Jet flow-compression ignition combustion system of double-swirl combustion chamber

Abstract

The invention discloses a jet flow-compression ignition combustion system of a double-swirl combustion chamber. The jet flow-compression ignition combustion system comprises a cylinder cover, a nozzle, a jet flow chamber and a spark plug; a fuel supply channel is arranged on the cylinder cover; the nozzle is arranged on the side wall of the cylinder cover; the jet flow chamber is installed on the cylinder cover and is coaxial with the air cylinder; the spark plug is in communication with the jet flow chamber and is positioned right above the jet flow chamber; the jet flow chamber is provided with a plurality of jet flow holes; one end of the fuel supply channel is in communication with the nozzle, and the other end is in communication with the jet flow chamber through one or more fuel inlets formed in the jet flow chamber; the cylinder cover is connected to a cylinder sleeve, and a piston is arranged in the cylinder sleeve; and a concave ring groove is formed in the top of the piston, the center of the piston is cut by the concave ring groove to form a conical protrusion, and the center of the conical protrusion right faces the axis of the jet flow chamber. According to the jet flow-compression ignition combustion system, the possibility that detonation is induced by tail end mixed spontaneous combustion is reduced, and the structural stability, anti-detonation performance and reliability of the engine can be improved.

Description

technical field [0001] The invention belongs to the technical field of automobile engines, and relates to a design of a combustion system in an internal combustion engine and an organization method of a combustion mode, in particular to a jet-compression ignition combustion system of a double swirl combustion chamber. Background technique [0002] For the traditional spark-ignition gasoline engine, the combustion adopts the technical route of equivalent ratio combustion and relies on single-point flame propagation; this has two limitations. First, the equivalent ratio combustion is not conducive to the improvement of thermal efficiency. For energy saving and emission reduction, the technical route of internal combustion engine combustion must adopt lean combustion; secondly, spark ignition depends on the speed of flame propagation, and the speed of flame propagation at a single point restricts the improvement of the combustion capacity of the engine, which is not conducive to...

AI Technical Summary

Problems solved by technology

The traditional structural design cannot match the current new combustion mode, so the combustion system structure needs to be designed to match the characteristics of the combustion mode

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