一种适用甲醇燃料的进气道喷油嘴

By using methanol-resistant sealing materials, stainless steel mesh, ceramic coatings, and other technologies in the fuel injector, the wear resistance and corrosion problems of methanol fuel injectors in low viscosity environments have been solved, achieving improved compatibility and durability with existing systems.

CN122407423APending Publication Date: 2026-07-17DELPHI SHANGHAI DYNAMICS AND PROPULSION SYSTEMS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DELPHI SHANGHAI DYNAMICS AND PROPULSION SYSTEMS CO LTD
Filing Date
2026-06-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methanol fuel injectors have low wear resistance, poor dynamic response optimization, low precision gap control, and low pollution resistance in low viscosity environments. This leads to rapid wear and performance degradation of the injectors in methanol fuel environments, affecting engine power, economy, and emissions.

Method used

By employing methanol-resistant sealing materials and surface treatments (such as fluororubber, PTFE, plating/coating), combined with stainless steel mesh and hard ceramic coating, the corrosion resistance and durability of the fuel injectors are improved, while maintaining compatibility with existing engines and infrastructure.

Benefits of technology

Significantly improves the durability and corrosion resistance of fuel injectors, extends their service life, reduces retrofit costs, and ensures compatibility and stability with existing systems.

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Abstract

本发明涉及一种适用甲醇燃料的进气道喷油嘴，包括：上密封圈，套设在进油口外侧，为耐甲醇的橡胶密封圈；集成滤网的标定杆组件，集成滤网的标定杆组件的标定杆一端与进油通道连接，另一端伸向内部流道，集成滤网的标定杆组件的滤网为不锈钢网格，标定杆为不锈钢；上衔铁，上衔铁设有硬质陶瓷涂层；弹簧，安装在上衔铁与下衔铁之间；下衔铁，设有硬质陶瓷涂层；密封球，位于喷油嘴下部阀座处，与密封阀座配合形成密封副，随下衔铁升降，实现阀口开启 / 关闭；密封球设有类金刚石碳镀层；下导油基体；下密封圈，为耐甲醇的橡胶密封圈；多孔喷孔板。与现有技术相比，本发明具有提升耐腐蚀性与耐久性，高度兼容现有发动机与基础设施等优点。
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Citation Information

Patent Citations

  • Methanol injector

    CN110985253A