

A gas injector was designed using sealing membranes of different sizes (the distal sealing membrane is wider than the proximal sealing membrane) to balance the pressure of the pressurized gas. Combined with a magnetic armature and lubricating fluid, a straight gas channel is formed to prevent fuel from flowing around the pivot, reduce pressure drop, and reduce the impact velocity of the pivot on the valve seat through the lubricating fluid.

Benefits of technology

The durability and stability of the gas injector have been optimized, fuel leakage and pressure drop have been reduced, the risk of hydrogen embrittlement of components has been reduced, and flowability and drive efficiency have been improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122422646A_ABST
    Figure CN122422646A_ABST
Patent Text Reader

Abstract

本发明提供了一种用于内燃机的气体喷射器（10），该气体喷射器沿着喷射器轴线（A）从近侧（P）延伸到远侧（D）并且包括：喷射器主体（12），该喷射器主体限定从近侧入口部分（14）延伸到远侧出口部分（18）的通道（20），该通道具有由阀座（24）围绕的出口开口（22）；向外打开的枢轴（26），该枢轴具有枢轴轴（28）和枢轴头（30），其中枢轴（26）能够沿着喷射器轴线（A）在关闭位置和打开位置之间移动，在关闭位置中，枢轴头（30）接合所述出口阀座（24）以防止气流通过出口开口（22），在打开位置中，枢轴头（30）从阀座（24）向远侧间隔开以使得气流能够通过出口开口（22）；磁性电枢，该磁性电枢在喷射器轴线的方向上机械地联接到所述枢轴轴；以及弹簧，该弹簧被布置成将所述枢轴朝向其关闭位置偏置。枢轴轴（28）包括沿着喷射器轴线延伸的中空长度（28.1），并且枢轴包括近侧孔（26.1）和远侧孔（26.2），从而在入口部分（14）和出口部分（18）之间限定轴向气体通道，至少两个柔性密封膜（40、42）在喷射器主体（12）和枢轴轴（28）之间延伸，密封膜（40、42）轴向间隔开并且构造成将轴向气体通道与气体喷射器（10）的中间部分（44）密封地隔离，中间部分（44）至少部分地围绕枢轴轴（28）并且适于容纳润滑流体，并且所述电枢（32）和所述弹簧（34）布置在所述中间部分中。根据本发明，远侧密封膜（42）的平均内径Ø2大于近侧密封膜（40）的平均内径Ø1。
Need to check novelty before this filing date? Find Prior Art