Methanol engine and vehicle

Abstract

The invention provides a methanol engine and a vehicle thereof and relates to the field of methanol engines. The methanol engine is characterized in that an injector assembly comprising mutually independent gasoline injection components and methanol injection components are arranged on an engine intake manifold; a methanol injector and a gasoline cold start injector, which can directly spray methanol and gasoline into the manifold, are separately installed at a corresponding manifold of each cylinder in the methanol engine. Due to the fact that the gasoline cold start injector is provided at the manifold of each cylinder to directly injecting the gasoline into the manifold of the intake manifold to mix with the air instead of directly injecting gasoline into an air intake pressure stabilization chamber of the intake manifold to be mixed with the air and then distributed to the manifold, the methanol engine has the advantages of effectively controlling the amount of gasoline injection,avoiding the problem of engine cold start failure caused by insufficient oil supply during cold start of the methanol engine, and also avoiding the problem of excessive emission of the methanol enginedue to excessive oil injection during cold start.

Description

technical field [0001] The invention relates to the field of methanol engines, in particular to a methanol engine and a vehicle. Background technique [0002] With the intensification of energy pressure and pollution problems, the increase in car ownership, and the diversification of vehicle fuels, methanol is a clean energy, which is not only economical, low-carbon and environmentally friendly, but also reduces carbon dioxide emissions. Methanol fuel engines are gradually becoming more and more popular. in marketization. [0003] At present, the fuel supply of domestic heavy-duty methanol engines mainly adopts the dual-fuel combustion method of diesel and methanol, that is, a methanol injection system is added to the intake elbow of a traditional diesel engine for single-point injection. When working, the engine works with pure diesel to implement diffusion combustion; at medium and high loads, part of the methanol fuel is injected into the intake elbow of the diesel engin...

AI Technical Summary

Problems solved by technology

[0007] When the engine is working at a medium or high load, the fuel substitution rate of the current dual-fuel methanol engine is only 30%, and the NOx and particulate matter emissions of the engine can only reach the national III emission level of diesel engines, and the economic advantages are not obvious

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