Cylinder sleeve for two-stroke opposed piston internal combustion engine

Abstract

The invention discloses a cylinder sleeve for a two-stroke opposed piston internal combustion engine. The cylinder sleeve comprises an opposed cylinder sleeve body provided with two opposed cavities for piston operation. The outer wall of the position, between the two opposed cavities, of the opposed cylinder sleeve body is provided with a gas inlet communicating with the opposed cylinder sleeve body, and the positions, on the outer walls of the two opposed cavities, of the opposed cylinder sleeve body are provided with exhaust outlets communicating with the corresponding opposed cavities; or the positions, on the outer walls of the two opposed cavities, of the opposed cylinder sleeve body are provided with gas inlets communicating with the corresponding opposed cavities, and the outer wall of the position, between the two opposed cavities, of the opposed cylinder sleeve body is provided with an exhaust outlet communicating with the opposed cylinder sleeve body. The cylinder sleeve has the advantages that gas change quality is high, the oil-gas mixing effect of a combustor can be improved, and efficiency can be promoted.

Description

technical field [0001] The invention mainly relates to the field of opposed-piston internal-combustion engines, in particular to a cylinder liner for a two-stroke opposed-piston internal-combustion engine. Background technique [0002] The traditional piston-type internal combustion engine includes two-stroke structure and four-stroke structure according to the working stroke. The piston completes a working cycle in two strokes, which is called a two-stroke internal combustion engine. Advanced merit. [0003] The ventilation methods of two-stroke internal combustion engines include two types: curved flow ventilation and direct ventilation. The lower part of the cylinder is provided with a scavenging port and an exhaust port. The ventilation of the cylinder is realized by the cooperation of the piston and the gas port, thereby simplifying the structure of the internal combustion engine. When the two-stroke internal combustion engine with DC ventilation structure is working, ...

AI Technical Summary

Problems solved by technology

[0007] The main problems are: first, exhaust interference and increased exhaust resistance, the exhaust gas is not discharged cleanly, there is exhaust gas residue in the cylinder during the exhaust process, the quality of ventilation is poor, and the effect of oil and gas combustion is affected; the second is to reduce the effective efficiency of the cylinder The working volume, reduces the effective compression ratio of the cylinder, weakens the oil-gas mixing effect, reduces the combustion efficiency, and has poor emissions; the third is that the heat load of the piston is relatively high

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