Cylinder liners for opposed piston engines

Abstract

The invention discloses a cylinder liner for an opposed-piston engine, which comprises an opposed cylinder liner body. The opposed cylinder liner body is provided with two opposed cavities for piston operation. An annular flange is arranged between them, and an annular semi-combustion chamber is arranged at the center of the annular flange, and the annular semi-combustion chamber and the combustion chambers of the two pistons form the total combustion chamber together. The cylinder liner has the advantages of high strength, ingenious design, can reduce the heat load on the top of the piston, can reduce the height of the piston and reduce the weight of the piston.

Description

technical field [0001] The invention mainly relates to the field of opposed-piston engines, in particular to a cylinder liner for opposed-piston engines. Background technique [0002] The emission upgrade of piston engines also promotes technological progress and innovation in the engine parts industry. Compared with four-stroke engines, two-stroke engines are simple in structure, small in size, light in weight, low in cost, easy to manufacture and maintain, small in size and high in power per liter ;The two-stroke opposed-piston engine cylinder layout is symmetrically arranged, the main structure is compact and stable, the liter power and specific weight are higher, the engine crankshaft is evenly distributed on both sides of the piston, the same cylinder volume is smaller, and the power loss when the engine is running Small, therefore, this type of engine has a small volume and a higher power per liter, and the manufacturing cost is lower. [0003] The cylinder liner of t...

AI Technical Summary

Problems solved by technology

In order to meet the working requirements of high heat load, the piston basically adopts steel structure. In order to obtain better oil-air mixing effect and form an effective combustion chamber on the top of the opposite piston, an opening groove is provided on the top of the piston to facilitate the passage of the fuel injector. The engine During operation, part of the high-pressure and high-temperature gas enters the fire bank from the open slot, and the fire bank of the piston is longer, which is easy to deposit carbon and increases the weight of the piston.

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