Fuel mixing and supplying mechanism of dual-fuel engine

By employing a self-aspirating hybrid design with cylinder bridges and compressor components in a dual-fuel engine, the problems of fuel ratio imbalance and complex air supply system are solved, resulting in improved combustion efficiency and stable power output, simplified air supply system structure, and reduced energy consumption.

CN121993300APending Publication Date: 2026-05-08CHANNEL FUKUHARA TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610227662.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-26
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing dual-fuel engines suffer from fuel mixing mechanisms that result in fuel ratio imbalances and mismatched supply rhythms, leading to low combustion efficiency, large fluctuations in power output, and complex gas supply systems with high energy consumption, making them difficult to adapt to different operating conditions.

Method used

It adopts a cylinder bridge and compressor assembly design, uses the self-priming method of the compressor piston to mix air and gas, and pumps fuel into the cylinder liner through the oil pumping mechanism to achieve quantitative fuel supply and proportional adjustment, simplifying the structure and reducing energy consumption.

Benefits of technology

Optimize the combustion process, improve combustion efficiency, reduce harmful gas emissions, ensure stable power output, simplify the gas supply system structure, and reduce energy consumption.

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Abstract

The invention discloses a fuel mixing and supplying mechanism of a dual-fuel engine, and relates to the field of fuel mixing, the fuel mixing and supplying mechanism comprises a cylinder bridge, a connecting rod, an air compression assembly and a cylinder assembly, the air compression assembly comprises an air compression outer barrel, an air compression inner barrel, an air compression piston and an air supply mechanism, and the cylinder assembly comprises a cylinder piston, an air cylinder sleeve and an oil pumping mechanism. When the air compression outer barrel moves along with the air cylinder bridge, the air supply mechanism sucks air and fuel gas in a self-suction mode through the pressure difference of a cavity in the air compression process, the air and the fuel gas are mixed in proportion, the mixed gas is conveyed into a combustion chamber of the air cylinder sleeve, and quantitative supply of the mixed gas can be achieved without additional supercharging equipment; fuel oil is pumped into the air cylinder sleeve through the oil pumping mechanism, the gas supply mechanism feeds mixed gas of fuel gas and air in a self-suction mode for layering or homogeneous mixing, the dual-fuel supply system can flexibly adjust the proportion of the fuel gas and the fuel oil according to the load working condition, the combustion process is optimized, and emission of harmful gas is reduced while power output is guaranteed.
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