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Combustion control method that mixes homogeneous compression ignition and diffusion compression ignition with low octane gasoline

机译：将均质压燃和扩散压燃与低辛烷值汽油混合的燃烧控制方法

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摘要

A combustion control method that mixes homogeneous compression ignition with low octane number gasoline and diffusion compression ignition, using low octane number gasoline and using a control method with diffusion compression ignition as a countermeasure for forced ignition. While igniting the air-fuel mixture, compression ignition of the uniform air-fuel mixture is realized. In the intake stroke, a part of the fuel is injected into the cylinder or the intake manifold to generate a low concentration uniform premixed gas. Further, before the piston reaches the top dead center in the compression stroke, another part of the fuel is injected and introduced into the cylinder to diffuse and spontaneously ignite in the air, thereby realizing diffusion compression ignition. The flame burned by the diffusion compression ignition ignites the premixed gas in the cylinder, and realizes ignition combustion of uniform lean fuel. As the temperature and pressure in the cylinder rise, multipoint spontaneous ignition occurs inside the homogeneous lean mixture, and uniform compression ignition is realized. According to such a mixed combustion control method, knocking is avoided even though a high compression ratio, lean burn, stratified combustion and high-speed combustion are realized.

机译：一种燃烧控制方法，其将低辛烷值汽油的均质压缩点火与低辛烷值汽油混合，并且使用低辛烷值汽油并使用具有扩散压缩点火的控制方法作为强制点火的对策。在点燃混合气时，实现了均匀混合气的压缩点火。在进气冲程中，一部分燃料被喷射到气缸或进气歧管中，以产生低浓度均匀的预混合气体。此外，在活塞在压缩冲程中到达上止点之前，将另一部分燃料喷射并引入气缸中以在空气中扩散并自燃，从而实现扩散压缩点火。通过扩散压缩点火燃烧的火焰点燃气缸中的预混合气体，并实现均匀稀薄燃料的点火燃烧。随着气缸内温度和压力的升高，在均匀稀薄混合气内部会发生多点自燃，从而实现均匀的压缩点火。根据这种混合燃烧控制方法，即使实现了高压缩比，稀薄燃烧，分层燃烧和高速燃烧，也避免了爆震。

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公开/公告号JP2017504749A

专利类型
公开/公告日2017-02-09

原文格式PDF
申请/专利权人周向▲進▼;
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申请/专利号JP20160539149
发明设计人周向▲進▼;
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申请日2014-05-19
分类号F02D19/06;F02D41/02;F02D41/04;F02D41/34;F02D41/40;F02B77/11;F02M63;F02D23;F02D23/02;F02D21/08;F02B23/10;F02M53/02;F02M35/10;F02D19/08;F02M26/01;F02M26/04;F02M26/08;F02B37;F02B37/04;F02M31/125;F02M31/13;F01N13/14;F01N3/24;F01N3/023;
国家 JP
入库时间 2022-08-21 13:57:56

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